Contract

0x4c2BbdbEccae1c492C681158A46EAE498a05627B

Source Code

API

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ContractCreator

0x21F83589...AB92835bc | 2 yrs 350 days ago

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Contract Source Code Verified (Exact Match)

Contract Name:

MerkleVerifier

Compiler Version

v0.8.17+commit.8df45f5f

Optimization Enabled:

Yes with 800 runs

Other Settings:

default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

IDE

File 1 of 1 : MerkleVerifier.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

/**
 * @title MerkleVerifier
 * @dev Utility functions for Merkle tree computations
 */
library MerkleVerifier {
    error InvalidProof();

    /**
     * @dev Verify the merkle proof
     * @param leaf leaf
     * @param root root
     * @param proof proof
     */
    function _verifyProof(
        bytes32 leaf,
        bytes32 root,
        bytes32[] memory proof
    ) public pure {
        bytes32 computedRoot = _computeRoot(leaf, proof);
        if (computedRoot != root) {
            revert InvalidProof();
        }
    }

    /**
     * @dev Compute the merkle root
     * @param leaf leaf
     * @param proof proof
     */
    function _computeRoot(
        bytes32 leaf,
        bytes32[] memory proof
    ) public pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];
            computedHash = _hashPair(computedHash, proofElement);
        }
        return computedHash;
    }

    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    function _efficientHash(
        bytes32 a,
        bytes32 b
    ) private pure returns (bytes32 value) {
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

Settings

{
  "metadata": {
    "bytecodeHash": "none"
  },
  "optimizer": {
    "enabled": true,
    "runs": 800
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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Contract ABI

API

[{"inputs":[],"name":"InvalidProof","type":"error"},{"inputs":[{"internalType":"bytes32","name":"leaf","type":"bytes32"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"_computeRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes32","name":"leaf","type":"bytes32"},{"internalType":"bytes32","name":"root","type":"bytes32"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"_verifyProof","outputs":[],"stateMutability":"pure","type":"function"}]

Contract Creation Code

Decompile Bytecode Switch to Opcodes View

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Deployed Bytecode

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