Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.9 <0.9.0;

import 'erc721a/contracts/ERC721A.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/security/ReentrancyGuard.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import {DefaultOperatorFilterer} from './DefaultOperatorFilterer.sol';

contract TheArtefact is ERC721A, DefaultOperatorFilterer, Ownable, ReentrancyGuard {

  // MINT SUPPLY AND PRICE
  uint256 public WL_PRICE = 0.01 ether;
  uint256 public PUBLIC_PRICE = 0.012 ether;
  uint256 public MAX_SUPPLY = 3333;
  uint256 public MAX_PER_WALLET = 2;

  // SALE STATE
  enum SaleState {
    Closed,
    WlSale,
    PublicSale
  }
  SaleState private SALE_STATE = SaleState.Closed;
  
  bool public revealed = false;
  string private baseURI = "";
  
  bytes32 wlRoot;

  address public constant DEV_ADDRESS = 0x7204950b20020922d858163F4051E9c5A1d4a650;
  address public constant ARTIST_ADDRESS = 0xFA05bC233BB2AaC7D75905F609Eb492a406BB7Ce; 
  address public constant TEAM_ADDRESS = 0x15cbbFdeE28287352Ee41fA5f4Ee088607252007; 

  constructor() ERC721A("The Artefact", "ARTE") {
    _mint(msg.sender, 1);
  }

  modifier mintCompliance(uint256 _mintAmount) {
    require(_mintAmount > 0, "ARTE: Invalid mint amount!");
    require(_numberMinted(_msgSender()) + _mintAmount <= MAX_PER_WALLET, "ARTE: Max Limit per Wallet!");
    require(totalSupply() + _mintAmount <= MAX_SUPPLY, "ARTE: Max supply exceeded!");
    _;
  }

  modifier isSecured(uint8 mintType) {
    require(tx.origin == msg.sender,"ARTE: Contract mint not allowed");

    if (mintType == 1) {
      require(SALE_STATE == SaleState.WlSale, "ARTE: WL Mint is not active.");
    }

    if(mintType == 2) {
      require(SALE_STATE == SaleState.PublicSale, "ARTE: Public Mint is not active");
    }
    _;
  }

  function wlMint(bytes32[] memory proof, uint256 _mintAmount) public payable mintCompliance(_mintAmount) isSecured(1) nonReentrant {
    require(MerkleProof.verify(proof, wlRoot, keccak256(abi.encodePacked(msg.sender))), "ARTE: Not Whitelisted");
    require(msg.value >= WL_PRICE * _mintAmount, "ARTE: Send more ETh");
    _safeMint(msg.sender, _mintAmount);
  }

  function publicMint(uint256 _mintAmount) public payable mintCompliance(_mintAmount) isSecured(2) nonReentrant {
    require(msg.value >= PUBLIC_PRICE * _mintAmount, "ARTE: Send more ETH");
    _safeMint(_msgSender(), _mintAmount);
  }

  function mintForAddress(uint256 _mintAmount, address _to) external onlyOwner {
    require(totalSupply() + _mintAmount <= MAX_SUPPLY, "ARTE: Max supply exceeded");
    _mint(_to, _mintAmount);
  }

  function batchMintForAddresses(address[] calldata addresses_, uint256[] calldata amounts_) external onlyOwner {
    require(addresses_.length == amounts_.length, "ADDRESSES_AMOUNT_MISMATCH");
    unchecked {
      for (uint32 i = 0; i < addresses_.length; ++i) {
          _mint(addresses_[i], amounts_[i]);
      }
    }
   }

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

  function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
    require(_exists(_tokenId), 'ERC721Metadata: URI query for nonexistent token');

    if (revealed) {
      return string(abi.encodePacked(baseURI, Strings.toString(_tokenId), ".json"));
    } else {
      return string(abi.encodePacked(baseURI));
    }
  }

  // ROOT SETTERS
  function setWLSaleRoot(bytes32 _wlRoot) external onlyOwner {
    wlRoot = _wlRoot;
  }

  // LIMIT SETTERS
  function setMintLimit(uint256 _mintLimit) external onlyOwner {
    MAX_PER_WALLET = _mintLimit;
  }

  // PRICE FUNCTIONS
  function setPublicPrice(uint256 _price) external onlyOwner {
    PUBLIC_PRICE = _price;
  }

  function setWlPrice(uint256 _price) external onlyOwner {
    WL_PRICE = _price;
  }

  function getWlMintPrice() public view returns (uint256) {
    return WL_PRICE;
  }

  function getPublicPrice() public view returns (uint256) {
    return PUBLIC_PRICE;
  }
  
  // SALE STATE FUNCTIONS
  function togglePublicMintStatus() external onlyOwner {
    SALE_STATE = SaleState.PublicSale;
  }

  function toggleWlMintStatus() external onlyOwner {
    SALE_STATE = SaleState.WlSale;
  }

  function toggleMintPaused() external onlyOwner {
    SALE_STATE = SaleState.Closed;
  }

  function getSaleState() public view returns (SaleState) {
    return SALE_STATE;
  }

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

  function reveal(bool _revealed, string calldata _uri) external onlyOwner {
    revealed = _revealed;
    baseURI = _uri;
  }

  // withdraw
  function withdraw() external onlyOwner {
    uint256 balance = address(this).balance;
    require(balance > 0, "No balance to withdraw");
    uint256 acc_a = (balance * 33) / 100;
    uint256 acc_b = (balance * 33) / 100;
    payable(ARTIST_ADDRESS).transfer(acc_a);
    payable(TEAM_ADDRESS).transfer(acc_b);
    payable(DEV_ADDRESS).transfer(address(this).balance);
  }
  
  function _baseURI() internal view virtual override returns (string memory) {
    return baseURI;
  }
  
  function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {
    super.setApprovalForAll(operator, approved);
  }

  function approve(address operator, uint256 tokenId) public payable override onlyAllowedOperatorApproval(operator) {
    super.approve(operator, tokenId);
  }

  function transferFrom(address from, address to, uint256 tokenId) public payable override onlyAllowedOperator(from) {
    super.transferFrom(from, to, tokenId);
  }

  function safeTransferFrom(address from, address to, uint256 tokenId) public payable override onlyAllowedOperator(from) {
    super.safeTransferFrom(from, to, tokenId);
  }

  function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data)
  public payable
  override
  onlyAllowedOperator(from)
  {
    super.safeTransferFrom(from, to, tokenId, data);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import {OperatorFilterer} from "./OperatorFilterer.sol";

/**
 * @title  DefaultOperatorFilterer
 * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.
 */
abstract contract DefaultOperatorFilterer is OperatorFilterer {
    address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);

    constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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 // Deprecated in v4.8
    }

    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");
        }
    }

    /**
     * @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) {
        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.
            /// @solidity memory-safe-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 {
            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 = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 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 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 (last updated v4.8.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The tree and the proofs can be generated using our
 * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
 * You will find a quickstart guide in the readme.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the merkle tree could be reinterpreted as a leaf value.
 * OpenZeppelin's JavaScript library generates merkle trees that are safe
 * against this attack out of the box.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     *
     * _Available since v4.7._
     */
    function verifyCalldata(
        bytes32[] calldata proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     *
     * _Available since v4.7._
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
     * respectively.
     *
     * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
     *
     * _Available since v4.7._
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            return hashes[totalHashes - 1];
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}.
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            return hashes[totalHashes - 1];
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @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] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.4;

import './IERC721A.sol';

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        return _tokenApprovals[tokenId].value;
    }

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

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

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

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

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

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

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

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

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

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

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

        _beforeTokenTransfers(from, to, tokenId, 1);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

            uint256 toMasked;
            uint256 end = startTokenId + quantity;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        address from = address(uint160(prevOwnershipPacked));

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Converts a uint256 to its ASCII string decimal representation.
     */
    function _toString(uint256 value) internal pure virtual returns (string memory str) {
        assembly {
            // The maximum value of a uint256 contains 78 digits (1 byte per digit), but
            // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
            // We will need 1 word for the trailing zeros padding, 1 word for the length,
            // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.
            let m := add(mload(0x40), 0xa0)
            // Update the free memory pointer to allocate.
            mstore(0x40, m)
            // Assign the `str` to the end.
            str := sub(m, 0x20)
            // Zeroize the slot after the string.
            mstore(str, 0)

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

            // We write the string from rightmost digit to leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            // prettier-ignore
            for { let temp := value } 1 {} {
                str := sub(str, 1)
                // Write the character to the pointer.
                // The ASCII index of the '0' character is 48.
                mstore8(str, add(48, mod(temp, 10)))
                // Keep dividing `temp` until zero.
                temp := div(temp, 10)
                // prettier-ignore
                if iszero(temp) { break }
            }

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

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

pragma solidity ^0.8.4;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import {IOperatorFilterRegistry} from "./IOperatorFilterRegistry.sol";

/**
 * @title  OperatorFilterer
 * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another
 *         registrant's entries in the OperatorFilterRegistry.
 * @dev    This smart contract is meant to be inherited by token contracts so they can use the following:
 *         - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.
 *         - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.
 */
abstract contract OperatorFilterer {
    error OperatorNotAllowed(address operator);

    IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =
        IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);

    constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {
        // If an inheriting token contract is deployed to a network without the registry deployed, the modifier
        // will not revert, but the contract will need to be registered with the registry once it is deployed in
        // order for the modifier to filter addresses.
        if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
            if (subscribe) {
                OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);
            } else {
                if (subscriptionOrRegistrantToCopy != address(0)) {
                    OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);
                } else {
                    OPERATOR_FILTER_REGISTRY.register(address(this));
                }
            }
        }
    }

    modifier onlyAllowedOperator(address from) virtual {
        // Allow spending tokens from addresses with balance
        // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
        // from an EOA.
        if (from != msg.sender) {
            _checkFilterOperator(msg.sender);
        }
        _;
    }

    modifier onlyAllowedOperatorApproval(address operator) virtual {
        _checkFilterOperator(operator);
        _;
    }

    function _checkFilterOperator(address operator) internal view virtual {
        // Check registry code length to facilitate testing in environments without a deployed registry.
        if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
            if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {
                revert OperatorNotAllowed(operator);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

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

pragma solidity ^0.8.0;

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

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

interface IOperatorFilterRegistry {
    function isOperatorAllowed(address registrant, address operator) external view returns (bool);
    function register(address registrant) external;
    function registerAndSubscribe(address registrant, address subscription) external;
    function registerAndCopyEntries(address registrant, address registrantToCopy) external;
    function unregister(address addr) external;
    function updateOperator(address registrant, address operator, bool filtered) external;
    function updateOperators(address registrant, address[] calldata operators, bool filtered) external;
    function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;
    function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;
    function subscribe(address registrant, address registrantToSubscribe) external;
    function unsubscribe(address registrant, bool copyExistingEntries) external;
    function subscriptionOf(address addr) external returns (address registrant);
    function subscribers(address registrant) external returns (address[] memory);
    function subscriberAt(address registrant, uint256 index) external returns (address);
    function copyEntriesOf(address registrant, address registrantToCopy) external;
    function isOperatorFiltered(address registrant, address operator) external returns (bool);
    function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);
    function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);
    function filteredOperators(address addr) external returns (address[] memory);
    function filteredCodeHashes(address addr) external returns (bytes32[] memory);
    function filteredOperatorAt(address registrant, uint256 index) external returns (address);
    function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);
    function isRegistered(address addr) external returns (bool);
    function codeHashOf(address addr) external returns (bytes32);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"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":[{"internalType":"address","name":"operator","type":"address"}],"name":"OperatorNotAllowed","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"OwnershipNotInitializedForExtraData","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toTokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"ConsecutiveTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"ARTIST_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEV_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_PER_WALLET","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_SUPPLY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"OPERATOR_FILTER_REGISTRY","outputs":[{"internalType":"contract IOperatorFilterRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PUBLIC_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TEAM_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WL_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","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":[{"internalType":"address[]","name":"addresses_","type":"address[]"},{"internalType":"uint256[]","name":"amounts_","type":"uint256[]"}],"name":"batchMintForAddresses","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":[],"name":"getPublicPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getSaleState","outputs":[{"internalType":"enum TheArtefact.SaleState","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getWlMintPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"uint256","name":"_mintAmount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"mintForAddress","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":"uint256","name":"_mintAmount","type":"uint256"}],"name":"publicMint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_revealed","type":"bool"},{"internalType":"string","name":"_uri","type":"string"}],"name":"reveal","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"revealed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":"URI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintLimit","type":"uint256"}],"name":"setMintLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_price","type":"uint256"}],"name":"setPublicPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_wlRoot","type":"bytes32"}],"name":"setWLSaleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_price","type":"uint256"}],"name":"setWlPrice","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":[],"name":"toggleMintPaused","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"togglePublicMintStatus","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"toggleWlMintStatus","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"},{"internalType":"uint256","name":"_mintAmount","type":"uint256"}],"name":"wlMint","outputs":[],"stateMutability":"payable","type":"function"}]

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