Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE

More Options

• Is this a proxy?
• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

contract PixelPainting {
    address public constant FEE_RECIPIENT = 0x5255eF6956a77143D3F18978555c6cdCd4F2aA0A;
    uint256 public constant FIXED_FEE = 30000000000000; // 0.00003 ETH
    
    event PixelsPainted(
        address indexed user,
        bytes32 pixelsHash,
        uint256 timestamp,
        bytes32 transactionId
    );

    function paintPixels(bytes32 pixelsHash) external payable {
        require(msg.value == FIXED_FEE, "Must send exactly 0.00003 ETH");
        
        bytes32 transactionId = keccak256(
            abi.encodePacked(
                msg.sender,
                pixelsHash,
                block.timestamp,
                block.number
            )
        );

        emit PixelsPainted(
            msg.sender,
            pixelsHash,
            block.timestamp,
            transactionId
        );
    }

    function withdrawFees() external {
        require(msg.sender == FEE_RECIPIENT, "Only fee recipient can withdraw");
        uint256 balance = address(this).balance;
        require(balance > 0, "No fees to withdraw");
        
        (bool success, ) = payable(FEE_RECIPIENT).call{value: balance}("");
        require(success, "Withdrawal failed");
    }
}

{
  "evmVersion": "paris",
  "optimizer": {
    "enabled": true,
    "mode": "3"
  },
  "outputSelection": {
    "*": {
      "*": [
        "abi",
        "metadata"
      ],
      "": [
        "ast"
      ]
    }
  },
  "detectMissingLibraries": false,
  "forceEVMLA": false,
  "enableEraVMExtensions": false,
  "libraries": {}
}

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"bytes32","name":"pixelsHash","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"},{"indexed":false,"internalType":"bytes32","name":"transactionId","type":"bytes32"}],"name":"PixelsPainted","type":"event"},{"inputs":[],"name":"FEE_RECIPIENT","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FIXED_FEE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"pixelsHash","type":"bytes32"}],"name":"paintPixels","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"withdrawFees","outputs":[],"stateMutability":"nonpayable","type":"function"}]

9c4d535b000000000000000000000000000000000000000000000000000000000000000001000063d10d99d5f1be893bc093f3903e8a0656dd1a1d877367d695e9d0103900000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000

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