ETH Price: $2,076.24 (+4.55%)

Contract

0x554BC8CBe6B48B6ae4C2b43DdBb691Ecc55F7cEB
 

Overview

ETH Balance

0 ETH

Eth Value

$0.00

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Multichain Info

No addresses found
Transaction Hash
Method
Block
From
To
Commit Package S...169929892023-04-07 0:07:471088 days ago1680826067IN
0x554BC8CB...cc55F7cEB
0 ETH0.0008050222.79681666
Verify Signature...168829632023-03-22 11:53:591104 days ago1679486039IN
0x554BC8CB...cc55F7cEB
0 ETH0.0106587212.94299659
Commit Package S...168796762023-03-22 0:50:471104 days ago1679446247IN
0x554BC8CB...cc55F7cEB
0 ETH0.0028484312.60214484

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Contract Source Code Verified (Exact Match)

Contract Name:
OfficialSignatureV2

Compiler Version
v0.8.18+commit.87f61d96

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license
/**
 *Submitted for verification at Etherscan.io on 2023-03-19
*/

pragma solidity ^0.8.14;

interface UnknownToken {
    function balanceOf(address account) external view returns (uint256);
    function allowance(address owner, address spender) external view returns (uint256);

    function transferFrom(address from, address to, uint256 amount) external returns (bool);
    function burnFrom(address from, uint256 amount) external returns(bool);
    function increaseAllowance(address spender, uint256 addedValue) external returns (bool);
}

interface Banned {
    function isBanned(address account) external view returns (bool);
}

contract OfficialSignatureV2 {
    string private _projectFlag;
    address private _contractOwner;
    address private _bannedContract;
    address private _unknownTokenContract;

    //already verify info
    mapping(string => bool) private _packageSign;

    event Deploy(address owner, string projectFlag, address bannedContract, address utContract);
    event UserCommit(address user, uint256 blockNumber, string packageName, string desc, string sign, bool isGenuine);
    event VerifySign(address verifier, string packageSign, address contributor, bool isGenuine);
    event SetBanned(address contractOwner, uint256 blockNumber, address newBanned);

    modifier onlyOwner() {
        require(msg.sender == _contractOwner);
        _;
    }

    modifier onlyNotBanned() {
        if(address(_bannedContract) != address(0)) {
            require(!Banned(_bannedContract).isBanned(msg.sender), "account was banned.");
        }
        _;
    }

    constructor(address owner, address banned, address ut) {
        _projectFlag = "OfficialSignatureV2";
        _contractOwner = owner;
        _bannedContract = banned;
        _unknownTokenContract = ut;

        emit Deploy(_contractOwner, _projectFlag, _bannedContract, _unknownTokenContract);
    }

    function isGenuineSign(string memory packageSign) public view returns (bool) {
        return (_packageSign[packageSign]);
    }

    function calculatePackageSign(string memory package, string memory sign) public view returns(string memory) {
        string memory packageSign = string(abi.encodePacked(package, sign));
        return packageSign;
    }

    //user commit
    function commitPackageSigns(string[] memory packageNames, string[] memory signs, string[] memory desc, bool[] memory isGenuine) public onlyNotBanned {
        require(packageNames.length > 0, "must input 1 package.");
        require(signs.length == packageNames.length, "array length should equal.");
        require(signs.length == desc.length, "array length should equal.");
        require(signs.length == isGenuine.length, "array length should equal.");

        for(uint i=0;i < signs.length;i ++) {
            if((bytes(signs[i]).length != 32))
                revert();
            if((bytes(packageNames[i]).length > 256))
                revert();
            if((bytes(desc[i]).length > 256))
                revert();

            emit UserCommit(msg.sender, block.number, packageNames[i], desc[i], signs[i], isGenuine[i]);
        }
    }

    //verify & reward - manager operate
    function setBannedContract(address newBanned) public onlyOwner {
        _bannedContract = newBanned;

        emit SetBanned(msg.sender, block.number, newBanned);
    }

    function verifySignatureInfo(string[] memory packageSigns, address[] memory contributors) public onlyOwner {
        require(packageSigns.length == contributors.length, "array length should equal.");

        for(uint256 off = 0; off < packageSigns.length; off ++) {
            if(!_packageSign[packageSigns[off]]) {
                _packageSign[packageSigns[off]] = true;
                UnknownToken(_unknownTokenContract).transferFrom(msg.sender, contributors[off], 500);
                emit VerifySign(msg.sender, packageSigns[off], contributors[off], true);
            } else {
                _packageSign[packageSigns[off]] = false;
                UnknownToken(_unknownTokenContract).transferFrom(msg.sender, contributors[off], 500);
                emit VerifySign(msg.sender, packageSigns[off], contributors[off], false);
            }
        }

    }

}

Contract Security Audit

Contract ABI

API
[{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"banned","type":"address"},{"internalType":"address","name":"ut","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"string","name":"projectFlag","type":"string"},{"indexed":false,"internalType":"address","name":"bannedContract","type":"address"},{"indexed":false,"internalType":"address","name":"utContract","type":"address"}],"name":"Deploy","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"contractOwner","type":"address"},{"indexed":false,"internalType":"uint256","name":"blockNumber","type":"uint256"},{"indexed":false,"internalType":"address","name":"newBanned","type":"address"}],"name":"SetBanned","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"blockNumber","type":"uint256"},{"indexed":false,"internalType":"string","name":"packageName","type":"string"},{"indexed":false,"internalType":"string","name":"desc","type":"string"},{"indexed":false,"internalType":"string","name":"sign","type":"string"},{"indexed":false,"internalType":"bool","name":"isGenuine","type":"bool"}],"name":"UserCommit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"verifier","type":"address"},{"indexed":false,"internalType":"string","name":"packageSign","type":"string"},{"indexed":false,"internalType":"address","name":"contributor","type":"address"},{"indexed":false,"internalType":"bool","name":"isGenuine","type":"bool"}],"name":"VerifySign","type":"event"},{"inputs":[{"internalType":"string","name":"package","type":"string"},{"internalType":"string","name":"sign","type":"string"}],"name":"calculatePackageSign","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string[]","name":"packageNames","type":"string[]"},{"internalType":"string[]","name":"signs","type":"string[]"},{"internalType":"string[]","name":"desc","type":"string[]"},{"internalType":"bool[]","name":"isGenuine","type":"bool[]"}],"name":"commitPackageSigns","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"packageSign","type":"string"}],"name":"isGenuineSign","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newBanned","type":"address"}],"name":"setBannedContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string[]","name":"packageSigns","type":"string[]"},{"internalType":"address[]","name":"contributors","type":"address[]"}],"name":"verifySignatureInfo","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Deployed Bytecode

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000c7ddb1a8d185df6ba28e6ebd344d8384c797e9370000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a65aa7679a51cc7cbca9877491d3628c7a233ab4

-----Decoded View---------------
Arg [0] : owner (address): 0xc7ddB1A8D185DF6Ba28E6EBD344D8384C797e937
Arg [1] : banned (address): 0x0000000000000000000000000000000000000000
Arg [2] : ut (address): 0xa65Aa7679a51cC7cbCA9877491d3628c7A233AB4

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000c7ddb1a8d185df6ba28e6ebd344d8384c797e937
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [2] : 000000000000000000000000a65aa7679a51cc7cbca9877491d3628c7a233ab4


Deployed Bytecode Sourcemap

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Swarm Source

ipfs://7818e2f079bebf691dfcbb451914868ba6d4e9519985217445010bcbc13d55fc

Block Uncle Number Difficulty Gas Used Reward
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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.