QuarkChain Token

0xea26c4ac16d4a5a106820bc8aee85fd0b7b2b664 Copy

ERC20

This contract is an ERC20 token.

Name QuarkChain Token

Symbol QKC

Decimals 18

Total Supply 10,000,000,000 QKC

About

QuarkChain (QKC) is a cryptocurrency and operates on the Ethereum platform. QuarkChain has a current supply of 10,000,000,000 with 6,399,906,497 in circulation. The last known price of QuarkChain is 0.01511471 USD and is down -4.67 over the last 24 hours. It is currently trading on 26 active market(s) with $7,691,584.78 traded over the last 24 hours. More information can be found at https://quarkchain.io/.

Stats

Public Functions 15

Event Types 6

Code Size 12,425 bytes

Library Use

Uses SafeMath for uint256.

Events (6)

Approval Event

Parameters

owner	address
spender	address
value	uint256

OwnershipRenounced Event

Parameters

previousOwner

address

OwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

Pause Event

Parameters

Transfer Event

Parameters

from	address
to	address
value	uint256

Unpause Event

Parameters

Constants (1)

INITIAL_SUPPLY Constant

uint

1e28

State Variables (11)

transferable Variable

bool

privateSaleWallet Variable

address

crowdsaleAddress Variable

address

name Variable

string

symbol Variable

string

decimals Variable

uint8

paused Variable

bool

owner Variable

address

allowed Variable

mapping(address => mapping(address => uint256))

Internal Variable

balances Variable

mapping(address => uint256)

Internal Variable

totalSupply_ Variable

uint256

Internal Variable

Functions Expand All Collapse All

transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

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

renounceOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function renounceOwnership() public onlyOwner {
  emit OwnershipRenounced(owner);
  owner = address(0);
}

pause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

whenNotPaused checks for the following:

paused must not be true

Source Code

function pause() public onlyOwner whenNotPaused {
  paused = true;
  emit Pause();
}

unpause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

whenPaused checks for the following:

paused must be true

Source Code

function unpause() public onlyOwner whenPaused {
  paused = false;
  emit Unpause();
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function totalSupply() public view returns (uint256) {
  return totalSupply_;
}

balanceOf

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address _owner) public view returns (uint256) {
  return balances[_owner];
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

validDestination checks for the following:

_to must not be equal to UNKNOWN VALUE

onlyWhenTransferEnabled checks for the following:

Source Code

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

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability view

Source Code

function allowance(address _owner, address _spender)
  public
  view
  returns (uint256)
{
  return allowed[_owner][_spender];
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

validDestination checks for the following:

_to must not be equal to UNKNOWN VALUE

onlyWhenTransferEnabled checks for the following:

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public validDestination(_to) onlyWhenTransferEnabled returns (bool) {
  return super.transferFrom(_from, _to, _value);
}

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Source Code

function approve(address _spender, uint256 _value)
  public
  whenNotPaused
  returns (bool)
{
  return super.approve(_spender, _value);
}

increaseApproval

Parameters

Name	Type
_spender	address
_addedValue	uint

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Source Code

function increaseApproval(address _spender, uint256 _addedValue)
  public
  whenNotPaused
  returns (bool success)
{
  return super.increaseApproval(_spender, _addedValue);
}

decreaseApproval

Parameters

Name	Type
_spender	address
_subtractedValue	uint

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

Source Code

function decreaseApproval(address _spender, uint256 _subtractedValue)
  public
  whenNotPaused
  returns (bool success)
{
  return super.decreaseApproval(_spender, _subtractedValue);
}

enableTransfer

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function enableTransfer() external onlyOwner {
  transferable = true;
}

setCrowdsaleAddress

Parameters

Name	Type
_crowdsaleAddress	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

crowdsaleAddress must be equal to 0x0

_crowdsaleAddress must not be equal to 0x0

Source Code

function setCrowdsaleAddress(address _crowdsaleAddress) external onlyOwner {
  // Can only set one time.
  require(crowdsaleAddress == 0x0);
  require(_crowdsaleAddress != 0x0);
  crowdsaleAddress = _crowdsaleAddress;
  balances[crowdsaleAddress] = INITIAL_SUPPLY;
}

setPrivateSaleAddress

Parameters

Name	Type
_privateSaleWallet	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

privateSaleWallet must be equal to 0x0

Source Code

function setPrivateSaleAddress(address _privateSaleWallet) external onlyOwner {
  // Can only set one time.
  require(privateSaleWallet == 0x0);
  privateSaleWallet = _privateSaleWallet;
}

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.

QuarkChain Token

ERC20

About link description

Stats

Library Use

Events (6) keyboard_arrow_up

Approval Event

Parameters help Event parameters list the data that an event contains.

OwnershipRenounced Event

Parameters help Event parameters list the data that an event contains.

OwnershipTransferred Event

Parameters help Event parameters list the data that an event contains.

Pause Event

Parameters help Event parameters list the data that an event contains.

Transfer Event

Parameters help Event parameters list the data that an event contains.

Unpause Event

Parameters help Event parameters list the data that an event contains.

Constants (1) keyboard_arrow_up

INITIAL_SUPPLY Constant

State Variables (11) keyboard_arrow_up

transferable Variable

privateSaleWallet Variable

crowdsaleAddress Variable

name Variable

symbol Variable

decimals Variable

paused Variable

owner Variable

allowed Variable

balances Variable

totalSupply_ Variable

Functions Expand All Collapse All

transferOwnership keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

renounceOwnership keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Source Code

pause keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

whenNotPaused checks for the following:

Source Code

unpause keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

whenPaused checks for the following:

Source Code

totalSupply keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

balanceOf keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

transfer keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

validDestination checks for the following:

onlyWhenTransferEnabled checks for the following:

Source Code

allowance keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

transferFrom keyboard_arrow_up

About

Events (6)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Constants (1)

State Variables (11)

transferOwnership

Parameters

Modifiers

Requirements

renounceOwnership

Parameters

Modifiers

pause

Parameters

Modifiers

unpause

Parameters

Modifiers

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Modifiers

allowance

Parameters

transferFrom

Parameters

Modifiers

approve

Parameters

Modifiers

increaseApproval

Parameters

Modifiers

decreaseApproval

Parameters

Modifiers

enableTransfer

Parameters

Modifiers

setCrowdsaleAddress

Parameters

Modifiers

Requirements

setPrivateSaleAddress

Parameters

Modifiers

Requirements