Token

Contract Source Code (Solidity)Audit Report

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

 contract Token    - function balanceOf(address _owner)    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract StandardToken is Token    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function balanceOf(address _owner)    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract ArthurStandardToken is St ... *    - function ArthurStandardToken(    - function approveAndCall(address _spen ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2018-05-29
*/

pragma solidity ^0.4.19;

contract Token {
    /// total amount of tokens
    uint256 public totalSupply;

    /// @param _owner The address from which the balance will be retrieved
    /// @return The balance
    function balanceOf(address _owner) public constant returns (uint256 balance);

    /// @notice send `_value` token to `_to` from `msg.sender`
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return Whether the transfer was successful or not
    function transfer(address _to, uint256 _value)public  returns (bool success);

    /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
    /// @param _from The address of the sender
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return Whether the transfer was successful or not
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);

    /// @notice `msg.sender` approves `_spender` to spend `_value` tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @param _value The amount of tokens to be approved for transfer
    /// @return Whether the approval was successful or not
    function approve(address _spender, uint256 _value) public returns (bool success);

    /// @param _owner The address of the account owning tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @return Amount of remaining tokens allowed to spent
    function allowance(address _owner, address _spender) public constant returns (uint256 remaining);

    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}

contract StandardToken is Token {

    function transfer(address _to, uint256 _value) public returns (bool success) {
        if (balances[msg.sender] >= _value && _value > 0) {
            balances[msg.sender] -= _value;
            balances[_to] += _value;
            Transfer(msg.sender, _to, _value);
            return true;
        } else { return false; }
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        //same as above. Replace this line with the following if you want to protect against wrapping uints.
        //if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
        if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) {
            balances[_to] += _value;
            balances[_from] -= _value;
            allowed[_from][msg.sender] -= _value;
            Transfer(_from, _to, _value);
            return true;
        } else { return false; }
    }

    function balanceOf(address _owner) public constant returns (uint256 balance) {
        return balances[_owner];
    }

    function approve(address _spender, uint256 _value) public returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
    }

    function allowance(address _owner, address _spender) public constant returns (uint256 remaining) {
      return allowed[_owner][_spender];
    }

    mapping (address => uint256) balances;
    mapping (address => mapping (address => uint256)) allowed;
}

contract ArthurStandardToken is StandardToken {
    string public name;                   
    uint8 public decimals;                
    string public symbol;                

    function ArthurStandardToken(
        uint256 _initialAmount,
        string _tokenName,
        uint8 _decimalUnits,
        string _tokenSymbol
        ) public {
        balances[msg.sender] = _initialAmount;               // Give the creator all initial tokens
        totalSupply = _initialAmount;                        // Update total supply
        name = _tokenName;                                   // Set the name for display purposes
        decimals = _decimalUnits;                            // Amount of decimals for display purposes
        symbol = _tokenSymbol;                               // Set the symbol for display purposes
    }	

    function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);

        if(!_spender.call(bytes4(bytes32(keccak256("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { return false; }
        return true;
    }
}

• Callisto Network - July 10th, 2019 - Security Audit Report

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_initialAmount","type":"uint256"},{"name":"_tokenName","type":"string"},{"name":"_decimalUnits","type":"uint8"},{"name":"_tokenSymbol","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"}]

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

bzzr://f4567a6299cd8e370c145f587ae2b9bc564137445f9f7ce69ba4bc75796cef93