Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

//SPDX-License-Identifier: MIT

pragma solidity ^0.8.4;
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";

/// @author Andrew Parker
/// @title GBA Whitelist NFT Contract
/// @notice Implementation of OpenZeppelin MerkleProof contract for GBA MiniStayPuft and Traps NFTs
contract GBAWhitelist{
    bytes32 merkleRoot;

    /// Constructor
    /// @param _merkleRoot root of merkle tree
    constructor(bytes32 _merkleRoot){
        merkleRoot = _merkleRoot;
    }

    /// Is Whitelisted
    /// @notice Is a given address whitelisted based on proof provided
    /// @param proof Merkle proof
    /// @param claimer address to check
    /// @return Is whitelisted
    function isWhitelisted(bytes32[] memory proof, address claimer) public view returns(bool){
        bytes32 leaf = keccak256(abi.encodePacked(claimer));
        return MerkleProof.verify(proof,merkleRoot,leaf);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        bytes32 computedHash = leaf;

        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];

            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
            }
        }

        // Check if the computed hash (root) is equal to the provided root
        return computedHash == root;
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"},{"internalType":"address","name":"claimer","type":"address"}],"name":"isWhitelisted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

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

2c27b8efb568f87f57666db7d797e7dcd5e05e886a753117ae67c8c624415e1e

-----Decoded View---------------
Arg [0] : _merkleRoot (bytes32): 0x2c27b8efb568f87f57666db7d797e7dcd5e05e886a753117ae67c8c624415e1e

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 2c27b8efb568f87f57666db7d797e7dcd5e05e886a753117ae67c8c624415e1e