https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
contract ERC20 {
function totalSupply() constant returns (uint theTotalSupply);
function balanceOf(address _owner) constant returns (uint balance);
function transfer(address _to, uint _value) returns (bool success);
function transferFrom(address _from, address _to, uint _value) returns (bool success);
function approve(address _spender, uint _value) returns (bool success);
function allowance(address _owner, address _spender) constant returns (uint remaining);
event Transfer(address indexed _from, address indexed _to, uint _value);
event Approval(address indexed _owner, address indexed _spender, uint _value);
}
interface ERC223Token {
uint public totalSupply;
function balanceOf(address who) public view returns (uint);
function name() public view returns (string _name);
function symbol() public view returns (string _symbol);
function decimals() public view returns (uint8 _decimals);
function totalSupply() public view returns (uint256 _supply);
function transfer(address to, uint value) public returns (bool ok);
function transfer(address to, uint value, bytes data) public returns (bool ok);
function transfer(address to, uint value, bytes data, string custom_fallback) public returns (bool ok);
event Transfer(address indexed from, address indexed to, uint value, bytes indexed data);
}
interface ERC777Token {
function name() public constant returns (string);
function symbol() public constant returns (string);
function totalSupply() public constant returns (uint256);
function granularity() public constant returns (uint256);
function balanceOf(address owner) public constant returns (uint256);
function send(address to, uint256 amount) public;
function send(address to, uint256 amount, bytes userData) public;
function authorizeOperator(address operator) public;
function revokeOperator(address operator) public;
function isOperatorFor(address operator, address tokenHolder) public constant returns (bool);
function operatorSend(address from, address to, uint256 amount, bytes userData, bytes operatorData) public;
event Sent(address indexed operator, address indexed from, address indexed to, uint256 amount, bytes userData, bytes operatorData);
event Minted(address indexed operator, address indexed to, uint256 amount, bytes operatorData);
event Burned(address indexed operator, address indexed from, uint256 amount, bytes userData, bytes operatorData);
event AuthorizedOperator(address indexed operator, address indexed tokenHolder);
event RevokedOperator(address indexed operator, address indexed tokenHolder);
}