Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity >=0.7.0 <0.9.0;

import "erc721a/contracts/ERC721A.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract BlurBears is ERC721A, Ownable  {
  uint256 public cost = 0.0042 ether;
  uint256 public maxSupply = 8888;
  uint256 public maxPerWallet = 20;
  uint256 public maxPerTx = 10;
  uint256 public freeMintMax = 1;
  uint256 public freeMintSupply = 8888;

  bool public sale = false;

  constructor(
  ) ERC721A("BlurBears", "BB") payable {
  }

  function mint(uint256 _amount) external payable {
    require(sale, "Sale isn't active");
    require(_totalMinted() + _amount <= maxSupply, "Max Supply");
    require(_numberMinted(msg.sender) + _amount <= maxPerWallet, "20 max!");
    require(_amount <= maxPerTx, "10 per tx!");

    uint256 paidMints = _amount;
    if (_numberMinted(msg.sender) == 0) {
        paidMints -= 1;
    } 

    require(msg.value >= cost * paidMints, "Not enough ETH");
    _safeMint(msg.sender, _amount);
  }

  function setCost(uint256 _cost) external onlyOwner {
    cost = _cost;
  }
  
  function setSupply(uint256 _newSupply) external onlyOwner {
    maxSupply = _newSupply;
  }
  
  function numberMinted(address owner) public view returns (uint256) {
    return _numberMinted(owner);
  }
  
  function setMaxPerTx(uint256 _newMax) external onlyOwner {
    maxPerTx = _newMax;
  }

  function setMaxPerWallet(uint256 _newMax) external onlyOwner {
    maxPerWallet = _newMax;
  }

  //METADATA
  string public baseURI;

  function _startTokenId() internal pure override returns (uint256) {
    return 1;
  }

  function setBaseURI(string calldata _newURI) external onlyOwner {
    baseURI = _newURI;
  }

  function _baseURI() internal view virtual override returns (string memory) {
    return baseURI;
  }

  function toggleSale(bool _toggle) external onlyOwner {
    sale = _toggle;
  }

  function mintTo(uint256 _amount, address _to) external onlyOwner {
    require(_totalMinted() + _amount <= maxSupply, "Max Supply");
    _mint(_to, _amount);
  }

  //WITHDRAW
  function withdraw() external onlyOwner {
    (bool success, ) = msg.sender.call{value: address(this).balance}("");
    require(success, "Transfer failed.");
  }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.2.3
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import './IERC721A.sol';

/**
 * @dev Interface of ERC721 token receiver.
 */
interface ERC721A__IERC721Receiver {
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

/**
 * @title ERC721A
 *
 * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
 * Non-Fungible Token Standard, including the Metadata extension.
 * Optimized for lower gas during batch mints.
 *
 * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
 * starting from `_startTokenId()`.
 *
 * Assumptions:
 *
 * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is IERC721A {
    // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).
    struct TokenApprovalRef {
        address value;
    }

    // =============================================================
    //                           CONSTANTS
    // =============================================================

    // Mask of an entry in packed address data.
    uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;

    // The bit position of `numberMinted` in packed address data.
    uint256 private constant _BITPOS_NUMBER_MINTED = 64;

    // The bit position of `numberBurned` in packed address data.
    uint256 private constant _BITPOS_NUMBER_BURNED = 128;

    // The bit position of `aux` in packed address data.
    uint256 private constant _BITPOS_AUX = 192;

    // Mask of all 256 bits in packed address data except the 64 bits for `aux`.
    uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;

    // The bit position of `startTimestamp` in packed ownership.
    uint256 private constant _BITPOS_START_TIMESTAMP = 160;

    // The bit mask of the `burned` bit in packed ownership.
    uint256 private constant _BITMASK_BURNED = 1 << 224;

    // The bit position of the `nextInitialized` bit in packed ownership.
    uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;

    // The bit mask of the `nextInitialized` bit in packed ownership.
    uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;

    // The bit position of `extraData` in packed ownership.
    uint256 private constant _BITPOS_EXTRA_DATA = 232;

    // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
    uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;

    // The mask of the lower 160 bits for addresses.
    uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;

    // The maximum `quantity` that can be minted with {_mintERC2309}.
    // This limit is to prevent overflows on the address data entries.
    // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
    // is required to cause an overflow, which is unrealistic.
    uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;

    // The `Transfer` event signature is given by:
    // `keccak256(bytes("Transfer(address,address,uint256)"))`.
    bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
        0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;

    // =============================================================
    //                            STORAGE
    // =============================================================

    // The next token ID to be minted.
    uint256 private _currentIndex;

    // The number of tokens burned.
    uint256 private _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned.
    // See {_packedOwnershipOf} implementation for details.
    //
    // Bits Layout:
    // - [0..159]   `addr`
    // - [160..223] `startTimestamp`
    // - [224]      `burned`
    // - [225]      `nextInitialized`
    // - [232..255] `extraData`
    mapping(uint256 => uint256) private _packedOwnerships;

    // Mapping owner address to address data.
    //
    // Bits Layout:
    // - [0..63]    `balance`
    // - [64..127]  `numberMinted`
    // - [128..191] `numberBurned`
    // - [192..255] `aux`
    mapping(address => uint256) private _packedAddressData;

    // Mapping from token ID to approved address.
    mapping(uint256 => TokenApprovalRef) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    // =============================================================
    //                          CONSTRUCTOR
    // =============================================================

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    // =============================================================
    //                   TOKEN COUNTING OPERATIONS
    // =============================================================

    /**
     * @dev Returns the starting token ID.
     * To change the starting token ID, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @dev Returns the next token ID to be minted.
     */
    function _nextTokenId() internal view virtual returns (uint256) {
        return _currentIndex;
    }

    /**
     * @dev Returns the total number of tokens in existence.
     * Burned tokens will reduce the count.
     * To get the total number of tokens minted, please see {_totalMinted}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than `_currentIndex - _startTokenId()` times.
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

    /**
     * @dev Returns the total amount of tokens minted in the contract.
     */
    function _totalMinted() internal view virtual returns (uint256) {
        // Counter underflow is impossible as `_currentIndex` does not decrement,
        // and it is initialized to `_startTokenId()`.
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @dev Returns the total number of tokens burned.
     */
    function _totalBurned() internal view virtual returns (uint256) {
        return _burnCounter;
    }

    // =============================================================
    //                    ADDRESS DATA OPERATIONS
    // =============================================================

    /**
     * @dev Returns the number of tokens in `owner`'s account.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the number of tokens burned by or on behalf of `owner`.
     */
    function _numberBurned(address owner) internal view returns (uint256) {
        return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
     */
    function _getAux(address owner) internal view returns (uint64) {
        return uint64(_packedAddressData[owner] >> _BITPOS_AUX);
    }

    /**
     * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
     * If there are multiple variables, please pack them into a uint64.
     */
    function _setAux(address owner, uint64 aux) internal virtual {
        uint256 packed = _packedAddressData[owner];
        uint256 auxCasted;
        // Cast `aux` with assembly to avoid redundant masking.
        assembly {
            auxCasted := aux
        }
        packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
        _packedAddressData[owner] = packed;
    }

    // =============================================================
    //                            IERC165
    // =============================================================

    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30000 gas.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        // The interface IDs are constants representing the first 4 bytes
        // of the XOR of all function selectors in the interface.
        // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
        // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
        return
            interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
            interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
            interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
    }

    // =============================================================
    //                        IERC721Metadata
    // =============================================================

    /**
     * @dev Returns the token collection name.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

        string memory baseURI = _baseURI();
        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, it can be overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return '';
    }

    // =============================================================
    //                     OWNERSHIPS OPERATIONS
    // =============================================================

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        return address(uint160(_packedOwnershipOf(tokenId)));
    }

    /**
     * @dev Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around over time.
     */
    function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
        return _unpackedOwnership(_packedOwnershipOf(tokenId));
    }

    /**
     * @dev Returns the unpacked `TokenOwnership` struct at `index`.
     */
    function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
        return _unpackedOwnership(_packedOwnerships[index]);
    }

    /**
     * @dev Initializes the ownership slot minted at `index` for efficiency purposes.
     */
    function _initializeOwnershipAt(uint256 index) internal virtual {
        if (_packedOwnerships[index] == 0) {
            _packedOwnerships[index] = _packedOwnershipOf(index);
        }
    }

    /**
     * Returns the packed ownership data of `tokenId`.
     */
    function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) {
        uint256 curr = tokenId;

        unchecked {
            if (_startTokenId() <= curr)
                if (curr < _currentIndex) {
                    uint256 packed = _packedOwnerships[curr];
                    // If not burned.
                    if (packed & _BITMASK_BURNED == 0) {
                        // Invariant:
                        // There will always be an initialized ownership slot
                        // (i.e. `ownership.addr != address(0) && ownership.burned == false`)
                        // before an unintialized ownership slot
                        // (i.e. `ownership.addr == address(0) && ownership.burned == false`)
                        // Hence, `curr` will not underflow.
                        //
                        // We can directly compare the packed value.
                        // If the address is zero, packed will be zero.
                        while (packed == 0) {
                            packed = _packedOwnerships[--curr];
                        }
                        return packed;
                    }
                }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * @dev Returns the unpacked `TokenOwnership` struct from `packed`.
     */
    function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
        ownership.addr = address(uint160(packed));
        ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
        ownership.burned = packed & _BITMASK_BURNED != 0;
        ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
    }

    /**
     * @dev Packs ownership data into a single uint256.
     */
    function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
        assembly {
            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
            owner := and(owner, _BITMASK_ADDRESS)
            // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
            result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
        }
    }

    /**
     * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
     */
    function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
        // For branchless setting of the `nextInitialized` flag.
        assembly {
            // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
            result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
        }
    }

    // =============================================================
    //                      APPROVAL OPERATIONS
    // =============================================================

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the
     * zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) public payable virtual override {
        address owner = ownerOf(tokenId);

        if (_msgSenderERC721A() != owner)
            if (!isApprovedForAll(owner, _msgSenderERC721A())) {
                revert ApprovalCallerNotOwnerNorApproved();
            }

        _tokenApprovals[tokenId].value = to;
        emit Approval(owner, to, tokenId);
    }

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId].value;
    }

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom}
     * for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _operatorApprovals[_msgSenderERC721A()][operator] = approved;
        emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
    }

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted. See {_mint}.
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return
            _startTokenId() <= tokenId &&
            tokenId < _currentIndex && // If within bounds,
            _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.
    }

    /**
     * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
     */
    function _isSenderApprovedOrOwner(
        address approvedAddress,
        address owner,
        address msgSender
    ) private pure returns (bool result) {
        assembly {
            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
            owner := and(owner, _BITMASK_ADDRESS)
            // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
            msgSender := and(msgSender, _BITMASK_ADDRESS)
            // `msgSender == owner || msgSender == approvedAddress`.
            result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
        }
    }

    /**
     * @dev Returns the storage slot and value for the approved address of `tokenId`.
     */
    function _getApprovedSlotAndAddress(uint256 tokenId)
        private
        view
        returns (uint256 approvedAddressSlot, address approvedAddress)
    {
        TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
        // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.
        assembly {
            approvedAddressSlot := tokenApproval.slot
            approvedAddress := sload(approvedAddressSlot)
        }
    }

    // =============================================================
    //                      TRANSFER OPERATIONS
    // =============================================================

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token
     * by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public payable virtual override {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

        if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner();

        (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);

        // The nested ifs save around 20+ gas over a compound boolean condition.
        if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
            if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();

        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

        // Clear approvals from the previous owner.
        assembly {
            if approvedAddress {
                // This is equivalent to `delete _tokenApprovals[tokenId]`.
                sstore(approvedAddressSlot, 0)
            }
        }

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
        unchecked {
            // We can directly increment and decrement the balances.
            --_packedAddressData[from]; // Updates: `balance -= 1`.
            ++_packedAddressData[to]; // Updates: `balance += 1`.

            // Updates:
            // - `address` to the next owner.
            // - `startTimestamp` to the timestamp of transfering.
            // - `burned` to `false`.
            // - `nextInitialized` to `true`.
            _packedOwnerships[tokenId] = _packOwnershipData(
                to,
                _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
            );

            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                // If the next slot's address is zero and not burned (i.e. packed value is zero).
                if (_packedOwnerships[nextTokenId] == 0) {
                    // If the next slot is within bounds.
                    if (nextTokenId != _currentIndex) {
                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }

        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public payable virtual override {
        safeTransferFrom(from, to, tokenId, '');
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token
     * by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement
     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public payable virtual override {
        transferFrom(from, to, tokenId);
        if (to.code.length != 0)
            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                revert TransferToNonERC721ReceiverImplementer();
            }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token IDs
     * are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * `startTokenId` - the first token ID to be transferred.
     * `quantity` - the amount to be transferred.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token IDs
     * have been transferred. This includes minting.
     * And also called after one token has been burned.
     *
     * `startTokenId` - the first token ID to be transferred.
     * `quantity` - the amount to be transferred.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * `from` - Previous owner of the given token ID.
     * `to` - Target address that will receive the token.
     * `tokenId` - Token ID to be transferred.
     * `_data` - Optional data to send along with the call.
     *
     * Returns whether the call correctly returned the expected magic value.
     */
    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (
            bytes4 retval
        ) {
            return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    // =============================================================
    //                        MINT OPERATIONS
    // =============================================================

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event for each mint.
     */
    function _mint(address to, uint256 quantity) internal virtual {
        uint256 startTokenId = _currentIndex;
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // `balance` and `numberMinted` have a maximum limit of 2**64.
        // `tokenId` has a maximum limit of 2**256.
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the `balance` and `numberMinted`.
            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);

            // Updates:
            // - `address` to the owner.
            // - `startTimestamp` to the timestamp of minting.
            // - `burned` to `false`.
            // - `nextInitialized` to `quantity == 1`.
            _packedOwnerships[startTokenId] = _packOwnershipData(
                to,
                _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
            );

            uint256 toMasked;
            uint256 end = startTokenId + quantity;

            // Use assembly to loop and emit the `Transfer` event for gas savings.
            // The duplicated `log4` removes an extra check and reduces stack juggling.
            // The assembly, together with the surrounding Solidity code, have been
            // delicately arranged to nudge the compiler into producing optimized opcodes.
            assembly {
                // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
                toMasked := and(to, _BITMASK_ADDRESS)
                // Emit the `Transfer` event.
                log4(
                    0, // Start of data (0, since no data).
                    0, // End of data (0, since no data).
                    _TRANSFER_EVENT_SIGNATURE, // Signature.
                    0, // `address(0)`.
                    toMasked, // `to`.
                    startTokenId // `tokenId`.
                )

                // The `iszero(eq(,))` check ensures that large values of `quantity`
                // that overflows uint256 will make the loop run out of gas.
                // The compiler will optimize the `iszero` away for performance.
                for {
                    let tokenId := add(startTokenId, 1)
                } iszero(eq(tokenId, end)) {
                    tokenId := add(tokenId, 1)
                } {
                    // Emit the `Transfer` event. Similar to above.
                    log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)
                }
            }
            if (toMasked == 0) revert MintToZeroAddress();

            _currentIndex = end;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * This function is intended for efficient minting only during contract creation.
     *
     * It emits only one {ConsecutiveTransfer} as defined in
     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),
     * instead of a sequence of {Transfer} event(s).
     *
     * Calling this function outside of contract creation WILL make your contract
     * non-compliant with the ERC721 standard.
     * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309
     * {ConsecutiveTransfer} event is only permissible during contract creation.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {ConsecutiveTransfer} event.
     */
    function _mintERC2309(address to, uint256 quantity) internal virtual {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();
        if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are unrealistic due to the above check for `quantity` to be below the limit.
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the `balance` and `numberMinted`.
            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);

            // Updates:
            // - `address` to the owner.
            // - `startTimestamp` to the timestamp of minting.
            // - `burned` to `false`.
            // - `nextInitialized` to `quantity == 1`.
            _packedOwnerships[startTokenId] = _packOwnershipData(
                to,
                _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
            );

            emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);

            _currentIndex = startTokenId + quantity;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement
     * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * See {_mint}.
     *
     * Emits a {Transfer} event for each mint.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal virtual {
        _mint(to, quantity);

        unchecked {
            if (to.code.length != 0) {
                uint256 end = _currentIndex;
                uint256 index = end - quantity;
                do {
                    if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (index < end);
                // Reentrancy protection.
                if (_currentIndex != end) revert();
            }
        }
    }

    /**
     * @dev Equivalent to `_safeMint(to, quantity, '')`.
     */
    function _safeMint(address to, uint256 quantity) internal virtual {
        _safeMint(to, quantity, '');
    }

    // =============================================================
    //                        BURN OPERATIONS
    // =============================================================

    /**
     * @dev Equivalent to `_burn(tokenId, false)`.
     */
    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

        address from = address(uint160(prevOwnershipPacked));

        (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);

        if (approvalCheck) {
            // The nested ifs save around 20+ gas over a compound boolean condition.
            if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
                if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();
        }

        _beforeTokenTransfers(from, address(0), tokenId, 1);

        // Clear approvals from the previous owner.
        assembly {
            if approvedAddress {
                // This is equivalent to `delete _tokenApprovals[tokenId]`.
                sstore(approvedAddressSlot, 0)
            }
        }

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
        unchecked {
            // Updates:
            // - `balance -= 1`.
            // - `numberBurned += 1`.
            //
            // We can directly decrement the balance, and increment the number burned.
            // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
            _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;

            // Updates:
            // - `address` to the last owner.
            // - `startTimestamp` to the timestamp of burning.
            // - `burned` to `true`.
            // - `nextInitialized` to `true`.
            _packedOwnerships[tokenId] = _packOwnershipData(
                from,
                (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
            );

            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                // If the next slot's address is zero and not burned (i.e. packed value is zero).
                if (_packedOwnerships[nextTokenId] == 0) {
                    // If the next slot is within bounds.
                    if (nextTokenId != _currentIndex) {
                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }

        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked {
            _burnCounter++;
        }
    }

    // =============================================================
    //                     EXTRA DATA OPERATIONS
    // =============================================================

    /**
     * @dev Directly sets the extra data for the ownership data `index`.
     */
    function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
        uint256 packed = _packedOwnerships[index];
        if (packed == 0) revert OwnershipNotInitializedForExtraData();
        uint256 extraDataCasted;
        // Cast `extraData` with assembly to avoid redundant masking.
        assembly {
            extraDataCasted := extraData
        }
        packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
        _packedOwnerships[index] = packed;
    }

    /**
     * @dev Called during each token transfer to set the 24bit `extraData` field.
     * Intended to be overridden by the cosumer contract.
     *
     * `previousExtraData` - the value of `extraData` before transfer.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _extraData(
        address from,
        address to,
        uint24 previousExtraData
    ) internal view virtual returns (uint24) {}

    /**
     * @dev Returns the next extra data for the packed ownership data.
     * The returned result is shifted into position.
     */
    function _nextExtraData(
        address from,
        address to,
        uint256 prevOwnershipPacked
    ) private view returns (uint256) {
        uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
        return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
    }

    // =============================================================
    //                       OTHER OPERATIONS
    // =============================================================

    /**
     * @dev Returns the message sender (defaults to `msg.sender`).
     *
     * If you are writing GSN compatible contracts, you need to override this function.
     */
    function _msgSenderERC721A() internal view virtual returns (address) {
        return msg.sender;
    }

    /**
     * @dev Converts a uint256 to its ASCII string decimal representation.
     */
    function _toString(uint256 value) internal pure virtual returns (string memory str) {
        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. Total: 5 * 0x20 = 0xa0.
            let m := add(mload(0x40), 0xa0)
            // Update the free memory pointer to allocate.
            mstore(0x40, m)
            // Assign the `str` to the end.
            str := sub(m, 0x20)
            // Zeroize the slot after the string.
            mstore(str, 0)

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

            // We write the string from rightmost digit to leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            // prettier-ignore
            for { let temp := value } 1 {} {
                str := 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)
                // prettier-ignore
                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)
        }
    }
}

// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.2.3
// Creator: Chiru Labs

pragma solidity ^0.8.4;

/**
 * @dev Interface of ERC721A.
 */
interface IERC721A {
    /**
     * The caller must own the token or be an approved operator.
     */
    error ApprovalCallerNotOwnerNorApproved();

    /**
     * The token does not exist.
     */
    error ApprovalQueryForNonexistentToken();

    /**
     * Cannot query the balance for the zero address.
     */
    error BalanceQueryForZeroAddress();

    /**
     * Cannot mint to the zero address.
     */
    error MintToZeroAddress();

    /**
     * The quantity of tokens minted must be more than zero.
     */
    error MintZeroQuantity();

    /**
     * The token does not exist.
     */
    error OwnerQueryForNonexistentToken();

    /**
     * The caller must own the token or be an approved operator.
     */
    error TransferCallerNotOwnerNorApproved();

    /**
     * The token must be owned by `from`.
     */
    error TransferFromIncorrectOwner();

    /**
     * Cannot safely transfer to a contract that does not implement the
     * ERC721Receiver interface.
     */
    error TransferToNonERC721ReceiverImplementer();

    /**
     * Cannot transfer to the zero address.
     */
    error TransferToZeroAddress();

    /**
     * The token does not exist.
     */
    error URIQueryForNonexistentToken();

    /**
     * The `quantity` minted with ERC2309 exceeds the safety limit.
     */
    error MintERC2309QuantityExceedsLimit();

    /**
     * The `extraData` cannot be set on an unintialized ownership slot.
     */
    error OwnershipNotInitializedForExtraData();

    // =============================================================
    //                            STRUCTS
    // =============================================================

    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Stores the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
        // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
        uint24 extraData;
    }

    // =============================================================
    //                         TOKEN COUNTERS
    // =============================================================

    /**
     * @dev Returns the total number of tokens in existence.
     * Burned tokens will reduce the count.
     * To get the total number of tokens minted, please see {_totalMinted}.
     */
    function totalSupply() external view returns (uint256);

    // =============================================================
    //                            IERC165
    // =============================================================

    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);

    // =============================================================
    //                            IERC721
    // =============================================================

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

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables
     * (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in `owner`'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`,
     * checking first that contract recipients are aware of the ERC721 protocol
     * to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move
     * this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement
     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external payable;

    /**
     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external payable;

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom}
     * whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token
     * by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external payable;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the
     * zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external payable;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom}
     * for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    // =============================================================
    //                        IERC721Metadata
    // =============================================================

    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);

    // =============================================================
    //                           IERC2309
    // =============================================================

    /**
     * @dev Emitted when tokens in `fromTokenId` to `toTokenId`
     * (inclusive) is transferred from `from` to `to`, as defined in the
     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
     *
     * See {_mintERC2309} for more details.
     */
    event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"payable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintERC2309QuantityExceedsLimit","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"OwnershipNotInitializedForExtraData","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toTokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"ConsecutiveTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"cost","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"freeMintMax","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"freeMintSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPerTx","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPerWallet","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"mintTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"numberMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"sale","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_newURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_cost","type":"uint256"}],"name":"setCost","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newMax","type":"uint256"}],"name":"setMaxPerTx","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newMax","type":"uint256"}],"name":"setMaxPerWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newSupply","type":"uint256"}],"name":"setSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"_toggle","type":"bool"}],"name":"toggleSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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