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

The QuarkChain Network is a permissionless blockchain architecture that aims to meet global commercial standards. It aims to provide a secure, decentralized, and scalable blockchain solution to deliver 100,000+ on-chain TPS. The main features of the QuarkChain Network are: - Flexibility: QuarkChain is a public chain that can support multiple consensuses, multiple transaction models ( including virtual machines VMs), ledger, and token economics in one network. It can reportedly adapt to blockchain innovations by customizing consensus, transaction model (including VM), ledger, and token economics in each shard so that to satisfy different requirements of different industries/enterprises/DApps. The network supports two consensus algorithms, PoW and PoSW ( a combination of PoS+ PoW). More consensus algorithms (DPoS, PoS and etc) will be added into different shards in the future. It is EVM-compatible - every DApp deployed on Ethereum can be deployed in QuarkChain. The team plans to add more virtual machines (e.g. EOS VM) in different shards so that developers have more choices. - Scalability: QuarkChain aims to deliver 100,000+ on-chain TPS. Currently, 55000+ peak TPS has already been achieved in TPS competition held within the community - Decentralization: QuarkChain has a two-layered structure and encourages individual miners with different levels of capability to mine directly without joining mining pools. People can choose to mine either in the root chain or in the shard. - Great Usability: QuarkChain supports Native token which enables each shard to have its own tokeneconomics. It also supports scalable cross-shard transactions. Only one account is required to access entire resources in all shards, and smart wallets simplify the management.

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

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 0x0000000000000000000000000000000000000000

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() onlyOwner whenNotPaused public {
    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() onlyOwner whenPaused public {
    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 the address for this contract

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 the address for this contract

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,
    uint _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,
    uint _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;
    }

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.

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

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

approve 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.

whenNotPaused checks for the following:

Source Code

increaseApproval keyboard_arrow_up

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

About

Events (6)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

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