Bancor Network Token

0x1f573d6fb3f13d689ff844b4ce37794d79a7ff1c Copy

ERC20

This contract is an ERC20 token.

Name Bancor Network Token

Symbol BNT

Decimals 18

Total Supply 69,148,529 BNT

About

Bancor (BNT) is a cryptocurrency launched in 2017and operates on the Ethereum platform. Bancor has a current supply of 235,075,994.05773157. The last known price of Bancor is 2.86722244 USD and is down -0.60 over the last 24 hours. It is currently trading on 208 active market(s) with $38,589,189.10 traded over the last 24 hours. More information can be found at https://bancor.network/.

Stats

Public Functions 16

Event Types 6

Code Size 13,813 bytes

Events (6)

Approval Event

Parameters

_owner	address
_spender	address
_value	uint256

Destruction Event

Parameters

_amount

uint256

Issuance Event

Parameters

_amount

uint256

NewSmartToken Event

Parameters

_token

address

OwnerUpdate Event

Parameters

_prevOwner	address
_newOwner	address

Transfer Event

Parameters

_from	address
_to	address
_value	uint256

State Variables (11)

version Variable

string

transfersEnabled Variable

bool

standard Variable

string

name Variable

string

symbol Variable

string

decimals Variable

uint8

totalSupply Variable

uint256

owner Variable

address

newOwner Variable

address

balanceOf Variable

mapping(address => uint256)

allowance Variable

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

Internal Variable

Functions Expand All Collapse All

owner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function owner() public constant returns (address owner) {
  owner;
}

transferOwnership

Parameters

Name	Type
_newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

ownerOnly checks for the following:

owner must be equal to the sender's address

Requirements

_newOwner must not be equal to owner

Source Code

function transferOwnership(address _newOwner) public ownerOnly {
  require(_newOwner != owner);
  newOwner = _newOwner;
}

acceptOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

newOwner must be equal to the sender's address

Source Code

function acceptOwnership() public {
  require(msg.sender == newOwner);
  OwnerUpdate(owner, newOwner);
  owner = newOwner;
  newOwner = 0x0;
}

withdrawTokens

Parameters

Name	Type
_token	IERC20Token
_to	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

ownerOnly checks for the following:

owner must be equal to the sender's address

validAddress checks for the following:

_token must not be equal to 0x0

validAddress checks for the following:

_token must not be equal to 0x0

notThis checks for the following:

_to must not be equal to UNKNOWN VALUE

Source Code

function withdrawTokens(
  IERC20Token _token,
  address _to,
  uint256 _amount
) public ownerOnly validAddress(_token) validAddress(_to) notThis(_to) {
  assert(_token.transfer(_to, _amount));
}

name

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function name() public constant returns (string name) {
  name;
}

symbol

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function symbol() public constant returns (string symbol) {
  symbol;
}

decimals

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function decimals() public constant returns (uint8 decimals) {
  decimals;
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function totalSupply() public constant returns (uint256 totalSupply) {
  totalSupply;
}

balanceOf

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability constant

Source Code

function balanceOf(address _owner) public constant returns (uint256 balance) {
  _owner;
  balance;
}

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability constant

Source Code

function allowance(address _owner, address _spender)
  public
  constant
  returns (uint256 remaining)
{
  _owner;
  _spender;
  remaining;
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

transfersAllowed checks for the following:

transfersEnabled must be true

Source Code

function transfer(address _to, uint256 _value)
  public
  transfersAllowed
  returns (bool success)
{
  assert(super.transfer(_to, _value));

  // transferring to the contract address destroys tokens
  if (_to == address(this)) {
    balanceOf[_to] -= _value;
    totalSupply -= _value;
    Destruction(_value);
  }

  return true;
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

transfersAllowed checks for the following:

transfersEnabled must be true

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public transfersAllowed returns (bool success) {
  assert(super.transferFrom(_from, _to, _value));

  // transferring to the contract address destroys tokens
  if (_to == address(this)) {
    balanceOf[_to] -= _value;
    totalSupply -= _value;
    Destruction(_value);
  }

  return true;
}

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

validAddress checks for the following:

_spender must not be equal to 0x0

Requirements

One or more of the following: - allowance for the sender's address for _spender must be equal to 0 - OR _value must be equal to 0

Source Code

function approve(address _spender, uint256 _value)
  public
  validAddress(_spender)
  returns (bool success)
{
  // if the allowance isn't 0, it can only be updated to 0 to prevent an allowance change immediately after withdrawal
  require(_value == 0 || allowance[msg.sender][_spender] == 0);

  allowance[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);
  return true;
}

disableTransfers

Parameters

Name	Type
_disable	bool

Properties

Visibility public

Mutability transaction

Modifiers

ownerOnly checks for the following:

owner must be equal to the sender's address

Source Code

function disableTransfers(bool _disable) public ownerOnly {
  transfersEnabled = !_disable;
}

issue

Parameters

Name	Type
_to	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

ownerOnly checks for the following:

owner must be equal to the sender's address

validAddress checks for the following:

_spender must not be equal to 0x0

notThis checks for the following:

_to must not be equal to UNKNOWN VALUE

Source Code

function issue(address _to, uint256 _amount)
  public
  ownerOnly
  validAddress(_to)
  notThis(_to)
{
  totalSupply = safeAdd(totalSupply, _amount);
  balanceOf[_to] = safeAdd(balanceOf[_to], _amount);

  Issuance(_amount);
  Transfer(this, _to, _amount);
}

destroy

Parameters

Name	Type
_from	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

ownerOnly checks for the following:

owner must be equal to the sender's address

Source Code

function destroy(address _from, uint256 _amount) public ownerOnly {
  balanceOf[_from] = safeSub(balanceOf[_from], _amount);
  totalSupply = safeSub(totalSupply, _amount);

  Transfer(_from, this, _amount);
  Destruction(_amount);
}

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 SafeMath.safeAdd

Parameters

Name	Type
_x	uint256
_y	uint256

Properties

Visibility internal

Mutability transaction

Requirements

z must be greater than or equal to _x

Source Code

function safeAdd(uint256 _x, uint256 _y) internal returns (uint256) {
  uint256 z = _x + _y;
  assert(z >= _x);
  return z;
}

internal SafeMath.safeSub

Parameters

Name	Type
_x	uint256
_y	uint256

Properties

Visibility internal

Mutability transaction

Requirements

_x must be greater than or equal to _y

Source Code

function safeSub(uint256 _x, uint256 _y) internal returns (uint256) {
  assert(_x >= _y);
  return _x - _y;
}

internal SafeMath.safeMul

Parameters

Name	Type
_x	uint256
_y	uint256

Properties

Visibility internal

Mutability transaction

Requirements

One or more of the following: - _y must be equal to z / _x - OR _x must be equal to 0

Source Code

function safeMul(uint256 _x, uint256 _y) internal returns (uint256) {
  uint256 z = _x * _y;
  assert(_x == 0 || z / _x == _y);
  return z;
}

Bancor Network Token

ERC20

About link description

Stats

Events (6) keyboard_arrow_up

Approval Event

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

Destruction Event

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

Issuance Event

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

NewSmartToken Event

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

OwnerUpdate 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.

State Variables (11) keyboard_arrow_up

version Variable

transfersEnabled Variable

standard Variable

name Variable

symbol Variable

decimals Variable

totalSupply Variable

owner Variable

newOwner Variable

balanceOf Variable

allowance Variable

Functions Expand All Collapse All

owner 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

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.

ownerOnly 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

acceptOwnership keyboard_arrow_up

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

Properties

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

withdrawTokens 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.

ownerOnly checks for the following:

validAddress checks for the following:

validAddress checks for the following:

notThis checks for the following:

Source Code

name 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

symbol 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

decimals 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

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

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

transfer keyboard_arrow_up

About

Events (6)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

State Variables (11)

owner

Parameters

transferOwnership

Parameters

Modifiers

Requirements

acceptOwnership

Parameters

Requirements

withdrawTokens

Parameters

Modifiers

name

Parameters

symbol

Parameters

decimals

Parameters

totalSupply

Parameters

balanceOf

Parameters

allowance

Parameters

transfer

Parameters

Modifiers

transferFrom

Parameters

Modifiers

approve

Parameters

Modifiers

Requirements

disableTransfers

Parameters

Modifiers

issue

Parameters

Modifiers

destroy

Parameters

Modifiers

internal SafeMath.safeAdd

Parameters

Requirements

internal SafeMath.safeSub

Parameters

Requirements

internal SafeMath.safeMul

Parameters

Requirements