Token

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
// 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.selector);
        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.selector);

        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 Returns whether the ownership slot at `index` is initialized.
     * An uninitialized slot does not necessarily mean that the slot has no owner.
     */
    function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) {
        return _packedOwnerships[index] != 0;
    }

    /**
     * @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 packed) {
        if (_startTokenId() <= tokenId) {
            packed = _packedOwnerships[tokenId];
            // If the data at the starting slot does not exist, start the scan.
            if (packed == 0) {
                if (tokenId >= _currentIndex) _revert(OwnerQueryForNonexistentToken.selector);
                // 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, `tokenId` will not underflow.
                //
                // We can directly compare the packed value.
                // If the address is zero, packed will be zero.
                for (;;) {
                    unchecked {
                        packed = _packedOwnerships[--tokenId];
                    }
                    if (packed == 0) continue;
                    if (packed & _BITMASK_BURNED == 0) return packed;
                    // Otherwise, the token is burned, and we must revert.
                    // This handles the case of batch burned tokens, where only the burned bit
                    // of the starting slot is set, and remaining slots are left uninitialized.
                    _revert(OwnerQueryForNonexistentToken.selector);
                }
            }
            // Otherwise, the data exists and we can skip the scan.
            // This is possible because we have already achieved the target condition.
            // This saves 2143 gas on transfers of initialized tokens.
            // If the token is not burned, return `packed`. Otherwise, revert.
            if (packed & _BITMASK_BURNED == 0) return packed;
        }
        _revert(OwnerQueryForNonexistentToken.selector);
    }

    /**
     * @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. See {ERC721A-_approve}.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     */
    function approve(address to, uint256 tokenId) public payable virtual override {
        _approve(to, tokenId, true);
    }

    /**
     * @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.selector);

        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 result) {
        if (_startTokenId() <= tokenId) {
            if (tokenId < _currentIndex) {
                uint256 packed;
                while ((packed = _packedOwnerships[tokenId]) == 0) --tokenId;
                result = packed & _BITMASK_BURNED == 0;
            }
        }
    }

    /**
     * @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);

        // Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean.
        from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));

        if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector);

        (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.selector);

        _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;
                    }
                }
            }
        }

        // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
        uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
        assembly {
            // 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.
                from, // `from`.
                toMasked, // `to`.
                tokenId // `tokenId`.
            )
        }
        if (toMasked == 0) _revert(TransferToZeroAddress.selector);

        _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.selector);
            }
    }

    /**
     * @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.selector);
            }
            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.selector);

        _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:
            // - `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)
            );

            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the `balance` and `numberMinted`.
            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);

            // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
            uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;

            if (toMasked == 0) _revert(MintToZeroAddress.selector);

            uint256 end = startTokenId + quantity;
            uint256 tokenId = startTokenId;

            do {
                assembly {
                    // 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`.
                        tokenId // `tokenId`.
                    )
                }
                // The `!=` check ensures that large values of `quantity`
                // that overflows uint256 will make the loop run out of gas.
            } while (++tokenId != end);

            _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.selector);
        if (quantity == 0) _revert(MintZeroQuantity.selector);
        if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) _revert(MintERC2309QuantityExceedsLimit.selector);

        _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.selector);
                    }
                } while (index < end);
                // Reentrancy protection.
                if (_currentIndex != end) _revert(bytes4(0));
            }
        }
    }

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

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

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

    /**
     * @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:
     *
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function _approve(
        address to,
        uint256 tokenId,
        bool approvalCheck
    ) internal virtual {
        address owner = ownerOf(tokenId);

        if (approvalCheck && _msgSenderERC721A() != owner)
            if (!isApprovedForAll(owner, _msgSenderERC721A())) {
                _revert(ApprovalCallerNotOwnerNorApproved.selector);
            }

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

    // =============================================================
    //                        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.selector);
        }

        _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.selector);
        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)
        }
    }

    /**
     * @dev For more efficient reverts.
     */
    function _revert(bytes4 errorSelector) internal pure {
        assembly {
            mstore(0x00, errorSelector)
            revert(0x00, 0x04)
        }
    }
}

// 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);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.4;

// REI
// FROM BELONGING DATA SYSTEMS MANAGEMENT CORPORATION
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNo...''''..'''',,,,,,,,;;:ccllllc:;;;::;;;;;;;::::::;::;;::;,,,,,',,,'',,'''...;0MMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM0;...''....'''',,,,,,,,;;;:cllllc;;clc::::ccllllollc:c:,,;;,;,,,,'',,''''','....oNMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWx'..''....''''',''',,,,,;;;::c:;;;clc:clooooooooool:;:;,,;;,,,,,,,',,,'''',''...:KMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNo...'.....''''''''',,,,,;;;;;;,,;:c:;:coooooooooll:;;;::;;;;,,,,,,'',,,'''','...,kMMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMK:..''....'''''''''',,,,,,;;;,,,;;;;;;:cllllllllc:;;,,:lc;;,,,,,,''''',,'''',''...oWMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMO,..'.....'''''''''',,,,,;;;,,,;;,,,;;;::::cc:::;;,,,;lxc,;,,,,,'''''',,,'''','...cXMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMk'.''.....''''''''''',,,,;;;,,;,,,;;;;;;;;;;;;;,,,,,;ckx:,,,,,,,''''''',''''''''..:KMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWx'.''....''''''''''',,,,,,,,,,,,,;;;;;;;;;;;;;;;,,,;:xKd;,,,,,,'''''.'''''''''''..,kMMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWd''''....'''''''''',,,,,,,,,,,,;;;;;;;;;;;;;;;;;;:;;oKKo,,,,,,'''''..'''''''''''..'oNMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNo.''''..'''''''''',,,,,,,,,,,,,,,;;;;;;;;;;;;;:c:;;lkKkc,,,,,,'''''.''''''''''''.'.cXMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNl.''''..''''''''',,,,,,,,,,,,;;;;;;;:::::::::llc::oxOkl;,,,,,,,,'''.'''''''''','''':0MMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNl'''''.'''''''''',,,,,;;;,,;;;;:::::::::::coddcclkKNNOc;;;;,,:c;,''.'''''''''','''.,OMMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNl''''..''''''',,,,,,;;;;;;;;;;::::cc:::clokkdlokKNWN0o:;;;;:oko;,'','''''''''','''..xWMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNo''''..'''''',,,,,;;;;;:::;;;:coooollodk0K0kk0XNNWN0dloolldOKkcc:;cc;,,''''''','''..oNMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWx,'''..'''''',,,,,;;;;,;c;',cdkO0OkO0XNWWNNNNWWWWNX0kO00OO00koodoxkl;,,,'''''',''',,oNMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWk,'''..''''',,,,,,,''.......',cdkOXNNNWWWWWWWWWWNNNX0xl:;,,,''''';::;,,,''',,,,''';coXMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMk,''''.'''',,,,,,,,,,,'..';,'..;co0NNWWWWWWWWWWWWWN0d;...','.,;:;,..',''''',,,,''':loKMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMO;'''''''',,,,;;;;;:loc;:c:;:::xKKKXNWWWWWWWWWWWWWXK0o;:;;c:;:xKKx:,;;,''',,,,,,,'colKMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMO;'''''''',,,,;;;;:lkK0ddxxxkdd0NNNWWWWWWWWWWWWWWWNNNOodxdxxodKNX0o::c;''',,,,,,,'col0MMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM0;.''''',,,,,,;;;;lkKKK0kO00000XNNNNNWWWWWWWWWWWWWNNNKOO00Okk0XKKkc:dkc''',,,,,'''cocOMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM0:.''''',,,,,,,;:lx0XXXXXXXXXNNNNNNNNNWWWWWWWWWWWWNNNNNNXXXXXXXXOook0x;''',,,,,'''ld:OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMK:.'''',,,,,,,';d000XXXXXXXXNNNNNNNNNNWWWWWWWWWWWWNNNNNNXXXXXXX0kkK0o;'''',,,,,'''ox:OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMKc.'',,,,,,,''..:kK0KXXXXNNNNNNNNNNNNWWWWWWWWWWWWWNNNNNNNXXNNXXKO0O:''','',,,,,'''ox:OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMWMMMMMMMMMMMMMMMMMMMW0c'',,,,,,'''''..,ok0XNNNNNNNNNNNNNWWWWWWWWNWWWWWWNNNNNNNNNNNNX0kd,..''''',,,,''''dk:OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMNKNWMMMMMMMMMNNWMMMMMWXOo;,,',,''..''''....;lONNNNNNNNNNNWWWWWWWWWNNWWWWWWWWNNNNNNNNNNKo;....''''',,,,'','ox:OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMM0ONMMMMMMMMMNO0MMMMNKOdc;,,,,''....''''..,;:cxKNNNNWWWWWWWWWWWWWWWWWWWWWWWWWWWWNNWNNNXx;'....''''.',,,'',':l:OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMNKXWMMMMMMMMNxxWWX0xoc;,,'''.......''',lkKNWWNKKNNWWWWWWWWWWWWWWWNNNNWWWWWWWWWWWWWWNX0KXX0ko;''''.',,''','',;OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMWNXKKKXXNNNXxldxoc:;,,:;''.......''':kNMMMNNWWXKXNWWWWWWWWWWWNXKXKKKKXNWWWWWWWWWNXKKNWWWMMWKo,''.',,''','..;OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMWXKK00OOkxc;;;:ldk00l'.......''';xWMMNXkx0XWNXKXNWWWWWWWWWNNNNNNNNNNWWWWWWWNXKKXNNK0KNWMMXo,'..',''','..,OMMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWWNk:'';clooc,..''''''''';OMMWXO:,dKNMMXxokXNWWWWWWWWWWWWWWWWWWWWNN0xkXWWNKo,l0NWMWx,''.'''.','..'xWMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWXkoc::c:,'''''''''''',dNMMWX0OKNMMM0:.'ck0KXNWWWWWWWWWWWWWNNKxc,.oNMMWXOdkKNMMNo,''.''''','...:KMMMMMMMMMMMMMMMMMMMM
// MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMWNXKXk;''',''''''''':OWMMMWWWMMMNo'..'okxkKNWWWWWWWWWWWNXOo,...;OMMWWNXNWWMM0:''''''''','...'dWMMMMMMMMMMMMMMMMMMM

import {ERC721A} from "./utils/ERC721A.sol";

contract Waifu is ERC721A {
    uint256 public constant MAX_SUPPLY = 999;

    address Minter;

    string public baseUri;

    address public owner;

    modifier onlyOwner() {
        require(msg.sender == owner, "Not Owner");
        _;
    }

    function changeOwner(address _owner) external onlyOwner() {
        owner = _owner;
    }

    constructor(address _minter, address _devMint) ERC721A("Wife Material", "WIFE") {
        Minter = _minter;
        owner = payable(msg.sender);
        _mintERC2309(_devMint, 19);
    }

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

    function setBaseUri(string calldata newBaseUri) external onlyOwner() {
        baseUri = newBaseUri;
    }

    function mint(address mintReceiver, uint256 amount) external {
        require(address(msg.sender) == Minter, "Not Minter");
        require(totalSupply() + amount <= MAX_SUPPLY, "Max Minted");

        _mint(mintReceiver, amount);
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_minter","type":"address"},{"internalType":"address","name":"_devMint","type":"address"}],"stateMutability":"nonpayable","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":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"MAX_SUPPLY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"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":[{"internalType":"address","name":"_owner","type":"address"}],"name":"changeOwner","outputs":[],"stateMutability":"nonpayable","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":[{"internalType":"address","name":"mintReceiver","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"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":[{"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":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newBaseUri","type":"string"}],"name":"setBaseUri","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":"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"}]

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

0000000000000000000000007774a6e71c2587cccb44577a1498132a0348d90f0000000000000000000000005257490df6b880dec9f5f5418a453837ed295b74

-----Decoded View---------------
Arg [0] : _minter (address): 0x7774a6e71c2587Cccb44577A1498132a0348d90f
Arg [1] : _devMint (address): 0x5257490df6b880dEC9f5F5418a453837eD295b74

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000007774a6e71c2587cccb44577a1498132a0348d90f
Arg [1] : 0000000000000000000000005257490df6b880dec9f5f5418a453837ed295b74