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 creating a global platform for issuing and investing in securities tokens. Polymath’s standard for blockchain security tokens aims to integrate the necessary regulatory requirements into smart contracts and comply with regulations. The project simplifies the legal process of creating and selling security tokens. It establishes a new token standard (ST20) and enforces compliance by whitelisting authorized investors and their Ethereum wallet addresses. The POLY token is used for payments on the platform, which facilitates exchanges between issuers, investors, service providers, and developers.
Stats
Public Functions
7
Event Types
2
Code Size
8,296 bytes
Library Use
Uses SafeMath for uint256.
Events (2) 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, uint _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, uint _subtractedValue) public returns (bool) {
uint 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;
}
