Wrapped BTC

0x2260fac5e5542a773aa44fbcfedf7c193bc2c599 Copy

ERC20

This contract is an ERC20 token.

Name Wrapped BTC

Symbol WBTC

Decimals 8

Total Supply 16,373 WBTC

About

Wrapped Bitcoin (WBTC) is a cryptocurrency and operates on the Ethereum platform. Wrapped Bitcoin has a current supply of 196,274.97459399. The last known price of Wrapped Bitcoin is 31,978.96880259 USD and is up 1.73 over the last 24 hours. It is currently trading on 135 active market(s) with $203,752,309.18 traded over the last 24 hours. More information can be found at https://wbtc.network.

Stats

Public Functions 20

Event Types 9

Code Size 18,286 bytes

Events (9)

Approval Event

Parameters

owner	address
spender	address
value	uint256

Burn Event

Parameters

burner	address
value	uint256

Mint Event

Parameters

to	address
amount	uint256

MintFinished Event

Parameters

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

State Variables (10)

name Variable

string

symbol Variable

string

decimals Variable

uint8

mintingFinished Variable

bool

owner Variable

address

paused Variable

bool

pendingOwner 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

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 {
  revert("renouncing ownership is blocked");
}

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

Source Code

function transferOwnership(address newOwner) public onlyOwner {
  pendingOwner = newOwner;
}

claimOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPendingOwner checks for the following:

pendingOwner must be equal to the sender's address

Source Code

function claimOwnership() public onlyPendingOwner {
  emit OwnershipTransferred(owner, pendingOwner);
  owner = pendingOwner;
  pendingOwner = address(0);
}

reclaimToken

Parameters

Name	Type
_token	ERC20Basic

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function reclaimToken(ERC20Basic _token) external onlyOwner {
  uint256 balance = _token.balanceOf(this);
  _token.safeTransfer(owner, balance);
}

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

whenNotPaused checks for the following:

paused must not be true

Requirements

_value must be less than or equal to balances for the sender's address

_to must not be equal to UNKNOWN VALUE

Source Code

function transfer(address _to, uint256 _value)
  public
  whenNotPaused
  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

whenNotPaused checks for the following:

paused must not be true

Requirements

_value must be less than or equal to balances for _from

_value must be less than or equal to allowed for _from for the sender's address

_to must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public whenNotPaused 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	uint256

Properties

Visibility public

Mutability transaction

Source Code

function increaseApproval(address _spender, uint256 _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

Parameters

Name	Type
_spender	address
_subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Source Code

function decreaseApproval(address _spender, uint256 _subtractedValue)
  public
  returns (bool)
{
  uint256 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;
}

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);
}

burn

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must be less than or equal to balances for the sender's address

Source Code

function burn(uint256 _value) public {
  _burn(msg.sender, _value);
}

mint

Parameters

Name	Type
_to	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

hasMintPermission checks for the following:

owner must be equal to the sender's address

canMint checks for the following:

mintingFinished must not be true

Source Code

function mint(address _to, uint256 _amount)
  public
  hasMintPermission
  canMint
  returns (bool)
{
  totalSupply_ = totalSupply_.add(_amount);
  balances[_to] = balances[_to].add(_amount);
  emit Mint(_to, _amount);
  emit Transfer(address(0), _to, _amount);
  return true;
}

finishMinting

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 finishMinting() public onlyOwner returns (bool) {
  return false;
}

burn

Parameters

Name	Type
value	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_value must be less than or equal to balances for the sender's address

Source Code

function burn(uint256 value) public onlyOwner {
  super.burn(value);
}

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.

internal Ownable._transferOwnership

Parameters

Name	Type
_newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

_newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address _newOwner) internal {
  require(_newOwner != address(0));
  emit OwnershipTransferred(owner, _newOwner);
  owner = _newOwner;
}

internal BurnableToken._burn

Parameters

Name	Type
_who	address
_value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

_value must be less than or equal to balances for the sender's address

Source Code

function _burn(address _who, uint256 _value) internal {
  require(_value <= balances[_who]);
  // no need to require value <= totalSupply, since that would imply the
  // sender's balance is greater than the totalSupply, which *should* be an assertion failure

  balances[_who] = balances[_who].sub(_value);
  totalSupply_ = totalSupply_.sub(_value);
  emit Burn(_who, _value);
  emit Transfer(_who, address(0), _value);
}

internal Ownable._transferOwnership

Parameters

Name	Type
_newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

_newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address _newOwner) internal {
  require(_newOwner != address(0));
  emit OwnershipTransferred(owner, _newOwner);
  owner = _newOwner;
}

internal Ownable._transferOwnership

Parameters

Name	Type
_newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

_newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address _newOwner) internal {
  require(_newOwner != address(0));
  emit OwnershipTransferred(owner, _newOwner);
  owner = _newOwner;
}

internal Ownable._transferOwnership

Parameters

Name	Type
_newOwner	address

Properties

Visibility internal

Mutability transaction

Requirements

_newOwner must not be equal to UNKNOWN VALUE

Source Code

function _transferOwnership(address _newOwner) internal {
  require(_newOwner != address(0));
  emit OwnershipTransferred(owner, _newOwner);
  owner = _newOwner;
}

Wrapped BTC

ERC20

About link description

Stats

Events (9) keyboard_arrow_up

Approval Event

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

Burn Event

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

Mint Event

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

MintFinished 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.

State Variables (10) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

mintingFinished Variable

owner Variable

paused Variable

pendingOwner Variable

allowed Variable

balances Variable

totalSupply_ Variable

Functions Expand All Collapse All

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

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:

Source Code

claimOwnership 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.

onlyPendingOwner checks for the following:

Source Code

reclaimToken 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

About

Events (9)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

State Variables (10)

renounceOwnership

Parameters

Modifiers

transferOwnership

Parameters

Modifiers

claimOwnership

Parameters

Modifiers

reclaimToken

Parameters

Modifiers

pause

Parameters

Modifiers

unpause

Parameters

Modifiers

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Modifiers

Requirements

allowance

Parameters

transferFrom

Parameters

Modifiers

Requirements

approve

Parameters

Modifiers

increaseApproval

Parameters

decreaseApproval

Parameters

increaseApproval

Parameters

Modifiers

decreaseApproval

Parameters

Modifiers

burn

Parameters

Requirements

mint

Parameters

Modifiers

finishMinting

Parameters

Modifiers

burn

Parameters

Modifiers

Requirements