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Contract

0x16Cca36a14B42925D1beC87Be2EDcf244492d394
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

Multichain Info

No addresses found
Transaction Hash
Method
Block
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To
Create Post215884132025-01-09 17:28:5932 days ago1736443739IN
0x16Cca36a...44492d394
0 ETH0.0004157511.38219113
Create Thread215883602025-01-09 17:18:2332 days ago1736443103IN
0x16Cca36a...44492d394
0 ETH0.000529313.29014037

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Contract Source Code Verified (Exact Match)

Contract Name:
HashChan3

Compiler Version
v0.8.28+commit.7893614a

Optimization Enabled:
Yes with 200 runs

Other Settings:
paris EvmVersion
File 1 of 1 : HashChan3.sol
pragma solidity 0.8.28;

contract HashChan3 {

  uint256 public boardCount;
  mapping(uint256 => Board) public boards;

  struct Board {
    string  name;
    string  symbol;
    string  description;
    string  bannerUrl;
    string bannerCID;
    string[] rules;
  }

  event NewBoard (
    uint256 indexed boardId,
    string name,
    string symbol,
    string description,
    string bannerUrl,
    string bannerCID,
    string[] rules,
    uint256 timestamp
  );

  event NewThread (
    uint256 indexed boardId,
    bytes32 indexed threadId,
    address indexed creator,
    string imgUrl,
    string imgCID,
    string title,
    string content,
    uint256 timestamp
  );

  event NewPost (
    uint256 boardId,
    bytes32 indexed threadId,
    bytes32 indexed postId,
    bytes32[] replyIds,
    address indexed creator,
    string imgUrl,
    string imgCID,
    string content,
    uint256 timestamp
  );

  constructor() {
    string[] memory rules = new string[](3);

    rules[0] ="Debate and discussion related to politics and current events is welcome.";
    rules[1] = "You are free to speak your mind, but do not attack other users. You may challenge one another, but keep it civil!";
    rules[2] = "Posting pornography is not permitted. This is a politics board, not a porn board.";

    createBoard(
      "Politically Incorrect",
      "pol",
      "This board is for the discussion of news, world events, political issues, and other related topics.",
      "https://i.4cdn.org/pol/1493993226750.jpg",
      "bafkreib7cvtqy5exmymnm32hksayaok7ywf5lsoz3xglipfnverpdgmrki",
      rules
    );
  }

  function createBoard(
    string memory name,
    string memory symbol,
    string memory description,
    string memory bannerUrl,
    string memory bannerCID,
    string[] memory rules
  ) public returns (uint256) {
    require(bytes(symbol).length <= 4, "symbol too long");
    boards[boardCount] = Board(
      name,
      symbol,
      description,
      bannerUrl,
      bannerCID,
      rules
    );
    boardCount++;
    emit NewBoard(
      boardCount - 1,
      name,
      symbol,
      description,
      bannerUrl,
      bannerCID,
      rules,
      block.timestamp
    );
    return boardCount;
  }

  function getBoard(uint256 id) public view returns (Board memory) {
    return boards[id];
  }

  function createThread(
    uint256 boardId,
    string memory title,
    string memory imgUrl,
    string memory imgCID,
    string memory content
  ) public returns (bytes32 threadId) {
    threadId = keccak256(
      abi.encode(
        boardId,
        imgCID,
        msg.sender,
        block.number
    ));

    emit NewThread (
      boardId,
      threadId,
      msg.sender,
      imgUrl,
      imgCID,
      title,
      content,
      block.timestamp
    );
  }

  function createPost(
    uint256 boardId,
    bytes32  threadId,
    bytes32[] memory replyIds,
    string  memory imgUrl,
    string  memory imgCID,
    string  memory content
  ) public returns (bytes32 postId){
    postId = keccak256(abi.encode(
      boardId,
      threadId,
      imgCID,
      msg.sender,
      block.number
    ));
    emit NewPost(
      boardId,
      threadId,
      postId,
      replyIds,
      msg.sender,
      imgUrl,
      imgCID,
      content,
      block.timestamp
    );
  }

}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"boardId","type":"uint256"},{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"string","name":"symbol","type":"string"},{"indexed":false,"internalType":"string","name":"description","type":"string"},{"indexed":false,"internalType":"string","name":"bannerUrl","type":"string"},{"indexed":false,"internalType":"string","name":"bannerCID","type":"string"},{"indexed":false,"internalType":"string[]","name":"rules","type":"string[]"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"NewBoard","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"boardId","type":"uint256"},{"indexed":true,"internalType":"bytes32","name":"threadId","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"postId","type":"bytes32"},{"indexed":false,"internalType":"bytes32[]","name":"replyIds","type":"bytes32[]"},{"indexed":true,"internalType":"address","name":"creator","type":"address"},{"indexed":false,"internalType":"string","name":"imgUrl","type":"string"},{"indexed":false,"internalType":"string","name":"imgCID","type":"string"},{"indexed":false,"internalType":"string","name":"content","type":"string"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"NewPost","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"boardId","type":"uint256"},{"indexed":true,"internalType":"bytes32","name":"threadId","type":"bytes32"},{"indexed":true,"internalType":"address","name":"creator","type":"address"},{"indexed":false,"internalType":"string","name":"imgUrl","type":"string"},{"indexed":false,"internalType":"string","name":"imgCID","type":"string"},{"indexed":false,"internalType":"string","name":"title","type":"string"},{"indexed":false,"internalType":"string","name":"content","type":"string"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"NewThread","type":"event"},{"inputs":[],"name":"boardCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"boards","outputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"string","name":"description","type":"string"},{"internalType":"string","name":"bannerUrl","type":"string"},{"internalType":"string","name":"bannerCID","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"string","name":"description","type":"string"},{"internalType":"string","name":"bannerUrl","type":"string"},{"internalType":"string","name":"bannerCID","type":"string"},{"internalType":"string[]","name":"rules","type":"string[]"}],"name":"createBoard","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"boardId","type":"uint256"},{"internalType":"bytes32","name":"threadId","type":"bytes32"},{"internalType":"bytes32[]","name":"replyIds","type":"bytes32[]"},{"internalType":"string","name":"imgUrl","type":"string"},{"internalType":"string","name":"imgCID","type":"string"},{"internalType":"string","name":"content","type":"string"}],"name":"createPost","outputs":[{"internalType":"bytes32","name":"postId","type":"bytes32"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"boardId","type":"uint256"},{"internalType":"string","name":"title","type":"string"},{"internalType":"string","name":"imgUrl","type":"string"},{"internalType":"string","name":"imgCID","type":"string"},{"internalType":"string","name":"content","type":"string"}],"name":"createThread","outputs":[{"internalType":"bytes32","name":"threadId","type":"bytes32"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getBoard","outputs":[{"components":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"string","name":"description","type":"string"},{"internalType":"string","name":"bannerUrl","type":"string"},{"internalType":"string","name":"bannerCID","type":"string"},{"internalType":"string[]","name":"rules","type":"string[]"}],"internalType":"struct HashChan3.Board","name":"","type":"tuple"}],"stateMutability":"view","type":"function"}]

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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.