ETH Price: $3,447.98 (+1.45%)

Token

Bunny Babies (BUN)
 

Overview

Max Total Supply

1,109 BUN

Holders

259

Market

Volume (24H)

N/A

Min Price (24H)

N/A

Max Price (24H)

N/A
Filtered by Token Holder
*大鹏一日同风起扶摇直上九万里.eth
Balance
7 BUN
0xFBbC493E85374eE484862Cae45D20A709a68D2D3
Loading...
Loading
Loading...
Loading
Loading...
Loading

Click here to update the token information / general information
# Exchange Pair Price  24H Volume % Volume

Contract Source Code Verified (Exact Match)

Contract Name:
BunnyBabies

Compiler Version
v0.8.11+commit.d7f03943

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion
File 1 of 18 : BunnyBabies.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./ERC721Tradable.sol";

/**
 * Bunny Babies by crocpot.io
 */
contract BunnyBabies is ERC721Tradable {
    constructor(address _proxyRegistryAddress)
    ERC721Tradable("Bunny Babies", "BUN", _proxyRegistryAddress)
    {}

    function baseTokenURI() override public pure returns (string memory) {
        return "https://bunnies.crocpot.io/token/";
    }

    function contractURI() public pure returns (string memory) {
        return "https://bunnies.crocpot.io/token";
    }
}

File 2 of 18 : NativeMetaTransaction.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import {SafeMath} from  "@openzeppelin/contracts/utils/math/SafeMath.sol";
import {EIP712Base} from "./EIP712Base.sol";

contract NativeMetaTransaction is EIP712Base {
    using SafeMath for uint256;
    bytes32 private constant META_TRANSACTION_TYPEHASH = keccak256(
        bytes(
            "MetaTransaction(uint256 nonce,address from,bytes functionSignature)"
        )
    );
    event MetaTransactionExecuted(
        address userAddress,
        address payable relayerAddress,
        bytes functionSignature
    );
    mapping(address => uint256) nonces;

    /*
     * Meta transaction structure.
     * No point of including value field here as if user is doing value transfer then he has the funds to pay for gas
     * He should call the desired function directly in that case.
     */
    struct MetaTransaction {
        uint256 nonce;
        address from;
        bytes functionSignature;
    }

    function executeMetaTransaction(
        address userAddress,
        bytes memory functionSignature,
        bytes32 sigR,
        bytes32 sigS,
        uint8 sigV
    ) public payable returns (bytes memory) {
        MetaTransaction memory metaTx = MetaTransaction({
            nonce: nonces[userAddress],
            from: userAddress,
            functionSignature: functionSignature
        });

        require(
            verify(userAddress, metaTx, sigR, sigS, sigV),
            "Signer and signature do not match"
        );

        // increase nonce for user (to avoid re-use)
        nonces[userAddress] = nonces[userAddress].add(1);

        emit MetaTransactionExecuted(
            userAddress,
            payable(msg.sender),
            functionSignature
        );

        // Append userAddress and relayer address at the end to extract it from calling context
        (bool success, bytes memory returnData) = address(this).call(
            abi.encodePacked(functionSignature, userAddress)
        );
        require(success, "Function call not successful");

        return returnData;
    }

    function hashMetaTransaction(MetaTransaction memory metaTx)
        internal
        pure
        returns (bytes32)
    {
        return
            keccak256(
                abi.encode(
                    META_TRANSACTION_TYPEHASH,
                    metaTx.nonce,
                    metaTx.from,
                    keccak256(metaTx.functionSignature)
                )
            );
    }

    function getNonce(address user) public view returns (uint256 nonce) {
        nonce = nonces[user];
    }

    function verify(
        address signer,
        MetaTransaction memory metaTx,
        bytes32 sigR,
        bytes32 sigS,
        uint8 sigV
    ) internal view returns (bool) {
        require(signer != address(0), "NativeMetaTransaction: INVALID_SIGNER");
        return
            signer ==
            ecrecover(
                toTypedMessageHash(hashMetaTransaction(metaTx)),
                sigV,
                sigR,
                sigS
            );
    }
}

File 3 of 18 : Initializable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

contract Initializable {
    bool inited = false;

    modifier initializer() {
        require(!inited, "already inited");
        _;
        inited = true;
    }
}

File 4 of 18 : EIP712Base.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

contract EIP712Base is Initializable {
    struct EIP712Domain {
        string name;
        string version;
        address verifyingContract;
        bytes32 salt;
    }

    string constant public ERC712_VERSION = "1";

    bytes32 internal constant EIP712_DOMAIN_TYPEHASH = keccak256(
        bytes(
            "EIP712Domain(string name,string version,address verifyingContract,bytes32 salt)"
        )
    );
    bytes32 internal domainSeperator;

    // supposed to be called once while initializing.
    // one of the contracts that inherits this contract follows proxy pattern
    // so it is not possible to do this in a constructor
    function _initializeEIP712(
        string memory name
    )
        internal
        initializer
    {
        _setDomainSeperator(name);
    }

    function _setDomainSeperator(string memory name) internal {
        domainSeperator = keccak256(
            abi.encode(
                EIP712_DOMAIN_TYPEHASH,
                keccak256(bytes(name)),
                keccak256(bytes(ERC712_VERSION)),
                address(this),
                bytes32(getChainId())
            )
        );
    }

    function getDomainSeperator() public view returns (bytes32) {
        return domainSeperator;
    }

    function getChainId() public view returns (uint256) {
        uint256 id;
        assembly {
            id := chainid()
        }
        return id;
    }

    /**
     * Accept message hash and returns hash message in EIP712 compatible form
     * So that it can be used to recover signer from signature signed using EIP712 formatted data
     * https://eips.ethereum.org/EIPS/eip-712
     * "\\x19" makes the encoding deterministic
     * "\\x01" is the version byte to make it compatible to EIP-191
     */
    function toTypedMessageHash(bytes32 messageHash)
        internal
        view
        returns (bytes32)
    {
        return
            keccak256(
                abi.encodePacked("\x19\x01", getDomainSeperator(), messageHash)
            );
    }
}

File 5 of 18 : ContentMixin.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

abstract contract ContextMixin {
    function msgSender()
        internal
        view
        returns (address payable sender)
    {
        if (msg.sender == address(this)) {
            bytes memory array = msg.data;
            uint256 index = msg.data.length;
            assembly {
                // Load the 32 bytes word from memory with the address on the lower 20 bytes, and mask those.
                sender := and(
                    mload(add(array, index)),
                    0xffffffffffffffffffffffffffffffffffffffff
                )
            }
        } else {
            sender = payable(msg.sender);
        }
        return sender;
    }
}

File 6 of 18 : ERC721Tradable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";

import "./common/meta-transactions/ContentMixin.sol";
import "./common/meta-transactions/NativeMetaTransaction.sol";

contract OwnableDelegateProxy {}

/**
 * Used to delegate ownership of a contract to another address, to save on unneeded transactions to approve contract use for users
 */
contract ProxyRegistry {
    mapping(address => OwnableDelegateProxy) public proxies;
}

/**
 * @title ERC721Tradable
 * ERC721Tradable - ERC721 contract that whitelists a trading address, and has minting functionality.
 */
abstract contract ERC721Tradable is ERC721, ContextMixin, NativeMetaTransaction, Ownable {
    using SafeMath for uint256;
    using Counters for Counters.Counter;

    /**
     * We rely on the OZ Counter util to keep track of the next available ID.
     * We track the nextTokenId instead of the currentTokenId to save users on gas costs. 
     * Read more about it here: https://shiny.mirror.xyz/OUampBbIz9ebEicfGnQf5At_ReMHlZy0tB4glb9xQ0E
     */ 
    Counters.Counter private _nextTokenId;
    address proxyRegistryAddress;

    constructor(
        string memory _name,
        string memory _symbol,
        address _proxyRegistryAddress
    ) ERC721(_name, _symbol) {
        proxyRegistryAddress = _proxyRegistryAddress;
        // nextTokenId is initialized to 1, since starting at 0 leads to higher gas cost for the first minter
        _nextTokenId.increment();
        _initializeEIP712(_name);
    }

    /**
     * @dev Mints a token to an address with a tokenURI.
     * @param _to address of the future owner of the token
     */
    function mintTo(address _to) public onlyOwner {
        uint256 currentTokenId = _nextTokenId.current();
        _nextTokenId.increment();
        _safeMint(_to, currentTokenId);
    }

    /**
        @dev Returns the total tokens minted so far.
        1 is always subtracted from the Counter since it tracks the next available tokenId.
     */
    function totalSupply() public view returns (uint256) {
        return _nextTokenId.current() - 1;
    }

    function baseTokenURI() virtual public pure returns (string memory);

    function tokenURI(uint256 _tokenId) override public pure returns (string memory) {
        return string(abi.encodePacked(baseTokenURI(), Strings.toString(_tokenId)));
    }

    /**
     * Override isApprovedForAll to whitelist user's OpenSea proxy accounts to enable gas-less listings.
     */
    function isApprovedForAll(address owner, address operator)
        override
        public
        view
        returns (bool)
    {
        // Whitelist OpenSea proxy contract for easy trading.
        ProxyRegistry proxyRegistry = ProxyRegistry(proxyRegistryAddress);
        if (address(proxyRegistry.proxies(owner)) == operator) {
            return true;
        }

        return super.isApprovedForAll(owner, operator);
    }

    /**
     * This is used instead of msg.sender as transactions won't be sent by the original token owner, but by OpenSea.
     */
    function _msgSender()
        internal
        override
        view
        returns (address sender)
    {
        return ContextMixin.msgSender();
    }
}

File 7 of 18 : SafeMath.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

File 8 of 18 : 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 9 of 18 : 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 10 of 18 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

File 11 of 18 : Counters.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

File 12 of 18 : 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 13 of 18 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 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 functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 14 of 18 : 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 15 of 18 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 16 of 18 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

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

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

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

    /**
     * @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 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);

    /**
     * @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;
}

File 17 of 18 : ERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

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

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

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    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;
    }

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

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

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

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

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.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);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

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

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transfer(from, to, tokenId);
    }

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

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @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.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    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");
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    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"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    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);

        _balances[to] += 1;
        _owners[tokenId] = to;

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

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

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

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

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

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721.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);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _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;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * 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, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

File 18 of 18 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

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

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

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

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "evmVersion": "london",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_proxyRegistryAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"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":false,"internalType":"address","name":"userAddress","type":"address"},{"indexed":false,"internalType":"address payable","name":"relayerAddress","type":"address"},{"indexed":false,"internalType":"bytes","name":"functionSignature","type":"bytes"}],"name":"MetaTransactionExecuted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"ERC712_VERSION","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseTokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"userAddress","type":"address"},{"internalType":"bytes","name":"functionSignature","type":"bytes"},{"internalType":"bytes32","name":"sigR","type":"bytes32"},{"internalType":"bytes32","name":"sigS","type":"bytes32"},{"internalType":"uint8","name":"sigV","type":"uint8"}],"name":"executeMetaTransaction","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getChainId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getDomainSeperator","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getNonce","outputs":[{"internalType":"uint256","name":"nonce","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"}],"name":"mintTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"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":"pure","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

Deployed Bytecode

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c1

-----Decoded View---------------
Arg [0] : _proxyRegistryAddress (address): 0xa5409ec958C83C3f309868babACA7c86DCB077c1

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c1


Loading...
Loading
Loading...
Loading
[ Download: CSV Export  ]
[ Download: CSV Export  ]

A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.