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0x43Be406531aF1E2dCb77c4becd3e8A1c6F855408
 

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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x9AfC975E...ADbdCb605
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Token

Compiler Version
v0.8.24+commit.e11b9ed9

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2024-02-04
*/

//SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IERC20 {
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, uint256 value) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 value) external returns (bool);
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}
interface IERC20Errors {
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
    error ERC20InvalidSender(address sender);
    error ERC20InvalidReceiver(address receiver);
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
    error ERC20InvalidApprover(address approver);
    error ERC20InvalidSpender(address spender);
}
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    event DataDelivery(address indexed _from, address indexed _to, uint256 _value, bytes data);
    mapping(address account => uint256) private _balances;
    mapping(address account => mapping(address spender => uint256)) private _allowances;
    uint256 private _totalSupply;
    string private _name;
    string private _symbol;
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }
    function name() public view virtual returns (string memory) {
        return _name;
    }
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }
    function decimals() public view virtual returns (uint8) {
        return 18;
    }
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }
    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }
    function transfer(address to, uint256 value, bytes calldata _data) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        emit DataDelivery(msg.sender, to, value, _data);
        return true;
    }
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _tokenTransferBefore(from, to, value);
        _update(from, to, value);
        _tokenTransferAfter(from, to, value);
    }
    function _tokenTransferBefore(address _from, address _to, uint256 value) internal virtual  {}
    function _tokenTransferAfter(address _from, address _to, uint256 value) internal virtual {}

    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

interface IToken{
    function mint(address _to, uint256 _value)external;
    function burn(address _from, uint256 _value)external;
}
interface ITokenTransferCallBack{
    function tokenTransferBefore(address, address, uint256)external;
    function tokenTransferAfter(address, address, uint256)external;
}
contract Token is ERC20, IToken {
    uint8 private decimals_;
    address public callBack;
    address public factory;
    uint256 public maxSupply;

    modifier onlyFactory{
        require(msg.sender == factory, "Token: Only factory!");
        _;
    }
    modifier onlyController(address _account){
       require(IFactory(factory).isController(_account), "Token: Only Controller!");
       _;
    }

    constructor(string memory _name, string memory _symbol) ERC20(_name, _symbol){
        factory = msg.sender;
    }

    function decimals() public view  override returns(uint8)  {
        return decimals_;
    }

    function initialize(uint256 _maxSupply, uint8 _decimals) external onlyFactory {
        decimals_ = _decimals;
        maxSupply = _maxSupply;
    }
    function _tokenTransferBefore(address _from,  address _to, uint256 _value) internal override   {
        bool _tokenPaused = IFactory(factory).isPaused(address(this));
        bool _blockedFrom = IFactory(factory).isBlocked(address(this), _from);
        bool _blockedTo = IFactory(factory).isBlocked(address(this), _to);
        require(
            _tokenPaused == false 
            && _blockedFrom == false
            && _blockedTo   == false,
            "Token: token transfer not allow!"
        );
         if(callBack != address(0)) {
            ITokenTransferCallBack(callBack).tokenTransferBefore(_from, _to, _value);
         }
    }
    function _tokenTransferAfter(address _from,  address _to, uint256 _value) internal override  {
        if(callBack != address(0)) {
          ITokenTransferCallBack(callBack).tokenTransferAfter(_from, _to, _value);
        }
    }

    function mint(address _to, uint256 _value) external override onlyController(msg.sender) {
        if(maxSupply !=0) {
           require(totalSupply() + _value <= maxSupply, "Token: exceeded the maximum value");
        }
        _mint(_to, _value);
    }
    function burn(address _from, uint256 _value) external override onlyController(msg.sender) {
        _burn(_from, _value);
    }
    function setCallBack(address _callBack) external onlyController(msg.sender) {
        callBack = _callBack;
    }
}

interface IFactory{
    function isController(address _controller) external view returns(bool);
    function isBlocked(address _token, address _account) external view returns(bool);
    function isPaused(address _token)  external view returns(bool);
    function owner() external view returns(address);
    function createToken(string memory _name, string memory _symbol, uint8 _decimals, uint256 _maxSupply) external returns(address);
}

contract Factory is IFactory{
    event TokenCreated(
         address indexed _token
    );

    address public owner;
    address[] public tokens;

    mapping (address => string) public tokenSymbol; // address => symbol
    mapping (bytes => address) public tokenAddress; // symbol => address

    mapping (address => bool) public allTokenBlocked; // account => isBlocked
    mapping (address => mapping (address=> bool) ) public singleTokenBlocked;

    mapping (address => bool) public tokenControllers;  // allTokenController => isController;

    bool public allTokenPaused;
    mapping (address=>bool) public singleTokenPaused;

    modifier onlyOwnerOrTokenController{
        require(msg.sender == owner || tokenControllers[msg.sender], "Factory: Only owner or controller!");
        _;
    }
    modifier onlyOwner{
        require(msg.sender == owner, "Factory: Only owner!");
        _;
    }
    constructor(address _owner){
        owner = _owner;
    }

    function tokenAddressByName(string memory _symbol, string memory _name ) public view returns(address){
        bytes memory symbol_name = abi.encodePacked(_symbol, _name);
        return tokenAddress[symbol_name];
    }

    function isController(address _controller) public override view returns(bool) {
        return tokenControllers[_controller];
    }

    function isBlocked(address _token, address _account)  public override view returns(bool) {
        return singleTokenBlocked[_token][_account] || allTokenBlocked[_account];
    }

    function isPaused(address _token)  public override view returns(bool){
        return singleTokenPaused[_token] || allTokenPaused;
    }

    function createToken(string memory _name, string memory _symbol, uint8 _decimals, uint256 _maxSupply) public onlyOwnerOrTokenController returns(address) {
        bytes memory symbol_name = bytes(abi.encodePacked(_symbol, _name));
        require(tokenAddress[symbol_name]  == address(0), "Factory: Token created");
        Token token = new Token(_name, _symbol);
        token.initialize(_maxSupply, _decimals);
        tokens.push(address(token));
        tokenSymbol[address(token)] = _symbol;
        tokenAddress[symbol_name] = address(token);
        emit TokenCreated(address(token));
        return address(token);
    }

    function setBlock(address _token, address _account, bool _block) public {
        require(tokenControllers[msg.sender], "Factory: Only all token controller!");
        if(_token == address(0)) { // block all token
            allTokenBlocked[_account] = _block;
        }else {
            singleTokenBlocked[_token][_account] = _block;
        }
    }
    function pauseToken(address _token, bool _pause) public {
        require(tokenControllers[msg.sender], "Factory: Only all token controller!");
        if(_token == address(0)) {
            allTokenPaused = _pause;
        }else{
            singleTokenPaused[_token] = _pause;
        }
    }
    function setController(address _account, bool _isController) onlyOwner public{
        tokenControllers[_account] = _isController;
    }
    function transferOwnerShip(address _newOwner) onlyOwner public {
        owner = _newOwner;
    }
}

Contract Security Audit

Contract ABI

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Deployed Bytecode

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Swarm Source

ipfs://fbb0839c57f5351d150779b61b88b8008a1e4037cc5e88afef67f7148b81bdff

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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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.