ETH Price: $3,484.13 (+1.02%)

Token

Xtremeverse (XTREME)
 

Overview

Max Total Supply

3,000 XTREME

Holders

494 (0.00%)

Market

Price

$68.22 @ 0.019580 ETH (-23.75%)

Onchain Market Cap

$204,655.60

Circulating Supply Market Cap

$0.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
det0n.eth
Balance
1 XTREME

Value
$68.22 ( ~0.0195802204787001 Eth) [0.0333%]
0xff1b29b91c66ef274180eea4319a49b7438db427
Loading...
Loading
Loading...
Loading
Loading...
Loading

OVERVIEW

Web3 anime gaming universe with 1M monthly gamers across community platforms, anime mobile shooter.

Market

Volume (24H):$0.00
Market Capitalization:$0.00
Circulating Supply:0.00 XTREME
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume

Contract Source Code Verified (Exact Match)

Contract Name:
Xtremeverse

Compiler Version
v0.8.24+commit.e11b9ed9

Optimization Enabled:
Yes with 10000 runs

Other Settings:
paris EvmVersion
File 1 of 7 : Xtremeverse.sol
pragma solidity ^0.8.4;

import "./DN404.sol";
import "solady/src/auth/Ownable.sol";
import "solady/src/utils/LibString.sol";
import "solady/src/utils/SafeTransferLib.sol";
import "solady/src/utils/MerkleProofLib.sol";
import "solady/src/utils/GasBurnerLib.sol";

contract Xtremeverse is DN404, Ownable {

    string private _name;
    string private _symbol;
    string private _baseURI;

    bytes32 private _gtdAllowlistRoot;
    bytes32 private _fcfsAllowlistRoot;
    uint256 private _gtdStartTime = 0;
    uint256 private _fcfsStartTime = 0;
    uint256 private _publicStartTime = 0;

    uint32 public totalMinted;

    uint32 public constant MAX_PER_WALLET = 1;
    uint32 public constant MAX_SUPPLY = 3000;
    uint96 public constant mintPrice = 0.06 ether;

    bool public gasBurnFactorLocked = false;
    uint32 public gasBurnFactor;

    error InvalidProof();
    error InvalidMint();
    error InvalidPrice();
    error TotalSupplyReached();
    error NotLive();
    error Locked();

    constructor() {
        _construct(tx.origin);
    }

    function _construct(address initialOwner) internal {
        _initializeOwner(initialOwner);
        _name = "Xtremeverse";
        _symbol = "XTREME";
    }

    function initialize(address mirror) public onlyOwner {
        _initializeDN404(0, address(0), mirror);
    }

    modifier checkPrice() {
        if (mintPrice != msg.value) {
            revert InvalidPrice();
        }
        _;
    }

    modifier checkAndUpdateTotalMinted() {
        uint256 newTotalMinted = uint256(totalMinted) + 1;
        if (newTotalMinted > MAX_SUPPLY) {
            revert TotalSupplyReached();
        }
        totalMinted = uint32(newTotalMinted);
        _;
    }

    modifier checkAndUpdateBuyerMintCount() {
        uint256 currentMintCount = _getAux(msg.sender);
        uint256 newMintCount = currentMintCount + 1;
        if (newMintCount > MAX_PER_WALLET) {
            revert InvalidMint();
        }
        _setAux(msg.sender, uint88(newMintCount));
        _;
    }

    /*
    mintType - 0 -> gtd, 1 -> fcfs, 2 -> public
    */
    function mint(uint8 mintType, bytes32[] calldata proof)
        public
        payable
        checkPrice
        checkAndUpdateBuyerMintCount
        checkAndUpdateTotalMinted
    {
        if (mintType == 0) {
            if (block.timestamp < _gtdStartTime) {
                revert NotLive();
            }
            bytes32 leaf = keccak256(abi.encodePacked(msg.sender));
            if (!MerkleProofLib.verifyCalldata(proof, _gtdAllowlistRoot, leaf)) {
                revert InvalidProof();
            }
        } else if (mintType == 1) {
            if (block.timestamp < _fcfsStartTime) {
                revert NotLive();
            }
            bytes32 leaf = keccak256(abi.encodePacked(msg.sender));
            if (!MerkleProofLib.verifyCalldata(proof, _fcfsAllowlistRoot, leaf)) {
                revert InvalidProof();
            }
        } else if (mintType == 2) {
            if (block.timestamp < _publicStartTime) {
                revert NotLive();
            }
        } else {
            revert InvalidMint();
        }
    
        _mint(msg.sender, 1 * _unit());
    }

    function batchAirdropMint(address[] memory addresses, uint256 nftAmount) 
        public onlyOwner
    {
        uint256 newMintCount = nftAmount * addresses.length;
        uint256 newTotalMinted = uint256(totalMinted) + newMintCount;
        if (newTotalMinted > MAX_SUPPLY) {
            revert TotalSupplyReached();
        }
        totalMinted = uint32(newTotalMinted);

        for (uint256 i = 0; i < addresses.length; i++) {
            _mint(addresses[i], nftAmount * _unit());
        }
    }

    function setMintStartTimes(
        uint256 __gtdStartTime,
        uint256 __fcfsStartTime,
        uint256 __publicStartTime
    ) external onlyOwner {
        _gtdStartTime = __gtdStartTime;
        _fcfsStartTime = __fcfsStartTime;
        _publicStartTime = __publicStartTime;
    }

    function setAllowlistRoots(
       bytes32 __gtdAllowlistRoot,
        bytes32 __fcfsAllowlistRoot
    ) external onlyOwner {
        _gtdAllowlistRoot = __gtdAllowlistRoot;
        _fcfsAllowlistRoot = __fcfsAllowlistRoot;
    }

    function setBaseURI(string calldata baseURI_) public onlyOwner {
        _baseURI = baseURI_;
    }

    function withdraw() public onlyOwner {
        SafeTransferLib.safeTransferAllETH(msg.sender);
    }

    function name() public view override returns (string memory) {
        return _name;
    }

    function symbol() public view override returns (string memory) {
        return _symbol;
    }

    function tokenURI(uint256 tokenId) public view override returns (string memory result) {
        if (bytes(_baseURI).length != 0) {
            result = string(abi.encodePacked(_baseURI, LibString.toString(tokenId)));
        }
    }

    function ownedIds(address owner, uint256 begin, uint256 end) public view returns (uint256[] memory result) {
        return _ownedIds(owner, begin, end);
    }

    function balanceOfNFT(address owner) public view virtual returns (uint256) {
        return _balanceOfNFT(owner);
    }

    function _transfer(address from, address to, uint256 amount) internal virtual override {
        super._transfer(from, to, amount);
        if (from != to) _applyGasBurn(from);
    }

    function _transferFromNFT(address from, address to, uint256 id, address msgSender) internal virtual override
    {
        super._transferFromNFT(from, to, id, msgSender);
        if (from != to) _applyGasBurn(from);
    }

    function _approve(address owner, address spender, uint256 amount) internal virtual override {
        super._approve(owner, spender, amount);
        _applyGasBurn(owner);
    }

    function _approveNFT(address spender, uint256 id, address msgSender)
        internal
        virtual
        override
        returns (address owner)
    {
        _applyGasBurn(msgSender);
        return super._approveNFT(spender, id, msgSender);
    }

    function _setApprovalForAll(address operator, bool approved, address msgSender)
        internal
        virtual
        override
    {
        _applyGasBurn(msgSender);
        super._setApprovalForAll(operator, approved, msgSender);
    }

    function lockGasBurnFactor() public onlyOwner {
        gasBurnFactorLocked = true;
    }

    function setGasBurnFactor(uint32 gasBurnFactor_) public onlyOwner {
        if (gasBurnFactorLocked) revert Locked();
        gasBurnFactor = gasBurnFactor_;
    }

    function _applyGasBurn(address from) internal {
        unchecked {
            uint256 factor = gasBurnFactor;
            if (factor == 0) return;
            if (from == owner()) return;
            GasBurnerLib.burn(factor);
        }
    }
}

File 2 of 7 : Ownable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Simple single owner authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/Ownable.sol)
///
/// @dev Note:
/// This implementation does NOT auto-initialize the owner to `msg.sender`.
/// You MUST call the `_initializeOwner` in the constructor / initializer.
///
/// While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract Ownable {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The caller is not authorized to call the function.
    error Unauthorized();

    /// @dev The `newOwner` cannot be the zero address.
    error NewOwnerIsZeroAddress();

    /// @dev The `pendingOwner` does not have a valid handover request.
    error NoHandoverRequest();

    /// @dev Cannot double-initialize.
    error AlreadyInitialized();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The ownership is transferred from `oldOwner` to `newOwner`.
    /// This event is intentionally kept the same as OpenZeppelin's Ownable to be
    /// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173),
    /// despite it not being as lightweight as a single argument event.
    event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);

    /// @dev An ownership handover to `pendingOwner` has been requested.
    event OwnershipHandoverRequested(address indexed pendingOwner);

    /// @dev The ownership handover to `pendingOwner` has been canceled.
    event OwnershipHandoverCanceled(address indexed pendingOwner);

    /// @dev `keccak256(bytes("OwnershipTransferred(address,address)"))`.
    uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE =
        0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0;

    /// @dev `keccak256(bytes("OwnershipHandoverRequested(address)"))`.
    uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE =
        0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d;

    /// @dev `keccak256(bytes("OwnershipHandoverCanceled(address)"))`.
    uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE =
        0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The owner slot is given by:
    /// `bytes32(~uint256(uint32(bytes4(keccak256("_OWNER_SLOT_NOT")))))`.
    /// It is intentionally chosen to be a high value
    /// to avoid collision with lower slots.
    /// The choice of manual storage layout is to enable compatibility
    /// with both regular and upgradeable contracts.
    bytes32 internal constant _OWNER_SLOT =
        0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff74873927;

    /// The ownership handover slot of `newOwner` is given by:
    /// ```
    ///     mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED))
    ///     let handoverSlot := keccak256(0x00, 0x20)
    /// ```
    /// It stores the expiry timestamp of the two-step ownership handover.
    uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     INTERNAL FUNCTIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Override to return true to make `_initializeOwner` prevent double-initialization.
    function _guardInitializeOwner() internal pure virtual returns (bool guard) {}

    /// @dev Initializes the owner directly without authorization guard.
    /// This function must be called upon initialization,
    /// regardless of whether the contract is upgradeable or not.
    /// This is to enable generalization to both regular and upgradeable contracts,
    /// and to save gas in case the initial owner is not the caller.
    /// For performance reasons, this function will not check if there
    /// is an existing owner.
    function _initializeOwner(address newOwner) internal virtual {
        if (_guardInitializeOwner()) {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                if sload(ownerSlot) {
                    mstore(0x00, 0x0dc149f0) // `AlreadyInitialized()`.
                    revert(0x1c, 0x04)
                }
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Store the new value.
                sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
            }
        } else {
            /// @solidity memory-safe-assembly
            assembly {
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Store the new value.
                sstore(_OWNER_SLOT, newOwner)
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
            }
        }
    }

    /// @dev Sets the owner directly without authorization guard.
    function _setOwner(address newOwner) internal virtual {
        if (_guardInitializeOwner()) {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
                // Store the new value.
                sstore(ownerSlot, or(newOwner, shl(255, iszero(newOwner))))
            }
        } else {
            /// @solidity memory-safe-assembly
            assembly {
                let ownerSlot := _OWNER_SLOT
                // Clean the upper 96 bits.
                newOwner := shr(96, shl(96, newOwner))
                // Emit the {OwnershipTransferred} event.
                log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
                // Store the new value.
                sstore(ownerSlot, newOwner)
            }
        }
    }

    /// @dev Throws if the sender is not the owner.
    function _checkOwner() internal view virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // If the caller is not the stored owner, revert.
            if iszero(eq(caller(), sload(_OWNER_SLOT))) {
                mstore(0x00, 0x82b42900) // `Unauthorized()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Returns how long a two-step ownership handover is valid for in seconds.
    /// Override to return a different value if needed.
    /// Made internal to conserve bytecode. Wrap it in a public function if needed.
    function _ownershipHandoverValidFor() internal view virtual returns (uint64) {
        return 48 * 3600;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  PUBLIC UPDATE FUNCTIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Allows the owner to transfer the ownership to `newOwner`.
    function transferOwnership(address newOwner) public payable virtual onlyOwner {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(shl(96, newOwner)) {
                mstore(0x00, 0x7448fbae) // `NewOwnerIsZeroAddress()`.
                revert(0x1c, 0x04)
            }
        }
        _setOwner(newOwner);
    }

    /// @dev Allows the owner to renounce their ownership.
    function renounceOwnership() public payable virtual onlyOwner {
        _setOwner(address(0));
    }

    /// @dev Request a two-step ownership handover to the caller.
    /// The request will automatically expire in 48 hours (172800 seconds) by default.
    function requestOwnershipHandover() public payable virtual {
        unchecked {
            uint256 expires = block.timestamp + _ownershipHandoverValidFor();
            /// @solidity memory-safe-assembly
            assembly {
                // Compute and set the handover slot to `expires`.
                mstore(0x0c, _HANDOVER_SLOT_SEED)
                mstore(0x00, caller())
                sstore(keccak256(0x0c, 0x20), expires)
                // Emit the {OwnershipHandoverRequested} event.
                log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller())
            }
        }
    }

    /// @dev Cancels the two-step ownership handover to the caller, if any.
    function cancelOwnershipHandover() public payable virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute and set the handover slot to 0.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, caller())
            sstore(keccak256(0x0c, 0x20), 0)
            // Emit the {OwnershipHandoverCanceled} event.
            log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller())
        }
    }

    /// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`.
    /// Reverts if there is no existing ownership handover requested by `pendingOwner`.
    function completeOwnershipHandover(address pendingOwner) public payable virtual onlyOwner {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute and set the handover slot to 0.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, pendingOwner)
            let handoverSlot := keccak256(0x0c, 0x20)
            // If the handover does not exist, or has expired.
            if gt(timestamp(), sload(handoverSlot)) {
                mstore(0x00, 0x6f5e8818) // `NoHandoverRequest()`.
                revert(0x1c, 0x04)
            }
            // Set the handover slot to 0.
            sstore(handoverSlot, 0)
        }
        _setOwner(pendingOwner);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   PUBLIC READ FUNCTIONS                    */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the owner of the contract.
    function owner() public view virtual returns (address result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := sload(_OWNER_SLOT)
        }
    }

    /// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`.
    function ownershipHandoverExpiresAt(address pendingOwner)
        public
        view
        virtual
        returns (uint256 result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the handover slot.
            mstore(0x0c, _HANDOVER_SLOT_SEED)
            mstore(0x00, pendingOwner)
            // Load the handover slot.
            result := sload(keccak256(0x0c, 0x20))
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         MODIFIERS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Marks a function as only callable by the owner.
    modifier onlyOwner() virtual {
        _checkOwner();
        _;
    }
}

File 3 of 7 : GasBurnerLib.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Library for burning gas without reverting.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/GasBurnerLib.sol)
library GasBurnerLib {
    /// @dev Burns approximately `x` amount of gas.
    /// Intended for Contract Secured Revenue (CSR).
    ///
    /// Recommendation: pass in an admin-controlled dynamic value instead of a hardcoded one.
    /// This is so that you can adjust your contract as needed depending on market conditions,
    /// and to give you and your users a leeway in case the L2 chain change the rules.
    function burn(uint256 x) internal pure {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x10, or(1, x))
            let n := mul(gt(x, 120), div(x, 91))
            // We use keccak256 instead of blake2f precompile for better widespread compatibility.
            for { let i := 0 } iszero(eq(i, n)) { i := add(i, 1) } {
                mstore(0x10, keccak256(0x10, 0x10)) // Yes.
            }
            if iszero(mload(0x10)) { invalid() }
        }
    }
}

File 4 of 7 : LibString.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Library for converting numbers into strings and other string operations.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/LibString.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/LibString.sol)
///
/// @dev Note:
/// For performance and bytecode compactness, most of the string operations are restricted to
/// byte strings (7-bit ASCII), except where otherwise specified.
/// Usage of byte string operations on charsets with runes spanning two or more bytes
/// can lead to undefined behavior.
library LibString {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                        CUSTOM ERRORS                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The length of the output is too small to contain all the hex digits.
    error HexLengthInsufficient();

    /// @dev The length of the string is more than 32 bytes.
    error TooBigForSmallString();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         CONSTANTS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The constant returned when the `search` is not found in the string.
    uint256 internal constant NOT_FOUND = type(uint256).max;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     DECIMAL OPERATIONS                     */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the base 10 decimal representation of `value`.
    function toString(uint256 value) internal pure returns (string memory str) {
        /// @solidity memory-safe-assembly
        assembly {
            // The maximum value of a uint256 contains 78 digits (1 byte per digit), but
            // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
            // We will need 1 word for the trailing zeros padding, 1 word for the length,
            // and 3 words for a maximum of 78 digits.
            str := add(mload(0x40), 0x80)
            // Update the free memory pointer to allocate.
            mstore(0x40, add(str, 0x20))
            // Zeroize the slot after the string.
            mstore(str, 0)

            // Cache the end of the memory to calculate the length later.
            let end := str

            let w := not(0) // Tsk.
            // We write the string from rightmost digit to leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            for { let temp := value } 1 {} {
                str := add(str, w) // `sub(str, 1)`.
                // Write the character to the pointer.
                // The ASCII index of the '0' character is 48.
                mstore8(str, add(48, mod(temp, 10)))
                // Keep dividing `temp` until zero.
                temp := div(temp, 10)
                if iszero(temp) { break }
            }

            let length := sub(end, str)
            // Move the pointer 32 bytes leftwards to make room for the length.
            str := sub(str, 0x20)
            // Store the length.
            mstore(str, length)
        }
    }

    /// @dev Returns the base 10 decimal representation of `value`.
    function toString(int256 value) internal pure returns (string memory str) {
        if (value >= 0) {
            return toString(uint256(value));
        }
        unchecked {
            str = toString(~uint256(value) + 1);
        }
        /// @solidity memory-safe-assembly
        assembly {
            // We still have some spare memory space on the left,
            // as we have allocated 3 words (96 bytes) for up to 78 digits.
            let length := mload(str) // Load the string length.
            mstore(str, 0x2d) // Store the '-' character.
            str := sub(str, 1) // Move back the string pointer by a byte.
            mstore(str, add(length, 1)) // Update the string length.
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   HEXADECIMAL OPERATIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the hexadecimal representation of `value`,
    /// left-padded to an input length of `length` bytes.
    /// The output is prefixed with "0x" encoded using 2 hexadecimal digits per byte,
    /// giving a total length of `length * 2 + 2` bytes.
    /// Reverts if `length` is too small for the output to contain all the digits.
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory str) {
        str = toHexStringNoPrefix(value, length);
        /// @solidity memory-safe-assembly
        assembly {
            let strLength := add(mload(str), 2) // Compute the length.
            mstore(str, 0x3078) // Write the "0x" prefix.
            str := sub(str, 2) // Move the pointer.
            mstore(str, strLength) // Write the length.
        }
    }

    /// @dev Returns the hexadecimal representation of `value`,
    /// left-padded to an input length of `length` bytes.
    /// The output is prefixed with "0x" encoded using 2 hexadecimal digits per byte,
    /// giving a total length of `length * 2` bytes.
    /// Reverts if `length` is too small for the output to contain all the digits.
    function toHexStringNoPrefix(uint256 value, uint256 length)
        internal
        pure
        returns (string memory str)
    {
        /// @solidity memory-safe-assembly
        assembly {
            // We need 0x20 bytes for the trailing zeros padding, `length * 2` bytes
            // for the digits, 0x02 bytes for the prefix, and 0x20 bytes for the length.
            // We add 0x20 to the total and round down to a multiple of 0x20.
            // (0x20 + 0x20 + 0x02 + 0x20) = 0x62.
            str := add(mload(0x40), and(add(shl(1, length), 0x42), not(0x1f)))
            // Allocate the memory.
            mstore(0x40, add(str, 0x20))
            // Zeroize the slot after the string.
            mstore(str, 0)

            // Cache the end to calculate the length later.
            let end := str
            // Store "0123456789abcdef" in scratch space.
            mstore(0x0f, 0x30313233343536373839616263646566)

            let start := sub(str, add(length, length))
            let w := not(1) // Tsk.
            let temp := value
            // We write the string from rightmost digit to leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            for {} 1 {} {
                str := add(str, w) // `sub(str, 2)`.
                mstore8(add(str, 1), mload(and(temp, 15)))
                mstore8(str, mload(and(shr(4, temp), 15)))
                temp := shr(8, temp)
                if iszero(xor(str, start)) { break }
            }

            if temp {
                mstore(0x00, 0x2194895a) // `HexLengthInsufficient()`.
                revert(0x1c, 0x04)
            }

            // Compute the string's length.
            let strLength := sub(end, str)
            // Move the pointer and write the length.
            str := sub(str, 0x20)
            mstore(str, strLength)
        }
    }

    /// @dev Returns the hexadecimal representation of `value`.
    /// The output is prefixed with "0x" and encoded using 2 hexadecimal digits per byte.
    /// As address are 20 bytes long, the output will left-padded to have
    /// a length of `20 * 2 + 2` bytes.
    function toHexString(uint256 value) internal pure returns (string memory str) {
        str = toHexStringNoPrefix(value);
        /// @solidity memory-safe-assembly
        assembly {
            let strLength := add(mload(str), 2) // Compute the length.
            mstore(str, 0x3078) // Write the "0x" prefix.
            str := sub(str, 2) // Move the pointer.
            mstore(str, strLength) // Write the length.
        }
    }

    /// @dev Returns the hexadecimal representation of `value`.
    /// The output is prefixed with "0x".
    /// The output excludes leading "0" from the `toHexString` output.
    /// `0x00: "0x0", 0x01: "0x1", 0x12: "0x12", 0x123: "0x123"`.
    function toMinimalHexString(uint256 value) internal pure returns (string memory str) {
        str = toHexStringNoPrefix(value);
        /// @solidity memory-safe-assembly
        assembly {
            let o := eq(byte(0, mload(add(str, 0x20))), 0x30) // Whether leading zero is present.
            let strLength := add(mload(str), 2) // Compute the length.
            mstore(add(str, o), 0x3078) // Write the "0x" prefix, accounting for leading zero.
            str := sub(add(str, o), 2) // Move the pointer, accounting for leading zero.
            mstore(str, sub(strLength, o)) // Write the length, accounting for leading zero.
        }
    }

    /// @dev Returns the hexadecimal representation of `value`.
    /// The output excludes leading "0" from the `toHexStringNoPrefix` output.
    /// `0x00: "0", 0x01: "1", 0x12: "12", 0x123: "123"`.
    function toMinimalHexStringNoPrefix(uint256 value) internal pure returns (string memory str) {
        str = toHexStringNoPrefix(value);
        /// @solidity memory-safe-assembly
        assembly {
            let o := eq(byte(0, mload(add(str, 0x20))), 0x30) // Whether leading zero is present.
            let strLength := mload(str) // Get the length.
            str := add(str, o) // Move the pointer, accounting for leading zero.
            mstore(str, sub(strLength, o)) // Write the length, accounting for leading zero.
        }
    }

    /// @dev Returns the hexadecimal representation of `value`.
    /// The output is encoded using 2 hexadecimal digits per byte.
    /// As address are 20 bytes long, the output will left-padded to have
    /// a length of `20 * 2` bytes.
    function toHexStringNoPrefix(uint256 value) internal pure returns (string memory str) {
        /// @solidity memory-safe-assembly
        assembly {
            // We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,
            // 0x02 bytes for the prefix, and 0x40 bytes for the digits.
            // The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x40) is 0xa0.
            str := add(mload(0x40), 0x80)
            // Allocate the memory.
            mstore(0x40, add(str, 0x20))
            // Zeroize the slot after the string.
            mstore(str, 0)

            // Cache the end to calculate the length later.
            let end := str
            // Store "0123456789abcdef" in scratch space.
            mstore(0x0f, 0x30313233343536373839616263646566)

            let w := not(1) // Tsk.
            // We write the string from rightmost digit to leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            for { let temp := value } 1 {} {
                str := add(str, w) // `sub(str, 2)`.
                mstore8(add(str, 1), mload(and(temp, 15)))
                mstore8(str, mload(and(shr(4, temp), 15)))
                temp := shr(8, temp)
                if iszero(temp) { break }
            }

            // Compute the string's length.
            let strLength := sub(end, str)
            // Move the pointer and write the length.
            str := sub(str, 0x20)
            mstore(str, strLength)
        }
    }

    /// @dev Returns the hexadecimal representation of `value`.
    /// The output is prefixed with "0x", encoded using 2 hexadecimal digits per byte,
    /// and the alphabets are capitalized conditionally according to
    /// https://eips.ethereum.org/EIPS/eip-55
    function toHexStringChecksummed(address value) internal pure returns (string memory str) {
        str = toHexString(value);
        /// @solidity memory-safe-assembly
        assembly {
            let mask := shl(6, div(not(0), 255)) // `0b010000000100000000 ...`
            let o := add(str, 0x22)
            let hashed := and(keccak256(o, 40), mul(34, mask)) // `0b10001000 ... `
            let t := shl(240, 136) // `0b10001000 << 240`
            for { let i := 0 } 1 {} {
                mstore(add(i, i), mul(t, byte(i, hashed)))
                i := add(i, 1)
                if eq(i, 20) { break }
            }
            mstore(o, xor(mload(o), shr(1, and(mload(0x00), and(mload(o), mask)))))
            o := add(o, 0x20)
            mstore(o, xor(mload(o), shr(1, and(mload(0x20), and(mload(o), mask)))))
        }
    }

    /// @dev Returns the hexadecimal representation of `value`.
    /// The output is prefixed with "0x" and encoded using 2 hexadecimal digits per byte.
    function toHexString(address value) internal pure returns (string memory str) {
        str = toHexStringNoPrefix(value);
        /// @solidity memory-safe-assembly
        assembly {
            let strLength := add(mload(str), 2) // Compute the length.
            mstore(str, 0x3078) // Write the "0x" prefix.
            str := sub(str, 2) // Move the pointer.
            mstore(str, strLength) // Write the length.
        }
    }

    /// @dev Returns the hexadecimal representation of `value`.
    /// The output is encoded using 2 hexadecimal digits per byte.
    function toHexStringNoPrefix(address value) internal pure returns (string memory str) {
        /// @solidity memory-safe-assembly
        assembly {
            str := mload(0x40)

            // Allocate the memory.
            // We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,
            // 0x02 bytes for the prefix, and 0x28 bytes for the digits.
            // The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x28) is 0x80.
            mstore(0x40, add(str, 0x80))

            // Store "0123456789abcdef" in scratch space.
            mstore(0x0f, 0x30313233343536373839616263646566)

            str := add(str, 2)
            mstore(str, 40)

            let o := add(str, 0x20)
            mstore(add(o, 40), 0)

            value := shl(96, value)

            // We write the string from rightmost digit to leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            for { let i := 0 } 1 {} {
                let p := add(o, add(i, i))
                let temp := byte(i, value)
                mstore8(add(p, 1), mload(and(temp, 15)))
                mstore8(p, mload(shr(4, temp)))
                i := add(i, 1)
                if eq(i, 20) { break }
            }
        }
    }

    /// @dev Returns the hex encoded string from the raw bytes.
    /// The output is encoded using 2 hexadecimal digits per byte.
    function toHexString(bytes memory raw) internal pure returns (string memory str) {
        str = toHexStringNoPrefix(raw);
        /// @solidity memory-safe-assembly
        assembly {
            let strLength := add(mload(str), 2) // Compute the length.
            mstore(str, 0x3078) // Write the "0x" prefix.
            str := sub(str, 2) // Move the pointer.
            mstore(str, strLength) // Write the length.
        }
    }

    /// @dev Returns the hex encoded string from the raw bytes.
    /// The output is encoded using 2 hexadecimal digits per byte.
    function toHexStringNoPrefix(bytes memory raw) internal pure returns (string memory str) {
        /// @solidity memory-safe-assembly
        assembly {
            let length := mload(raw)
            str := add(mload(0x40), 2) // Skip 2 bytes for the optional prefix.
            mstore(str, add(length, length)) // Store the length of the output.

            // Store "0123456789abcdef" in scratch space.
            mstore(0x0f, 0x30313233343536373839616263646566)

            let o := add(str, 0x20)
            let end := add(raw, length)

            for {} iszero(eq(raw, end)) {} {
                raw := add(raw, 1)
                mstore8(add(o, 1), mload(and(mload(raw), 15)))
                mstore8(o, mload(and(shr(4, mload(raw)), 15)))
                o := add(o, 2)
            }
            mstore(o, 0) // Zeroize the slot after the string.
            mstore(0x40, add(o, 0x20)) // Allocate the memory.
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   RUNE STRING OPERATIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the number of UTF characters in the string.
    function runeCount(string memory s) internal pure returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            if mload(s) {
                mstore(0x00, div(not(0), 255))
                mstore(0x20, 0x0202020202020202020202020202020202020202020202020303030304040506)
                let o := add(s, 0x20)
                let end := add(o, mload(s))
                for { result := 1 } 1 { result := add(result, 1) } {
                    o := add(o, byte(0, mload(shr(250, mload(o)))))
                    if iszero(lt(o, end)) { break }
                }
            }
        }
    }

    /// @dev Returns if this string is a 7-bit ASCII string.
    /// (i.e. all characters codes are in [0..127])
    function is7BitASCII(string memory s) internal pure returns (bool result) {
        /// @solidity memory-safe-assembly
        assembly {
            let mask := shl(7, div(not(0), 255))
            result := 1
            let n := mload(s)
            if n {
                let o := add(s, 0x20)
                let end := add(o, n)
                let last := mload(end)
                mstore(end, 0)
                for {} 1 {} {
                    if and(mask, mload(o)) {
                        result := 0
                        break
                    }
                    o := add(o, 0x20)
                    if iszero(lt(o, end)) { break }
                }
                mstore(end, last)
            }
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   BYTE STRING OPERATIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    // For performance and bytecode compactness, byte string operations are restricted
    // to 7-bit ASCII strings. All offsets are byte offsets, not UTF character offsets.
    // Usage of byte string operations on charsets with runes spanning two or more bytes
    // can lead to undefined behavior.

    /// @dev Returns `subject` all occurrences of `search` replaced with `replacement`.
    function replace(string memory subject, string memory search, string memory replacement)
        internal
        pure
        returns (string memory result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let subjectLength := mload(subject)
            let searchLength := mload(search)
            let replacementLength := mload(replacement)

            subject := add(subject, 0x20)
            search := add(search, 0x20)
            replacement := add(replacement, 0x20)
            result := add(mload(0x40), 0x20)

            let subjectEnd := add(subject, subjectLength)
            if iszero(gt(searchLength, subjectLength)) {
                let subjectSearchEnd := add(sub(subjectEnd, searchLength), 1)
                let h := 0
                if iszero(lt(searchLength, 0x20)) { h := keccak256(search, searchLength) }
                let m := shl(3, sub(0x20, and(searchLength, 0x1f)))
                let s := mload(search)
                for {} 1 {} {
                    let t := mload(subject)
                    // Whether the first `searchLength % 32` bytes of
                    // `subject` and `search` matches.
                    if iszero(shr(m, xor(t, s))) {
                        if h {
                            if iszero(eq(keccak256(subject, searchLength), h)) {
                                mstore(result, t)
                                result := add(result, 1)
                                subject := add(subject, 1)
                                if iszero(lt(subject, subjectSearchEnd)) { break }
                                continue
                            }
                        }
                        // Copy the `replacement` one word at a time.
                        for { let o := 0 } 1 {} {
                            mstore(add(result, o), mload(add(replacement, o)))
                            o := add(o, 0x20)
                            if iszero(lt(o, replacementLength)) { break }
                        }
                        result := add(result, replacementLength)
                        subject := add(subject, searchLength)
                        if searchLength {
                            if iszero(lt(subject, subjectSearchEnd)) { break }
                            continue
                        }
                    }
                    mstore(result, t)
                    result := add(result, 1)
                    subject := add(subject, 1)
                    if iszero(lt(subject, subjectSearchEnd)) { break }
                }
            }

            let resultRemainder := result
            result := add(mload(0x40), 0x20)
            let k := add(sub(resultRemainder, result), sub(subjectEnd, subject))
            // Copy the rest of the string one word at a time.
            for {} lt(subject, subjectEnd) {} {
                mstore(resultRemainder, mload(subject))
                resultRemainder := add(resultRemainder, 0x20)
                subject := add(subject, 0x20)
            }
            result := sub(result, 0x20)
            let last := add(add(result, 0x20), k) // Zeroize the slot after the string.
            mstore(last, 0)
            mstore(0x40, add(last, 0x20)) // Allocate the memory.
            mstore(result, k) // Store the length.
        }
    }

    /// @dev Returns the byte index of the first location of `search` in `subject`,
    /// searching from left to right, starting from `from`.
    /// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `search` is not found.
    function indexOf(string memory subject, string memory search, uint256 from)
        internal
        pure
        returns (uint256 result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            for { let subjectLength := mload(subject) } 1 {} {
                if iszero(mload(search)) {
                    if iszero(gt(from, subjectLength)) {
                        result := from
                        break
                    }
                    result := subjectLength
                    break
                }
                let searchLength := mload(search)
                let subjectStart := add(subject, 0x20)

                result := not(0) // Initialize to `NOT_FOUND`.

                subject := add(subjectStart, from)
                let end := add(sub(add(subjectStart, subjectLength), searchLength), 1)

                let m := shl(3, sub(0x20, and(searchLength, 0x1f)))
                let s := mload(add(search, 0x20))

                if iszero(and(lt(subject, end), lt(from, subjectLength))) { break }

                if iszero(lt(searchLength, 0x20)) {
                    for { let h := keccak256(add(search, 0x20), searchLength) } 1 {} {
                        if iszero(shr(m, xor(mload(subject), s))) {
                            if eq(keccak256(subject, searchLength), h) {
                                result := sub(subject, subjectStart)
                                break
                            }
                        }
                        subject := add(subject, 1)
                        if iszero(lt(subject, end)) { break }
                    }
                    break
                }
                for {} 1 {} {
                    if iszero(shr(m, xor(mload(subject), s))) {
                        result := sub(subject, subjectStart)
                        break
                    }
                    subject := add(subject, 1)
                    if iszero(lt(subject, end)) { break }
                }
                break
            }
        }
    }

    /// @dev Returns the byte index of the first location of `search` in `subject`,
    /// searching from left to right.
    /// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `search` is not found.
    function indexOf(string memory subject, string memory search)
        internal
        pure
        returns (uint256 result)
    {
        result = indexOf(subject, search, 0);
    }

    /// @dev Returns the byte index of the first location of `search` in `subject`,
    /// searching from right to left, starting from `from`.
    /// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `search` is not found.
    function lastIndexOf(string memory subject, string memory search, uint256 from)
        internal
        pure
        returns (uint256 result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            for {} 1 {} {
                result := not(0) // Initialize to `NOT_FOUND`.
                let searchLength := mload(search)
                if gt(searchLength, mload(subject)) { break }
                let w := result

                let fromMax := sub(mload(subject), searchLength)
                if iszero(gt(fromMax, from)) { from := fromMax }

                let end := add(add(subject, 0x20), w)
                subject := add(add(subject, 0x20), from)
                if iszero(gt(subject, end)) { break }
                // As this function is not too often used,
                // we shall simply use keccak256 for smaller bytecode size.
                for { let h := keccak256(add(search, 0x20), searchLength) } 1 {} {
                    if eq(keccak256(subject, searchLength), h) {
                        result := sub(subject, add(end, 1))
                        break
                    }
                    subject := add(subject, w) // `sub(subject, 1)`.
                    if iszero(gt(subject, end)) { break }
                }
                break
            }
        }
    }

    /// @dev Returns the byte index of the first location of `search` in `subject`,
    /// searching from right to left.
    /// Returns `NOT_FOUND` (i.e. `type(uint256).max`) if the `search` is not found.
    function lastIndexOf(string memory subject, string memory search)
        internal
        pure
        returns (uint256 result)
    {
        result = lastIndexOf(subject, search, uint256(int256(-1)));
    }

    /// @dev Returns true if `search` is found in `subject`, false otherwise.
    function contains(string memory subject, string memory search) internal pure returns (bool) {
        return indexOf(subject, search) != NOT_FOUND;
    }

    /// @dev Returns whether `subject` starts with `search`.
    function startsWith(string memory subject, string memory search)
        internal
        pure
        returns (bool result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let searchLength := mload(search)
            // Just using keccak256 directly is actually cheaper.
            // forgefmt: disable-next-item
            result := and(
                iszero(gt(searchLength, mload(subject))),
                eq(
                    keccak256(add(subject, 0x20), searchLength),
                    keccak256(add(search, 0x20), searchLength)
                )
            )
        }
    }

    /// @dev Returns whether `subject` ends with `search`.
    function endsWith(string memory subject, string memory search)
        internal
        pure
        returns (bool result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let searchLength := mload(search)
            let subjectLength := mload(subject)
            // Whether `search` is not longer than `subject`.
            let withinRange := iszero(gt(searchLength, subjectLength))
            // Just using keccak256 directly is actually cheaper.
            // forgefmt: disable-next-item
            result := and(
                withinRange,
                eq(
                    keccak256(
                        // `subject + 0x20 + max(subjectLength - searchLength, 0)`.
                        add(add(subject, 0x20), mul(withinRange, sub(subjectLength, searchLength))),
                        searchLength
                    ),
                    keccak256(add(search, 0x20), searchLength)
                )
            )
        }
    }

    /// @dev Returns `subject` repeated `times`.
    function repeat(string memory subject, uint256 times)
        internal
        pure
        returns (string memory result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let subjectLength := mload(subject)
            if iszero(or(iszero(times), iszero(subjectLength))) {
                subject := add(subject, 0x20)
                result := mload(0x40)
                let output := add(result, 0x20)
                for {} 1 {} {
                    // Copy the `subject` one word at a time.
                    for { let o := 0 } 1 {} {
                        mstore(add(output, o), mload(add(subject, o)))
                        o := add(o, 0x20)
                        if iszero(lt(o, subjectLength)) { break }
                    }
                    output := add(output, subjectLength)
                    times := sub(times, 1)
                    if iszero(times) { break }
                }
                mstore(output, 0) // Zeroize the slot after the string.
                let resultLength := sub(output, add(result, 0x20))
                mstore(result, resultLength) // Store the length.
                // Allocate the memory.
                mstore(0x40, add(result, add(resultLength, 0x20)))
            }
        }
    }

    /// @dev Returns a copy of `subject` sliced from `start` to `end` (exclusive).
    /// `start` and `end` are byte offsets.
    function slice(string memory subject, uint256 start, uint256 end)
        internal
        pure
        returns (string memory result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let subjectLength := mload(subject)
            if iszero(gt(subjectLength, end)) { end := subjectLength }
            if iszero(gt(subjectLength, start)) { start := subjectLength }
            if lt(start, end) {
                result := mload(0x40)
                let resultLength := sub(end, start)
                mstore(result, resultLength)
                subject := add(subject, start)
                let w := not(0x1f)
                // Copy the `subject` one word at a time, backwards.
                for { let o := and(add(resultLength, 0x1f), w) } 1 {} {
                    mstore(add(result, o), mload(add(subject, o)))
                    o := add(o, w) // `sub(o, 0x20)`.
                    if iszero(o) { break }
                }
                // Zeroize the slot after the string.
                mstore(add(add(result, 0x20), resultLength), 0)
                // Allocate memory for the length and the bytes,
                // rounded up to a multiple of 32.
                mstore(0x40, add(result, and(add(resultLength, 0x3f), w)))
            }
        }
    }

    /// @dev Returns a copy of `subject` sliced from `start` to the end of the string.
    /// `start` is a byte offset.
    function slice(string memory subject, uint256 start)
        internal
        pure
        returns (string memory result)
    {
        result = slice(subject, start, uint256(int256(-1)));
    }

    /// @dev Returns all the indices of `search` in `subject`.
    /// The indices are byte offsets.
    function indicesOf(string memory subject, string memory search)
        internal
        pure
        returns (uint256[] memory result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let subjectLength := mload(subject)
            let searchLength := mload(search)

            if iszero(gt(searchLength, subjectLength)) {
                subject := add(subject, 0x20)
                search := add(search, 0x20)
                result := add(mload(0x40), 0x20)

                let subjectStart := subject
                let subjectSearchEnd := add(sub(add(subject, subjectLength), searchLength), 1)
                let h := 0
                if iszero(lt(searchLength, 0x20)) { h := keccak256(search, searchLength) }
                let m := shl(3, sub(0x20, and(searchLength, 0x1f)))
                let s := mload(search)
                for {} 1 {} {
                    let t := mload(subject)
                    // Whether the first `searchLength % 32` bytes of
                    // `subject` and `search` matches.
                    if iszero(shr(m, xor(t, s))) {
                        if h {
                            if iszero(eq(keccak256(subject, searchLength), h)) {
                                subject := add(subject, 1)
                                if iszero(lt(subject, subjectSearchEnd)) { break }
                                continue
                            }
                        }
                        // Append to `result`.
                        mstore(result, sub(subject, subjectStart))
                        result := add(result, 0x20)
                        // Advance `subject` by `searchLength`.
                        subject := add(subject, searchLength)
                        if searchLength {
                            if iszero(lt(subject, subjectSearchEnd)) { break }
                            continue
                        }
                    }
                    subject := add(subject, 1)
                    if iszero(lt(subject, subjectSearchEnd)) { break }
                }
                let resultEnd := result
                // Assign `result` to the free memory pointer.
                result := mload(0x40)
                // Store the length of `result`.
                mstore(result, shr(5, sub(resultEnd, add(result, 0x20))))
                // Allocate memory for result.
                // We allocate one more word, so this array can be recycled for {split}.
                mstore(0x40, add(resultEnd, 0x20))
            }
        }
    }

    /// @dev Returns a arrays of strings based on the `delimiter` inside of the `subject` string.
    function split(string memory subject, string memory delimiter)
        internal
        pure
        returns (string[] memory result)
    {
        uint256[] memory indices = indicesOf(subject, delimiter);
        /// @solidity memory-safe-assembly
        assembly {
            let w := not(0x1f)
            let indexPtr := add(indices, 0x20)
            let indicesEnd := add(indexPtr, shl(5, add(mload(indices), 1)))
            mstore(add(indicesEnd, w), mload(subject))
            mstore(indices, add(mload(indices), 1))
            let prevIndex := 0
            for {} 1 {} {
                let index := mload(indexPtr)
                mstore(indexPtr, 0x60)
                if iszero(eq(index, prevIndex)) {
                    let element := mload(0x40)
                    let elementLength := sub(index, prevIndex)
                    mstore(element, elementLength)
                    // Copy the `subject` one word at a time, backwards.
                    for { let o := and(add(elementLength, 0x1f), w) } 1 {} {
                        mstore(add(element, o), mload(add(add(subject, prevIndex), o)))
                        o := add(o, w) // `sub(o, 0x20)`.
                        if iszero(o) { break }
                    }
                    // Zeroize the slot after the string.
                    mstore(add(add(element, 0x20), elementLength), 0)
                    // Allocate memory for the length and the bytes,
                    // rounded up to a multiple of 32.
                    mstore(0x40, add(element, and(add(elementLength, 0x3f), w)))
                    // Store the `element` into the array.
                    mstore(indexPtr, element)
                }
                prevIndex := add(index, mload(delimiter))
                indexPtr := add(indexPtr, 0x20)
                if iszero(lt(indexPtr, indicesEnd)) { break }
            }
            result := indices
            if iszero(mload(delimiter)) {
                result := add(indices, 0x20)
                mstore(result, sub(mload(indices), 2))
            }
        }
    }

    /// @dev Returns a concatenated string of `a` and `b`.
    /// Cheaper than `string.concat()` and does not de-align the free memory pointer.
    function concat(string memory a, string memory b)
        internal
        pure
        returns (string memory result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let w := not(0x1f)
            result := mload(0x40)
            let aLength := mload(a)
            // Copy `a` one word at a time, backwards.
            for { let o := and(add(aLength, 0x20), w) } 1 {} {
                mstore(add(result, o), mload(add(a, o)))
                o := add(o, w) // `sub(o, 0x20)`.
                if iszero(o) { break }
            }
            let bLength := mload(b)
            let output := add(result, aLength)
            // Copy `b` one word at a time, backwards.
            for { let o := and(add(bLength, 0x20), w) } 1 {} {
                mstore(add(output, o), mload(add(b, o)))
                o := add(o, w) // `sub(o, 0x20)`.
                if iszero(o) { break }
            }
            let totalLength := add(aLength, bLength)
            let last := add(add(result, 0x20), totalLength)
            // Zeroize the slot after the string.
            mstore(last, 0)
            // Stores the length.
            mstore(result, totalLength)
            // Allocate memory for the length and the bytes,
            // rounded up to a multiple of 32.
            mstore(0x40, and(add(last, 0x1f), w))
        }
    }

    /// @dev Returns a copy of the string in either lowercase or UPPERCASE.
    /// WARNING! This function is only compatible with 7-bit ASCII strings.
    function toCase(string memory subject, bool toUpper)
        internal
        pure
        returns (string memory result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let length := mload(subject)
            if length {
                result := add(mload(0x40), 0x20)
                subject := add(subject, 1)
                let flags := shl(add(70, shl(5, toUpper)), 0x3ffffff)
                let w := not(0)
                for { let o := length } 1 {} {
                    o := add(o, w)
                    let b := and(0xff, mload(add(subject, o)))
                    mstore8(add(result, o), xor(b, and(shr(b, flags), 0x20)))
                    if iszero(o) { break }
                }
                result := mload(0x40)
                mstore(result, length) // Store the length.
                let last := add(add(result, 0x20), length)
                mstore(last, 0) // Zeroize the slot after the string.
                mstore(0x40, add(last, 0x20)) // Allocate the memory.
            }
        }
    }

    /// @dev Returns a string from a small bytes32 string.
    /// `s` must be null-terminated, or behavior will be undefined.
    function fromSmallString(bytes32 s) internal pure returns (string memory result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := mload(0x40)
            let n := 0
            for {} byte(n, s) { n := add(n, 1) } {} // Scan for '\0'.
            mstore(result, n)
            let o := add(result, 0x20)
            mstore(o, s)
            mstore(add(o, n), 0)
            mstore(0x40, add(result, 0x40))
        }
    }

    /// @dev Returns the small string, with all bytes after the first null byte zeroized.
    function normalizeSmallString(bytes32 s) internal pure returns (bytes32 result) {
        /// @solidity memory-safe-assembly
        assembly {
            for {} byte(result, s) { result := add(result, 1) } {} // Scan for '\0'.
            mstore(0x00, s)
            mstore(result, 0x00)
            result := mload(0x00)
        }
    }

    /// @dev Returns the string as a normalized null-terminated small string.
    function toSmallString(string memory s) internal pure returns (bytes32 result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := mload(s)
            if iszero(lt(result, 33)) {
                mstore(0x00, 0xec92f9a3) // `TooBigForSmallString()`.
                revert(0x1c, 0x04)
            }
            result := shl(shl(3, sub(32, result)), mload(add(s, result)))
        }
    }

    /// @dev Returns a lowercased copy of the string.
    /// WARNING! This function is only compatible with 7-bit ASCII strings.
    function lower(string memory subject) internal pure returns (string memory result) {
        result = toCase(subject, false);
    }

    /// @dev Returns an UPPERCASED copy of the string.
    /// WARNING! This function is only compatible with 7-bit ASCII strings.
    function upper(string memory subject) internal pure returns (string memory result) {
        result = toCase(subject, true);
    }

    /// @dev Escapes the string to be used within HTML tags.
    function escapeHTML(string memory s) internal pure returns (string memory result) {
        /// @solidity memory-safe-assembly
        assembly {
            let end := add(s, mload(s))
            result := add(mload(0x40), 0x20)
            // Store the bytes of the packed offsets and strides into the scratch space.
            // `packed = (stride << 5) | offset`. Max offset is 20. Max stride is 6.
            mstore(0x1f, 0x900094)
            mstore(0x08, 0xc0000000a6ab)
            // Store "&quot;&amp;&#39;&lt;&gt;" into the scratch space.
            mstore(0x00, shl(64, 0x2671756f743b26616d703b262333393b266c743b2667743b))
            for {} iszero(eq(s, end)) {} {
                s := add(s, 1)
                let c := and(mload(s), 0xff)
                // Not in `["\"","'","&","<",">"]`.
                if iszero(and(shl(c, 1), 0x500000c400000000)) {
                    mstore8(result, c)
                    result := add(result, 1)
                    continue
                }
                let t := shr(248, mload(c))
                mstore(result, mload(and(t, 0x1f)))
                result := add(result, shr(5, t))
            }
            let last := result
            mstore(last, 0) // Zeroize the slot after the string.
            result := mload(0x40)
            mstore(result, sub(last, add(result, 0x20))) // Store the length.
            mstore(0x40, add(last, 0x20)) // Allocate the memory.
        }
    }

    /// @dev Escapes the string to be used within double-quotes in a JSON.
    /// If `addDoubleQuotes` is true, the result will be enclosed in double-quotes.
    function escapeJSON(string memory s, bool addDoubleQuotes)
        internal
        pure
        returns (string memory result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let end := add(s, mload(s))
            result := add(mload(0x40), 0x20)
            if addDoubleQuotes {
                mstore8(result, 34)
                result := add(1, result)
            }
            // Store "\\u0000" in scratch space.
            // Store "0123456789abcdef" in scratch space.
            // Also, store `{0x08:"b", 0x09:"t", 0x0a:"n", 0x0c:"f", 0x0d:"r"}`.
            // into the scratch space.
            mstore(0x15, 0x5c75303030303031323334353637383961626364656662746e006672)
            // Bitmask for detecting `["\"","\\"]`.
            let e := or(shl(0x22, 1), shl(0x5c, 1))
            for {} iszero(eq(s, end)) {} {
                s := add(s, 1)
                let c := and(mload(s), 0xff)
                if iszero(lt(c, 0x20)) {
                    if iszero(and(shl(c, 1), e)) {
                        // Not in `["\"","\\"]`.
                        mstore8(result, c)
                        result := add(result, 1)
                        continue
                    }
                    mstore8(result, 0x5c) // "\\".
                    mstore8(add(result, 1), c)
                    result := add(result, 2)
                    continue
                }
                if iszero(and(shl(c, 1), 0x3700)) {
                    // Not in `["\b","\t","\n","\f","\d"]`.
                    mstore8(0x1d, mload(shr(4, c))) // Hex value.
                    mstore8(0x1e, mload(and(c, 15))) // Hex value.
                    mstore(result, mload(0x19)) // "\\u00XX".
                    result := add(result, 6)
                    continue
                }
                mstore8(result, 0x5c) // "\\".
                mstore8(add(result, 1), mload(add(c, 8)))
                result := add(result, 2)
            }
            if addDoubleQuotes {
                mstore8(result, 34)
                result := add(1, result)
            }
            let last := result
            mstore(last, 0) // Zeroize the slot after the string.
            result := mload(0x40)
            mstore(result, sub(last, add(result, 0x20))) // Store the length.
            mstore(0x40, add(last, 0x20)) // Allocate the memory.
        }
    }

    /// @dev Escapes the string to be used within double-quotes in a JSON.
    function escapeJSON(string memory s) internal pure returns (string memory result) {
        result = escapeJSON(s, false);
    }

    /// @dev Returns whether `a` equals `b`.
    function eq(string memory a, string memory b) internal pure returns (bool result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := eq(keccak256(add(a, 0x20), mload(a)), keccak256(add(b, 0x20), mload(b)))
        }
    }

    /// @dev Returns whether `a` equals `b`, where `b` is a null-terminated small string.
    function eqs(string memory a, bytes32 b) internal pure returns (bool result) {
        /// @solidity memory-safe-assembly
        assembly {
            // These should be evaluated on compile time, as far as possible.
            let m := not(shl(7, div(not(iszero(b)), 255))) // `0x7f7f ...`.
            let x := not(or(m, or(b, add(m, and(b, m)))))
            let r := shl(7, iszero(iszero(shr(128, x))))
            r := or(r, shl(6, iszero(iszero(shr(64, shr(r, x))))))
            r := or(r, shl(5, lt(0xffffffff, shr(r, x))))
            r := or(r, shl(4, lt(0xffff, shr(r, x))))
            r := or(r, shl(3, lt(0xff, shr(r, x))))
            // forgefmt: disable-next-item
            result := gt(eq(mload(a), add(iszero(x), xor(31, shr(3, r)))),
                xor(shr(add(8, r), b), shr(add(8, r), mload(add(a, 0x20)))))
        }
    }

    /// @dev Packs a single string with its length into a single word.
    /// Returns `bytes32(0)` if the length is zero or greater than 31.
    function packOne(string memory a) internal pure returns (bytes32 result) {
        /// @solidity memory-safe-assembly
        assembly {
            // We don't need to zero right pad the string,
            // since this is our own custom non-standard packing scheme.
            result :=
                mul(
                    // Load the length and the bytes.
                    mload(add(a, 0x1f)),
                    // `length != 0 && length < 32`. Abuses underflow.
                    // Assumes that the length is valid and within the block gas limit.
                    lt(sub(mload(a), 1), 0x1f)
                )
        }
    }

    /// @dev Unpacks a string packed using {packOne}.
    /// Returns the empty string if `packed` is `bytes32(0)`.
    /// If `packed` is not an output of {packOne}, the output behavior is undefined.
    function unpackOne(bytes32 packed) internal pure returns (string memory result) {
        /// @solidity memory-safe-assembly
        assembly {
            // Grab the free memory pointer.
            result := mload(0x40)
            // Allocate 2 words (1 for the length, 1 for the bytes).
            mstore(0x40, add(result, 0x40))
            // Zeroize the length slot.
            mstore(result, 0)
            // Store the length and bytes.
            mstore(add(result, 0x1f), packed)
            // Right pad with zeroes.
            mstore(add(add(result, 0x20), mload(result)), 0)
        }
    }

    /// @dev Packs two strings with their lengths into a single word.
    /// Returns `bytes32(0)` if combined length is zero or greater than 30.
    function packTwo(string memory a, string memory b) internal pure returns (bytes32 result) {
        /// @solidity memory-safe-assembly
        assembly {
            let aLength := mload(a)
            // We don't need to zero right pad the strings,
            // since this is our own custom non-standard packing scheme.
            result :=
                mul(
                    // Load the length and the bytes of `a` and `b`.
                    or(
                        shl(shl(3, sub(0x1f, aLength)), mload(add(a, aLength))),
                        mload(sub(add(b, 0x1e), aLength))
                    ),
                    // `totalLength != 0 && totalLength < 31`. Abuses underflow.
                    // Assumes that the lengths are valid and within the block gas limit.
                    lt(sub(add(aLength, mload(b)), 1), 0x1e)
                )
        }
    }

    /// @dev Unpacks strings packed using {packTwo}.
    /// Returns the empty strings if `packed` is `bytes32(0)`.
    /// If `packed` is not an output of {packTwo}, the output behavior is undefined.
    function unpackTwo(bytes32 packed)
        internal
        pure
        returns (string memory resultA, string memory resultB)
    {
        /// @solidity memory-safe-assembly
        assembly {
            // Grab the free memory pointer.
            resultA := mload(0x40)
            resultB := add(resultA, 0x40)
            // Allocate 2 words for each string (1 for the length, 1 for the byte). Total 4 words.
            mstore(0x40, add(resultB, 0x40))
            // Zeroize the length slots.
            mstore(resultA, 0)
            mstore(resultB, 0)
            // Store the lengths and bytes.
            mstore(add(resultA, 0x1f), packed)
            mstore(add(resultB, 0x1f), mload(add(add(resultA, 0x20), mload(resultA))))
            // Right pad with zeroes.
            mstore(add(add(resultA, 0x20), mload(resultA)), 0)
            mstore(add(add(resultB, 0x20), mload(resultB)), 0)
        }
    }

    /// @dev Directly returns `a` without copying.
    function directReturn(string memory a) internal pure {
        assembly {
            // Assumes that the string does not start from the scratch space.
            let retStart := sub(a, 0x20)
            let retSize := add(mload(a), 0x40)
            // Right pad with zeroes. Just in case the string is produced
            // by a method that doesn't zero right pad.
            mstore(add(retStart, retSize), 0)
            // Store the return offset.
            mstore(retStart, 0x20)
            // End the transaction, returning the string.
            return(retStart, retSize)
        }
    }
}

File 5 of 7 : MerkleProofLib.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Gas optimized verification of proof of inclusion for a leaf in a Merkle tree.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/MerkleProofLib.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/MerkleProofLib.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/MerkleProof.sol)
library MerkleProofLib {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*            MERKLE PROOF VERIFICATION OPERATIONS            */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns whether `leaf` exists in the Merkle tree with `root`, given `proof`.
    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf)
        internal
        pure
        returns (bool isValid)
    {
        /// @solidity memory-safe-assembly
        assembly {
            if mload(proof) {
                // Initialize `offset` to the offset of `proof` elements in memory.
                let offset := add(proof, 0x20)
                // Left shift by 5 is equivalent to multiplying by 0x20.
                let end := add(offset, shl(5, mload(proof)))
                // Iterate over proof elements to compute root hash.
                for {} 1 {} {
                    // Slot of `leaf` in scratch space.
                    // If the condition is true: 0x20, otherwise: 0x00.
                    let scratch := shl(5, gt(leaf, mload(offset)))
                    // Store elements to hash contiguously in scratch space.
                    // Scratch space is 64 bytes (0x00 - 0x3f) and both elements are 32 bytes.
                    mstore(scratch, leaf)
                    mstore(xor(scratch, 0x20), mload(offset))
                    // Reuse `leaf` to store the hash to reduce stack operations.
                    leaf := keccak256(0x00, 0x40)
                    offset := add(offset, 0x20)
                    if iszero(lt(offset, end)) { break }
                }
            }
            isValid := eq(leaf, root)
        }
    }

    /// @dev Returns whether `leaf` exists in the Merkle tree with `root`, given `proof`.
    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf)
        internal
        pure
        returns (bool isValid)
    {
        /// @solidity memory-safe-assembly
        assembly {
            if proof.length {
                // Left shift by 5 is equivalent to multiplying by 0x20.
                let end := add(proof.offset, shl(5, proof.length))
                // Initialize `offset` to the offset of `proof` in the calldata.
                let offset := proof.offset
                // Iterate over proof elements to compute root hash.
                for {} 1 {} {
                    // Slot of `leaf` in scratch space.
                    // If the condition is true: 0x20, otherwise: 0x00.
                    let scratch := shl(5, gt(leaf, calldataload(offset)))
                    // Store elements to hash contiguously in scratch space.
                    // Scratch space is 64 bytes (0x00 - 0x3f) and both elements are 32 bytes.
                    mstore(scratch, leaf)
                    mstore(xor(scratch, 0x20), calldataload(offset))
                    // Reuse `leaf` to store the hash to reduce stack operations.
                    leaf := keccak256(0x00, 0x40)
                    offset := add(offset, 0x20)
                    if iszero(lt(offset, end)) { break }
                }
            }
            isValid := eq(leaf, root)
        }
    }

    /// @dev Returns whether all `leaves` exist in the Merkle tree with `root`,
    /// given `proof` and `flags`.
    ///
    /// Note:
    /// - Breaking the invariant `flags.length == (leaves.length - 1) + proof.length`
    ///   will always return false.
    /// - The sum of the lengths of `proof` and `leaves` must never overflow.
    /// - Any non-zero word in the `flags` array is treated as true.
    /// - The memory offset of `proof` must be non-zero
    ///   (i.e. `proof` is not pointing to the scratch space).
    function verifyMultiProof(
        bytes32[] memory proof,
        bytes32 root,
        bytes32[] memory leaves,
        bool[] memory flags
    ) internal pure returns (bool isValid) {
        // Rebuilds the root by consuming and producing values on a queue.
        // The queue starts with the `leaves` array, and goes into a `hashes` array.
        // After the process, the last element on the queue is verified
        // to be equal to the `root`.
        //
        // The `flags` array denotes whether the sibling
        // should be popped from the queue (`flag == true`), or
        // should be popped from the `proof` (`flag == false`).
        /// @solidity memory-safe-assembly
        assembly {
            // Cache the lengths of the arrays.
            let leavesLength := mload(leaves)
            let proofLength := mload(proof)
            let flagsLength := mload(flags)

            // Advance the pointers of the arrays to point to the data.
            leaves := add(0x20, leaves)
            proof := add(0x20, proof)
            flags := add(0x20, flags)

            // If the number of flags is correct.
            for {} eq(add(leavesLength, proofLength), add(flagsLength, 1)) {} {
                // For the case where `proof.length + leaves.length == 1`.
                if iszero(flagsLength) {
                    // `isValid = (proof.length == 1 ? proof[0] : leaves[0]) == root`.
                    isValid := eq(mload(xor(leaves, mul(xor(proof, leaves), proofLength))), root)
                    break
                }

                // The required final proof offset if `flagsLength` is not zero, otherwise zero.
                let proofEnd := add(proof, shl(5, proofLength))
                // We can use the free memory space for the queue.
                // We don't need to allocate, since the queue is temporary.
                let hashesFront := mload(0x40)
                // Copy the leaves into the hashes.
                // Sometimes, a little memory expansion costs less than branching.
                // Should cost less, even with a high free memory offset of 0x7d00.
                leavesLength := shl(5, leavesLength)
                for { let i := 0 } iszero(eq(i, leavesLength)) { i := add(i, 0x20) } {
                    mstore(add(hashesFront, i), mload(add(leaves, i)))
                }
                // Compute the back of the hashes.
                let hashesBack := add(hashesFront, leavesLength)
                // This is the end of the memory for the queue.
                // We recycle `flagsLength` to save on stack variables (sometimes save gas).
                flagsLength := add(hashesBack, shl(5, flagsLength))

                for {} 1 {} {
                    // Pop from `hashes`.
                    let a := mload(hashesFront)
                    // Pop from `hashes`.
                    let b := mload(add(hashesFront, 0x20))
                    hashesFront := add(hashesFront, 0x40)

                    // If the flag is false, load the next proof,
                    // else, pops from the queue.
                    if iszero(mload(flags)) {
                        // Loads the next proof.
                        b := mload(proof)
                        proof := add(proof, 0x20)
                        // Unpop from `hashes`.
                        hashesFront := sub(hashesFront, 0x20)
                    }

                    // Advance to the next flag.
                    flags := add(flags, 0x20)

                    // Slot of `a` in scratch space.
                    // If the condition is true: 0x20, otherwise: 0x00.
                    let scratch := shl(5, gt(a, b))
                    // Hash the scratch space and push the result onto the queue.
                    mstore(scratch, a)
                    mstore(xor(scratch, 0x20), b)
                    mstore(hashesBack, keccak256(0x00, 0x40))
                    hashesBack := add(hashesBack, 0x20)
                    if iszero(lt(hashesBack, flagsLength)) { break }
                }
                isValid :=
                    and(
                        // Checks if the last value in the queue is same as the root.
                        eq(mload(sub(hashesBack, 0x20)), root),
                        // And whether all the proofs are used, if required.
                        eq(proofEnd, proof)
                    )
                break
            }
        }
    }

    /// @dev Returns whether all `leaves` exist in the Merkle tree with `root`,
    /// given `proof` and `flags`.
    ///
    /// Note:
    /// - Breaking the invariant `flags.length == (leaves.length - 1) + proof.length`
    ///   will always return false.
    /// - Any non-zero word in the `flags` array is treated as true.
    /// - The calldata offset of `proof` must be non-zero
    ///   (i.e. `proof` is from a regular Solidity function with a 4-byte selector).
    function verifyMultiProofCalldata(
        bytes32[] calldata proof,
        bytes32 root,
        bytes32[] calldata leaves,
        bool[] calldata flags
    ) internal pure returns (bool isValid) {
        // Rebuilds the root by consuming and producing values on a queue.
        // The queue starts with the `leaves` array, and goes into a `hashes` array.
        // After the process, the last element on the queue is verified
        // to be equal to the `root`.
        //
        // The `flags` array denotes whether the sibling
        // should be popped from the queue (`flag == true`), or
        // should be popped from the `proof` (`flag == false`).
        /// @solidity memory-safe-assembly
        assembly {
            // If the number of flags is correct.
            for {} eq(add(leaves.length, proof.length), add(flags.length, 1)) {} {
                // For the case where `proof.length + leaves.length == 1`.
                if iszero(flags.length) {
                    // `isValid = (proof.length == 1 ? proof[0] : leaves[0]) == root`.
                    // forgefmt: disable-next-item
                    isValid := eq(
                        calldataload(
                            xor(leaves.offset, mul(xor(proof.offset, leaves.offset), proof.length))
                        ),
                        root
                    )
                    break
                }

                // The required final proof offset if `flagsLength` is not zero, otherwise zero.
                let proofEnd := add(proof.offset, shl(5, proof.length))
                // We can use the free memory space for the queue.
                // We don't need to allocate, since the queue is temporary.
                let hashesFront := mload(0x40)
                // Copy the leaves into the hashes.
                // Sometimes, a little memory expansion costs less than branching.
                // Should cost less, even with a high free memory offset of 0x7d00.
                calldatacopy(hashesFront, leaves.offset, shl(5, leaves.length))
                // Compute the back of the hashes.
                let hashesBack := add(hashesFront, shl(5, leaves.length))
                // This is the end of the memory for the queue.
                // We recycle `flagsLength` to save on stack variables (sometimes save gas).
                flags.length := add(hashesBack, shl(5, flags.length))

                // We don't need to make a copy of `proof.offset` or `flags.offset`,
                // as they are pass-by-value (this trick may not always save gas).

                for {} 1 {} {
                    // Pop from `hashes`.
                    let a := mload(hashesFront)
                    // Pop from `hashes`.
                    let b := mload(add(hashesFront, 0x20))
                    hashesFront := add(hashesFront, 0x40)

                    // If the flag is false, load the next proof,
                    // else, pops from the queue.
                    if iszero(calldataload(flags.offset)) {
                        // Loads the next proof.
                        b := calldataload(proof.offset)
                        proof.offset := add(proof.offset, 0x20)
                        // Unpop from `hashes`.
                        hashesFront := sub(hashesFront, 0x20)
                    }

                    // Advance to the next flag offset.
                    flags.offset := add(flags.offset, 0x20)

                    // Slot of `a` in scratch space.
                    // If the condition is true: 0x20, otherwise: 0x00.
                    let scratch := shl(5, gt(a, b))
                    // Hash the scratch space and push the result onto the queue.
                    mstore(scratch, a)
                    mstore(xor(scratch, 0x20), b)
                    mstore(hashesBack, keccak256(0x00, 0x40))
                    hashesBack := add(hashesBack, 0x20)
                    if iszero(lt(hashesBack, flags.length)) { break }
                }
                isValid :=
                    and(
                        // Checks if the last value in the queue is same as the root.
                        eq(mload(sub(hashesBack, 0x20)), root),
                        // And whether all the proofs are used, if required.
                        eq(proofEnd, proof.offset)
                    )
                break
            }
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                   EMPTY CALLDATA HELPERS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns an empty calldata bytes32 array.
    function emptyProof() internal pure returns (bytes32[] calldata proof) {
        /// @solidity memory-safe-assembly
        assembly {
            proof.length := 0
        }
    }

    /// @dev Returns an empty calldata bytes32 array.
    function emptyLeaves() internal pure returns (bytes32[] calldata leaves) {
        /// @solidity memory-safe-assembly
        assembly {
            leaves.length := 0
        }
    }

    /// @dev Returns an empty calldata bool array.
    function emptyFlags() internal pure returns (bool[] calldata flags) {
        /// @solidity memory-safe-assembly
        assembly {
            flags.length := 0
        }
    }
}

File 6 of 7 : SafeTransferLib.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeTransferLib.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
///
/// @dev Note:
/// - For ETH transfers, please use `forceSafeTransferETH` for DoS protection.
/// - For ERC20s, this implementation won't check that a token has code,
///   responsibility is delegated to the caller.
library SafeTransferLib {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The ETH transfer has failed.
    error ETHTransferFailed();

    /// @dev The ERC20 `transferFrom` has failed.
    error TransferFromFailed();

    /// @dev The ERC20 `transfer` has failed.
    error TransferFailed();

    /// @dev The ERC20 `approve` has failed.
    error ApproveFailed();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         CONSTANTS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Suggested gas stipend for contract receiving ETH that disallows any storage writes.
    uint256 internal constant GAS_STIPEND_NO_STORAGE_WRITES = 2300;

    /// @dev Suggested gas stipend for contract receiving ETH to perform a few
    /// storage reads and writes, but low enough to prevent griefing.
    uint256 internal constant GAS_STIPEND_NO_GRIEF = 100000;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       ETH OPERATIONS                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    // If the ETH transfer MUST succeed with a reasonable gas budget, use the force variants.
    //
    // The regular variants:
    // - Forwards all remaining gas to the target.
    // - Reverts if the target reverts.
    // - Reverts if the current contract has insufficient balance.
    //
    // The force variants:
    // - Forwards with an optional gas stipend
    //   (defaults to `GAS_STIPEND_NO_GRIEF`, which is sufficient for most cases).
    // - If the target reverts, or if the gas stipend is exhausted,
    //   creates a temporary contract to force send the ETH via `SELFDESTRUCT`.
    //   Future compatible with `SENDALL`: https://eips.ethereum.org/EIPS/eip-4758.
    // - Reverts if the current contract has insufficient balance.
    //
    // The try variants:
    // - Forwards with a mandatory gas stipend.
    // - Instead of reverting, returns whether the transfer succeeded.

    /// @dev Sends `amount` (in wei) ETH to `to`.
    function safeTransferETH(address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(call(gas(), to, amount, codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Sends all the ETH in the current contract to `to`.
    function safeTransferAllETH(address to) internal {
        /// @solidity memory-safe-assembly
        assembly {
            // Transfer all the ETH and check if it succeeded or not.
            if iszero(call(gas(), to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Force sends `amount` (in wei) ETH to `to`, with a `gasStipend`.
    function forceSafeTransferETH(address to, uint256 amount, uint256 gasStipend) internal {
        /// @solidity memory-safe-assembly
        assembly {
            if lt(selfbalance(), amount) {
                mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
                revert(0x1c, 0x04)
            }
            if iszero(call(gasStipend, to, amount, codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                if iszero(create(amount, 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
            }
        }
    }

    /// @dev Force sends all the ETH in the current contract to `to`, with a `gasStipend`.
    function forceSafeTransferAllETH(address to, uint256 gasStipend) internal {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(call(gasStipend, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                if iszero(create(selfbalance(), 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
            }
        }
    }

    /// @dev Force sends `amount` (in wei) ETH to `to`, with `GAS_STIPEND_NO_GRIEF`.
    function forceSafeTransferETH(address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            if lt(selfbalance(), amount) {
                mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
                revert(0x1c, 0x04)
            }
            if iszero(call(GAS_STIPEND_NO_GRIEF, to, amount, codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                if iszero(create(amount, 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
            }
        }
    }

    /// @dev Force sends all the ETH in the current contract to `to`, with `GAS_STIPEND_NO_GRIEF`.
    function forceSafeTransferAllETH(address to) internal {
        /// @solidity memory-safe-assembly
        assembly {
            // forgefmt: disable-next-item
            if iszero(call(GAS_STIPEND_NO_GRIEF, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                if iszero(create(selfbalance(), 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
            }
        }
    }

    /// @dev Sends `amount` (in wei) ETH to `to`, with a `gasStipend`.
    function trySafeTransferETH(address to, uint256 amount, uint256 gasStipend)
        internal
        returns (bool success)
    {
        /// @solidity memory-safe-assembly
        assembly {
            success := call(gasStipend, to, amount, codesize(), 0x00, codesize(), 0x00)
        }
    }

    /// @dev Sends all the ETH in the current contract to `to`, with a `gasStipend`.
    function trySafeTransferAllETH(address to, uint256 gasStipend)
        internal
        returns (bool success)
    {
        /// @solidity memory-safe-assembly
        assembly {
            success := call(gasStipend, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                      ERC20 OPERATIONS                      */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Sends `amount` of ERC20 `token` from `from` to `to`.
    /// Reverts upon failure.
    ///
    /// The `from` account must have at least `amount` approved for
    /// the current contract to manage.
    function safeTransferFrom(address token, address from, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.
            mstore(0x60, amount) // Store the `amount` argument.
            mstore(0x40, to) // Store the `to` argument.
            mstore(0x2c, shl(96, from)) // Store the `from` argument.
            mstore(0x0c, 0x23b872dd000000000000000000000000) // `transferFrom(address,address,uint256)`.
            // Perform the transfer, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x60, 0) // Restore the zero slot to zero.
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /// @dev Sends all of ERC20 `token` from `from` to `to`.
    /// Reverts upon failure.
    ///
    /// The `from` account must have their entire balance approved for
    /// the current contract to manage.
    function safeTransferAllFrom(address token, address from, address to)
        internal
        returns (uint256 amount)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.
            mstore(0x40, to) // Store the `to` argument.
            mstore(0x2c, shl(96, from)) // Store the `from` argument.
            mstore(0x0c, 0x70a08231000000000000000000000000) // `balanceOf(address)`.
            // Read the balance, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                    staticcall(gas(), token, 0x1c, 0x24, 0x60, 0x20)
                )
            ) {
                mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x00, 0x23b872dd) // `transferFrom(address,address,uint256)`.
            amount := mload(0x60) // The `amount` is already at 0x60. We'll need to return it.
            // Perform the transfer, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x60, 0) // Restore the zero slot to zero.
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /// @dev Sends `amount` of ERC20 `token` from the current contract to `to`.
    /// Reverts upon failure.
    function safeTransfer(address token, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, to) // Store the `to` argument.
            mstore(0x34, amount) // Store the `amount` argument.
            mstore(0x00, 0xa9059cbb000000000000000000000000) // `transfer(address,uint256)`.
            // Perform the transfer, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
        }
    }

    /// @dev Sends all of ERC20 `token` from the current contract to `to`.
    /// Reverts upon failure.
    function safeTransferAll(address token, address to) internal returns (uint256 amount) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, 0x70a08231) // Store the function selector of `balanceOf(address)`.
            mstore(0x20, address()) // Store the address of the current contract.
            // Read the balance, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                    staticcall(gas(), token, 0x1c, 0x24, 0x34, 0x20)
                )
            ) {
                mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x14, to) // Store the `to` argument.
            amount := mload(0x34) // The `amount` is already at 0x34. We'll need to return it.
            mstore(0x00, 0xa9059cbb000000000000000000000000) // `transfer(address,uint256)`.
            // Perform the transfer, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
        }
    }

    /// @dev Sets `amount` of ERC20 `token` for `to` to manage on behalf of the current contract.
    /// Reverts upon failure.
    function safeApprove(address token, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, to) // Store the `to` argument.
            mstore(0x34, amount) // Store the `amount` argument.
            mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
            // Perform the approval, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x3e3f8f73) // `ApproveFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
        }
    }

    /// @dev Sets `amount` of ERC20 `token` for `to` to manage on behalf of the current contract.
    /// If the initial attempt to approve fails, attempts to reset the approved amount to zero,
    /// then retries the approval again (some tokens, e.g. USDT, requires this).
    /// Reverts upon failure.
    function safeApproveWithRetry(address token, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, to) // Store the `to` argument.
            mstore(0x34, amount) // Store the `amount` argument.
            mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
            // Perform the approval, retrying upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                mstore(0x34, 0) // Store 0 for the `amount`.
                mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
                pop(call(gas(), token, 0, 0x10, 0x44, codesize(), 0x00)) // Reset the approval.
                mstore(0x34, amount) // Store back the original `amount`.
                // Retry the approval, reverting upon failure.
                if iszero(
                    and(
                        or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                        call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                    )
                ) {
                    mstore(0x00, 0x3e3f8f73) // `ApproveFailed()`.
                    revert(0x1c, 0x04)
                }
            }
            mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
        }
    }

    /// @dev Returns the amount of ERC20 `token` owned by `account`.
    /// Returns zero if the `token` does not exist.
    function balanceOf(address token, address account) internal view returns (uint256 amount) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, account) // Store the `account` argument.
            mstore(0x00, 0x70a08231000000000000000000000000) // `balanceOf(address)`.
            amount :=
                mul(
                    mload(0x20),
                    and( // The arguments of `and` are evaluated from right to left.
                        gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                        staticcall(gas(), token, 0x10, 0x24, 0x20, 0x20)
                    )
                )
        }
    }
}

File 7 of 7 : DN404.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @title DN404
/// @notice DN404 is a hybrid ERC20 and ERC721 implementation that mints
/// and burns NFTs based on an account's ERC20 token balance.
///
/// @author vectorized.eth (@optimizoor)
/// @author Quit (@0xQuit)
/// @author Michael Amadi (@AmadiMichaels)
/// @author cygaar (@0xCygaar)
/// @author Thomas (@0xjustadev)
/// @author Harrison (@PopPunkOnChain)
///
/// @dev Note:
/// - The ERC721 data is stored in this base DN404 contract, however a
///   DN404Mirror contract ***MUST*** be deployed and linked during
///   initialization.
abstract contract DN404 {
    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                           EVENTS                           */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Emitted when `amount` tokens is transferred from `from` to `to`.
    event Transfer(address indexed from, address indexed to, uint256 amount);

    /// @dev Emitted when `amount` tokens is approved by `owner` to be used by `spender`.
    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /// @dev Emitted when `target` sets their skipNFT flag to `status`.
    event SkipNFTSet(address indexed target, bool status);

    /// @dev `keccak256(bytes("Transfer(address,address,uint256)"))`.
    uint256 private constant _TRANSFER_EVENT_SIGNATURE =
        0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;

    /// @dev `keccak256(bytes("Approval(address,address,uint256)"))`.
    uint256 private constant _APPROVAL_EVENT_SIGNATURE =
        0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925;

    /// @dev `keccak256(bytes("SkipNFTSet(address,bool)"))`.
    uint256 private constant _SKIP_NFT_SET_EVENT_SIGNATURE =
        0xb5a1de456fff688115a4f75380060c23c8532d14ff85f687cc871456d6420393;

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                        CUSTOM ERRORS                       */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Thrown when attempting to double-initialize the contract.
    error DNAlreadyInitialized();

    /// @dev Thrown when attempting to transfer or burn more tokens than sender's balance.
    error InsufficientBalance();

    /// @dev Thrown when a spender attempts to transfer tokens with an insufficient allowance.
    error InsufficientAllowance();

    /// @dev Thrown when minting an amount of tokens that would overflow the max tokens.
    error TotalSupplyOverflow();

    /// @dev The unit cannot be zero.
    error UnitIsZero();

    /// @dev Thrown when the caller for a fallback NFT function is not the mirror contract.
    error SenderNotMirror();

    /// @dev Thrown when attempting to transfer tokens to the zero address.
    error TransferToZeroAddress();

    /// @dev Thrown when the mirror address provided for initialization is the zero address.
    error MirrorAddressIsZero();

    /// @dev Thrown when the link call to the mirror contract reverts.
    error LinkMirrorContractFailed();

    /// @dev Thrown when setting an NFT token approval
    /// and the caller is not the owner or an approved operator.
    error ApprovalCallerNotOwnerNorApproved();

    /// @dev Thrown when transferring an NFT
    /// and the caller is not the owner or an approved operator.
    error TransferCallerNotOwnerNorApproved();

    /// @dev Thrown when transferring an NFT and the from address is not the current owner.
    error TransferFromIncorrectOwner();

    /// @dev Thrown when checking the owner or approved address for a non-existent NFT.
    error TokenDoesNotExist();

    /// @dev The function selector is not recognized.
    error FnSelectorNotRecognized();

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                         CONSTANTS                          */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev The flag to denote that the address data is initialized.
    uint8 internal constant _ADDRESS_DATA_INITIALIZED_FLAG = 1 << 0;

    /// @dev The flag to denote that the address should skip NFTs.
    uint8 internal constant _ADDRESS_DATA_SKIP_NFT_FLAG = 1 << 1;

    /// @dev The flag to denote that the address has overridden the default Permit2 allowance.
    uint8 internal constant _ADDRESS_DATA_OVERRIDE_PERMIT2_FLAG = 1 << 2;

    /// @dev The canonical Permit2 address.
    /// For signature-based allowance granting for single transaction ERC20 `transferFrom`.
    /// To enable, override `_givePermit2DefaultInfiniteAllowance()`.
    /// [Github](https://github.com/Uniswap/permit2)
    /// [Etherscan](https://etherscan.io/address/0x000000000022D473030F116dDEE9F6B43aC78BA3)
    address internal constant _PERMIT2 = 0x000000000022D473030F116dDEE9F6B43aC78BA3;

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                          STORAGE                           */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Struct containing an address's token data and settings.
    struct AddressData {
        // Auxiliary data.
        uint88 aux;
        // Flags for `initialized` and `skipNFT`.
        uint8 flags;
        // The alias for the address. Zero means absence of an alias.
        uint32 addressAlias;
        // The number of NFT tokens.
        uint32 ownedLength;
        // The token balance in wei.
        uint96 balance;
    }

    /// @dev A uint32 map in storage.
    struct Uint32Map {
        uint256 spacer;
    }

    /// @dev A bitmap in storage.
    struct Bitmap {
        uint256 spacer;
    }

    /// @dev A struct to wrap a uint256 in storage.
    struct Uint256Ref {
        uint256 value;
    }

    /// @dev A mapping of an address pair to a Uint256Ref.
    struct AddressPairToUint256RefMap {
        uint256 spacer;
    }

    /// @dev Struct containing the base token contract storage.
    struct DN404Storage {
        // Current number of address aliases assigned.
        uint32 numAliases;
        // Next NFT ID to assign for a mint.
        uint32 nextTokenId;
        // The head of the burned pool.
        uint32 burnedPoolHead;
        // The tail of the burned pool.
        uint32 burnedPoolTail;
        // Total number of NFTs in existence.
        uint32 totalNFTSupply;
        // Total supply of tokens.
        uint96 totalSupply;
        // Address of the NFT mirror contract.
        address mirrorERC721;
        // Mapping of a user alias number to their address.
        mapping(uint32 => address) aliasToAddress;
        // Mapping of user operator approvals for NFTs.
        AddressPairToUint256RefMap operatorApprovals;
        // Mapping of NFT approvals to approved operators.
        mapping(uint256 => address) nftApprovals;
        // Bitmap of whether an non-zero NFT approval may exist.
        Bitmap mayHaveNFTApproval;
        // Bitmap of whether a NFT ID exists. Ignored if `_useExistsLookup()` returns false.
        Bitmap exists;
        // Mapping of user allowances for ERC20 spenders.
        AddressPairToUint256RefMap allowance;
        // Mapping of NFT IDs owned by an address.
        mapping(address => Uint32Map) owned;
        // The pool of burned NFT IDs.
        Uint32Map burnedPool;
        // Even indices: owner aliases. Odd indices: owned indices.
        Uint32Map oo;
        // Mapping of user account AddressData.
        mapping(address => AddressData) addressData;
    }

    /// @dev Returns a storage pointer for DN404Storage.
    function _getDN404Storage() internal pure virtual returns (DN404Storage storage $) {
        /// @solidity memory-safe-assembly
        assembly {
            // `uint72(bytes9(keccak256("DN404_STORAGE")))`.
            $.slot := 0xa20d6e21d0e5255308 // Truncate to 9 bytes to reduce bytecode size.
        }
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                         INITIALIZER                        */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Initializes the DN404 contract with an
    /// `initialTokenSupply`, `initialTokenOwner` and `mirror` NFT contract address.
    function _initializeDN404(
        uint256 initialTokenSupply,
        address initialSupplyOwner,
        address mirror
    ) internal virtual {
        DN404Storage storage $ = _getDN404Storage();

        if (_unit() == 0) revert UnitIsZero();
        if ($.mirrorERC721 != address(0)) revert DNAlreadyInitialized();
        if (mirror == address(0)) revert MirrorAddressIsZero();

        /// @solidity memory-safe-assembly
        assembly {
            // Make the call to link the mirror contract.
            mstore(0x00, 0x0f4599e5) // `linkMirrorContract(address)`.
            mstore(0x20, caller())
            if iszero(and(eq(mload(0x00), 1), call(gas(), mirror, 0, 0x1c, 0x24, 0x00, 0x20))) {
                mstore(0x00, 0xd125259c) // `LinkMirrorContractFailed()`.
                revert(0x1c, 0x04)
            }
        }

        $.nextTokenId = 1;
        $.mirrorERC721 = mirror;

        if (initialTokenSupply != 0) {
            if (initialSupplyOwner == address(0)) revert TransferToZeroAddress();
            if (_totalSupplyOverflows(initialTokenSupply)) revert TotalSupplyOverflow();

            $.totalSupply = uint96(initialTokenSupply);
            AddressData storage initialOwnerAddressData = _addressData(initialSupplyOwner);
            initialOwnerAddressData.balance = uint96(initialTokenSupply);

            /// @solidity memory-safe-assembly
            assembly {
                // Emit the {Transfer} event.
                mstore(0x00, initialTokenSupply)
                log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, 0, shr(96, shl(96, initialSupplyOwner)))
            }

            _setSkipNFT(initialSupplyOwner, true);
        }
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*               BASE UNIT FUNCTION TO OVERRIDE               */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Amount of token balance that is equal to one NFT.
    function _unit() internal view virtual returns (uint256) {
        return 10 ** 18;
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*               METADATA FUNCTIONS TO OVERRIDE               */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Returns the name of the token.
    function name() public view virtual returns (string memory);

    /// @dev Returns the symbol of the token.
    function symbol() public view virtual returns (string memory);

    /// @dev Returns the Uniform Resource Identifier (URI) for token `id`.
    function tokenURI(uint256 id) public view virtual returns (string memory);

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                       CONFIGURABLES                        */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Returns if direct NFT transfers should be used during ERC20 transfers
    /// whenever possible, instead of burning and re-minting.
    function _useDirectTransfersIfPossible() internal view virtual returns (bool) {
        return true;
    }

    /// @dev Returns if burns should be added to the burn pool.
    /// This returns false by default, which means the NFT IDs are re-minted in a cycle.
    function _addToBurnedPool(uint256 totalNFTSupplyAfterBurn, uint256 totalSupplyAfterBurn)
        internal
        view
        virtual
        returns (bool)
    {
        // Silence unused variable compiler warning.
        totalSupplyAfterBurn = totalNFTSupplyAfterBurn;
        return false;
    }

    /// @dev Returns whether to use the exists bitmap for more efficient
    /// scanning of an empty token ID slot.
    /// Recommended for collections that do not use the burn pool,
    /// and are expected to have nearly all possible NFTs materialized.
    ///
    /// Note: The returned value must be constant after initialization.
    function _useExistsLookup() internal view virtual returns (bool) {
        return true;
    }

    /// @dev Hook that is called after any NFT token transfers, including minting and burning.
    function _afterNFTTransfer(address from, address to, uint256 id) internal virtual {}

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                      ERC20 OPERATIONS                      */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Returns the decimals places of the token. Always 18.
    function decimals() public pure returns (uint8) {
        return 18;
    }

    /// @dev Returns the amount of tokens in existence.
    function totalSupply() public view virtual returns (uint256) {
        return uint256(_getDN404Storage().totalSupply);
    }

    /// @dev Returns the amount of tokens owned by `owner`.
    function balanceOf(address owner) public view virtual returns (uint256) {
        return _getDN404Storage().addressData[owner].balance;
    }

    /// @dev Returns the amount of tokens that `spender` can spend on behalf of `owner`.
    function allowance(address owner, address spender) public view returns (uint256) {
        if (_givePermit2DefaultInfiniteAllowance() && spender == _PERMIT2) {
            uint8 flags = _getDN404Storage().addressData[owner].flags;
            if (flags & _ADDRESS_DATA_OVERRIDE_PERMIT2_FLAG == 0) return type(uint256).max;
        }
        return _ref(_getDN404Storage().allowance, owner, spender).value;
    }

    /// @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
    ///
    /// Emits a {Approval} event.
    function approve(address spender, uint256 amount) public virtual returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

    /// @dev Transfer `amount` tokens from the caller to `to`.
    ///
    /// Will burn sender NFTs if balance after transfer is less than
    /// the amount required to support the current NFT balance.
    ///
    /// Will mint NFTs to `to` if the recipient's new balance supports
    /// additional NFTs ***AND*** the `to` address's skipNFT flag is
    /// set to false.
    ///
    /// Requirements:
    /// - `from` must at least have `amount`.
    ///
    /// Emits a {Transfer} event.
    function transfer(address to, uint256 amount) public virtual returns (bool) {
        _transfer(msg.sender, to, amount);
        return true;
    }

    /// @dev Transfers `amount` tokens from `from` to `to`.
    ///
    /// Note: Does not update the allowance if it is the maximum uint256 value.
    ///
    /// Will burn sender NFTs if balance after transfer is less than
    /// the amount required to support the current NFT balance.
    ///
    /// Will mint NFTs to `to` if the recipient's new balance supports
    /// additional NFTs ***AND*** the `to` address's skipNFT flag is
    /// set to false.
    ///
    /// Requirements:
    /// - `from` must at least have `amount`.
    /// - The caller must have at least `amount` of allowance to transfer the tokens of `from`.
    ///
    /// Emits a {Transfer} event.
    function transferFrom(address from, address to, uint256 amount) public virtual returns (bool) {
        Uint256Ref storage a = _ref(_getDN404Storage().allowance, from, msg.sender);

        uint256 allowed = _givePermit2DefaultInfiniteAllowance() && msg.sender == _PERMIT2
            && (_getDN404Storage().addressData[from].flags & _ADDRESS_DATA_OVERRIDE_PERMIT2_FLAG) == 0
            ? type(uint256).max
            : a.value;

        if (allowed != type(uint256).max) {
            if (amount > allowed) revert InsufficientAllowance();
            unchecked {
                a.value = allowed - amount;
            }
        }
        _transfer(from, to, amount);
        return true;
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                          PERMIT2                           */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Whether Permit2 has infinite allowances by default for all owners.
    /// For signature-based allowance granting for single transaction ERC20 `transferFrom`.
    /// To enable, override this function to return true.
    function _givePermit2DefaultInfiniteAllowance() internal view virtual returns (bool) {
        return false;
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                  INTERNAL MINT FUNCTIONS                   */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Mints `amount` tokens to `to`, increasing the total supply.
    ///
    /// Will mint NFTs to `to` if the recipient's new balance supports
    /// additional NFTs ***AND*** the `to` address's skipNFT flag is set to false.
    ///
    /// Emits a {Transfer} event.
    function _mint(address to, uint256 amount) internal virtual {
        if (to == address(0)) revert TransferToZeroAddress();

        AddressData storage toAddressData = _addressData(to);
        DN404Storage storage $ = _getDN404Storage();
        if ($.mirrorERC721 == address(0)) revert();

        _DNMintTemps memory t;
        unchecked {
            uint256 toBalance = uint256(toAddressData.balance) + amount;
            toAddressData.balance = uint96(toBalance);
            t.toEnd = toBalance / _unit();
        }
        uint256 maxId;
        unchecked {
            uint256 totalSupply_ = uint256($.totalSupply) + amount;
            $.totalSupply = uint96(totalSupply_);
            uint256 overflows = _toUint(_totalSupplyOverflows(totalSupply_));
            if (overflows | _toUint(totalSupply_ < amount) != 0) revert TotalSupplyOverflow();
            maxId = totalSupply_ / _unit();
        }
        unchecked {
            if (toAddressData.flags & _ADDRESS_DATA_SKIP_NFT_FLAG == 0) {
                Uint32Map storage toOwned = $.owned[to];
                Uint32Map storage oo = $.oo;
                uint256 toIndex = toAddressData.ownedLength;
                _DNPackedLogs memory packedLogs = _packedLogsMalloc(_zeroFloorSub(t.toEnd, toIndex));

                if (packedLogs.logs.length != 0) {
                    _packedLogsSet(packedLogs, to, 0);
                    $.totalNFTSupply += uint32(packedLogs.logs.length);
                    toAddressData.ownedLength = uint32(t.toEnd);
                    t.toAlias = _registerAndResolveAlias(toAddressData, to);
                    uint32 burnedPoolHead = $.burnedPoolHead;
                    t.burnedPoolTail = $.burnedPoolTail;
                    t.nextTokenId = _wrapNFTId($.nextTokenId, maxId);
                    // Mint loop.
                    do {
                        uint256 id;
                        if (burnedPoolHead != t.burnedPoolTail) {
                            id = _get($.burnedPool, burnedPoolHead++);
                        } else {
                            id = t.nextTokenId;
                            while (_get(oo, _ownershipIndex(id)) != 0) {
                                id = _useExistsLookup()
                                    ? _wrapNFTId(_findFirstUnset($.exists, id + 1, maxId + 1), maxId)
                                    : _wrapNFTId(id + 1, maxId);
                            }
                            t.nextTokenId = _wrapNFTId(id + 1, maxId);
                        }
                        if (_useExistsLookup()) _set($.exists, id, true);
                        _set(toOwned, toIndex, uint32(id));
                        _setOwnerAliasAndOwnedIndex(oo, id, t.toAlias, uint32(toIndex++));
                        _packedLogsAppend(packedLogs, id);
                        _afterNFTTransfer(address(0), to, id);
                    } while (toIndex != t.toEnd);

                    $.nextTokenId = uint32(t.nextTokenId);
                    $.burnedPoolHead = burnedPoolHead;
                    _packedLogsSend(packedLogs, $.mirrorERC721);
                }
            }
        }
        /// @solidity memory-safe-assembly
        assembly {
            // Emit the {Transfer} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, 0, shr(96, shl(96, to)))
        }
    }

    /// @dev Mints `amount` tokens to `to`, increasing the total supply.
    /// This variant mints NFT tokens starting from ID `preTotalSupply / _unit() + 1`.
    /// This variant will not touch the `burnedPool` and `nextTokenId`.
    ///
    /// Will mint NFTs to `to` if the recipient's new balance supports
    /// additional NFTs ***AND*** the `to` address's skipNFT flag is set to false.
    ///
    /// Emits a {Transfer} event.
    function _mintNext(address to, uint256 amount) internal virtual {
        if (to == address(0)) revert TransferToZeroAddress();

        AddressData storage toAddressData = _addressData(to);
        DN404Storage storage $ = _getDN404Storage();
        if ($.mirrorERC721 == address(0)) revert();

        _DNMintTemps memory t;
        unchecked {
            uint256 toBalance = uint256(toAddressData.balance) + amount;
            toAddressData.balance = uint96(toBalance);
            t.toEnd = toBalance / _unit();
        }
        uint256 startId;
        uint256 maxId;
        unchecked {
            uint256 preTotalSupply = uint256($.totalSupply);
            startId = preTotalSupply / _unit() + 1;
            uint256 totalSupply_ = uint256(preTotalSupply) + amount;
            $.totalSupply = uint96(totalSupply_);
            uint256 overflows = _toUint(_totalSupplyOverflows(totalSupply_));
            if (overflows | _toUint(totalSupply_ < amount) != 0) revert TotalSupplyOverflow();
            maxId = totalSupply_ / _unit();
        }
        unchecked {
            if (toAddressData.flags & _ADDRESS_DATA_SKIP_NFT_FLAG == 0) {
                Uint32Map storage toOwned = $.owned[to];
                Uint32Map storage oo = $.oo;
                uint256 toIndex = toAddressData.ownedLength;
                _DNPackedLogs memory packedLogs = _packedLogsMalloc(_zeroFloorSub(t.toEnd, toIndex));

                if (packedLogs.logs.length != 0) {
                    _packedLogsSet(packedLogs, to, 0);
                    $.totalNFTSupply += uint32(packedLogs.logs.length);
                    toAddressData.ownedLength = uint32(t.toEnd);
                    t.toAlias = _registerAndResolveAlias(toAddressData, to);
                    // Mint loop.
                    do {
                        uint256 id = startId;
                        while (_get(oo, _ownershipIndex(id)) != 0) {
                            id = _useExistsLookup()
                                ? _wrapNFTId(_findFirstUnset($.exists, id + 1, maxId + 1), maxId)
                                : _wrapNFTId(id + 1, maxId);
                        }
                        startId = _wrapNFTId(id + 1, maxId);
                        if (_useExistsLookup()) _set($.exists, id, true);
                        _set(toOwned, toIndex, uint32(id));
                        _setOwnerAliasAndOwnedIndex(oo, id, t.toAlias, uint32(toIndex++));
                        _packedLogsAppend(packedLogs, id);
                        _afterNFTTransfer(address(0), to, id);
                    } while (toIndex != t.toEnd);

                    _packedLogsSend(packedLogs, $.mirrorERC721);
                }
            }
        }
        /// @solidity memory-safe-assembly
        assembly {
            // Emit the {Transfer} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, 0, shr(96, shl(96, to)))
        }
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                  INTERNAL BURN FUNCTIONS                   */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Burns `amount` tokens from `from`, reducing the total supply.
    ///
    /// Will burn sender NFTs if balance after transfer is less than
    /// the amount required to support the current NFT balance.
    ///
    /// Emits a {Transfer} event.
    function _burn(address from, uint256 amount) internal virtual {
        AddressData storage fromAddressData = _addressData(from);
        DN404Storage storage $ = _getDN404Storage();
        if ($.mirrorERC721 == address(0)) revert();

        uint256 fromBalance = fromAddressData.balance;
        if (amount > fromBalance) revert InsufficientBalance();

        unchecked {
            fromAddressData.balance = uint96(fromBalance -= amount);
            uint256 totalSupply_ = uint256($.totalSupply) - amount;
            $.totalSupply = uint96(totalSupply_);

            Uint32Map storage fromOwned = $.owned[from];
            uint256 fromIndex = fromAddressData.ownedLength;
            uint256 numNFTBurns = _zeroFloorSub(fromIndex, fromBalance / _unit());

            if (numNFTBurns != 0) {
                _DNPackedLogs memory packedLogs = _packedLogsMalloc(numNFTBurns);
                _packedLogsSet(packedLogs, from, 1);
                bool addToBurnedPool;
                {
                    uint256 totalNFTSupply = uint256($.totalNFTSupply) - numNFTBurns;
                    $.totalNFTSupply = uint32(totalNFTSupply);
                    addToBurnedPool = _addToBurnedPool(totalNFTSupply, totalSupply_);
                }

                Uint32Map storage oo = $.oo;
                uint256 fromEnd = fromIndex - numNFTBurns;
                fromAddressData.ownedLength = uint32(fromEnd);
                uint32 burnedPoolTail = $.burnedPoolTail;
                // Burn loop.
                do {
                    uint256 id = _get(fromOwned, --fromIndex);
                    _setOwnerAliasAndOwnedIndex(oo, id, 0, 0);
                    _packedLogsAppend(packedLogs, id);
                    if (_useExistsLookup()) _set($.exists, id, false);
                    if (addToBurnedPool) _set($.burnedPool, burnedPoolTail++, uint32(id));
                    if (_get($.mayHaveNFTApproval, id)) {
                        _set($.mayHaveNFTApproval, id, false);
                        delete $.nftApprovals[id];
                    }
                    _afterNFTTransfer(from, address(0), id);
                } while (fromIndex != fromEnd);

                if (addToBurnedPool) $.burnedPoolTail = burnedPoolTail;
                _packedLogsSend(packedLogs, $.mirrorERC721);
            }
        }
        /// @solidity memory-safe-assembly
        assembly {
            // Emit the {Transfer} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, shl(96, from)), 0)
        }
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                INTERNAL TRANSFER FUNCTIONS                 */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Moves `amount` of tokens from `from` to `to`.
    ///
    /// Will burn sender NFTs if balance after transfer is less than
    /// the amount required to support the current NFT balance.
    ///
    /// Will mint NFTs to `to` if the recipient's new balance supports
    /// additional NFTs ***AND*** the `to` address's skipNFT flag is
    /// set to false.
    ///
    /// Emits a {Transfer} event.
    function _transfer(address from, address to, uint256 amount) internal virtual {
        if (to == address(0)) revert TransferToZeroAddress();

        AddressData storage fromAddressData = _addressData(from);
        AddressData storage toAddressData = _addressData(to);
        DN404Storage storage $ = _getDN404Storage();
        if ($.mirrorERC721 == address(0)) revert();

        _DNTransferTemps memory t;
        t.fromOwnedLength = fromAddressData.ownedLength;
        t.toOwnedLength = toAddressData.ownedLength;
        t.totalSupply = $.totalSupply;

        if (amount > (t.fromBalance = fromAddressData.balance)) revert InsufficientBalance();

        unchecked {
            fromAddressData.balance = uint96(t.fromBalance -= amount);
            toAddressData.balance = uint96(t.toBalance = uint256(toAddressData.balance) + amount);

            t.numNFTBurns = _zeroFloorSub(t.fromOwnedLength, t.fromBalance / _unit());

            if (toAddressData.flags & _ADDRESS_DATA_SKIP_NFT_FLAG == 0) {
                if (from == to) t.toOwnedLength = t.fromOwnedLength - t.numNFTBurns;
                t.numNFTMints = _zeroFloorSub(t.toBalance / _unit(), t.toOwnedLength);
            }

            while (_useDirectTransfersIfPossible()) {
                uint256 n = _min(t.fromOwnedLength, _min(t.numNFTBurns, t.numNFTMints));
                if (n == 0) break;
                t.numNFTBurns -= n;
                t.numNFTMints -= n;
                if (from == to) {
                    t.toOwnedLength += n;
                    break;
                }
                _DNDirectLogs memory directLogs = _directLogsMalloc(n, from, to);
                Uint32Map storage fromOwned = $.owned[from];
                Uint32Map storage toOwned = $.owned[to];
                t.toAlias = _registerAndResolveAlias(toAddressData, to);
                uint256 toIndex = t.toOwnedLength;
                // Direct transfer loop.
                do {
                    uint256 id = _get(fromOwned, --t.fromOwnedLength);
                    _set(toOwned, toIndex, uint32(id));
                    _setOwnerAliasAndOwnedIndex($.oo, id, t.toAlias, uint32(toIndex++));
                    _directLogsAppend(directLogs, id);
                    if (_get($.mayHaveNFTApproval, id)) {
                        _set($.mayHaveNFTApproval, id, false);
                        delete $.nftApprovals[id];
                    }
                    _afterNFTTransfer(from, to, id);
                } while (--n != 0);

                toAddressData.ownedLength = uint32(t.toOwnedLength = toIndex);
                fromAddressData.ownedLength = uint32(t.fromOwnedLength);
                _directLogsSend(directLogs, $.mirrorERC721);
                break;
            }

            t.totalNFTSupply = uint256($.totalNFTSupply) + t.numNFTMints - t.numNFTBurns;
            $.totalNFTSupply = uint32(t.totalNFTSupply);

            Uint32Map storage oo = $.oo;
            _DNPackedLogs memory packedLogs = _packedLogsMalloc(t.numNFTBurns + t.numNFTMints);

            t.burnedPoolTail = $.burnedPoolTail;
            if (t.numNFTBurns != 0) {
                _packedLogsSet(packedLogs, from, 1);
                bool addToBurnedPool = _addToBurnedPool(t.totalNFTSupply, t.totalSupply);
                Uint32Map storage fromOwned = $.owned[from];
                uint256 fromIndex = t.fromOwnedLength;
                fromAddressData.ownedLength = uint32(t.fromEnd = fromIndex - t.numNFTBurns);
                uint32 burnedPoolTail = t.burnedPoolTail;
                // Burn loop.
                do {
                    uint256 id = _get(fromOwned, --fromIndex);
                    _setOwnerAliasAndOwnedIndex(oo, id, 0, 0);
                    _packedLogsAppend(packedLogs, id);
                    if (_useExistsLookup()) _set($.exists, id, false);
                    if (addToBurnedPool) _set($.burnedPool, burnedPoolTail++, uint32(id));
                    if (_get($.mayHaveNFTApproval, id)) {
                        _set($.mayHaveNFTApproval, id, false);
                        delete $.nftApprovals[id];
                    }
                    _afterNFTTransfer(from, address(0), id);
                } while (fromIndex != t.fromEnd);

                if (addToBurnedPool) $.burnedPoolTail = (t.burnedPoolTail = burnedPoolTail);
            }

            if (t.numNFTMints != 0) {
                _packedLogsSet(packedLogs, to, 0);
                Uint32Map storage toOwned = $.owned[to];
                t.toAlias = _registerAndResolveAlias(toAddressData, to);
                uint256 maxId = t.totalSupply / _unit();
                t.nextTokenId = _wrapNFTId($.nextTokenId, maxId);
                uint256 toIndex = t.toOwnedLength;
                toAddressData.ownedLength = uint32(t.toEnd = toIndex + t.numNFTMints);
                uint32 burnedPoolHead = $.burnedPoolHead;
                // Mint loop.
                do {
                    uint256 id;
                    if (burnedPoolHead != t.burnedPoolTail) {
                        id = _get($.burnedPool, burnedPoolHead++);
                    } else {
                        id = t.nextTokenId;
                        while (_get(oo, _ownershipIndex(id)) != 0) {
                            id = _useExistsLookup()
                                ? _wrapNFTId(_findFirstUnset($.exists, id + 1, maxId + 1), maxId)
                                : _wrapNFTId(id + 1, maxId);
                        }
                        t.nextTokenId = _wrapNFTId(id + 1, maxId);
                    }
                    if (_useExistsLookup()) _set($.exists, id, true);
                    _set(toOwned, toIndex, uint32(id));
                    _setOwnerAliasAndOwnedIndex(oo, id, t.toAlias, uint32(toIndex++));
                    _packedLogsAppend(packedLogs, id);
                    _afterNFTTransfer(address(0), to, id);
                } while (toIndex != t.toEnd);

                $.burnedPoolHead = burnedPoolHead;
                $.nextTokenId = uint32(t.nextTokenId);
            }

            if (packedLogs.logs.length != 0) _packedLogsSend(packedLogs, $.mirrorERC721);
        }
        /// @solidity memory-safe-assembly
        assembly {
            // Emit the {Transfer} event.
            mstore(0x00, amount)
            // forgefmt: disable-next-item
            log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, shl(96, from)), shr(96, shl(96, to)))
        }
    }

    /// @dev Transfers token `id` from `from` to `to`.
    ///
    /// Requirements:
    ///
    /// - Call must originate from the mirror contract.
    /// - Token `id` must exist.
    /// - `from` must be the owner of the token.
    /// - `to` cannot be the zero address.
    ///   `msgSender` must be the owner of the token, or be approved to manage the token.
    ///
    /// Emits a {Transfer} event.
    function _transferFromNFT(address from, address to, uint256 id, address msgSender)
        internal
        virtual
    {
        if (to == address(0)) revert TransferToZeroAddress();

        DN404Storage storage $ = _getDN404Storage();
        if ($.mirrorERC721 == address(0)) revert();

        Uint32Map storage oo = $.oo;

        if (from != $.aliasToAddress[_get(oo, _ownershipIndex(_restrictNFTId(id)))]) {
            revert TransferFromIncorrectOwner();
        }

        if (msgSender != from) {
            if (_ref($.operatorApprovals, from, msgSender).value == 0) {
                if (msgSender != $.nftApprovals[id]) {
                    revert TransferCallerNotOwnerNorApproved();
                }
            }
        }

        AddressData storage fromAddressData = _addressData(from);
        AddressData storage toAddressData = _addressData(to);

        uint256 unit = _unit();
        mapping(address => Uint32Map) storage owned = $.owned;
        Uint32Map storage fromOwned = owned[from];

        unchecked {
            uint256 fromBalance = fromAddressData.balance;
            if (unit > fromBalance) revert InsufficientBalance();
            fromAddressData.balance = uint96(fromBalance - unit);
            toAddressData.balance += uint96(unit);
        }
        if (_get($.mayHaveNFTApproval, id)) {
            _set($.mayHaveNFTApproval, id, false);
            delete $.nftApprovals[id];
        }
        unchecked {
            uint32 updatedId = _get(fromOwned, --fromAddressData.ownedLength);
            uint32 i = _get(oo, _ownedIndex(id));
            _set(fromOwned, i, updatedId);
            _set(oo, _ownedIndex(updatedId), i);
        }
        unchecked {
            uint32 n = toAddressData.ownedLength++;
            _set(owned[to], n, uint32(id));
            _setOwnerAliasAndOwnedIndex(oo, id, _registerAndResolveAlias(toAddressData, to), n);
        }
        _afterNFTTransfer(from, to, id);
        /// @solidity memory-safe-assembly
        assembly {
            // Emit the {Transfer} event.
            mstore(0x00, unit)
            // forgefmt: disable-next-item
            log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, shl(96, from)), shr(96, shl(96, to)))
        }
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                 INTERNAL APPROVE FUNCTIONS                 */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Sets `amount` as the allowance of `spender` over the tokens of `owner`.
    ///
    /// Emits a {Approval} event.
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        if (_givePermit2DefaultInfiniteAllowance() && spender == _PERMIT2) {
            _getDN404Storage().addressData[owner].flags |= _ADDRESS_DATA_OVERRIDE_PERMIT2_FLAG;
        }
        _ref(_getDN404Storage().allowance, owner, spender).value = amount;
        /// @solidity memory-safe-assembly
        assembly {
            // Emit the {Approval} event.
            mstore(0x00, amount)
            // forgefmt: disable-next-item
            log3(0x00, 0x20, _APPROVAL_EVENT_SIGNATURE, shr(96, shl(96, owner)), shr(96, shl(96, spender)))
        }
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                 DATA HITCHHIKING FUNCTIONS                 */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Returns the auxiliary data for `owner`.
    /// Minting, transferring, burning the tokens of `owner` will not change the auxiliary data.
    /// Auxiliary data can be set for any address, even if it does not have any tokens.
    function _getAux(address owner) internal view virtual returns (uint88) {
        return _getDN404Storage().addressData[owner].aux;
    }

    /// @dev Set the auxiliary data for `owner` to `value`.
    /// Minting, transferring, burning the tokens of `owner` will not change the auxiliary data.
    /// Auxiliary data can be set for any address, even if it does not have any tokens.
    function _setAux(address owner, uint88 value) internal virtual {
        _getDN404Storage().addressData[owner].aux = value;
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                     SKIP NFT FUNCTIONS                     */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Returns true if minting and transferring ERC20s to `owner` will skip minting NFTs.
    /// Returns false otherwise.
    function getSkipNFT(address owner) public view virtual returns (bool) {
        AddressData storage d = _getDN404Storage().addressData[owner];
        if (d.flags & _ADDRESS_DATA_INITIALIZED_FLAG == 0) return _hasCode(owner);
        return d.flags & _ADDRESS_DATA_SKIP_NFT_FLAG != 0;
    }

    /// @dev Sets the caller's skipNFT flag to `skipNFT`. Returns true.
    ///
    /// Emits a {SkipNFTSet} event.
    function setSkipNFT(bool skipNFT) public virtual returns (bool) {
        _setSkipNFT(msg.sender, skipNFT);
        return true;
    }

    /// @dev Internal function to set account `owner` skipNFT flag to `state`
    ///
    /// Initializes account `owner` AddressData if it is not currently initialized.
    ///
    /// Emits a {SkipNFTSet} event.
    function _setSkipNFT(address owner, bool state) internal virtual {
        AddressData storage d = _addressData(owner);
        if ((d.flags & _ADDRESS_DATA_SKIP_NFT_FLAG != 0) != state) {
            d.flags ^= _ADDRESS_DATA_SKIP_NFT_FLAG;
        }
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, iszero(iszero(state)))
            log2(0x00, 0x20, _SKIP_NFT_SET_EVENT_SIGNATURE, shr(96, shl(96, owner)))
        }
    }

    /// @dev Returns a storage data pointer for account `owner` AddressData
    ///
    /// Initializes account `owner` AddressData if it is not currently initialized.
    function _addressData(address owner) internal virtual returns (AddressData storage d) {
        d = _getDN404Storage().addressData[owner];
        unchecked {
            if (d.flags & _ADDRESS_DATA_INITIALIZED_FLAG == 0) {
                uint256 skipNFT = _toUint(_hasCode(owner)) * _ADDRESS_DATA_SKIP_NFT_FLAG;
                d.flags = uint8(skipNFT | _ADDRESS_DATA_INITIALIZED_FLAG);
            }
        }
    }

    /// @dev Returns the `addressAlias` of account `to`.
    ///
    /// Assigns and registers the next alias if `to` alias was not previously registered.
    function _registerAndResolveAlias(AddressData storage toAddressData, address to)
        internal
        virtual
        returns (uint32 addressAlias)
    {
        DN404Storage storage $ = _getDN404Storage();
        addressAlias = toAddressData.addressAlias;
        if (addressAlias == 0) {
            unchecked {
                addressAlias = ++$.numAliases;
            }
            toAddressData.addressAlias = addressAlias;
            $.aliasToAddress[addressAlias] = to;
            if (addressAlias == 0) revert(); // Overflow.
        }
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                     MIRROR OPERATIONS                      */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Returns the address of the mirror NFT contract.
    function mirrorERC721() public view virtual returns (address) {
        return _getDN404Storage().mirrorERC721;
    }

    /// @dev Returns the total NFT supply.
    function _totalNFTSupply() internal view virtual returns (uint256) {
        return _getDN404Storage().totalNFTSupply;
    }

    /// @dev Returns `owner` NFT balance.
    function _balanceOfNFT(address owner) internal view virtual returns (uint256) {
        return _getDN404Storage().addressData[owner].ownedLength;
    }

    /// @dev Returns the owner of token `id`.
    /// Returns the zero address instead of reverting if the token does not exist.
    function _ownerAt(uint256 id) internal view virtual returns (address) {
        DN404Storage storage $ = _getDN404Storage();
        return $.aliasToAddress[_get($.oo, _ownershipIndex(_restrictNFTId(id)))];
    }

    /// @dev Returns the owner of token `id`.
    ///
    /// Requirements:
    /// - Token `id` must exist.
    function _ownerOf(uint256 id) internal view virtual returns (address) {
        if (!_exists(id)) revert TokenDoesNotExist();
        return _ownerAt(id);
    }

    /// @dev Returns if token `id` exists.
    function _exists(uint256 id) internal view virtual returns (bool) {
        return _ownerAt(id) != address(0);
    }

    /// @dev Returns the account approved to manage token `id`.
    ///
    /// Requirements:
    /// - Token `id` must exist.
    function _getApproved(uint256 id) internal view virtual returns (address) {
        if (!_exists(id)) revert TokenDoesNotExist();
        return _getDN404Storage().nftApprovals[id];
    }

    /// @dev Sets `spender` as the approved account to manage token `id`, using `msgSender`.
    ///
    /// Requirements:
    /// - `msgSender` must be the owner or an approved operator for the token owner.
    function _approveNFT(address spender, uint256 id, address msgSender)
        internal
        virtual
        returns (address owner)
    {
        DN404Storage storage $ = _getDN404Storage();

        owner = $.aliasToAddress[_get($.oo, _ownershipIndex(_restrictNFTId(id)))];

        if (msgSender != owner) {
            if (_ref($.operatorApprovals, owner, msgSender).value == 0) {
                revert ApprovalCallerNotOwnerNorApproved();
            }
        }

        $.nftApprovals[id] = spender;
        _set($.mayHaveNFTApproval, id, spender != address(0));
    }

    /// @dev Approve or remove the `operator` as an operator for `msgSender`,
    /// without authorization checks.
    function _setApprovalForAll(address operator, bool approved, address msgSender)
        internal
        virtual
    {
        _ref(_getDN404Storage().operatorApprovals, msgSender, operator).value = _toUint(approved);
    }

    /// @dev Returns the NFT IDs of `owner` in range `[begin, end)`.
    /// Optimized for smaller bytecode size, as this function is intended for off-chain calling.
    function _ownedIds(address owner, uint256 begin, uint256 end)
        internal
        view
        virtual
        returns (uint256[] memory ids)
    {
        DN404Storage storage $ = _getDN404Storage();
        Uint32Map storage owned = $.owned[owner];
        uint256 n = _min($.addressData[owner].ownedLength, end);
        /// @solidity memory-safe-assembly
        assembly {
            ids := mload(0x40)
            let i := begin
            for {} lt(i, n) { i := add(i, 1) } {
                let s := add(shl(96, owned.slot), shr(3, i)) // Storage slot.
                let id := and(0xffffffff, shr(shl(5, and(i, 7)), sload(s)))
                mstore(add(add(ids, 0x20), shl(5, sub(i, begin))), id) // Append to.
            }
            mstore(ids, sub(i, begin)) // Store the length.
            mstore(0x40, add(add(ids, 0x20), shl(5, sub(i, begin)))) // Allocate memory.
        }
    }

    /// @dev Fallback modifier to dispatch calls from the mirror NFT contract
    /// to internal functions in this contract.
    modifier dn404Fallback() virtual {
        DN404Storage storage $ = _getDN404Storage();

        uint256 fnSelector = _calldataload(0x00) >> 224;
        address mirror = $.mirrorERC721;

        // `transferFromNFT(address,address,uint256,address)`.
        if (fnSelector == 0xe5eb36c8) {
            if (msg.sender != mirror) revert SenderNotMirror();
            _transferFromNFT(
                address(uint160(_calldataload(0x04))), // `from`.
                address(uint160(_calldataload(0x24))), // `to`.
                _calldataload(0x44), // `id`.
                address(uint160(_calldataload(0x64))) // `msgSender`.
            );
            _return(1);
        }
        // `setApprovalForAll(address,bool,address)`.
        if (fnSelector == 0x813500fc) {
            if (msg.sender != mirror) revert SenderNotMirror();
            _setApprovalForAll(
                address(uint160(_calldataload(0x04))), // `spender`.
                _calldataload(0x24) != 0, // `status`.
                address(uint160(_calldataload(0x44))) // `msgSender`.
            );
            _return(1);
        }
        // `isApprovedForAll(address,address)`.
        if (fnSelector == 0xe985e9c5) {
            if (msg.sender != mirror) revert SenderNotMirror();
            Uint256Ref storage ref = _ref(
                $.operatorApprovals,
                address(uint160(_calldataload(0x04))), // `owner`.
                address(uint160(_calldataload(0x24))) // `operator`.
            );
            _return(ref.value);
        }
        // `ownerOf(uint256)`.
        if (fnSelector == 0x6352211e) {
            if (msg.sender != mirror) revert SenderNotMirror();
            _return(uint160(_ownerOf(_calldataload(0x04))));
        }
        // `ownerAt(uint256)`.
        if (fnSelector == 0x24359879) {
            if (msg.sender != mirror) revert SenderNotMirror();
            _return(uint160(_ownerAt(_calldataload(0x04))));
        }
        // `approveNFT(address,uint256,address)`.
        if (fnSelector == 0xd10b6e0c) {
            if (msg.sender != mirror) revert SenderNotMirror();
            address owner = _approveNFT(
                address(uint160(_calldataload(0x04))), // `spender`.
                _calldataload(0x24), // `id`.
                address(uint160(_calldataload(0x44))) // `msgSender`.
            );
            _return(uint160(owner));
        }
        // `getApproved(uint256)`.
        if (fnSelector == 0x081812fc) {
            if (msg.sender != mirror) revert SenderNotMirror();
            _return(uint160(_getApproved(_calldataload(0x04))));
        }
        // `balanceOfNFT(address)`.
        if (fnSelector == 0xf5b100ea) {
            if (msg.sender != mirror) revert SenderNotMirror();
            _return(_balanceOfNFT(address(uint160(_calldataload(0x04)))));
        }
        // `totalNFTSupply()`.
        if (fnSelector == 0xe2c79281) {
            if (msg.sender != mirror) revert SenderNotMirror();
            _return(_totalNFTSupply());
        }
        // `implementsDN404()`.
        if (fnSelector == 0xb7a94eb8) {
            _return(1);
        }
        _;
    }

    /// @dev Fallback function for calls from mirror NFT contract.
    /// Override this if you need to implement your custom
    /// fallback with utilities like Solady's `LibZip.cdFallback()`.
    /// And always remember to always wrap the fallback with `dn404Fallback`.
    fallback() external payable virtual dn404Fallback {
        revert FnSelectorNotRecognized(); // Not mandatory. Just for quality of life.
    }

    /// @dev This is to silence the compiler warning.
    /// Override and remove the revert if you want your contract to receive ETH via receive.
    receive() external payable virtual {
        if (msg.value != 0) revert();
    }

    /*«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-«-*/
    /*                 INTERNAL / PRIVATE HELPERS                 */
    /*-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»-»*/

    /// @dev Returns `(i - 1) << 1`.
    function _ownershipIndex(uint256 i) internal pure returns (uint256) {
        unchecked {
            return (i - 1) << 1; // Minus 1 as token IDs start from 1.
        }
    }

    /// @dev Returns `((i - 1) << 1) + 1`.
    function _ownedIndex(uint256 i) internal pure returns (uint256) {
        unchecked {
            return ((i - 1) << 1) + 1; // Minus 1 as token IDs start from 1.
        }
    }

    /// @dev Returns the uint32 value at `index` in `map`.
    function _get(Uint32Map storage map, uint256 index) internal view returns (uint32 result) {
        /// @solidity memory-safe-assembly
        assembly {
            let s := add(shl(96, map.slot), shr(3, index)) // Storage slot.
            result := and(0xffffffff, shr(shl(5, and(index, 7)), sload(s)))
        }
    }

    /// @dev Updates the uint32 value at `index` in `map`.
    function _set(Uint32Map storage map, uint256 index, uint32 value) internal {
        /// @solidity memory-safe-assembly
        assembly {
            let s := add(shl(96, map.slot), shr(3, index)) // Storage slot.
            let o := shl(5, and(index, 7)) // Storage slot offset (bits).
            let v := sload(s) // Storage slot value.
            sstore(s, xor(v, shl(o, and(0xffffffff, xor(value, shr(o, v))))))
        }
    }

    /// @dev Sets the owner alias and the owned index together.
    function _setOwnerAliasAndOwnedIndex(
        Uint32Map storage map,
        uint256 id,
        uint32 ownership,
        uint32 ownedIndex
    ) internal {
        /// @solidity memory-safe-assembly
        assembly {
            let i := sub(id, 1) // Index of the uint64 combined value.
            let s := add(shl(96, map.slot), shr(2, i)) // Storage slot.
            let v := sload(s) // Storage slot value.
            let o := shl(6, and(i, 3)) // Storage slot offset (bits).
            let combined := or(shl(32, ownedIndex), and(0xffffffff, ownership))
            sstore(s, xor(v, shl(o, and(0xffffffffffffffff, xor(shr(o, v), combined)))))
        }
    }

    /// @dev Returns the boolean value of the bit at `index` in `bitmap`.
    function _get(Bitmap storage bitmap, uint256 index) internal view returns (bool result) {
        /// @solidity memory-safe-assembly
        assembly {
            let s := add(shl(96, bitmap.slot), shr(8, index)) // Storage slot.
            result := and(1, shr(and(0xff, index), sload(s)))
        }
    }

    /// @dev Updates the bit at `index` in `bitmap` to `value`.
    function _set(Bitmap storage bitmap, uint256 index, bool value) internal {
        /// @solidity memory-safe-assembly
        assembly {
            let s := add(shl(96, bitmap.slot), shr(8, index)) // Storage slot.
            let o := and(0xff, index) // Storage slot offset (bits).
            sstore(s, or(and(sload(s), not(shl(o, 1))), shl(o, iszero(iszero(value)))))
        }
    }

    /// @dev Returns the index of the least significant unset bit in `[begin, end)`.
    /// If no unset bit is found, returns `type(uint256).max`.
    function _findFirstUnset(Bitmap storage bitmap, uint256 begin, uint256 end)
        internal
        view
        returns (uint256 unsetBitIndex)
    {
        /// @solidity memory-safe-assembly
        assembly {
            unsetBitIndex := not(0) // Initialize to `type(uint256).max`.
            let s := shl(96, bitmap.slot) // Storage offset of the bitmap.
            let bucket := add(s, shr(8, begin))
            let negBits := shl(and(0xff, begin), shr(and(0xff, begin), not(sload(bucket))))
            if iszero(negBits) {
                let lastBucket := add(s, shr(8, end))
                for {} 1 {} {
                    bucket := add(bucket, 1)
                    negBits := not(sload(bucket))
                    if or(negBits, gt(bucket, lastBucket)) { break }
                }
                if gt(bucket, lastBucket) {
                    negBits := shr(and(0xff, not(end)), shl(and(0xff, not(end)), negBits))
                }
            }
            if negBits {
                // Find-first-set routine.
                let b := and(negBits, add(not(negBits), 1)) // Isolate the least significant bit.
                let r := shl(7, lt(0xffffffffffffffffffffffffffffffff, b))
                r := or(r, shl(6, lt(0xffffffffffffffff, shr(r, b))))
                r := or(r, shl(5, lt(0xffffffff, shr(r, b))))
                // For the remaining 32 bits, use a De Bruijn lookup.
                // forgefmt: disable-next-item
                r := or(r, byte(and(div(0xd76453e0, shr(r, b)), 0x1f),
                    0x001f0d1e100c1d070f090b19131c1706010e11080a1a141802121b1503160405))
                r := or(shl(8, sub(bucket, s)), r)
                unsetBitIndex := or(r, sub(0, or(iszero(lt(r, end)), lt(r, begin))))
            }
        }
    }

    /// @dev Returns a storage reference to the value at (`a0`, `a1`) in `map`.
    function _ref(AddressPairToUint256RefMap storage map, address a0, address a1)
        internal
        pure
        returns (Uint256Ref storage ref)
    {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x28, a1)
            mstore(0x14, a0)
            mstore(0x00, map.slot)
            ref.slot := keccak256(0x00, 0x48)
            // Clear the part of the free memory pointer that was overwritten.
            mstore(0x28, 0x00)
        }
    }

    /// @dev Wraps the NFT ID.
    function _wrapNFTId(uint256 id, uint256 maxId) internal pure returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := or(mul(iszero(gt(id, maxId)), id), gt(id, maxId))
        }
    }

    /// @dev Returns `id > type(uint32).max ? 0 : id`.
    function _restrictNFTId(uint256 id) internal pure returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := mul(id, lt(id, 0x100000000))
        }
    }

    /// @dev Returns whether `amount` is a valid `totalSupply`.
    function _totalSupplyOverflows(uint256 amount) internal view returns (bool result) {
        uint256 unit = _unit();
        /// @solidity memory-safe-assembly
        assembly {
            result := iszero(iszero(or(shr(96, amount), lt(0xfffffffe, div(amount, unit)))))
        }
    }

    /// @dev Returns `max(0, x - y)`.
    function _zeroFloorSub(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := mul(gt(x, y), sub(x, y))
        }
    }

    /// @dev Returns `x < y ? x : y`.
    function _min(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            z := xor(x, mul(xor(x, y), lt(y, x)))
        }
    }

    /// @dev Returns `b ? 1 : 0`.
    function _toUint(bool b) internal pure returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := iszero(iszero(b))
        }
    }

    /// @dev Struct containing direct transfer log data for {Transfer} events to be
    /// emitted by the mirror NFT contract.
    struct _DNDirectLogs {
        uint256 offset;
        address from;
        address to;
        uint256[] logs;
    }

    /// @dev Initiates memory allocation for direct logs with `n` log items.
    function _directLogsMalloc(uint256 n, address from, address to)
        private
        pure
        returns (_DNDirectLogs memory p)
    {
        /// @solidity memory-safe-assembly
        assembly {
            // Note that `p` implicitly allocates and advances the free memory pointer by
            // 4 words, which we can safely mutate in `_directLogsSend`.
            let logs := mload(0x40)
            mstore(logs, n) // Store the length.
            let offset := add(0x20, logs) // Skip the word for `p.logs.length`.
            mstore(0x40, add(offset, shl(5, n))) // Allocate memory.
            mstore(add(0x60, p), logs) // Set `p.logs`.
            mstore(add(0x40, p), to) // Set `p.to`.
            mstore(add(0x20, p), from) // Set `p.from`.
            mstore(p, offset) // Set `p.offset`.
        }
    }

    /// @dev Adds a direct log item to `p` with token `id`.
    function _directLogsAppend(_DNDirectLogs memory p, uint256 id) private pure {
        /// @solidity memory-safe-assembly
        assembly {
            let offset := mload(p)
            mstore(offset, id)
            mstore(p, add(offset, 0x20))
        }
    }

    /// @dev Calls the `mirror` NFT contract to emit {Transfer} events for packed logs `p`.
    function _directLogsSend(_DNDirectLogs memory p, address mirror) private {
        /// @solidity memory-safe-assembly
        assembly {
            let logs := mload(add(p, 0x60))
            let n := add(0x84, shl(5, mload(logs))) // Length of calldata to send.
            let o := sub(logs, 0x80) // Start of calldata to send.
            mstore(o, 0x144027d3) // `logDirectTransfer(address,address,uint256[])`.
            let from := mload(add(0x20, p))
            let to := mload(add(0x40, p))
            mstore(add(o, 0x20), from)
            mstore(add(o, 0x40), to)
            mstore(add(o, 0x60), 0x60) // Offset of `logs` in the calldata to send.
            if iszero(and(eq(mload(o), 1), call(gas(), mirror, 0, add(o, 0x1c), n, o, 0x20))) {
                revert(o, 0x00)
            }
        }
    }

    /// @dev Struct containing packed log data for {Transfer} events to be
    /// emitted by the mirror NFT contract.
    struct _DNPackedLogs {
        uint256 offset;
        uint256 addressAndBit;
        uint256[] logs;
    }

    /// @dev Initiates memory allocation for packed logs with `n` log items.
    function _packedLogsMalloc(uint256 n) private pure returns (_DNPackedLogs memory p) {
        /// @solidity memory-safe-assembly
        assembly {
            // Note that `p` implicitly allocates and advances the free memory pointer by
            // 3 words, which we can safely mutate in `_packedLogsSend`.
            let logs := mload(0x40)
            mstore(logs, n) // Store the length.
            let offset := add(0x20, logs) // Skip the word for `p.logs.length`.
            mstore(0x40, add(offset, shl(5, n))) // Allocate memory.
            mstore(add(0x40, p), logs) // Set `p.logs`.
            mstore(p, offset) // Set `p.offset`.
        }
    }

    /// @dev Set the current address and the burn bit.
    function _packedLogsSet(_DNPackedLogs memory p, address a, uint256 burnBit) private pure {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(add(p, 0x20), or(shl(96, a), burnBit)) // Set `p.addressAndBit`.
        }
    }

    /// @dev Adds a packed log item to `p` with token `id`.
    function _packedLogsAppend(_DNPackedLogs memory p, uint256 id) private pure {
        /// @solidity memory-safe-assembly
        assembly {
            let offset := mload(p)
            mstore(offset, or(mload(add(p, 0x20)), shl(8, id))) // `p.addressAndBit | (id << 8)`.
            mstore(p, add(offset, 0x20))
        }
    }

    /// @dev Calls the `mirror` NFT contract to emit {Transfer} events for packed logs `p`.
    function _packedLogsSend(_DNPackedLogs memory p, address mirror) private {
        /// @solidity memory-safe-assembly
        assembly {
            let logs := mload(add(p, 0x40))
            let o := sub(logs, 0x40) // Start of calldata to send.
            mstore(o, 0x263c69d6) // `logTransfer(uint256[])`.
            mstore(add(o, 0x20), 0x20) // Offset of `logs` in the calldata to send.
            let n := add(0x44, shl(5, mload(logs))) // Length of calldata to send.
            if iszero(and(eq(mload(o), 1), call(gas(), mirror, 0, add(o, 0x1c), n, o, 0x20))) {
                revert(o, 0x00)
            }
        }
    }

    /// @dev Struct of temporary variables for transfers.
    struct _DNTransferTemps {
        uint256 numNFTBurns;
        uint256 numNFTMints;
        uint256 fromBalance;
        uint256 toBalance;
        uint256 fromOwnedLength;
        uint256 toOwnedLength;
        uint256 totalSupply;
        uint256 totalNFTSupply;
        uint256 fromEnd;
        uint256 toEnd;
        uint32 toAlias;
        uint256 nextTokenId;
        uint32 burnedPoolTail;
    }

    /// @dev Struct of temporary variables for mints.
    struct _DNMintTemps {
        uint256 nextTokenId;
        uint32 burnedPoolTail;
        uint256 toEnd;
        uint32 toAlias;
    }

    /// @dev Returns if `a` has bytecode of non-zero length.
    function _hasCode(address a) private view returns (bool result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := extcodesize(a) // Can handle dirty upper bits.
        }
    }

    /// @dev Returns the calldata value at `offset`.
    function _calldataload(uint256 offset) private pure returns (uint256 value) {
        /// @solidity memory-safe-assembly
        assembly {
            value := calldataload(offset)
        }
    }

    /// @dev Executes a return opcode to return `x` and end the current call frame.
    function _return(uint256 x) private pure {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, x)
            return(0x00, 0x20)
        }
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AlreadyInitialized","type":"error"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"DNAlreadyInitialized","type":"error"},{"inputs":[],"name":"FnSelectorNotRecognized","type":"error"},{"inputs":[],"name":"InsufficientAllowance","type":"error"},{"inputs":[],"name":"InsufficientBalance","type":"error"},{"inputs":[],"name":"InvalidMint","type":"error"},{"inputs":[],"name":"InvalidPrice","type":"error"},{"inputs":[],"name":"InvalidProof","type":"error"},{"inputs":[],"name":"LinkMirrorContractFailed","type":"error"},{"inputs":[],"name":"Locked","type":"error"},{"inputs":[],"name":"MirrorAddressIsZero","type":"error"},{"inputs":[],"name":"NewOwnerIsZeroAddress","type":"error"},{"inputs":[],"name":"NoHandoverRequest","type":"error"},{"inputs":[],"name":"NotLive","type":"error"},{"inputs":[],"name":"SenderNotMirror","type":"error"},{"inputs":[],"name":"TokenDoesNotExist","type":"error"},{"inputs":[],"name":"TotalSupplyOverflow","type":"error"},{"inputs":[],"name":"TotalSupplyReached","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"Unauthorized","type":"error"},{"inputs":[],"name":"UnitIsZero","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pendingOwner","type":"address"}],"name":"OwnershipHandoverCanceled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pendingOwner","type":"address"}],"name":"OwnershipHandoverRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"target","type":"address"},{"indexed":false,"internalType":"bool","name":"status","type":"bool"}],"name":"SkipNFTSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Transfer","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"MAX_PER_WALLET","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_SUPPLY","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOfNFT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"addresses","type":"address[]"},{"internalType":"uint256","name":"nftAmount","type":"uint256"}],"name":"batchAirdropMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"cancelOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"pendingOwner","type":"address"}],"name":"completeOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"gasBurnFactor","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"gasBurnFactorLocked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"getSkipNFT","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"mirror","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"lockGasBurnFactor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint8","name":"mintType","type":"uint8"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"mintPrice","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"mirrorERC721","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"begin","type":"uint256"},{"internalType":"uint256","name":"end","type":"uint256"}],"name":"ownedIds","outputs":[{"internalType":"uint256[]","name":"result","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"result","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pendingOwner","type":"address"}],"name":"ownershipHandoverExpiresAt","outputs":[{"internalType":"uint256","name":"result","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"requestOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"__gtdAllowlistRoot","type":"bytes32"},{"internalType":"bytes32","name":"__fcfsAllowlistRoot","type":"bytes32"}],"name":"setAllowlistRoots","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURI_","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"gasBurnFactor_","type":"uint32"}],"name":"setGasBurnFactor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"__gtdStartTime","type":"uint256"},{"internalType":"uint256","name":"__fcfsStartTime","type":"uint256"},{"internalType":"uint256","name":"__publicStartTime","type":"uint256"}],"name":"setMintStartTimes","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"skipNFT","type":"bool"}],"name":"setSkipNFT","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"result","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalMinted","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

Deployed Bytecode

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

Loading...
Loading
Loading...
Loading
[ Download: CSV Export  ]
[ Download: CSV Export  ]

A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.