contract ERC20Interface {
    /* This is a slight change to the ERC20 base standard.
    function totalSupply() constant returns (uint256 supply);
    is replaced with:
    uint256 public totalSupply;
    This automatically creates a getter function for the totalSupply.
    This is moved to the base contract since public getter functions are not
    currently recognised as an implementation of the matching abstract
    function by the compiler.
    */
    /// 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 view 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 view returns (uint256 remaining);

    // solhint-disable-next-line no-simple-event-func-name  
    event Transfer(address indexed _from, address indexed _to, uint256 _value); 
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
/*
 /$$$$$$            /$$$$$$$  /$$   /$$                         /$$                                            
 /$$$_  $$          | $$__  $$|__/  | $$                        |__/                                            
 | $$$$\ $$ /$$   /$$| $$  \ $$ /$$ /$$$$$$    /$$$$$$$  /$$$$$$  /$$ /$$$$$$$       /$$$$$$   /$$$$$$   /$$$$$$ 
 | $$ $$ $$|  $$ /$$/| $$$$$$$ | $$|_  $$_/   /$$_____/ /$$__  $$| $$| $$__  $$     /$$__  $$ /$$__  $$ /$$__  $$
 | $$\ $$$$ \  $$$$/ | $$__  $$| $$  | $$    | $$      | $$  \ $$| $$| $$  \ $$    | $$  \ $$| $$  \__/| $$  \ $$
 | $$ \ $$$  >$$  $$ | $$  \ $$| $$  | $$ /$$| $$      | $$  | $$| $$| $$  | $$    | $$  | $$| $$      | $$  | $$
 |  $$$$$$/ /$$/\  $$| $$$$$$$/| $$  |  $$$$/|  $$$$$$$|  $$$$$$/| $$| $$  | $$ /$$|  $$$$$$/| $$      |  $$$$$$$
 \______/ |__/  \__/|_______/ |__/   \___/   \_______/ \______/ |__/|__/  |__/|__/ \______/ |__/       \____  $$
 /$$  \ $$
 |  $$$$$$/
 \______/ 
 
 * -> What?
 Due to a weakness in Etherscan.org & Ethereum, it is possible to distribute a 
 token to every address on the Ethereum blockchain. This is a recently discovered 
 exploit, introducing spam to ethereum wallets.
 
 If you see this, chances are you've already seen others, the more apparant this 
 becomes to the Ethereum and Etherscan developers the better.
 
 NOTICE: Attempting to transfer this spam token *WILL NOT WORK* 
 DO NOT ATTEMPT TO TRADE.
 
 * -> Why?
 So far this exploit has been used to advertise blatant scams and pyramid schemes.
 
 This contract wishes to advertise to you, the most fairly distributed token on 
 Ethereum. 0xBitcoin. The first Proof Of Work mineable token in the world. 
 
 * -> 0xBitcoin? WHAT!?
 Visit: https://0xbitcoin.org/
 Chat: https://discord.gg/D4eSf3D
 Mine: 
 mike.rs
 0xpool.io
 tokenminingpool.com 
 0xbtcpool.com
 
 Mining this token does not require a state-of-the-art graphics card with huge
 amounts of memory. You can mine with CUDA and OpenCL enabled graphics cards, even
 your CPU. 
 
 Trade:
 https://forkdelta.github.io/#!/trade/0xBTC-ETH
 https://token.store/trade/0xBTC
 
 0xBitcoin Contract: 
 https://etherscan.io/address/0xb6ed7644c69416d67b522e20bc294a9a9b405b31
 
 * - > Who?
 
 Well I'm not saying. But please be aware I am nothing more than an enthusiast.
 I am not the creator of 0xBitcoin, nor am I affilliated with them.
 
 
 */
function balanceOf(address _owner) public view returns (uint256 balance);

/// @param _owner The address from which the balance will be retrieved
/// @return The balance