a Full-stack software engineer, Gamer and occasional blogger with a focus on blockchain development and building practical web3 solutions.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract MerkleVerifier  {
    bytes32 public merkleRoot;

    constructor(bytes32 _merkleRoot) {
        merkleRoot = _merkleRoot;
    }

    function verify(bytes32[] memory proof, bytes32 leaf) public view returns (bool) {
        bytes32 hash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            hash = hash <= proof[i] ? keccak256(abi.encodePacked(hash, proof[i])) : keccak256(abi.encodePacked(proof[i], hash));
        }
        return hash == merkleRoot;
    }
}