Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

pragma solidity ^0.8.0;

import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import "erc721a/contracts/ERC721A.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";

contract Infinite is ERC721A, Ownable {
    using ECDSA for bytes32;

    address signer;
    uint256 public totalClaimed;
    mapping(address => bool) public claimed;
    uint256 public constant MAX_SUPPLY = 5000;
    string public baseUrl;

    error HadClaimed();
    error OutofMaxSupply();
    error InvalidSignarure();

    constructor(
        string memory _name,
        string memory _symbol,
        address signer_,
        string memory _baseUrl
    ) ERC721A(_name, _symbol) {
        baseUrl = _baseUrl;
        signer = signer_;
        _safeMint(msg.sender, 1);
        totalClaimed++;
    }

    function totalSupply() public view override returns (uint256) {
        unchecked {
            return super.totalSupply() - balanceOf(address(0xdead));
        }
    }

    function claim() external {
        if (claimed[msg.sender]) revert HadClaimed();
        if (!(totalClaimed < MAX_SUPPLY)) revert HadClaimed();
        _safeMint(msg.sender, 1);
        claimed[msg.sender] = true;
        totalClaimed++;
    }

    function burn(
        uint256 tokenId,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external {
        if (keccak256(abi.encodePacked(msg.sender, tokenId)).toEthSignedMessageHash().recover(v, r, s) != signer) {
            revert InvalidSignarure();
        }
        _burn(tokenId);
    }

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

    function batchBurn(uint256[] memory tokenids) external onlyOwner {
        uint256 len = tokenids.length;
        for (uint256 i; i < len; i++) {
            uint256 tokenid = tokenids[i];
            _burn(tokenid);
        }
    }

    function setBaseURI(string memory url) external onlyOwner {
        baseUrl = url;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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 Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        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
// ERC721A Contracts v4.0.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import './IERC721A.sol';

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

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is IERC721A {
    // 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 tokenId of the next token 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`
    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 => address) private _tokenApprovals;

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

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

    /**
     * @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 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 virtual view 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 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 returns (uint256) {
        return _burnCounter;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    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: 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.
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view 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 auxillary 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 auxillary 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 {
        uint256 packed = _packedAddressData[owner];
        uint256 auxCasted;
        assembly { // Cast aux without masking.
            auxCasted := aux
        }
        packed = (packed & BITMASK_AUX_COMPLEMENT) | (auxCasted << BITPOS_AUX);
        _packedAddressData[owner] = packed;
    }

    /**
     * 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 ownership that has an address and is not burned
                        // before an ownership that does not have an address and is not burned.
                        // Hence, curr will not underflow.
                        //
                        // We can directly compare the packed value.
                        // If the address is zero, packed is zero.
                        while (packed == 0) {
                            packed = _packedOwnerships[--curr];
                        }
                        return packed;
                    }
                }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * 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;
    }

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

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

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

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return address(uint160(_packedOwnershipOf(tokenId)));
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    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, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return '';
    }

    /**
     * @dev Casts the address to uint256 without masking.
     */
    function _addressToUint256(address value) private pure returns (uint256 result) {
        assembly {
            result := value
        }
    }

    /**
     * @dev Casts the boolean to uint256 without branching.
     */
    function _boolToUint256(bool value) private pure returns (uint256 result) {
        assembly {
            result := value
        }
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public override {
        address owner = address(uint160(_packedOwnershipOf(tokenId)));
        if (to == owner) revert ApprovalToCurrentOwner();

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

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

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        if (operator == _msgSenderERC721A()) revert ApproveToCaller();

        _operatorApprovals[_msgSenderERC721A()][operator] = approved;
        emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, '');
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        _transfer(from, to, tokenId);
        if (to.code.length != 0)
            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                revert TransferToNonERC721ReceiverImplementer();
            }
    }

    /**
     * @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 (`_mint`),
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        return
            _startTokenId() <= tokenId &&
            tokenId < _currentIndex && // If within bounds,
            _packedOwnerships[tokenId] & BITMASK_BURNED == 0; // and not burned.
    }

    /**
     * @dev Equivalent to `_safeMint(to, quantity, '')`.
     */
    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, 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.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

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

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the balance and number minted.
            _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] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                (_boolToUint256(quantity == 1) << BITPOS_NEXT_INITIALIZED);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            if (to.code.length != 0) {
                do {
                    emit Transfer(address(0), to, updatedIndex);
                    if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (updatedIndex < end);
                // Reentrancy protection
                if (_currentIndex != startTokenId) revert();
            } else {
                do {
                    emit Transfer(address(0), to, updatedIndex++);
                } while (updatedIndex < end);
            }
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @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.
     */
    function _mint(address to, uint256 quantity) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

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

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the balance and number minted.
            _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] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                (_boolToUint256(quantity == 1) << BITPOS_NEXT_INITIALIZED);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            do {
                emit Transfer(address(0), to, updatedIndex++);
            } while (updatedIndex < end);

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

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
          address from,
          address to,
          uint256 tokenId
  ) internal {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

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

        bool isApprovedOrOwner = (_msgSenderERC721A() == from ||
            isApprovedForAll(from, _msgSenderERC721A()) ||
            getApproved(tokenId) == _msgSenderERC721A());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

        // Clear approvals from the previous owner.
        delete _tokenApprovals[tokenId];

        // 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] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                BITMASK_NEXT_INITIALIZED;

            // 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 `_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));

        if (approvalCheck) {
            bool isApprovedOrOwner = (_msgSenderERC721A() == from ||
                isApprovedForAll(from, _msgSenderERC721A()) ||
                getApproved(tokenId) == _msgSenderERC721A());

            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        }

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

        // Clear approvals from the previous owner.
        delete _tokenApprovals[tokenId];

        // 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] =
                _addressToUint256(from) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                BITMASK_BURNED | 
                BITMASK_NEXT_INITIALIZED;

            // 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++;
        }
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool 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))
                }
            }
        }
    }

    /**
     * @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 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 returns (string memory ptr) {
        assembly {
            // The maximum value of a uint256 contains 78 digits (1 byte per digit), 
            // but we allocate 128 bytes to keep the free memory pointer 32-byte word aliged.
            // We will need 1 32-byte word to store the length, 
            // and 3 32-byte words to store a maximum of 78 digits. Total: 32 + 3 * 32 = 128.
            ptr := add(mload(0x40), 128)
            // Update the free memory pointer to allocate.
            mstore(0x40, ptr)

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

            // We write the string from the rightmost digit to the leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            // Costs a bit more than early returning for the zero case,
            // but cheaper in terms of deployment and overall runtime costs.
            for { 
                // Initialize and perform the first pass without check.
                let temp := value
                // Move the pointer 1 byte leftwards to point to an empty character slot.
                ptr := sub(ptr, 1)
                // Write the character to the pointer. 48 is the ASCII index of '0'.
                mstore8(ptr, add(48, mod(temp, 10)))
                temp := div(temp, 10)
            } temp { 
                // Keep dividing `temp` until zero.
                temp := div(temp, 10)
            } { // Body of the for loop.
                ptr := sub(ptr, 1)
                mstore8(ptr, add(48, mod(temp, 10)))
            }
            
            let length := sub(end, ptr)
            // Move the pointer 32 bytes leftwards to make room for the length.
            ptr := sub(ptr, 32)
            // Store the length.
            mstore(ptr, length)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        } else if (error == RecoverError.InvalidSignatureV) {
            revert("ECDSA: invalid signature 'v' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else if (signature.length == 64) {
            bytes32 r;
            bytes32 vs;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                vs := mload(add(signature, 0x40))
            }
            return tryRecover(hash, r, vs);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s;
        uint8 v;
        assembly {
            s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
            v := add(shr(255, vs), 27)
        }
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }
        if (v != 27 && v != 28) {
            return (address(0), RecoverError.InvalidSignatureV);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (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 v4.0.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

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

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

    /**
     * The caller cannot approve to their own address.
     */
    error ApproveToCaller();

    /**
     * The caller cannot approve to the current owner.
     */
    error ApprovalToCurrentOwner();

    /**
     * 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();

    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Keeps track of the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
    }

    /**
     * @dev Returns the total amount of tokens stored by the contract.
     *
     * Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 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`.
     *
     * 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 calldata data
    ) external;

    /**
     * @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
    ) external;

    /**
     * @dev Transfers `tokenId` token 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;

    /**
     * @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;

    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"address","name":"signer_","type":"address"},{"internalType":"string","name":"_baseUrl","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"HadClaimed","type":"error"},{"inputs":[],"name":"InvalidSignarure","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OutofMaxSupply","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","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":"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":[],"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":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseUrl","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenids","type":"uint256[]"}],"name":"batchBurn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":"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":[],"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":"nonpayable","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":"nonpayable","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":"url","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":"totalClaimed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0x608060405234801561001057600080fd5b50600436106101a35760003560e01c806370a08231116100ee578063c87b56dd11610097578063dc8e92ea11610071578063dc8e92ea14610339578063e985e9c51461034c578063f2fde38b14610388578063fcc82dc21461039b57600080fd5b8063c87b56dd146102fa578063c884ef831461030d578063d54ad2a11461033057600080fd5b806395d89b41116100c857806395d89b41146102cc578063a22cb465146102d4578063b88d4fde146102e757600080fd5b806370a08231146102a0578063715018a6146102b35780638da5cb5b146102bb57600080fd5b806332cb6b0c1161015057806355f804b31161012a57806355f804b3146102725780635bcabf04146102855780636352211e1461028d57600080fd5b806332cb6b0c1461024e57806342842e0e146102575780634e71d92d1461026a57600080fd5b8063095ea7b311610181578063095ea7b31461021057806318160ddd1461022557806323b872dd1461023b57600080fd5b806301ffc9a7146101a857806306fdde03146101d0578063081812fc146101e5575b600080fd5b6101bb6101b63660046119c9565b6103ae565b60405190151581526020015b60405180910390f35b6101d8610493565b6040516101c79190611a3e565b6101f86101f3366004611a51565b610525565b6040516001600160a01b0390911681526020016101c7565b61022361021e366004611a86565b610582565b005b61022d610694565b6040519081526020016101c7565b610223610249366004611ab0565b6106ae565b61022d61138881565b610223610265366004611ab0565b6106be565b6102236106d9565b610223610280366004611b8b565b61079a565b6101d8610810565b6101f861029b366004611a51565b61089e565b61022d6102ae366004611bd4565b6108a9565b610223610911565b6008546001600160a01b03166101f8565b6101d8610977565b6102236102e2366004611bef565b610986565b6102236102f5366004611c2b565b610a35565b6101d8610308366004611a51565b610a7f565b6101bb61031b366004611bd4565b600b6020526000908152604090205460ff1681565b61022d600a5481565b610223610347366004611ca7565b610b1d565b6101bb61035a366004611d4d565b6001600160a01b03918216600090815260076020908152604080832093909416825291909152205460ff1690565b610223610396366004611bd4565b610bbe565b6102236103a9366004611d80565b610ca0565b60007f01ffc9a7000000000000000000000000000000000000000000000000000000007fffffffff000000000000000000000000000000000000000000000000000000008316148061044157507f80ac58cd000000000000000000000000000000000000000000000000000000007fffffffff000000000000000000000000000000000000000000000000000000008316145b8061048d57507f5b5e139f000000000000000000000000000000000000000000000000000000007fffffffff000000000000000000000000000000000000000000000000000000008316145b92915050565b6060600280546104a290611dc3565b80601f01602080910402602001604051908101604052809291908181526020018280546104ce90611dc3565b801561051b5780601f106104f05761010080835404028352916020019161051b565b820191906000526020600020905b8154815290600101906020018083116104fe57829003601f168201915b5050505050905090565b600061053082610daf565b610566576040517fcf4700e400000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b506000908152600660205260409020546001600160a01b031690565b600061058d82610def565b9050806001600160a01b0316836001600160a01b031614156105db576040517f943f7b8c00000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b336001600160a01b0382161461062b576105f5813361035a565b61062b576040517fcfb3b94200000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b600082815260066020526040808220805473ffffffffffffffffffffffffffffffffffffffff19166001600160a01b0387811691821790925591518593918516917f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b92591a4505050565b60006106a161dead6108a9565b6001546000540303905090565b6106b9838383610e82565b505050565b6106b983838360405180602001604052806000815250610a35565b336000908152600b602052604090205460ff1615610723576040517f231f8adb00000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b611388600a5410610760576040517f231f8adb00000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b61076b336001611097565b336000908152600b60205260408120805460ff19166001179055600a80549161079383611dfe565b9190505550565b6008546001600160a01b031633146107f95760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657260448201526064015b60405180910390fd5b805161080c90600c906020840190611902565b5050565b600c805461081d90611dc3565b80601f016020809104026020016040519081016040528092919081815260200182805461084990611dc3565b80156108965780601f1061086b57610100808354040283529160200191610896565b820191906000526020600020905b81548152906001019060200180831161087957829003601f168201915b505050505081565b600061048d82610def565b60006001600160a01b0382166108eb576040517f8f4eb60400000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b506001600160a01b031660009081526005602052604090205467ffffffffffffffff1690565b6008546001600160a01b0316331461096b5760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657260448201526064016107f0565b61097560006110b1565b565b6060600380546104a290611dc3565b6001600160a01b0382163314156109c9576040517fb06307db00000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b3360008181526007602090815260408083206001600160a01b03871680855290835292819020805460ff191686151590811790915590519081529192917f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31910160405180910390a35050565b610a40848484610e82565b6001600160a01b0383163b15610a7957610a5c84848484611110565b610a79576040516368d2bf6b60e11b815260040160405180910390fd5b50505050565b6060610a8a82610daf565b610ac0576040517fa14c4b5000000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b6000610aca611243565b9050805160001415610aeb5760405180602001604052806000815250610b16565b80610af584611252565b604051602001610b06929190611e27565b6040516020818303038152906040525b9392505050565b6008546001600160a01b03163314610b775760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657260448201526064016107f0565b805160005b818110156106b9576000838281518110610b9857610b98611e56565b60200260200101519050610bab816112a1565b5080610bb681611dfe565b915050610b7c565b6008546001600160a01b03163314610c185760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657260448201526064016107f0565b6001600160a01b038116610c945760405162461bcd60e51b815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201527f646472657373000000000000000000000000000000000000000000000000000060648201526084016107f0565b610c9d816110b1565b50565b6009546040517fffffffffffffffffffffffffffffffffffffffff0000000000000000000000003360601b166020820152603481018690526001600160a01b0390911690610d6690859085908590610d5e90605401604051602081830303815290604052805190602001206040517f19457468657265756d205369676e6564204d6573736167653a0a3332000000006020820152603c8101829052600090605c01604051602081830303815290604052805190602001209050919050565b9291906112ac565b6001600160a01b031614610da6576040517f8aa9c9ac00000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b610a79846112a1565b600080548210801561048d5750506000908152600460205260409020547c0100000000000000000000000000000000000000000000000000000000161590565b600081600054811015610e50576000818152600460205260409020547c01000000000000000000000000000000000000000000000000000000008116610e4e575b80610b16575060001901600081815260046020526040902054610e30565b505b6040517fdf2d9b4200000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b6000610e8d82610def565b9050836001600160a01b0316816001600160a01b031614610eda576040517fa114810000000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b6000336001600160a01b0386161480610ef85750610ef8853361035a565b80610f13575033610f0884610525565b6001600160a01b0316145b905080610f4c576040517f59c896be00000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b6001600160a01b038416610f8c576040517fea553b3400000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b6000838152600660209081526040808320805473ffffffffffffffffffffffffffffffffffffffff191690556001600160a01b0388811684526005835281842080546000190190558716835280832080546001019055858352600490915290207c02000000000000000000000000000000000000000000000000000000004260a01b86178117909155821661104f576001830160008181526004602052604090205461104d57600054811461104d5760008181526004602052604090208390555b505b82846001600160a01b0316866001600160a01b03167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef60405160405180910390a45050505050565b61080c8282604051806020016040528060008152506112d4565b600880546001600160a01b0383811673ffffffffffffffffffffffffffffffffffffffff19831681179093556040519116919082907f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e090600090a35050565b6040517f150b7a020000000000000000000000000000000000000000000000000000000081526000906001600160a01b0385169063150b7a029061115e903390899088908890600401611e6c565b6020604051808303816000875af1925050508015611199575060408051601f3d908101601f1916820190925261119691810190611ea8565b60015b6111f4573d8080156111c7576040519150601f19603f3d011682016040523d82523d6000602084013e6111cc565b606091505b5080516111ec576040516368d2bf6b60e11b815260040160405180910390fd5b805181602001fd5b7fffffffff00000000000000000000000000000000000000000000000000000000167f150b7a02000000000000000000000000000000000000000000000000000000001490505b949350505050565b6060600c80546104a290611dc3565b604080516080810191829052607f0190826030600a8206018353600a90045b801561128f57600183039250600a81066030018353600a9004611271565b50819003601f19909101908152919050565b610c9d816000611478565b60008060006112bd87878787611624565b915091506112ca81611711565b5095945050505050565b6000546001600160a01b038416611317576040517f2e07630000000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b8261134e576040517fb562e8dd00000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b6001600160a01b03841660008181526005602090815260408083208054680100000000000000018902019055848352600490915290204260a01b86176001861460e11b1790558190818501903b15611423575b60405182906001600160a01b038816906000907fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef908290a46113ec6000878480600101955087611110565b611409576040516368d2bf6b60e11b815260040160405180910390fd5b8082106113a157826000541461141e57600080fd5b611468565b5b6040516001830192906001600160a01b038816906000907fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef908290a4808210611424575b506000908155610a799085838684565b600061148383610def565b9050808215611500576000336001600160a01b03831614806114aa57506114aa823361035a565b806114c55750336114ba86610525565b6001600160a01b0316145b9050806114fe576040517f59c896be00000000000000000000000000000000000000000000000000000000815260040160405180910390fd5b505b6000848152600660209081526040808320805473ffffffffffffffffffffffffffffffffffffffff191690556001600160a01b03841683526005825280832080546fffffffffffffffffffffffffffffffff019055868352600490915290207c03000000000000000000000000000000000000000000000000000000004260a01b83171790557c020000000000000000000000000000000000000000000000000000000082166115de57600184016000818152600460205260409020546115dc5760005481146115dc5760008181526004602052604090208390555b505b60405184906000906001600160a01b038416907fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef908390a4505060018054810190555050565b6000807f7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a083111561165b5750600090506003611708565b8460ff16601b1415801561167357508460ff16601c14155b156116845750600090506004611708565b6040805160008082526020820180845289905260ff881692820192909252606081018690526080810185905260019060a0016020604051602081039080840390855afa1580156116d8573d6000803e3d6000fd5b5050604051601f1901519150506001600160a01b03811661170157600060019250925050611708565b9150600090505b94509492505050565b600081600481111561172557611725611ec5565b141561172e5750565b600181600481111561174257611742611ec5565b14156117905760405162461bcd60e51b815260206004820152601860248201527f45434453413a20696e76616c6964207369676e6174757265000000000000000060448201526064016107f0565b60028160048111156117a4576117a4611ec5565b14156117f25760405162461bcd60e51b815260206004820152601f60248201527f45434453413a20696e76616c6964207369676e6174757265206c656e6774680060448201526064016107f0565b600381600481111561180657611806611ec5565b141561187a5760405162461bcd60e51b815260206004820152602260248201527f45434453413a20696e76616c6964207369676e6174757265202773272076616c60448201527f756500000000000000000000000000000000000000000000000000000000000060648201526084016107f0565b600481600481111561188e5761188e611ec5565b1415610c9d5760405162461bcd60e51b815260206004820152602260248201527f45434453413a20696e76616c6964207369676e6174757265202776272076616c60448201527f756500000000000000000000000000000000000000000000000000000000000060648201526084016107f0565b82805461190e90611dc3565b90600052602060002090601f0160209004810192826119305760008555611976565b82601f1061194957805160ff1916838001178555611976565b82800160010185558215611976579182015b8281111561197657825182559160200191906001019061195b565b50611982929150611986565b5090565b5b808211156119825760008155600101611987565b7fffffffff0000000000000000000000000000000000000000000000000000000081168114610c9d57600080fd5b6000602082840312156119db57600080fd5b8135610b168161199b565b60005b83811015611a015781810151838201526020016119e9565b83811115610a795750506000910152565b60008151808452611a2a8160208601602086016119e6565b601f01601f19169290920160200192915050565b602081526000610b166020830184611a12565b600060208284031215611a6357600080fd5b5035919050565b80356001600160a01b0381168114611a8157600080fd5b919050565b60008060408385031215611a9957600080fd5b611aa283611a6a565b946020939093013593505050565b600080600060608486031215611ac557600080fd5b611ace84611a6a565b9250611adc60208501611a6a565b9150604084013590509250925092565b634e487b7160e01b600052604160045260246000fd5b604051601f8201601f1916810167ffffffffffffffff81118282101715611b2b57611b2b611aec565b604052919050565b600067ffffffffffffffff831115611b4d57611b4d611aec565b611b606020601f19601f86011601611b02565b9050828152838383011115611b7457600080fd5b828260208301376000602084830101529392505050565b600060208284031215611b9d57600080fd5b813567ffffffffffffffff811115611bb457600080fd5b8201601f81018413611bc557600080fd5b61123b84823560208401611b33565b600060208284031215611be657600080fd5b610b1682611a6a565b60008060408385031215611c0257600080fd5b611c0b83611a6a565b915060208301358015158114611c2057600080fd5b809150509250929050565b60008060008060808587031215611c4157600080fd5b611c4a85611a6a565b9350611c5860208601611a6a565b925060408501359150606085013567ffffffffffffffff811115611c7b57600080fd5b8501601f81018713611c8c57600080fd5b611c9b87823560208401611b33565b91505092959194509250565b60006020808385031215611cba57600080fd5b823567ffffffffffffffff80821115611cd257600080fd5b818501915085601f830112611ce657600080fd5b813581811115611cf857611cf8611aec565b8060051b9150611d09848301611b02565b8181529183018401918481019088841115611d2357600080fd5b938501935b83851015611d4157843582529385019390850190611d28565b98975050505050505050565b60008060408385031215611d6057600080fd5b611d6983611a6a565b9150611d7760208401611a6a565b90509250929050565b60008060008060808587031215611d9657600080fd5b84359350602085013560ff81168114611dae57600080fd5b93969395505050506040820135916060013590565b600181811c90821680611dd757607f821691505b60208210811415611df857634e487b7160e01b600052602260045260246000fd5b50919050565b6000600019821415611e2057634e487b7160e01b600052601160045260246000fd5b5060010190565b60008351611e398184602088016119e6565b835190830190611e4d8183602088016119e6565b01949350505050565b634e487b7160e01b600052603260045260246000fd5b60006001600160a01b03808716835280861660208401525083604083015260806060830152611e9e6080830184611a12565b9695505050505050565b600060208284031215611eba57600080fd5b8151610b168161199b565b634e487b7160e01b600052602160045260246000fdfea26469706673582212207802a0c056154a6a430e48359a1fd014ad713fcda08487fba729f1962371190264736f6c634300080b0033

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

-----Decoded View---------------
Arg [0] : _name (string): Infinite
Arg [1] : _symbol (string): INFINITE
Arg [2] : signer_ (address): 0x1C2BFA53ae78433A443E6aAf460a066d14b2e730
Arg [3] : _baseUrl (string): ipfs://QmfBTpv59ghSNRQaTKiPciBez1MjnwxMXPz9DPWxBioNK8/

-----Encoded View---------------
11 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 0000000000000000000000001c2bfa53ae78433a443e6aaf460a066d14b2e730
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [5] : 496e66696e697465000000000000000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [7] : 494e46494e495445000000000000000000000000000000000000000000000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000036
Arg [9] : 697066733a2f2f516d664254707635396768534e525161544b6950636942657a
Arg [10] : 314d6a6e77784d58507a394450577842696f4e4b382f00000000000000000000