ETH Price: $3,812.69 (-2.14%)
Gas: 8 Gwei

Contract

0x591e153ed42b10da5EaFA06D120c00500f9bF016
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

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Transaction Hash
Method
Block
From
To
Value
Set Master Sig C...169774362023-04-04 18:58:47420 days ago1680634727IN
0x591e153e...00f9bF016
0 ETH0.0025560381.32972022
Props Mint169773432023-04-04 18:39:23420 days ago1680633563IN
0x591e153e...00f9bF016
0 ETH0.0020864253.13959769
Props Mint169708642023-04-03 20:29:35421 days ago1680553775IN
0x591e153e...00f9bF016
0 ETH0.0031127142.24981368
Props Mint169634012023-04-02 19:13:59422 days ago1680462839IN
0x591e153e...00f9bF016
0 ETH0.0006930117.65071143
Props Mint169607962023-04-02 10:24:47422 days ago1680431087IN
0x591e153e...00f9bF016
0 ETH0.0013696418.59055365
Props Mint169566392023-04-01 20:21:59423 days ago1680380519IN
0x591e153e...00f9bF016
0 ETH0.0012130416.467729
Props Mint169565902023-04-01 20:11:59423 days ago1680379919IN
0x591e153e...00f9bF016
0 ETH0.0015629721.21473415
Props Mint169503422023-03-31 23:06:59424 days ago1680304019IN
0x591e153e...00f9bF016
0 ETH0.0014759220.03315442
Props Mint169502752023-03-31 22:53:23424 days ago1680303203IN
0x591e153e...00f9bF016
0 ETH0.0014120419.16610781
Props Mint169500912023-03-31 22:16:23424 days ago1680300983IN
0x591e153e...00f9bF016
0 ETH0.001748223.72889998
Props Mint169498862023-03-31 21:35:23424 days ago1680298523IN
0x591e153e...00f9bF016
0 ETH0.0018435225.02276671
Props Mint169498272023-03-31 21:23:35424 days ago1680297815IN
0x591e153e...00f9bF016
0 ETH0.002117628.74755992
Props Mint169497302023-03-31 21:04:11424 days ago1680296651IN
0x591e153e...00f9bF016
0 ETH0.0020458827.76944554
Props Mint169492732023-03-31 19:31:11424 days ago1680291071IN
0x591e153e...00f9bF016
0 ETH0.0028311438.42799861
Props Mint169492632023-03-31 19:29:11424 days ago1680290951IN
0x591e153e...00f9bF016
0 ETH0.0019931927.05427347
Props Mint169490742023-03-31 18:50:47424 days ago1680288647IN
0x591e153e...00f9bF016
0 ETH0.0022306730.28750633
Props Mint169488492023-03-31 18:05:47424 days ago1680285947IN
0x591e153e...00f9bF016
0 ETH0.0021800829.60058819
Props Mint169487222023-03-31 17:40:23424 days ago1680284423IN
0x591e153e...00f9bF016
0 ETH0.0019117925.95358717
Props Mint169486262023-03-31 17:20:59424 days ago1680283259IN
0x591e153e...00f9bF016
0 ETH0.0033204345.06933553
Props Mint169486212023-03-31 17:19:47424 days ago1680283187IN
0x591e153e...00f9bF016
0 ETH0.0028200338.27715779
Props Mint169485432023-03-31 17:03:59424 days ago1680282239IN
0x591e153e...00f9bF016
0 ETH0.0027524737.36633966
Props Mint169484442023-03-31 16:44:11424 days ago1680281051IN
0x591e153e...00f9bF016
0 ETH0.002956340.12677744
Props Mint169481802023-03-31 15:51:23424 days ago1680277883IN
0x591e153e...00f9bF016
0 ETH0.0023491231.88534787
Set Base Suffix ...169481412023-03-31 15:43:23424 days ago1680277403IN
0x591e153e...00f9bF016
0 ETH0.0082389632.75774344
Set Default Roya...169478762023-03-31 14:49:35424 days ago1680274175IN
0x591e153e...00f9bF016
0 ETH0.001673235.88710288
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Contract Source Code Verified (Exact Match)

Contract Name:
PROPS

Compiler Version
v0.8.18+commit.87f61d96

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 22 : PROPS.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

/**
 *
 *
 *    PPPPPPPPPPPPPPPPP   RRRRRRRRRRRRRRRRR        OOOOOOOOO     PPPPPPPPPPPPPPPPP      SSSSSSSSSSSSSSS
 *    P::::::::::::::::P  R::::::::::::::::R     OO:::::::::OO   P::::::::::::::::P   SS:::::::::::::::S
 *    P::::::PPPPPP:::::P R::::::RRRRRR:::::R  OO:::::::::::::OO P::::::PPPPPP:::::P S:::::SSSSSS::::::S
 *    PP:::::P     P:::::PRR:::::R     R:::::RO:::::::OOO:::::::OPP:::::P     P:::::PS:::::S     SSSSSSS
 *      P::::P     P:::::P  R::::R     R:::::RO::::::O   O::::::O  P::::P     P:::::PS:::::S
 *      P::::P     P:::::P  R::::R     R:::::RO:::::O     O:::::O  P::::P     P:::::PS:::::S
 *      P::::PPPPPP:::::P   R::::RRRRRR:::::R O:::::O     O:::::O  P::::PPPPPP:::::P  S::::SSSS
 *      P:::::::::::::PP    R:::::::::::::RR  O:::::O     O:::::O  P:::::::::::::PP    SS::::::SSSSS
 *      P::::PPPPPPPPP      R::::RRRRRR:::::R O:::::O     O:::::O  P::::PPPPPPPPP        SSS::::::::SS
 *      P::::P              R::::R     R:::::RO:::::O     O:::::O  P::::P                   SSSSSS::::S
 *      P::::P              R::::R     R:::::RO:::::O     O:::::O  P::::P                        S:::::S
 *      P::::P              R::::R     R:::::RO::::::O   O::::::O  P::::P                        S:::::S
 *    PP::::::PP          RR:::::R     R:::::RO:::::::OOO:::::::OPP::::::PP          SSSSSSS     S:::::S
 *    P::::::::P          R::::::R     R:::::R OO:::::::::::::OO P::::::::P          S::::::SSSSSS:::::S
 *    P::::::::P          R::::::R     R:::::R   OO:::::::::OO   P::::::::P          S:::::::::::::::SS
 *    PPPPPPPPPP          RRRRRRRR     RRRRRRR     OOOOOOOOO     PPPPPPPPPP           SSSSSSSSSSSSSSS
 *
 * DEV: @ghooost0x2a
 **********************************
 * @author: @ghooost0x2a
 * @founders: @ghooost0x2a / @youareinmymovie
 **********************************
 * ERC721B - Ultra Low Gas
 *****************************************************************
 * ERC721B2FA is based on ERC721B low gas contract by @squuebo_nft
 *****************************************************************
 *      .-----.
 *    .' -   - '.
 *   /  .-. .-.  \
 *   |  | | | |  |
 *    \ \o/ \o/ /
 *   _/    ^    \_
 *  | \  '---'  / |
 *  / /`--. .--`\ \
 * / /'---` `---'\ \
 * '.__.       .__.'
 *     `|     |`
 *      |     \
 *      \      '--.
 *       '.        `\
 *         `'---.   |
 *            ,__) /
 *             `..'
 */

import "./ERC721B2FAEnumLitePausable.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Strings.sol";

contract PROPS is ERC721B2FAEnumLitePausable {
    using Address for address;
    using Strings for uint256;

    event Withdrawn(address indexed payee, uint256 weiAmount);

    uint256 public MAX_SUPPLY = 2 ** 256 - 1;
    uint256 public mint_price = 0;
    bool public MINT_OPEN = false;

    string internal baseURI = "";
    string internal altBaseURI = "";
    string internal uriSuffix = "";
    string internal contract_URI = "";

    address public payment_recipient =
        0xA94F799A34887582987eC8C050f080e252B70A21;

    address internal MASTER_SIGNER = address(0);
    uint256 public MASTER_SIG_VALIDITY = 60;

    mapping(uint256 => bool) public use_static_metadata;

    struct Master_Approval {
        address approved_address;
        uint256 master_sig_timestamp;
    }

    struct EIP712Domain {
        string name;
        string version;
        uint256 chainId;
        address verifyingContract;
    }

    bytes32 constant EIP712DOMAIN_TYPEHASH =
        keccak256(
            "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
        );
    bytes32 constant MA_TYPEHASH =
        keccak256(
            "Master_Approval(address approved_address,uint256 master_sig_timestamp)"
        );
    bytes32 DOMAIN_SEPARATOR;

    constructor() ERC721B2FAEnumLitePausable("PROPS", "PROPS", 1) {
        DOMAIN_SEPARATOR = hash(
            EIP712Domain({
                name: "PROPS",
                version: "1",
                //chainId: block.chainId,
                chainId: 1,
                // verifyingContract: this
                verifyingContract: address(this)
            })
        );
    }

    fallback() external payable {}

    receive() external payable {}

    function hash(
        EIP712Domain memory eip712Domain
    ) internal pure returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    EIP712DOMAIN_TYPEHASH,
                    keccak256(bytes(eip712Domain.name)),
                    keccak256(bytes(eip712Domain.version)),
                    eip712Domain.chainId,
                    eip712Domain.verifyingContract
                )
            );
    }

    function hash(Master_Approval memory m_a) internal pure returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    MA_TYPEHASH,
                    m_a.approved_address,
                    m_a.master_sig_timestamp
                )
            );
    }

    function get_master_signer()
        external
        view
        onlyDelegates
        returns (address master_signer)
    {
        return MASTER_SIGNER;
    }

    function get_signer(
        Master_Approval calldata m_a,
        bytes memory _master_signature
    ) public view returns (address) {
        bytes32 digest = keccak256(
            abi.encodePacked("\x19\x01", DOMAIN_SEPARATOR, hash(m_a))
        );
        (bytes32 r, bytes32 s, uint8 v) = split_signature(_master_signature);
        return ecrecover(digest, v, r, s);
    }

    function split_signature(
        bytes memory sig
    ) public pure returns (bytes32 r, bytes32 s, uint8 v) {
        require(sig.length == 65, "invalid signature length");

        assembly {
            /*
                First 32 bytes stores the length of the signature

                add(sig, 32) = pointer of sig + 32
                effectively, skips first 32 bytes of signature

                mload(p) loads next 32 bytes starting at the memory address p into memory
                */

            // first 32 bytes, after the length prefix
            r := mload(add(sig, 32))
            // second 32 bytes
            s := mload(add(sig, 64))
            // final byte (first byte of the next 32 bytes)
            v := byte(0, mload(add(sig, 96)))
        }

        // implicitly return (r, s, v)
    }

    function tokenURI(
        uint256 tokenId
    ) external view override returns (string memory) {
        require(
            _exists(tokenId),
            "ERC721Metadata: URI query for nonexistent token"
        );

        if (use_static_metadata[tokenId]) {
            return
                bytes(baseURI).length > 0
                    ? string(
                        abi.encodePacked(
                            altBaseURI,
                            tokenId.toString(),
                            uriSuffix
                        )
                    )
                    : "";
        } else {
            return
                bytes(baseURI).length > 0
                    ? string(
                        abi.encodePacked(baseURI, tokenId.toString(), uriSuffix)
                    )
                    : "";
        }
    }

    function setBaseSuffixURI(
        string calldata newBaseURI,
        string calldata newAltBaseURI,
        string calldata newURISuffix,
        string calldata newContractURI
    ) external onlyDelegates {
        baseURI = newBaseURI;
        uriSuffix = newURISuffix;
        altBaseURI = newAltBaseURI;
        contract_URI = newContractURI;
    }

    function contractURI() public view returns (string memory) {
        return contract_URI;
    }

    function toggleMint(bool mint_open) external onlyDelegates {
        MINT_OPEN = mint_open;
    }

    function resetStaticMetadataTokens(
        uint256[] calldata _new_static_tokens
    ) external onlyDelegates {
        for (uint256 i = 0; i < _new_static_tokens.length; i++) {
            use_static_metadata[i] = false;
        }
    }

    function setStaticMetadataTokens(
        uint256[] calldata _new_static_tokens
    ) external onlyDelegates {
        for (uint256 i = 0; i < _new_static_tokens.length; i++) {
            use_static_metadata[i] = true;
        }
    }

    function setMasterSigConf(
        address _master_signer,
        uint256 _master_sig_validity
    ) external onlyDelegates {
        MASTER_SIGNER = _master_signer;
        MASTER_SIG_VALIDITY = _master_sig_validity;
    }

    function setPaymentRecipient(address addy) external onlyDelegates {
        payment_recipient = addy;
    }

    function setReducedMaxSupply(
        uint256 new_max_supply
    ) external onlyDelegates {
        require(new_max_supply < MAX_SUPPLY, "Can only set a lower size.");
        require(
            new_max_supply >= totalSupply(),
            "New supply lower than current totalSupply"
        );
        MAX_SUPPLY = new_max_supply;
    }

    function setMintPrice(uint256 new_mint_price) external onlyDelegates {
        mint_price = new_mint_price;
    }

    // Mint fns
    function ghostyMint(
        uint256 quantity,
        address[] memory recipients
    ) external onlyDelegates {
        if (recipients.length == 1) {
            for (uint256 i = 0; i < quantity; i++) {
                _minty(1, recipients[0]);
            }
        } else {
            require(
                quantity == recipients.length,
                "Number of recipients doesn't match quantity."
            );
            for (uint256 i = 0; i < recipients.length; i++) {
                _minty(1, recipients[i]);
            }
        }
    }

    // Mint
    function propsMint(
        Master_Approval calldata m_a,
        bytes memory _master_sig
    ) external payable {
        require(MINT_OPEN || _isDelegate(_msgSender()), "Mint not open yet!");
        if (mint_price > 0) {
            require(msg.value == mint_price, "Invalid amount of ETH");
        }
        if (MASTER_SIGNER != address(0)) {
            require(
                get_signer(m_a, _master_sig) == MASTER_SIGNER,
                "Invalid master sig!"
            );
            require(
                m_a.approved_address == _msgSender(),
                "Not approved minter!"
            );
            require(
                m_a.master_sig_timestamp + MASTER_SIG_VALIDITY >
                    block.timestamp,
                "Master sig has expired!"
            );
        }
        _minty(1, _msgSender());
    }

    function _minty(uint256 quantity, address addy) internal {
        require(quantity > 0, "Can't mint 0 tokens!");
        require(quantity + totalSupply() <= MAX_SUPPLY, "Max supply reached!");
        for (uint256 i = 0; i < quantity; i++) {
            _safeMint(addy, next());
        }
    }

    function withdraw() external onlyDelegates {
        require(
            payment_recipient != address(0),
            "Don't send ETH to null address"
        );
        uint256 contract_balance = address(this).balance;

        address payable w_addy = payable(payment_recipient);

        (bool success, ) = w_addy.call{value: (contract_balance)}("");
        require(success, "Withdrawal failed!");

        emit Withdrawn(w_addy, contract_balance);
    }
}

File 3 of 22 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";

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

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

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

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

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

File 4 of 22 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

File 5 of 22 : ERC721B2FAEnumLitePausable.sol
// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.14;
/***
 *************************************************************************
 * ERC721B - Ultra Low Gas                                               *
 * @author: @ghooost0x2a                                                 *
 *************************************************************************
 * ERC721B2FA is a modified version of EnumerableLite, by @squuebo_nft   *
 *************************************************************************
 *     :::::::              ::::::::      :::                            *
 *    :+:   :+: :+:    :+: :+:    :+:   :+: :+:                          *
 *    +:+  :+:+  +:+  +:+        +:+   +:+   +:+                         *
 *    +#+ + +:+   +#++:+       +#+    +#++:++#++:                        *
 *    +#+#  +#+  +#+  +#+    +#+      +#+     +#+                        *
 *    #+#   #+# #+#    #+#  #+#       #+#     #+#                        *
 *     #######             ########## ###     ###                        *
 *************************************************************************/

import "./ERC721B.sol";
import "./IBatch.sol";
import "./UpdatableOperatorFilterer.sol";
import "./RevokableDefaultOperatorFilterer.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol";

abstract contract ERC721B2FAEnumLitePausable is
    ERC721B,
    RevokableDefaultOperatorFilterer,
    IBatch,
    IERC721Enumerable
{
    constructor(
        string memory _name,
        string memory _symbol,
        uint256 _offset
    ) ERC721B(_name, _symbol, _offset) {}

    function setDefaultRoyalty(
        address receiver,
        uint96 feeNumerator
    ) external onlyDelegates {
        _setDefaultRoyalty(receiver, feeNumerator);
    }

    function burn(uint256 tokenId) public virtual {
        require(
            _isApprovedOrOwner(_msgSender(), tokenId),
            "ERC721: caller is not token owner or approved"
        );
        _burn(tokenId);
    }

    function deleteDefaultRoyalty() external onlyDelegates {
        _deleteDefaultRoyalty();
    }

    function setTokenRoyalty(
        uint256 tokenId,
        address receiver,
        uint96 feeNumerator
    ) external onlyDelegates {
        _setTokenRoyalty(tokenId, receiver, feeNumerator);
    }

    function resetTokenRoyalty(uint256 tokenId) external onlyDelegates {
        _resetTokenRoyalty(tokenId);
    }

    function isOwnerOf(
        address account,
        uint256[] calldata tokenIds
    ) external view override returns (bool) {
        for (uint256 i; i < tokenIds.length; ++i) {
            if (_owners[tokenIds[i]] != account) return false;
        }

        return true;
    }

    function owner()
        public
        view
        virtual
        override(Ownable, UpdatableOperatorFilterer)
        returns (address)
    {
        return Ownable.owner();
    }

    function supportsInterface(
        bytes4 interfaceId
    ) public view virtual override(IERC165, ERC721B) returns (bool) {
        return
            interfaceId == type(IERC721Enumerable).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    function tokenOfOwnerByIndex(
        address owner_addy,
        uint256 index
    ) public view override returns (uint256 tokenId) {
        uint256 count;
        for (uint256 i; i < _owners.length; ++i) {
            if (owner_addy == _owners[i]) {
                if (count == index) return i;
                else ++count;
            }
        }

        require(false, "ERC721Enumerable: owner index out of bounds");
    }

    function tokenByIndex(
        uint256 index
    ) external view virtual override returns (uint256) {
        require(
            index < totalSupply(),
            "ERC721Enumerable: global index out of bounds"
        );
        return index;
    }

    function totalSupply()
        public
        view
        override(ERC721B, IERC721Enumerable)
        returns (uint256)
    {
        return _owners.length - _offset;
    }

    function transferBatch(
        address from,
        address to,
        uint256[] calldata tokenIds,
        bytes calldata data
    ) external override {
        for (uint256 i; i < tokenIds.length; ++i) {
            safeTransferFrom(from, to, tokenIds[i], data);
        }
    }

    function walletOfOwner(
        address account
    ) external view override returns (uint256[] memory) {
        uint256 quantity = balanceOf(account);
        uint256[] memory wallet = new uint256[](quantity);
        for (uint256 i; i < quantity; ++i) {
            wallet[i] = tokenOfOwnerByIndex(account, i);
        }
        return wallet;
    }
}

File 6 of 22 : IERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

File 7 of 22 : RevokableDefaultOperatorFilterer.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import "./RevokableOperatorFilterer.sol";

/**
 * @title  RevokableDefaultOperatorFilterer
 * @notice Inherits from RevokableOperatorFilterer and automatically subscribes to the default OpenSea subscription.
 *         Note that OpenSea will disable creator fee enforcement if filtered operators begin fulfilling orders
 *         on-chain, eg, if the registry is revoked or bypassed.
 */
abstract contract RevokableDefaultOperatorFilterer is
    RevokableOperatorFilterer
{
    address constant DEFAULT_SUBSCRIPTION =
        address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);

    constructor()
        RevokableOperatorFilterer(
            0x000000000000AAeB6D7670E522A718067333cd4E,
            DEFAULT_SUBSCRIPTION,
            true
        )
    {}
}

File 8 of 22 : UpdatableOperatorFilterer.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import "./IOperatorFilterRegistry.sol";

/**
 * @title  UpdatableOperatorFilterer
 * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another
 *         registrant's entries in the OperatorFilterRegistry. This contract allows the Owner to update the
 *         OperatorFilterRegistry address via updateOperatorFilterRegistryAddress, including to the zero address,
 *         which will bypass registry checks.
 *         Note that OpenSea will still disable creator fee enforcement if filtered operators begin fulfilling orders
 *         on-chain, eg, if the registry is revoked or bypassed.
 * @dev    This smart contract is meant to be inherited by token contracts so they can use the following:
 *         - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.
 *         - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.
 */
abstract contract UpdatableOperatorFilterer {
    error OperatorNotAllowed(address operator);
    error OnlyOwner();

    IOperatorFilterRegistry public operatorFilterRegistry;

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

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

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

    /**
     * @notice Update the address that the contract will make OperatorFilter checks against. When set to the zero
     *         address, checks will be bypassed. OnlyOwner.
     */
    function updateOperatorFilterRegistryAddress(address newRegistry)
        public
        virtual
    {
        if (msg.sender != owner()) {
            revert OnlyOwner();
        }
        operatorFilterRegistry = IOperatorFilterRegistry(newRegistry);
    }

    /**
     * @dev assume the contract has an owner, but leave specific Ownable implementation up to inheriting contract
     */
    function owner() public view virtual returns (address);

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

File 9 of 22 : IBatch.sol
// SPDX-License-Identifier: BSD-3-Clause

pragma solidity ^0.8.13;

interface IBatch {
    function isOwnerOf(address account, uint256[] calldata tokenIds)
        external
        view
        returns (bool);

    function transferBatch(
        address from,
        address to,
        uint256[] calldata tokenIds,
        bytes calldata data
    ) external;

    function walletOfOwner(address account)
        external
        view
        returns (uint256[] memory);
}

File 10 of 22 : ERC721B.sol
// SPDX-License-Identifier: BSD-3-Clause

pragma solidity ^0.8.15;

/****************************************
 * @author: @ghooost0x2a                *
 * @team:   GoldenX                     *
 ****************************************
 *   Blimpie-ERC721 provides low-gas    *
 *           mints + transfers          *
 ****************************************/
//INTERFACES
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol";
//CONTRACTS
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts/token/common/ERC2981.sol";
import "./Delegated.sol";

abstract contract ERC721B is
    Context,
    ERC165,
    ERC2981,
    IERC721,
    IERC721Metadata,
    Delegated
{
    using Address for address;

    string private _name;
    string private _symbol;

    uint256 internal _offset;
    address[] internal _owners;

    mapping(uint256 => address) private _tokenApprovals;
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    constructor(string memory name_, string memory symbol_, uint256 offset) {
        _name = name_;
        _symbol = symbol_;
        _offset = offset;
        for (uint256 i; i < _offset; ++i) {
            _owners.push(address(0));
        }
    }

    //public
    function balanceOf(
        address owner
    ) public view virtual override returns (uint256) {
        require(
            owner != address(0),
            "ERC721: balance query for the zero address"
        );

        uint256 count;
        for (uint256 i; i < _owners.length; ++i) {
            if (owner == _owners[i]) ++count;
        }
        return count;
    }

    function name() external view virtual override returns (string memory) {
        return _name;
    }

    function next() public view returns (uint256) {
        return _owners.length;
    }

    function ownerOf(
        uint256 tokenId
    ) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(
            owner != address(0),
            "ERC721: owner query for nonexistent token"
        );
        return owner;
    }

    function supportsInterface(
        bytes4 interfaceId
    ) public view virtual override(ERC165, IERC165, ERC2981) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    function symbol() external view virtual override returns (string memory) {
        return _symbol;
    }

    function totalSupply() public view virtual returns (uint256) {
        return _owners.length - _offset;
    }

    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");
        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    function getApproved(
        uint256 tokenId
    ) public view virtual override returns (address) {
        require(
            _exists(tokenId),
            "ERC721: approved query for nonexistent token"
        );
        return _tokenApprovals[tokenId];
    }

    function isApprovedForAll(
        address owner,
        address operator
    ) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    function setApprovalForAll(
        address operator,
        bool approved
    ) public virtual override {
        require(operator != _msgSender(), "ERC721: approve to caller");
        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_msgSender(), operator, approved);
    }

    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(
            _isApprovedOrOwner(_msgSender(), tokenId),
            "ERC721: transfer caller is not owner nor approved"
        );
        _transfer(from, to, tokenId);
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(
            _isApprovedOrOwner(_msgSender(), tokenId),
            "ERC721: transfer caller is not owner nor approved"
        );
        _safeTransfer(from, to, tokenId, _data);
    }

    //internal
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(
            _checkOnERC721Received(from, to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return tokenId < _owners.length && _owners[tokenId] != address(0);
    }

    function _isApprovedOrOwner(
        address spender,
        uint256 tokenId
    ) internal view virtual returns (bool) {
        require(
            _exists(tokenId),
            "ERC721: operator query for nonexistent token"
        );
        address owner = ownerOf(tokenId);
        return (spender == owner ||
            getApproved(tokenId) == spender ||
            isApprovedForAll(owner, spender));
    }

    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);
        _owners.push(to);

        emit Transfer(address(0), to, tokenId);
    }

    function _burn(uint256 tokenId) internal virtual {
        address owner = ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);
        _owners[tokenId] = address(0);
        _resetTokenRoyalty(tokenId);
        emit Transfer(owner, address(0), tokenId);
    }

    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(
            ownerOf(tokenId) == from,
            "ERC721: transfer of token that is not own"
        );
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ownerOf(tokenId), to, tokenId);
    }

    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try
                IERC721Receiver(to).onERC721Received(
                    _msgSender(),
                    from,
                    tokenId,
                    _data
                )
            returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert(
                        "ERC721: transfer to non ERC721Receiver implementer"
                    );
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

File 11 of 22 : Math.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

File 12 of 22 : IOperatorFilterRegistry.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

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

File 13 of 22 : RevokableOperatorFilterer.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import "./UpdatableOperatorFilterer.sol";
import "./IOperatorFilterRegistry.sol";

/**
 * @title  RevokableOperatorFilterer
 * @notice This contract is meant to allow contracts to permanently skip OperatorFilterRegistry checks if desired. The
 *         Registry itself has an "unregister" function, but if the contract is ownable, the owner can re-register at
 *         any point. As implemented, this abstract contract allows the contract owner to permanently skip the
 *         OperatorFilterRegistry checks by calling revokeOperatorFilterRegistry. Once done, the registry
 *         address cannot be further updated.
 *         Note that OpenSea will still disable creator fee enforcement if filtered operators begin fulfilling orders
 *         on-chain, eg, if the registry is revoked or bypassed.
 */
abstract contract RevokableOperatorFilterer is UpdatableOperatorFilterer {
    error RegistryHasBeenRevoked();
    error InitialRegistryAddressCannotBeZeroAddress();

    bool public isOperatorFilterRegistryRevoked;

    constructor(
        address _registry,
        address subscriptionOrRegistrantToCopy,
        bool subscribe
    )
        UpdatableOperatorFilterer(
            _registry,
            subscriptionOrRegistrantToCopy,
            subscribe
        )
    {
        // don't allow creating a contract with a permanently revoked registry
        if (_registry == address(0)) {
            revert InitialRegistryAddressCannotBeZeroAddress();
        }
    }

    function _checkFilterOperator(address operator)
        internal
        view
        virtual
        override
    {
        if (address(operatorFilterRegistry) != address(0)) {
            super._checkFilterOperator(operator);
        }
    }

    /**
     * @notice Update the address that the contract will make OperatorFilter checks against. When set to the zero
     *         address, checks will be permanently bypassed, and the address cannot be updated again. OnlyOwner.
     */
    function updateOperatorFilterRegistryAddress(address newRegistry)
        public
        override
    {
        if (msg.sender != owner()) {
            revert OnlyOwner();
        }
        // if registry has been revoked, do not allow further updates
        if (isOperatorFilterRegistryRevoked) {
            revert RegistryHasBeenRevoked();
        }

        operatorFilterRegistry = IOperatorFilterRegistry(newRegistry);
    }

    /**
     * @notice Revoke the OperatorFilterRegistry address, permanently bypassing checks. OnlyOwner.
     */
    function revokeOperatorFilterRegistry() public {
        if (msg.sender != owner()) {
            revert OnlyOwner();
        }
        // if registry has been revoked, do not allow further updates
        if (isOperatorFilterRegistryRevoked) {
            revert RegistryHasBeenRevoked();
        }

        // set to zero address to bypass checks
        operatorFilterRegistry = IOperatorFilterRegistry(address(0));
        isOperatorFilterRegistryRevoked = true;
    }
}

File 14 of 22 : Delegated.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

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

contract Delegated is Ownable {
    mapping(address => bool) internal _delegates;

    modifier onlyDelegates() {
        require(_delegates[msg.sender], "Invalid delegate");
        _;
    }

    constructor() Ownable() {
        setDelegate(owner(), true);
    }

    //onlyOwner
    function isDelegate(address addr) external view onlyOwner returns (bool) {
        return _delegates[addr];
    }

    function _isDelegate(address addr) internal view returns (bool) {
        return _delegates[addr];
    }

    function setDelegate(address addr, bool isDelegate_) public onlyOwner {
        _delegates[addr] = isDelegate_;
    }

    function transferOwnership(address newOwner)
        public
        virtual
        override
        onlyOwner
    {
        _delegates[newOwner] = true;
        super.transferOwnership(newOwner);
    }
}

File 15 of 22 : ERC2981.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol)

pragma solidity ^0.8.0;

import "../../interfaces/IERC2981.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.
 *
 * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for
 * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.
 *
 * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the
 * fee is specified in basis points by default.
 *
 * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See
 * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to
 * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.
 *
 * _Available since v4.5._
 */
abstract contract ERC2981 is IERC2981, ERC165 {
    struct RoyaltyInfo {
        address receiver;
        uint96 royaltyFraction;
    }

    RoyaltyInfo private _defaultRoyaltyInfo;
    mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {
        return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @inheritdoc IERC2981
     */
    function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {
        RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];

        if (royalty.receiver == address(0)) {
            royalty = _defaultRoyaltyInfo;
        }

        uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();

        return (royalty.receiver, royaltyAmount);
    }

    /**
     * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a
     * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an
     * override.
     */
    function _feeDenominator() internal pure virtual returns (uint96) {
        return 10000;
    }

    /**
     * @dev Sets the royalty information that all ids in this contract will default to.
     *
     * Requirements:
     *
     * - `receiver` cannot be the zero address.
     * - `feeNumerator` cannot be greater than the fee denominator.
     */
    function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
        require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
        require(receiver != address(0), "ERC2981: invalid receiver");

        _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);
    }

    /**
     * @dev Removes default royalty information.
     */
    function _deleteDefaultRoyalty() internal virtual {
        delete _defaultRoyaltyInfo;
    }

    /**
     * @dev Sets the royalty information for a specific token id, overriding the global default.
     *
     * Requirements:
     *
     * - `receiver` cannot be the zero address.
     * - `feeNumerator` cannot be greater than the fee denominator.
     */
    function _setTokenRoyalty(
        uint256 tokenId,
        address receiver,
        uint96 feeNumerator
    ) internal virtual {
        require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
        require(receiver != address(0), "ERC2981: Invalid parameters");

        _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);
    }

    /**
     * @dev Resets royalty information for the token id back to the global default.
     */
    function _resetTokenRoyalty(uint256 tokenId) internal virtual {
        delete _tokenRoyaltyInfo[tokenId];
    }
}

File 16 of 22 : ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

File 17 of 22 : Context.sol
// 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;
    }
}

File 18 of 22 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @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);
}

File 19 of 22 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 20 of 22 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

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

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

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

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

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

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

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

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

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

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

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

File 21 of 22 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

File 22 of 22 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 23 of 22 : IERC2981.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)

pragma solidity ^0.8.0;

import "../utils/introspection/IERC165.sol";

/**
 * @dev Interface for the NFT Royalty Standard.
 *
 * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
 * support for royalty payments across all NFT marketplaces and ecosystem participants.
 *
 * _Available since v4.5._
 */
interface IERC2981 is IERC165 {
    /**
     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount);
}

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

Contract Security Audit

Contract ABI

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.