ERC20
This contract is an ERC20 token.
Name
Polymath
Symbol
POLY
Decimals
18
Total Supply
1,000,000,000 POLY
About
link
description
Polymath (POLY) is a cryptocurrency and operates on the Ethereum platform. Polymath has a current supply of 1,000,000,000 with 618,764,164.5449315 in circulation. The last known price of Polymath is 0.17563549 USD and is down -3.06 over the last 24 hours. It is currently trading on 28 active market(s) with $3,602,590.68 traded over the last 24 hours. More information can be found at https://www.polymath.network/.
Stats
Public Functions
7
Event Types
2
Code Size
8,296 bytes
Library Use
Uses SafeMath for uint256.
Constants (3) keyboard_arrow_up
Functions
balanceOf keyboard_arrow_up
allowance keyboard_arrow_up
transfer keyboard_arrow_up
Requirements help
Source Code
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
// SafeMath.sub will throw if there is not enough balance.
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
transferFrom keyboard_arrow_up
Requirements help
Source Code
function transferFrom(
address _from,
address _to,
uint256 _value
) public returns (bool) {
require(_to != address(0));
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
Transfer(_from, _to, _value);
return true;
}
approve keyboard_arrow_up
Source Code
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
increaseApproval keyboard_arrow_up
Source Code
function increaseApproval(address _spender, uint256 _addedValue)
public
returns (bool)
{
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(
_addedValue
);
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
decreaseApproval keyboard_arrow_up
Source Code
function decreaseApproval(address _spender, uint256 _subtractedValue)
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
Internal Functions
Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.
