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 ^0.8.23;

import "erc721a/contracts/extensions/ERC721AQueryable.sol";
import "erc721a/contracts/extensions/ERC721ABurnable.sol";
import "erc721a/contracts/ERC721A.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol";

contract Undercats is ERC721AQueryable, ERC721ABurnable, EIP712, Ownable {
    uint256 public maxSupply = 3333;
    uint256 public maxNormalMintPerAccount = 3;
    uint256 public maxWhitelistMintPerAccount = 3;
    uint256 public publicSalesTimestamp = 1705507200;
    uint256 public whitelistSalesTimestamp = 1705503600;
    uint256 public totalNormalMint;
    uint256 public totalWhitelistMint;
    uint256 public totalFreeMint;
    uint256 public normalMintPrice = 0.015 ether;
    uint256 public whitelistMintPrice = 0.01 ether;

    mapping(address => uint256) private _totalNormalMintPerAccount;
    mapping(address => uint256) private _totalWhitelistMintPerAccount;

    mapping(address => bool) public freeMinted;

    address private _signerPublicKey =
        0x68F33c145b310aD04E8a81B7DCB000f51dE08677;

    string private _contractUri;
    string private _baseUri;

    constructor() ERC721A("Undercats", "UDC") EIP712("Undercats", "1.0.0") {}

    function mint(uint256 amount) external payable {
        require(totalSupply() < maxSupply, "sold out");
        require(isPublicSalesActive(), "sales is not active");
        require(amount > 0, "invalid amount");
        require(
            amount + _totalNormalMintPerAccount[msg.sender] <=
                maxNormalMintPerAccount,
            "max tokens per account reached"
        );
        require(
            amount + totalSupply() <= maxSupply,
            "amount exceeds max supply"
        );

        require(msg.value >= (normalMintPrice * amount), "Insufficient funds!");

        totalNormalMint += amount;
        _totalNormalMintPerAccount[msg.sender] += amount;
        _safeMint(msg.sender, amount);
    }

    function whitelistMint(
        uint256 amount,
        bytes calldata signature
    ) external payable {
        require(totalSupply() < maxSupply, "sold out");
        require(
            _recoverAddress(msg.sender, signature) == _signerPublicKey,
            "account is not whitelisted"
        );
        require(isWhitelistSalesActive(), "sales is not active");
        require(amount > 0, "invalid amount");
        require(
            amount + totalSupply() <= maxSupply,
            "amount exceeds max supply"
        );

        require(
            amount + _totalWhitelistMintPerAccount[msg.sender] <=
                maxWhitelistMintPerAccount,
            "max tokens per account reached"
        );

        if (freeMinted[_msgSender()]) {
            require(
                msg.value >= amount * whitelistMintPrice,
                "Invalid mint price"
            );
        } else {
            require(
                msg.value >= whitelistMintPrice * amount - whitelistMintPrice,
                "Insufficient funds!"
            );

            totalFreeMint += 1;
            freeMinted[_msgSender()] = true;
        }

        totalWhitelistMint += amount;
        _totalWhitelistMintPerAccount[msg.sender] += amount;
        _safeMint(msg.sender, amount);
    }

    function batchMint(
        address[] calldata addresses,
        uint256[] calldata amounts
    ) external onlyOwner {
        require(
            addresses.length == amounts.length,
            "addresses and amounts doesn't match"
        );

        for (uint256 i = 0; i < addresses.length; i++) {
            totalNormalMint += amounts[i];
            _safeMint(addresses[i], amounts[i]);
        }
    }

    function isPublicSalesActive() public view returns (bool) {
        return publicSalesTimestamp <= block.timestamp;
    }

    function isWhitelistSalesActive() public view returns (bool) {
        return whitelistSalesTimestamp <= block.timestamp;
    }

    function hasMintedUsingWhitelist(
        address account
    ) public view returns (bool) {
        return
            _totalWhitelistMintPerAccount[account] >=
            maxWhitelistMintPerAccount;
    }

    function totalNormalMintPerAccount(
        address account
    ) public view returns (uint256) {
        return _totalNormalMintPerAccount[account];
    }

    function totalWhitelistMintPerAccount(
        address account
    ) public view returns (uint256) {
        return _totalWhitelistMintPerAccount[account];
    }

    function contractURI() external view returns (string memory) {
        return _contractUri;
    }

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

    function setContractURI(string memory contractURI_) external onlyOwner {
        _contractUri = contractURI_;
    }

    function setBaseURI(string memory baseURI_) external onlyOwner {
        _baseUri = baseURI_;
    }

    function setSignerPublicKey(address signerPublicKey_) external onlyOwner {
        _signerPublicKey = signerPublicKey_;
    }

    function setMaxSupply(uint256 maxSupply_) external onlyOwner {
        maxSupply = maxSupply_;
    }

    function setNormalMintPrice(uint256 normalMintPrice_) external onlyOwner {
        normalMintPrice = normalMintPrice_;
    }

    function setWhitelistMintPrice(
        uint256 whitelistMintPrice_
    ) external onlyOwner {
        whitelistMintPrice = whitelistMintPrice_;
    }

    function setMaxNormalMintPerAccount(
        uint256 maxNormalMintPerAccount_
    ) external onlyOwner {
        maxNormalMintPerAccount = maxNormalMintPerAccount_;
    }

    function setMaxWhitelistMintPerAccount(
        uint256 maxWhitelistMintPerAccount_
    ) external onlyOwner {
        maxWhitelistMintPerAccount = maxWhitelistMintPerAccount_;
    }

    function setPublicSalesTimestamp(uint256 timestamp) external onlyOwner {
        publicSalesTimestamp = timestamp;
    }

    function setWhitelistSalesTimestamp(uint256 timestamp) external onlyOwner {
        whitelistSalesTimestamp = timestamp;
    }

    function withdrawAll() external onlyOwner {
        require(payable(msg.sender).send(address(this).balance));
    }

    function _hash(address account) private view returns (bytes32) {
        return
            _hashTypedDataV4(
                keccak256(
                    abi.encode(keccak256("Undercats(address account)"), account)
                )
            );
    }

    function _recoverAddress(
        address account,
        bytes calldata signature
    ) private view returns (address) {
        return ECDSA.recover(_hash(account), signature);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

// 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
// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/draft-EIP712.sol)

pragma solidity ^0.8.0;

// EIP-712 is Final as of 2022-08-11. This file is deprecated.

import "./EIP712.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @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 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;

import "./ECDSA.sol";
import "../ShortStrings.sol";
import "../../interfaces/IERC5267.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
 */
abstract contract EIP712 is IERC5267 {
    using ShortStrings for *;

    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _cachedDomainSeparator;
    uint256 private immutable _cachedChainId;
    address private immutable _cachedThis;

    bytes32 private immutable _hashedName;
    bytes32 private immutable _hashedVersion;

    ShortString private immutable _name;
    ShortString private immutable _version;
    string private _nameFallback;
    string private _versionFallback;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        _name = name.toShortStringWithFallback(_nameFallback);
        _version = version.toShortStringWithFallback(_versionFallback);
        _hashedName = keccak256(bytes(name));
        _hashedVersion = keccak256(bytes(version));

        _cachedChainId = block.chainid;
        _cachedDomainSeparator = _buildDomainSeparator();
        _cachedThis = address(this);
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
            return _cachedDomainSeparator;
        } else {
            return _buildDomainSeparator();
        }
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        return (
            hex"0f", // 01111
            _name.toStringWithFallback(_nameFallback),
            _version.toStringWithFallback(_versionFallback),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 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 256, 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 << 3) < value ? 1 : 0);
        }
    }
}

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

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)

pragma solidity ^0.8.8;

import "./StorageSlot.sol";

// | string  | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA   |
// | length  | 0x                                                              BB |
type ShortString is bytes32;

/**
 * @dev This library provides functions to convert short memory strings
 * into a `ShortString` type that can be used as an immutable variable.
 *
 * Strings of arbitrary length can be optimized using this library if
 * they are short enough (up to 31 bytes) by packing them with their
 * length (1 byte) in a single EVM word (32 bytes). Additionally, a
 * fallback mechanism can be used for every other case.
 *
 * Usage example:
 *
 * ```solidity
 * contract Named {
 *     using ShortStrings for *;
 *
 *     ShortString private immutable _name;
 *     string private _nameFallback;
 *
 *     constructor(string memory contractName) {
 *         _name = contractName.toShortStringWithFallback(_nameFallback);
 *     }
 *
 *     function name() external view returns (string memory) {
 *         return _name.toStringWithFallback(_nameFallback);
 *     }
 * }
 * ```
 */
library ShortStrings {
    // Used as an identifier for strings longer than 31 bytes.
    bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;

    error StringTooLong(string str);
    error InvalidShortString();

    /**
     * @dev Encode a string of at most 31 chars into a `ShortString`.
     *
     * This will trigger a `StringTooLong` error is the input string is too long.
     */
    function toShortString(string memory str) internal pure returns (ShortString) {
        bytes memory bstr = bytes(str);
        if (bstr.length > 31) {
            revert StringTooLong(str);
        }
        return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
    }

    /**
     * @dev Decode a `ShortString` back to a "normal" string.
     */
    function toString(ShortString sstr) internal pure returns (string memory) {
        uint256 len = byteLength(sstr);
        // using `new string(len)` would work locally but is not memory safe.
        string memory str = new string(32);
        /// @solidity memory-safe-assembly
        assembly {
            mstore(str, len)
            mstore(add(str, 0x20), sstr)
        }
        return str;
    }

    /**
     * @dev Return the length of a `ShortString`.
     */
    function byteLength(ShortString sstr) internal pure returns (uint256) {
        uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
        if (result > 31) {
            revert InvalidShortString();
        }
        return result;
    }

    /**
     * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
     */
    function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
        if (bytes(value).length < 32) {
            return toShortString(value);
        } else {
            StorageSlot.getStringSlot(store).value = value;
            return ShortString.wrap(_FALLBACK_SENTINEL);
        }
    }

    /**
     * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     */
    function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return toString(value);
        } else {
            return store;
        }
    }

    /**
     * @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     *
     * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
     * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
     */
    function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return byteLength(value);
        } else {
            return bytes(store).length;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
 * _Available since v4.9 for `string`, `bytes`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.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 `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @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);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// 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;

import './IERC721ABurnable.sol';
import '../ERC721A.sol';

/**
 * @title ERC721ABurnable.
 *
 * @dev ERC721A token that can be irreversibly burned (destroyed).
 */
abstract contract ERC721ABurnable is ERC721A, IERC721ABurnable {
    /**
     * @dev Burns `tokenId`. See {ERC721A-_burn}.
     *
     * Requirements:
     *
     * - The caller must own `tokenId` or be an approved operator.
     */
    function burn(uint256 tokenId) public virtual override {
        _burn(tokenId, true);
    }
}

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

pragma solidity ^0.8.4;

import './IERC721AQueryable.sol';
import '../ERC721A.sol';

/**
 * @title ERC721AQueryable.
 *
 * @dev ERC721A subclass with convenience query functions.
 */
abstract contract ERC721AQueryable is ERC721A, IERC721AQueryable {
    /**
     * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.
     *
     * If the `tokenId` is out of bounds:
     *
     * - `addr = address(0)`
     * - `startTimestamp = 0`
     * - `burned = false`
     * - `extraData = 0`
     *
     * If the `tokenId` is burned:
     *
     * - `addr = <Address of owner before token was burned>`
     * - `startTimestamp = <Timestamp when token was burned>`
     * - `burned = true`
     * - `extraData = <Extra data when token was burned>`
     *
     * Otherwise:
     *
     * - `addr = <Address of owner>`
     * - `startTimestamp = <Timestamp of start of ownership>`
     * - `burned = false`
     * - `extraData = <Extra data at start of ownership>`
     */
    function explicitOwnershipOf(uint256 tokenId) public view virtual override returns (TokenOwnership memory) {
        TokenOwnership memory ownership;
        if (tokenId < _startTokenId() || tokenId >= _nextTokenId()) {
            return ownership;
        }
        ownership = _ownershipAt(tokenId);
        if (ownership.burned) {
            return ownership;
        }
        return _ownershipOf(tokenId);
    }

    /**
     * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.
     * See {ERC721AQueryable-explicitOwnershipOf}
     */
    function explicitOwnershipsOf(uint256[] calldata tokenIds)
        external
        view
        virtual
        override
        returns (TokenOwnership[] memory)
    {
        unchecked {
            uint256 tokenIdsLength = tokenIds.length;
            TokenOwnership[] memory ownerships = new TokenOwnership[](tokenIdsLength);
            for (uint256 i; i != tokenIdsLength; ++i) {
                ownerships[i] = explicitOwnershipOf(tokenIds[i]);
            }
            return ownerships;
        }
    }

    /**
     * @dev Returns an array of token IDs owned by `owner`,
     * in the range [`start`, `stop`)
     * (i.e. `start <= tokenId < stop`).
     *
     * This function allows for tokens to be queried if the collection
     * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.
     *
     * Requirements:
     *
     * - `start < stop`
     */
    function tokensOfOwnerIn(
        address owner,
        uint256 start,
        uint256 stop
    ) external view virtual override returns (uint256[] memory) {
        unchecked {
            if (start >= stop) revert InvalidQueryRange();
            uint256 tokenIdsIdx;
            uint256 stopLimit = _nextTokenId();
            // Set `start = max(start, _startTokenId())`.
            if (start < _startTokenId()) {
                start = _startTokenId();
            }
            // Set `stop = min(stop, stopLimit)`.
            if (stop > stopLimit) {
                stop = stopLimit;
            }
            uint256 tokenIdsMaxLength = balanceOf(owner);
            // Set `tokenIdsMaxLength = min(balanceOf(owner), stop - start)`,
            // to cater for cases where `balanceOf(owner)` is too big.
            if (start < stop) {
                uint256 rangeLength = stop - start;
                if (rangeLength < tokenIdsMaxLength) {
                    tokenIdsMaxLength = rangeLength;
                }
            } else {
                tokenIdsMaxLength = 0;
            }
            uint256[] memory tokenIds = new uint256[](tokenIdsMaxLength);
            if (tokenIdsMaxLength == 0) {
                return tokenIds;
            }
            // We need to call `explicitOwnershipOf(start)`,
            // because the slot at `start` may not be initialized.
            TokenOwnership memory ownership = explicitOwnershipOf(start);
            address currOwnershipAddr;
            // If the starting slot exists (i.e. not burned), initialize `currOwnershipAddr`.
            // `ownership.address` will not be zero, as `start` is clamped to the valid token ID range.
            if (!ownership.burned) {
                currOwnershipAddr = ownership.addr;
            }
            for (uint256 i = start; i != stop && tokenIdsIdx != tokenIdsMaxLength; ++i) {
                ownership = _ownershipAt(i);
                if (ownership.burned) {
                    continue;
                }
                if (ownership.addr != address(0)) {
                    currOwnershipAddr = ownership.addr;
                }
                if (currOwnershipAddr == owner) {
                    tokenIds[tokenIdsIdx++] = i;
                }
            }
            // Downsize the array to fit.
            assembly {
                mstore(tokenIds, tokenIdsIdx)
            }
            return tokenIds;
        }
    }

    /**
     * @dev Returns an array of token IDs owned by `owner`.
     *
     * This function scans the ownership mapping and is O(`totalSupply`) in complexity.
     * It is meant to be called off-chain.
     *
     * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into
     * multiple smaller scans if the collection is large enough to cause
     * an out-of-gas error (10K collections should be fine).
     */
    function tokensOfOwner(address owner) external view virtual override returns (uint256[] memory) {
        unchecked {
            uint256 tokenIdsIdx;
            address currOwnershipAddr;
            uint256 tokenIdsLength = balanceOf(owner);
            uint256[] memory tokenIds = new uint256[](tokenIdsLength);
            TokenOwnership memory ownership;
            for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ++i) {
                ownership = _ownershipAt(i);
                if (ownership.burned) {
                    continue;
                }
                if (ownership.addr != address(0)) {
                    currOwnershipAddr = ownership.addr;
                }
                if (currOwnershipAddr == owner) {
                    tokenIds[tokenIdsIdx++] = i;
                }
            }
            return tokenIds;
        }
    }
}

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

pragma solidity ^0.8.4;

import '../IERC721A.sol';

/**
 * @dev Interface of ERC721ABurnable.
 */
interface IERC721ABurnable is IERC721A {
    /**
     * @dev Burns `tokenId`. See {ERC721A-_burn}.
     *
     * Requirements:
     *
     * - The caller must own `tokenId` or be an approved operator.
     */
    function burn(uint256 tokenId) external;
}

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

pragma solidity ^0.8.4;

import '../IERC721A.sol';

/**
 * @dev Interface of ERC721AQueryable.
 */
interface IERC721AQueryable is IERC721A {
    /**
     * Invalid query range (`start` >= `stop`).
     */
    error InvalidQueryRange();

    /**
     * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.
     *
     * If the `tokenId` is out of bounds:
     *
     * - `addr = address(0)`
     * - `startTimestamp = 0`
     * - `burned = false`
     * - `extraData = 0`
     *
     * If the `tokenId` is burned:
     *
     * - `addr = <Address of owner before token was burned>`
     * - `startTimestamp = <Timestamp when token was burned>`
     * - `burned = true`
     * - `extraData = <Extra data when token was burned>`
     *
     * Otherwise:
     *
     * - `addr = <Address of owner>`
     * - `startTimestamp = <Timestamp of start of ownership>`
     * - `burned = false`
     * - `extraData = <Extra data at start of ownership>`
     */
    function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory);

    /**
     * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.
     * See {ERC721AQueryable-explicitOwnershipOf}
     */
    function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory);

    /**
     * @dev Returns an array of token IDs owned by `owner`,
     * in the range [`start`, `stop`)
     * (i.e. `start <= tokenId < stop`).
     *
     * This function allows for tokens to be queried if the collection
     * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.
     *
     * Requirements:
     *
     * - `start < stop`
     */
    function tokensOfOwnerIn(
        address owner,
        uint256 start,
        uint256 stop
    ) external view returns (uint256[] memory);

    /**
     * @dev Returns an array of token IDs owned by `owner`.
     *
     * This function scans the ownership mapping and is O(`totalSupply`) in complexity.
     * It is meant to be called off-chain.
     *
     * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into
     * multiple smaller scans if the collection is large enough to cause
     * an out-of-gas error (10K collections should be fine).
     */
    function tokensOfOwner(address owner) external view returns (uint256[] memory);
}

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

pragma solidity ^0.8.4;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

• 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":"InvalidQueryRange","type":"error"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[],"name":"MintERC2309QuantityExceedsLimit","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"OwnershipNotInitializedForExtraData","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","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":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"addresses","type":"address[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"name":"batchMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"explicitOwnershipOf","outputs":[{"components":[{"internalType":"address","name":"addr","type":"address"},{"internalType":"uint64","name":"startTimestamp","type":"uint64"},{"internalType":"bool","name":"burned","type":"bool"},{"internalType":"uint24","name":"extraData","type":"uint24"}],"internalType":"struct IERC721A.TokenOwnership","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"explicitOwnershipsOf","outputs":[{"components":[{"internalType":"address","name":"addr","type":"address"},{"internalType":"uint64","name":"startTimestamp","type":"uint64"},{"internalType":"bool","name":"burned","type":"bool"},{"internalType":"uint24","name":"extraData","type":"uint24"}],"internalType":"struct IERC721A.TokenOwnership[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"freeMinted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"hasMintedUsingWhitelist","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isPublicSalesActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isWhitelistSalesActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxNormalMintPerAccount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxWhitelistMintPerAccount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"normalMintPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"publicSalesTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURI_","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"contractURI_","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxNormalMintPerAccount_","type":"uint256"}],"name":"setMaxNormalMintPerAccount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxSupply_","type":"uint256"}],"name":"setMaxSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxWhitelistMintPerAccount_","type":"uint256"}],"name":"setMaxWhitelistMintPerAccount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"normalMintPrice_","type":"uint256"}],"name":"setNormalMintPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"setPublicSalesTimestamp","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"signerPublicKey_","type":"address"}],"name":"setSignerPublicKey","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"whitelistMintPrice_","type":"uint256"}],"name":"setWhitelistMintPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"setWhitelistSalesTimestamp","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"tokensOfOwner","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"start","type":"uint256"},{"internalType":"uint256","name":"stop","type":"uint256"}],"name":"tokensOfOwnerIn","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalFreeMint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalNormalMint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"totalNormalMintPerAccount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalWhitelistMint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"totalWhitelistMintPerAccount","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":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"whitelistMint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"whitelistMintPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"whitelistSalesTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawAll","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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