ERC20
This contract is an ERC20 token.
Name
Quant
Symbol
QNT
Decimals
18
Total Supply
45,467,000 QNT
About
link
The Quant Network team developed Quant as a cryptocurrency token based on the Ethereum blockchain. The solutions offered by Quant include Overledger OS and GoVerify.
According to the whitepaper, the initial goals of the Overledger project were to develop an interface to connect the world’s networks to multiple blockchains, bridge existing networks to new blockchains, and to develop a blockchain operating system with a protocol and platform that allows developers to create next-generation multi-chain applications.
Their proposition for GoVerify is to allow people to verify and check whether any emails, SMS, mail, or phone calls received appear as legitimate and actually from the stated sender.
Stats
Public Functions
9
Event Types
2
Code Size
8,128 bytes
Events (2) keyboard_arrow_up
Functions
totalSupply keyboard_arrow_up
balanceOf 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);
emit Transfer(msg.sender, _to, _value);
return true;
}allowance keyboard_arrow_up
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);
emit 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;
emit Approval(msg.sender, _spender, _value);
return true;
}mint keyboard_arrow_up
Modifiers help
onlyCrowdsale checks for the following:
Source Code
function mint(address _address, uint256 _value) public onlyCrowdsale {
balances[_address] = balances[_address].add(_value);
emit Transfer(0, _address, _value);
}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);
emit 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);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
