BioPassport Coin

0xc07a150ecadf2cc352f5586396e344a6b17625eb Copy

ERC20

This contract is an ERC20 token.

Name BioPassport Coin

Symbol BIOT

Decimals 9

Total Supply 8,800,000,000 BIOT

About

BioPassport Token (BIOT) is a cryptocurrency and operates on the Ethereum platform. BioPassport Token has a current supply of 8,800,000,000 with 516,482,722 in circulation. The last known price of BioPassport Token is 0.01430333 USD and is down -6.35 over the last 24 hours. It is currently trading on 3 active market(s) with $83,162.18 traded over the last 24 hours. More information can be found at https://biopassport.io.

Stats

Public Functions 26

Event Types 8

Code Size 29,440 bytes

Events (8)

AdminChanged Event

Parameters

previousAdmin	address
newAdmin	address

Approval Event

Parameters

owner	address
spender	address
value	uint256

MinterAdded Event

Parameters

account

address

MinterRemoved Event

Parameters

account

address

OwnerChanged Event

Parameters

previousOwner	address
newOwner	address

ReserveChanged Event

Parameters

_address	address
amount	uint

Transfer Event

Parameters

from	address
to	address
value	uint256

VaultChanged Event

Parameters

previousVault	address
newVault	address

State Variables (13)

reserves Variable

mapping(address => uint)

noOfTokens Variable

uint

Internal Variable

vault Variable

address

Internal Variable

owner Variable

address

Internal Variable

admin Variable

address

Internal Variable

_cap Variable

uint256

Internal Variable

_balances Variable

mapping(address => uint256)

Internal Variable

_allowances Variable

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

Internal Variable

_totalSupply Variable

uint256

Internal Variable

_minters Variable

Roles.Role

Internal Variable

_name Variable

string

Internal Variable

_symbol Variable

string

Internal Variable

_decimals Variable

uint8

Internal Variable

Functions Expand All Collapse All

name

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function name() public view returns (string memory) {
  return _name;
}

symbol

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function symbol() public view returns (string memory) {
  return _symbol;
}

decimals

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function decimals() public view returns (uint8) {
  return _decimals;
}

isMinter

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability view

Source Code

function isMinter(address account) public view returns (bool) {
  return _minters.has(account);
}

addMinter

Parameters

Name	Type
account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyMinter checks for the following:

null

Source Code

function addMinter(address account) public onlyMinter {
  _addMinter(account);
}

renounceMinter

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Source Code

function renounceMinter() public {
  _removeMinter(_msgSender());
}

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
account	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address account) public view returns (uint256) {
  return _balances[account];
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

UNKNOWN VALUE must be greater than or equal to the result of calling reserveOf with the sender's address

the result of calling _msgSender must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function transfer(address _to, uint256 _value) public returns (bool) {
  // check the reserve
  require(balanceOf(msg.sender).sub(_value) >= reserveOf(msg.sender));
  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 _allowances[owner][spender];
}

approve

Parameters

Name	Type
spender	address
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

spender must not be equal to UNKNOWN VALUE

Source Code

function approve(address spender, uint256 amount) public returns (bool) {
  _approve(_msgSender(), spender, amount);
  return true;
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_from must not be equal to vault

_value must be less than or equal to UNKNOWN VALUE

the result of calling _msgSender must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public returns (bool) {
  require(_from != vault);
  require(_value <= balanceOf(_from).sub(reserves[_from]));
  return super.transferFrom(_from, _to, _value);
}

increaseAllowance

Parameters

Name	Type
spender	address
addedValue	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function increaseAllowance(address spender, uint256 addedValue)
  public
  returns (bool)
{
  _approve(
    _msgSender(),
    spender,
    _allowances[_msgSender()][spender].add(addedValue)
  );
  return true;
}

decreaseAllowance

Parameters

Name	Type
spender	address
subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function decreaseAllowance(address spender, uint256 subtractedValue)
  public
  returns (bool)
{
  _approve(
    _msgSender(),
    spender,
    _allowances[_msgSender()][spender].sub(
      subtractedValue,
      "ERC20: decreased allowance below zero"
    )
  );
  return true;
}

mint

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyMinter checks for the following:

null

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function mint(address account, uint256 amount)
  public
  onlyMinter
  returns (bool)
{
  _mint(account, amount);
  return true;
}

cap

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function cap() public view returns (uint256) {
  return _cap;
}

setReserve

Parameters

Name	Type
_address	address
_reserve	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyAdmin checks for the following:

admin must be equal to the sender's address

Requirements

_reserve must be less than or equal to the result of calling totalSupply

_address must not be equal to UNKNOWN VALUE

Source Code

function setReserve(address _address, uint256 _reserve) public onlyAdmin {
  require(_reserve <= totalSupply());
  require(_address != address(0));

  reserves[_address] = _reserve;
  emit ReserveChanged(_address, _reserve);
}

setVault

Parameters

Name	Type
_newVault	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_newVault must not be equal to UNKNOWN VALUE

_newVault must not be equal to vault

Source Code

function setVault(address _newVault) public onlyOwner {
  require(_newVault != address(0));
  require(_newVault != vault);

  address _oldVault = vault;

  // change vault address
  vault = _newVault;
  emit VaultChanged(_oldVault, _newVault);
}

setOwner

Parameters

Name	Type
_newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyVault checks for the following:

vault must be equal to the sender's address

Requirements

_newOwner must not be equal to UNKNOWN VALUE

_newOwner must not be equal to owner

Source Code

function setOwner(address _newOwner) public onlyVault {
  require(_newOwner != address(0));
  require(_newOwner != owner);

  emit OwnerChanged(owner, _newOwner);
  owner = _newOwner;
}

setAdmin

Parameters

Name	Type
_newAdmin	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwnerOrVault checks for the following:

One or more of the following: - vault must be equal to the sender's address - OR owner must be equal to the sender's address

Requirements

_newAdmin must not be equal to UNKNOWN VALUE

_newAdmin must not be equal to admin

Source Code

function setAdmin(address _newAdmin) public onlyOwnerOrVault {
  require(_newAdmin != address(0));
  require(_newAdmin != admin);

  emit AdminChanged(admin, _newAdmin);
  admin = _newAdmin;
}

getOwner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function getOwner() public view returns (address) {
  return owner;
}

getVault

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function getVault() public view returns (address) {
  return vault;
}

getAdmin

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function getAdmin() public view returns (address) {
  return admin;
}

getOneBiotCoin

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function getOneBiotCoin() public view returns (uint256) {
  return (10**uint256(decimals()));
}

reserveOf

Parameters

Name	Type
_address	address

Properties

Visibility public

Mutability view

Source Code

function reserveOf(address _address) public view returns (uint256 _reserve) {
  return reserves[_address];
}

reserve

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function reserve() public view returns (uint256 _reserve) {
  return reserves[msg.sender];
}

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 ERC20Capped._mint

Parameters

Name	Type
account	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

_cap must be greater than or equal to UNKNOWN VALUE

account must not be equal to UNKNOWN VALUE

Source Code

function _mint(address account, uint256 value) internal {
  require(totalSupply().add(value) <= _cap, "ERC20Capped: cap exceeded");
  super._mint(account, value);
}

internal ERC20._transfer

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address sender,
  address recipient,
  uint256 amount
) internal {
  require(sender != address(0), "ERC20: transfer from the zero address");
  require(recipient != address(0), "ERC20: transfer to the zero address");

  _balances[sender] = _balances[sender].sub(
    amount,
    "ERC20: transfer amount exceeds balance"
  );
  _balances[recipient] = _balances[recipient].add(amount);
  emit Transfer(sender, recipient, amount);
}

internal ERC20._mint

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _mint(address account, uint256 amount) internal {
  require(account != address(0), "ERC20: mint to the zero address");

  _totalSupply = _totalSupply.add(amount);
  _balances[account] = _balances[account].add(amount);
  emit Transfer(address(0), account, amount);
}

internal ERC20._burn

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _burn(address account, uint256 amount) internal {
  require(account != address(0), "ERC20: burn from the zero address");

  _balances[account] = _balances[account].sub(
    amount,
    "ERC20: burn amount exceeds balance"
  );
  _totalSupply = _totalSupply.sub(amount);
  emit Transfer(account, address(0), amount);
}

internal ERC20._approve

Parameters

Name	Type
owner	address
spender	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function _approve(
  address owner,
  address spender,
  uint256 amount
) internal {
  require(owner != address(0), "ERC20: approve from the zero address");
  require(spender != address(0), "ERC20: approve to the zero address");

  _allowances[owner][spender] = amount;
  emit Approval(owner, spender, amount);
}

internal ERC20._burnFrom

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

the result of calling _msgSender must not be equal to UNKNOWN VALUE

Source Code

function _burnFrom(address account, uint256 amount) internal {
  _burn(account, amount);
  _approve(
    account,
    _msgSender(),
    _allowances[account][_msgSender()].sub(
      amount,
      "ERC20: burn amount exceeds allowance"
    )
  );
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal MinterRole.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  _addMinter(_msgSender());
}

internal MinterRole._addMinter

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _addMinter(address account) internal {
  _minters.add(account);
  emit MinterAdded(account);
}

internal MinterRole._removeMinter

Parameters

Name	Type
account	address

Properties

Visibility internal

Mutability transaction

Source Code

function _removeMinter(address account) internal {
  _minters.remove(account);
  emit MinterRemoved(account);
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

BioPassport Coin

ERC20

About link description

Stats

Events (8) keyboard_arrow_up

AdminChanged Event

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

Approval Event

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

MinterAdded Event

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

MinterRemoved Event

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

OwnerChanged Event

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

ReserveChanged 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.

VaultChanged Event

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

State Variables (13) keyboard_arrow_up

reserves Variable

noOfTokens Variable

vault Variable

owner Variable

admin Variable

_cap Variable

_balances Variable

_allowances Variable

_totalSupply Variable

_minters Variable

_name Variable

_symbol Variable

_decimals Variable

Functions Expand All Collapse All

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

isMinter 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

addMinter 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.

onlyMinter checks for the following:

Source Code

renounceMinter 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

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

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

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

approve keyboard_arrow_up

About

Events (8)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

State Variables (13)

name

Parameters

symbol

Parameters

decimals

Parameters

isMinter

Parameters

addMinter

Parameters

Modifiers

renounceMinter

Parameters

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Requirements

allowance

Parameters

approve

Parameters

Requirements

transferFrom

Parameters

Requirements

increaseAllowance

Parameters

Requirements

decreaseAllowance

Parameters

Requirements

mint

Parameters

Modifiers

Requirements

cap

Parameters

setReserve

Parameters

Modifiers

Requirements

setVault

Parameters

Modifiers

Requirements

setOwner

Parameters

Modifiers

Requirements

setAdmin

Parameters

Modifiers

Requirements

getOwner

Parameters

getVault

Parameters

getAdmin

Parameters