Contract 0x025C6da5BD0e6A5dd1350fda9e3B6a614B205a1F 5

 
 
Txn Hash
Method
Block
From
To
Value
0x31d77cd490a05e23a514dc7c66321b3ed676297a91a477fe235c5ea07d9397f6Claim Tokens149673662022-06-15 12:00:14106 days 2 hrs agoENS Name finality8.eth IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.02262061 69.69324187
0xfd80d49abff27d9e6064c89248ee444c83a543d18a5c9c9472d9218e5014ae6fClaim Tokens149673402022-06-15 11:51:01106 days 2 hrs ago0x4d9ab818cada0a45db3b027ca646cd6e1d6c3536 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.01979285 68.24723967
0xe4ee340a4e28e1e7478d306a4a0469e767871a10030ebaed89de89b417ec518eClaim Tokens149665762022-06-15 8:34:53106 days 5 hrs ago0x8481be8cf9d472ee513aaa850702ee37fe27c063 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.02732298 83.27613302
0xd961fbe61bf10f47bee964080d822d02b18cba266b0c8c71eb07fac3ecd9f7a9Claim Tokens149663602022-06-15 7:42:44106 days 6 hrs ago0x11b540e8c00ee1b1b383e8c463b3d98155360baa IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.0068365 42.0878897
0x5fea036d60e40cf3bc6a58b5c251b86f44c9363ec757aa266ac562f55388b29bClaim Tokens149663422022-06-15 7:36:48106 days 6 hrs ago0x66e5a40c1d2f33806c7fa833b3be951c9bcc8127 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00634235 30.5
0x4b9fee214c25b5d709544c47ed90c56591e87181eb0397f311b7f6feed5a1a4cClaim Tokens149663102022-06-15 7:26:44106 days 6 hrs ago0x2a838fb71a5c6987bf09123ca65841874a663444 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00271454 21.05012718
0xcaaa5bc290d0851e88aba3159b62e93aabd89294f503201513194c21f30314cbClaim Tokens149662192022-06-15 7:06:06106 days 6 hrs ago0x43da2bd51a514b3a3c1f90b5b482e99b0f787669 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00470288 29.89073856
0xcbf057f45c069a346ed34fb6ba1df9222dffd6ec6d523a138d855b607f76d72aClaim Tokens149661562022-06-15 6:49:31106 days 7 hrs ago0x33081eded8756806189fc36b4011f5cd6764c556 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00373746 26.51566102
0xa5d3722cc1aac2910b56df91ee5286c33e6e067f148b538ca8cf070c3ae4eb74Claim Tokens149660202022-06-15 6:13:54106 days 7 hrs ago0x33081eded8756806189fc36b4011f5cd6764c556 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00580324 36.57312866
0x8914d52f154bcfb5bcfa4f6881789dba5a18a0ef9d6c10452119568fab68d4e6Claim Tokens149654422022-06-15 3:47:48106 days 10 hrs ago0x9c707b4ee658242a7e64a00b26954ba98e6bf240 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00322966 25.73004666
0xcfa951fdca8a82d5680df032c10de6b601959cfeecb0da468c20fa97f81dc2c7Claim Tokens149652392022-06-15 2:57:49106 days 11 hrs ago0xba5df4294a09cc7add4bc5db809face502ea16b3 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00477511 29.45602656
0xcaa857fcc08a2bf94c37ff973ff5956a7603935f795a05ae2e4334f515ff5aeeClaim Tokens149651552022-06-15 2:35:56106 days 11 hrs agoENS Name acbayc.eth IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00600369 42.91051642
0xcc43d025db6749ec4ae833ccdb79e68184bb6161c32eb14832d88a935fe76f2aClaim Tokens149644302022-06-14 23:30:17106 days 14 hrs ago0x06d0f03416fbc95a69bffa1374e597f8aef752d8 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.0110571 42.23477836
0xdfa4399b5b47fcbdfbcbf7c50d1d1b7ba7ea0b7326ff99bedb4ee15d18d575c9Claim Tokens149643142022-06-14 22:57:59106 days 15 hrs ago0xc53f024f1d7070eb8ef5a2dcb9bd477fb6ec0315 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.01045625 36.05392858
0xaabf2fa6d986fcb294d80f6886af4170865925b9ccd4ec28e7c5a006f5bf2143Claim Tokens149642322022-06-14 22:37:53106 days 15 hrs ago0x84563f9c6d9e557763d2b197c156c07ff9ebefb5 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00827083 28.51846612
0x164153a8a3fa6fbe16c1103a2383a626976da6be11ce7c673d29b4ada94ea6c8Claim Tokens149641832022-06-14 22:27:00106 days 15 hrs ago0x8c0c26976792db82b941db43cabea86fa5522e1c IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00956867 32.99349175
0x64cdf4fb5a127694ba56c2cc27da9c5ed4dc17825682baf83a3740ec15030be5Claim Tokens149640102022-06-14 21:43:40106 days 16 hrs ago0xb38071b23f0fa92cf9e1bd6feec5a5f9821f3ccc IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00537714 42.83858036
0xd69583046cd18cf0cb1d00ddbbfa950ed4d826ee0a9358abe97ca91ca919078cClaim Tokens149637092022-06-14 20:35:11106 days 17 hrs ago0xfafa9eff19d1d0c8d6be62dfd9fece497c58b2b5 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.00575701 41.05230263
0xbf05915df8e771730c7b4e9a8d04a1277db7ee343216bf80c0e043c8e099dd2dClaim Tokens149631732022-06-14 18:29:20106 days 19 hrs ago0x62022a3cb21c435fa9f0963999ab399e7701c5d1 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.0104127 39.0585851
0xb419551c9c1ccd41947823a228c570755dac49775a5a17d0abe3f1eb0bdc42a4Claim Tokens149622532022-06-14 14:38:49106 days 23 hrs ago0xa3f50161c5f39e60c919feb0c5ec7d7a3fb7509b IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.01895808 65.36888846
0x1f32adf9f65cd31bfcc1ef0ebde1969a7a900e8b81b5e4f5bc452d4a8dad54dcClaim Tokens149622472022-06-14 14:36:52106 days 23 hrs ago0xe112b0e354370feb70423515fe5fb9d779b582ae IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.01287861 57.62373139
0x943fd03adaa1dc0308772148e3c8a0d5edd91962ab8790f45a4d227d74c67b3fClaim Tokens149622362022-06-14 14:34:21106 days 23 hrs ago0xb561af058cad791e4d429691dcbf5c5e5b6278e9 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.0198123 68.31427538
0xad8911c7b03efb51c806d9de8e209f39706eafb2a0e3b10505a471fcf5180a05Claim Tokens149622202022-06-14 14:30:13106 days 23 hrs ago0x4f70e22652ddf8715bca252d9b6ce1f2ef6b1882 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.01520096 68.01476944
0x2a5f44e63a93eabe6b75504715eead836d321b357dcfcb8fbb7ff3eb05fafb3cClaim Tokens149622132022-06-14 14:27:23106 days 23 hrs ago0xd6f487c29be27daec9b4c44aa37d5e0902266a5b IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.01079611 48.30585033
0x5aa4301676c30cba66cbbf9651030f42c9c56d22dd03681c97cef05b96bb2cfaClaim Tokens149603872022-06-14 6:42:10107 days 7 hrs ago0xb8b5709d1f161a353bb5e902c0ffd761bc4d8074 IN  0x025c6da5bd0e6a5dd1350fda9e3b6a614b205a1f0 Ether0.01092944 41.7642317
[ Download CSV Export 
View more zero value Internal Transactions in Advanced View mode
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
AirdropGrapesToken

Compiler Version
v0.8.10+commit.fc410830

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 16 : AirdropGrapesToken.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";

contract AirdropGrapesToken is Ownable, Pausable {

    using SafeERC20 for IERC20;
    IERC20 public immutable grapesToken;

    ERC721Enumerable public immutable alpha;
    ERC721Enumerable public immutable beta;
    ERC721Enumerable public immutable gamma;

    uint256 public immutable ALPHA_DISTRIBUTION_AMOUNT;
    uint256 public immutable BETA_DISTRIBUTION_AMOUNT;
    uint256 public immutable GAMMA_DISTRIBUTION_AMOUNT;

    uint256 public totalClaimed;

    uint256 public claimDuration;
    uint256 public claimStartTime;

    mapping (uint256 => bool) public alphaClaimed;
    mapping (uint256 => bool) public betaClaimed;
    mapping (uint256 => bool) public gammaClaimed;

    event ClaimStart(
        uint256 _claimDuration,
        uint256 _claimStartTime
    );

    event AlphaClaimed(
        uint256 indexed tokenId,
        address indexed account,
        uint256 timestamp
    );

    event BetaClaimed(
        uint256 indexed tokenId,
        address indexed account,
        uint256 timestamp
    );

    event GammaClaimed(
        uint256 indexed tokenId,
        address indexed account,
        uint256 timestamp
    );

    event AirDrop(
        address indexed account,
        uint256 indexed amount,
        uint256 timestamp
    );


    constructor(
        address _grapesTokenAddress,
        address _alphaContractAddress,
        address _betaContractAddress,
        address _gammaContractAddress,
        uint256 _ALPHA_DISTRIBUTION_AMOUNT,
        uint256 _BETA_DISTRIBUTION_AMOUNT,
        uint256 _GAMMA_DISTRIBUTION_AMOUNT
    ) {
        require(_grapesTokenAddress != address(0), "The Grapes token address can't be 0");
        require(_alphaContractAddress != address(0), "The Alpha contract address can't be 0");
        require(_betaContractAddress != address(0), "The Beta contract address can't be 0");
        require(_gammaContractAddress != address(0), "The Gamma contract address can't be 0");

        grapesToken = IERC20(_grapesTokenAddress);
        alpha = ERC721Enumerable(_alphaContractAddress);
        beta = ERC721Enumerable(_betaContractAddress);
        gamma = ERC721Enumerable(_gammaContractAddress);
        ALPHA_DISTRIBUTION_AMOUNT = _ALPHA_DISTRIBUTION_AMOUNT;
        BETA_DISTRIBUTION_AMOUNT = _BETA_DISTRIBUTION_AMOUNT;
        GAMMA_DISTRIBUTION_AMOUNT = _GAMMA_DISTRIBUTION_AMOUNT;

        _pause();
    }

    function startClaimablePeriod(uint256 _claimDuration) external onlyOwner whenPaused {
        require(_claimDuration > 0, "Claim duration should be greater than 0");

        claimDuration = _claimDuration;
        claimStartTime = block.timestamp;

        _unpause();

        emit ClaimStart(_claimDuration, claimStartTime);
    }

    function pauseClaimablePeriod() external onlyOwner {
        _pause();
    }

    function claimTokens() external whenNotPaused {
        require(block.timestamp >= claimStartTime && block.timestamp < claimStartTime + claimDuration, "Claimable period is finished");
        require((beta.balanceOf(msg.sender) > 0 || alpha.balanceOf(msg.sender) > 0), "Nothing to claim");

        uint256 tokensToClaim;
        uint256 gammaToBeClaim;

        (tokensToClaim, gammaToBeClaim) = getClaimableTokenAmountAndGammaToClaim(msg.sender);

        for(uint256 i; i < alpha.balanceOf(msg.sender); ++i) {
            uint256 tokenId = alpha.tokenOfOwnerByIndex(msg.sender, i);
            if(!alphaClaimed[tokenId]) {
                alphaClaimed[tokenId] = true;
                emit AlphaClaimed(tokenId, msg.sender, block.timestamp);
            }
        }

        for(uint256 i; i < beta.balanceOf(msg.sender); ++i) {
            uint256 tokenId = beta.tokenOfOwnerByIndex(msg.sender, i);
            if(!betaClaimed[tokenId]) {
                betaClaimed[tokenId] = true;
                emit BetaClaimed(tokenId, msg.sender, block.timestamp);
            }
        }

        uint256 currentGammaClaimed;
        for(uint256 i; i < gamma.balanceOf(msg.sender); ++i) {
            uint256 tokenId = gamma.tokenOfOwnerByIndex(msg.sender, i);
            if(!gammaClaimed[tokenId] && currentGammaClaimed < gammaToBeClaim) {
                gammaClaimed[tokenId] = true;
                emit GammaClaimed(tokenId, msg.sender, block.timestamp);
                currentGammaClaimed++;
            }
        }

        grapesToken.safeTransfer(msg.sender, tokensToClaim);

        totalClaimed += tokensToClaim;
        emit AirDrop(msg.sender, tokensToClaim, block.timestamp);
    }

    function getClaimableTokenAmount(address _account) public view returns (uint256) {
        uint256 tokensAmount;
        (tokensAmount,) = getClaimableTokenAmountAndGammaToClaim(_account);
        return tokensAmount;
    }

    function getClaimableTokenAmountAndGammaToClaim(address _account) private view returns (uint256, uint256)
    {
        uint256 unclaimedAlphaBalance;
        for(uint256 i; i < alpha.balanceOf(_account); ++i) {
            uint256 tokenId = alpha.tokenOfOwnerByIndex(_account, i);
            if(!alphaClaimed[tokenId]) {
                ++unclaimedAlphaBalance;
            }
        }
        uint256 unclaimedBetaBalance;
        for(uint256 i; i < beta.balanceOf(_account); ++i) {
            uint256 tokenId = beta.tokenOfOwnerByIndex(_account, i);
            if(!betaClaimed[tokenId]) {
                ++unclaimedBetaBalance;
            }
        }
        uint256 unclaimedGamaBalance;
        for(uint256 i; i < gamma.balanceOf(_account); ++i) {
            uint256 tokenId = gamma.tokenOfOwnerByIndex(_account, i);
            if(!gammaClaimed[tokenId]) {
                ++unclaimedGamaBalance;
            }
        }

        uint256 gammaToBeClaim = min(unclaimedAlphaBalance + unclaimedBetaBalance, unclaimedGamaBalance);
        uint256 tokensAmount = (unclaimedAlphaBalance * ALPHA_DISTRIBUTION_AMOUNT)
        + (unclaimedBetaBalance * BETA_DISTRIBUTION_AMOUNT) + (gammaToBeClaim * GAMMA_DISTRIBUTION_AMOUNT);

        return (tokensAmount, gammaToBeClaim);
    }

    function min(uint256 a, uint256 b) private pure returns(uint256) {
        if (a <= b) {
            return a;
        } else {
            return b;
        }
    }

    function claimUnclaimedTokens() external onlyOwner {
        require(block.timestamp > claimStartTime + claimDuration, "Claimable period is not finished yet");
        grapesToken.safeTransfer(owner(), grapesToken.balanceOf(address(this)));

        uint256 balance = address(this).balance;
        if (balance > 0) {
            Address.sendValue(payable(owner()), balance);
        }
    }
}

File 2 of 16 : 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 3 of 16 : 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 4 of 16 : 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 5 of 16 : 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 6 of 16 : 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 7 of 16 : 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 8 of 16 : IERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 tokenId);

    /**
     * @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 9 of 16 : ERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../ERC721.sol";
import "./IERC721Enumerable.sol";

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
 * enumerability of all the token ids in the contract as well as all token ids owned by each
 * account.
 */
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
    // Mapping from owner to list of owned token IDs
    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;

    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;

    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;

    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
        return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
        return _ownedTokens[owner][index];
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _allTokens.length;
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
        return _allTokens[index];
    }

    /**
     * @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` cannot be the zero address.
     * - `to` cannot be the zero address.
     *
     * 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 override {
        super._beforeTokenTransfer(from, to, tokenId);

        if (from == address(0)) {
            _addTokenToAllTokensEnumeration(tokenId);
        } else if (from != to) {
            _removeTokenFromOwnerEnumeration(from, tokenId);
        }
        if (to == address(0)) {
            _removeTokenFromAllTokensEnumeration(tokenId);
        } else if (to != from) {
            _addTokenToOwnerEnumeration(to, tokenId);
        }
    }

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        uint256 length = ERC721.balanceOf(to);
        _ownedTokens[to][length] = tokenId;
        _ownedTokensIndex[tokenId] = length;
    }

    /**
     * @dev Private function to add a token to this extension's token tracking data structures.
     * @param tokenId uint256 ID of the token to be added to the tokens list
     */
    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
        _allTokensIndex[tokenId] = _allTokens.length;
        _allTokens.push(tokenId);
    }

    /**
     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
     * @param from address representing the previous owner of the given token ID
     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
     */
    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary
        if (tokenIndex != lastTokenIndex) {
            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
        }

        // This also deletes the contents at the last position of the array
        delete _ownedTokensIndex[tokenId];
        delete _ownedTokens[from][lastTokenIndex];
    }

    /**
     * @dev Private function to remove a token from this extension's token tracking data structures.
     * This has O(1) time complexity, but alters the order of the _allTokens array.
     * @param tokenId uint256 ID of the token to be removed from the tokens list
     */
    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _allTokens.length - 1;
        uint256 tokenIndex = _allTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
        uint256 lastTokenId = _allTokens[lastTokenIndex];

        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

        // This also deletes the contents at the last position of the array
        delete _allTokensIndex[tokenId];
        _allTokens.pop();
    }
}

File 10 of 16 : 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 11 of 16 : 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 12 of 16 : 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 13 of 16 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 14 of 16 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

File 15 of 16 : Pausable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

File 16 of 16 : 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": 200
  },
  "evmVersion": "london",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_grapesTokenAddress","type":"address"},{"internalType":"address","name":"_alphaContractAddress","type":"address"},{"internalType":"address","name":"_betaContractAddress","type":"address"},{"internalType":"address","name":"_gammaContractAddress","type":"address"},{"internalType":"uint256","name":"_ALPHA_DISTRIBUTION_AMOUNT","type":"uint256"},{"internalType":"uint256","name":"_BETA_DISTRIBUTION_AMOUNT","type":"uint256"},{"internalType":"uint256","name":"_GAMMA_DISTRIBUTION_AMOUNT","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"AirDrop","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"AlphaClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"BetaClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_claimDuration","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_claimStartTime","type":"uint256"}],"name":"ClaimStart","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"GammaClaimed","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":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"ALPHA_DISTRIBUTION_AMOUNT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"BETA_DISTRIBUTION_AMOUNT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"GAMMA_DISTRIBUTION_AMOUNT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"alpha","outputs":[{"internalType":"contract ERC721Enumerable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"alphaClaimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"beta","outputs":[{"internalType":"contract ERC721Enumerable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"betaClaimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimStartTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimUnclaimedTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"gamma","outputs":[{"internalType":"contract ERC721Enumerable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"gammaClaimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"getClaimableTokenAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"grapesToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pauseClaimablePeriod","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_claimDuration","type":"uint256"}],"name":"startClaimablePeriod","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalClaimed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

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

0000000000000000000000004d224452801aced8b2f0aebe155379bb5d594381000000000000000000000000bc4ca0eda7647a8ab7c2061c2e118a18a936f13d00000000000000000000000060e4d786628fea6478f785a6d7e704777c86a7c6000000000000000000000000ba30e5f9bb24caa003e9f2f0497ad287fdf956230000000000000000000000000000000000000000000002233263dfb228f8000000000000000000000000000000000000000000000000006eb271550533a8000000000000000000000000000000000000000000000000002e6762e8b7b6600000

-----Decoded View---------------
Arg [0] : _grapesTokenAddress (address): 0x4d224452801ACEd8B2F0aebE155379bb5D594381
Arg [1] : _alphaContractAddress (address): 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D
Arg [2] : _betaContractAddress (address): 0x60E4d786628Fea6478F785A6d7e704777c86a7c6
Arg [3] : _gammaContractAddress (address): 0xba30E5F9Bb24caa003E9f2f0497Ad287FDF95623
Arg [4] : _ALPHA_DISTRIBUTION_AMOUNT (uint256): 10094000000000000000000
Arg [5] : _BETA_DISTRIBUTION_AMOUNT (uint256): 2042000000000000000000
Arg [6] : _GAMMA_DISTRIBUTION_AMOUNT (uint256): 856000000000000000000

-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 0000000000000000000000004d224452801aced8b2f0aebe155379bb5d594381
Arg [1] : 000000000000000000000000bc4ca0eda7647a8ab7c2061c2e118a18a936f13d
Arg [2] : 00000000000000000000000060e4d786628fea6478f785a6d7e704777c86a7c6
Arg [3] : 000000000000000000000000ba30e5f9bb24caa003e9f2f0497ad287fdf95623
Arg [4] : 0000000000000000000000000000000000000000000002233263dfb228f80000
Arg [5] : 00000000000000000000000000000000000000000000006eb271550533a80000
Arg [6] : 00000000000000000000000000000000000000000000002e6762e8b7b6600000


Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.

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.