Blockwell

Quantstamp Token

ERC20

This contract is an ERC20 token.

Name Quantstamp Token
Symbol QSP
Decimals 18
Total Supply 976,442,388 QSP

About link description

Quantstamp (QSP) is a cryptocurrency and operates on the Ethereum platform. Quantstamp has a current supply of 976,442,388.321185 with 713,801,946.7046682 in circulation. The last known price of Quantstamp is 0.02959925 USD and is down -0.51 over the last 24 hours. It is currently trading on 9 active market(s) with $435,196.56 traded over the last 24 hours. More information can be found at https://quantstamp.com/.

Stats

Public Functions 11
Event Types 4
Code Size 14,998 bytes

Events (4) keyboard_arrow_up

Approval Event

Parameters help
owner
address help
spender
address help
value
uint256 help

Burn Event

Parameters help
burner
address help
value
uint256 help

OwnershipTransferred Event

Parameters help
previousOwner
address help
newOwner
address help

Transfer Event

Parameters help
from
address help
to
address help
value
uint256 help

name Constant

string help
Quantstamp Token

symbol Constant

string help
QSP

decimals Constant

uint8 help
18

INITIAL_SUPPLY Constant

uint256 help
1000000000 * UNKNOWN VALUE

CROWDSALE_ALLOWANCE Constant

uint256 help
650000000 * UNKNOWN VALUE

ADMIN_ALLOWANCE Constant

uint256 help
350000000 * UNKNOWN VALUE

crowdSaleAllowance Variable

uint256 help

adminAllowance Variable

uint256 help

crowdSaleAddr Variable

address help

adminAddr Variable

address help

transferEnabled Variable

bool help

totalSupply Variable

uint256 help

owner Variable

address help

allowed Variable

mapping(address => mapping(address => uint256)) help
Internal Variable

balances Variable

mapping(address => uint256) help
Internal Variable

Functions Expand All Collapse All

Parameters help

Name Type
newOwner
address help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function transferOwnership(address newOwner) public onlyOwner {
  require(newOwner != address(0));
  OwnershipTransferred(owner, newOwner);
  owner = newOwner;
}

Parameters help

Name Type
_owner
address help

Properties

Visibility help public
Mutability help constant
Source Code
function balanceOf(address _owner) public constant returns (uint256 balance) {
  return balances[_owner];
}

Parameters help

Name Type
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function transfer(address _to, uint256 _value)
  public
  onlyWhenTransferEnabled
  validDestination(_to)
  returns (bool)
{
  return super.transfer(_to, _value);
}

Parameters help

Name Type
_owner
address help
_spender
address help

Properties

Visibility help public
Mutability help constant
Source Code
function allowance(address _owner, address _spender)
  public
  constant
  returns (uint256 remaining)
{
  return allowed[_owner][_spender];
}

Parameters help

Name Type
_from
address help
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public onlyWhenTransferEnabled validDestination(_to) returns (bool) {
  bool result = super.transferFrom(_from, _to, _value);
  if (result) {
    if (msg.sender == crowdSaleAddr)
      crowdSaleAllowance = crowdSaleAllowance.sub(_value);
    if (msg.sender == adminAddr) adminAllowance = adminAllowance.sub(_value);
  }
  return result;
}

Parameters help

Name Type
_spender
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
function approve(address _spender, uint256 _value) public returns (bool) {
  allowed[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);
  return true;
}

Parameters help

Name Type
_spender
address help
_addedValue
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
function increaseApproval(address _spender, uint256 _addedValue)
  returns (bool success)
{
  allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(
    _addedValue
  );
  Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
  return true;
}

Parameters help

Name Type
_spender
address help
_subtractedValue
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
function decreaseApproval(address _spender, uint256 _subtractedValue)
  returns (bool success)
{
  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;
}

Parameters help

Name Type
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
function burn(uint256 _value) public {
  require(transferEnabled || msg.sender == owner);
  require(balances[msg.sender] >= _value);
  super.burn(_value);
  Transfer(msg.sender, address(0x0), _value);
}

Parameters help

Name Type
_crowdSaleAddr
address help
_amountForSale
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
function setCrowdsale(address _crowdSaleAddr, uint256 _amountForSale)
  external
  onlyOwner
{
  require(!transferEnabled);
  require(_amountForSale <= crowdSaleAllowance);

  // if 0, then full available crowdsale supply is assumed
  uint256 amount = (_amountForSale == 0) ? crowdSaleAllowance : _amountForSale;

  // Clear allowance of old, and set allowance of new
  approve(crowdSaleAddr, 0);
  approve(_crowdSaleAddr, amount);

  crowdSaleAddr = _crowdSaleAddr;
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help transaction
Source Code
function enableTransfer() external onlyOwner {
  transferEnabled = true;
  approve(crowdSaleAddr, 0);
  approve(adminAddr, 0);
  crowdSaleAllowance = 0;
  adminAllowance = 0;
}

Internal Functions Expand All Collapse All

Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.