Metronome

0xa3d58c4e56fedcae3a7c43a725aee9a71f0ece4e Copy

ERC20

This contract is an ERC20 token.

Name Metronome

Symbol MET

Decimals 18

Total Supply 12,229,817 MET

About

Metronome (MET) is a cryptocurrency and operates on the Ethereum platform. Metronome has a current supply of 13,217,480.46589085 with 11,931,106.46589085 in circulation. The last known price of Metronome is 2.63157285 USD and is down -1.07 over the last 24 hours. It is currently trading on 11 active market(s) with $78,786.25 traded over the last 24 hours. More information can be found at https://www.metronome.io/.

Identical Contracts

The following contracts have identical source code.

Auctions - 0x9d9bcdd249e439aaab545f59a33812e39a8e3072

AutonomousConverter - 0x686e5ac50d9236a9b7406791256e47feddb26aba

SmartToken - 0xb9a824e6dc289c57fac91c16c77e37666cce20e5

Stats

Public Functions 29

Event Types 7

Code Size 82,825 bytes

Events (7)

Approval Event

Parameters

_owner	address
_spender	address
_value	uint256

Destroy Event

Parameters

_from	address
_value	uint

LogCancelSubscription Event

Parameters

subscriber	address
subscribesTo	address

LogSubscription Event

Parameters

subscriber	address
subscribesTo	address

Mint Event

Parameters

_to	address
_value	uint

OwnershipChanged Event

Parameters

prevOwner	address
newOwner	address

Transfer Event

Parameters

_from	address
_to	address
_value	uint256

Structs (1)

Sub Struct

Members

startTime	uint
payPerWeek	uint
lastWithdrawTime	uint

Constants (3)

name Constant

string

Metronome

symbol Constant

string

MET

decimals Constant

uint8

State Variables (11)

transferAllowed Variable

bool

autonomousConverter Variable

address

minter Variable

address

tokenPorter Variable

address

newOwner Variable

address

owner Variable

address

roots Variable

mapping(address => bytes32)

subs Variable

mapping(address => mapping(address => Sub))

Internal Variable

_allowance Variable

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

Internal Variable

_totalSupply Variable

uint256

Internal Variable

_balanceOf Variable

mapping(address => uint256)

Internal Variable

Functions Expand All Collapse All

changeOwnership

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 owner

Source Code

function changeOwnership(address _newOwner) public onlyOwner returns (bool) {
  require(_newOwner != owner);
  newOwner = _newOwner;
  return true;
}

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 returns (bool) {
  require(msg.sender == newOwner);

  emit OwnershipChanged(owner, newOwner);
  owner = newOwner;
  return true;
}

initMintable

Parameters

Name	Type
_autonomousConverter	address
_minter	address
_initialSupply	uint
_decmult	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_autonomousConverter must not be equal to 0x0

autonomousConverter must be equal to 0x0

_minter must not be equal to 0x0

minter must be equal to 0x0

Source Code

function initMintable(
  address _autonomousConverter,
  address _minter,
  uint256 _initialSupply,
  uint256 _decmult
) public onlyOwner {
  require(autonomousConverter == 0x0 && _autonomousConverter != 0x0);
  require(minter == 0x0 && _minter != 0x0);

  autonomousConverter = _autonomousConverter;
  minter = _minter;
  _totalSupply = _initialSupply.mul(_decmult);
  _balanceOf[_autonomousConverter] = _totalSupply;
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

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

balanceOf

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability constant

Source Code

function balanceOf(address _owner) public constant returns (uint256) {
  return _balanceOf[_owner];
}

setTokenPorter

Parameters

Name	Type
_tokenPorter	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_tokenPorter must not be equal to 0x0

Source Code

function setTokenPorter(address _tokenPorter) public onlyOwner returns (bool) {
  require(_tokenPorter != 0x0);

  tokenPorter = ITokenPorter(_tokenPorter);
  return true;
}

mint

Parameters

Name	Type
_to	address
_value	uint

Properties

Visibility public

Mutability transaction

Requirements

One or more of the following: - the sender's address must be equal to UNKNOWN VALUE - OR minter must be equal to the sender's address

Source Code

function mint(address _to, uint256 _value) public returns (bool) {
  require(msg.sender == minter || msg.sender == address(tokenPorter));
  _balanceOf[_to] = _balanceOf[_to].add(_value);
  _totalSupply = _totalSupply.add(_value);
  emit Mint(_to, _value);
  emit Transfer(0x0, _to, _value);
  return true;
}

destroy

Parameters

Name	Type
_from	address
_value	uint

Properties

Visibility public

Mutability transaction

Requirements

One or more of the following: - the sender's address must be equal to UNKNOWN VALUE - OR autonomousConverter must be equal to the sender's address

Source Code

function destroy(address _from, uint256 _value) public returns (bool) {
  require(
    msg.sender == autonomousConverter || msg.sender == address(tokenPorter)
  );
  _balanceOf[_from] = _balanceOf[_from].sub(_value);
  _totalSupply = _totalSupply.sub(_value);
  emit Destroy(_from, _value);
  emit Transfer(_from, 0x0, _value);
  return true;
}

initToken

Parameters

Name	Type
_autonomousConverter	address
_minter	address
_initialSupply	uint
_decmult	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_autonomousConverter must not be equal to 0x0

autonomousConverter must be equal to 0x0

_minter must not be equal to 0x0

minter must be equal to 0x0

Source Code

function initToken(
  address _autonomousConverter,
  address _minter,
  uint256 _initialSupply,
  uint256 _decmult
) public onlyOwner {
  initMintable(_autonomousConverter, _minter, _initialSupply, _decmult);
}

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)
{
  return _allowance[_owner][_spender];
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

transferable checks for the following:

transferAllowed must be true

Requirements

_to must not be equal to UNKNOWN VALUE

_to must not be equal to minter

_to must not be equal to UNKNOWN VALUE

_to must not be equal to autonomousConverter

Source Code

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

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

transferable checks for the following:

transferAllowed must be true

Requirements

_to must not be equal to UNKNOWN VALUE

_from must not be equal to minter

_to must not be equal to minter

_from must not be equal to UNKNOWN VALUE

_to must not be equal to UNKNOWN VALUE

_from must not be equal to UNKNOWN VALUE

_to must not be equal to UNKNOWN VALUE

_from must not be equal to autonomousConverter

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

Source Code

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

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_spender must not be equal to UNKNOWN VALUE

Source Code

function approve(address _spender, uint256 _value) public returns (bool) {
  require(_spender != address(this));
  _allowance[msg.sender][_spender] = _value;
  emit Approval(msg.sender, _spender, _value);
  return true;
}

multiTransfer

Parameters

Name	Type
bits	uint[]

Properties

Visibility public

Mutability transaction

Modifiers

transferable checks for the following:

transferAllowed must be true

Source Code

function multiTransfer(uint256[] bits) public transferable returns (bool) {
  return super.multiTransfer(bits);
}

approveMore

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function approveMore(address _spender, uint256 _value) public returns (bool) {
  uint256 previous = _allowance[msg.sender][_spender];
  uint256 newAllowance = previous.add(_value);
  _allowance[msg.sender][_spender] = newAllowance;
  emit Approval(msg.sender, _spender, newAllowance);
  return true;
}

approveLess

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function approveLess(address _spender, uint256 _value) public returns (bool) {
  uint256 previous = _allowance[msg.sender][_spender];
  uint256 newAllowance = previous.sub(_value);
  _allowance[msg.sender][_spender] = newAllowance;
  emit Approval(msg.sender, _spender, newAllowance);
  return true;
}

initMETToken

Parameters

Name	Type
_autonomousConverter	address
_minter	address
_initialSupply	uint
_decmult	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

_autonomousConverter must not be equal to 0x0

autonomousConverter must be equal to 0x0

_minter must not be equal to 0x0

minter must be equal to 0x0

Source Code

function initMETToken(
  address _autonomousConverter,
  address _minter,
  uint256 _initialSupply,
  uint256 _decmult
) public onlyOwner {
  initToken(_autonomousConverter, _minter, _initialSupply, _decmult);
}

enableMETTransfers

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

transferAllowed must not be true

Source Code

function enableMETTransfers() public returns (bool) {
  require(!transferAllowed && Auctions(minter).isInitialAuctionEnded());
  transferAllowed = true;
  return true;
}

setRoot

Parameters

Name	Type
data	bytes32

Properties

Visibility public

Mutability transaction

Source Code

function setRoot(bytes32 data) public {
  roots[msg.sender] = data;
}

getRoot

Parameters

Name	Type
addr	address

Properties

Visibility public

Mutability view

Source Code

function getRoot(address addr) public view returns (bytes32) {
  return roots[addr];
}

rootsMatch

Parameters

Name	Type
a	address
b	address

Properties

Visibility public

Mutability view

Source Code

function rootsMatch(address a, address b) public view returns (bool) {
  return roots[a] == roots[b];
}

importMET

Parameters

Name	Type
_originChain	bytes8
_destinationChain	bytes8
_addresses	address[]
_extraData	bytes
_burnHashes	bytes32[]
_supplyOnAllChains	uint[]
_importData	uint[]
_proof	bytes

Properties

Visibility public

Mutability transaction

Requirements

UNKNOWN VALUE must not be equal to 0x0

Source Code

function importMET(
  bytes8 _originChain,
  bytes8 _destinationChain,
  address[] _addresses,
  bytes _extraData,
  bytes32[] _burnHashes,
  uint256[] _supplyOnAllChains,
  uint256[] _importData,
  bytes _proof
) public returns (bool) {
  require(address(tokenPorter) != 0x0);
  return
    tokenPorter.importMET(
      _originChain,
      _destinationChain,
      _addresses,
      _extraData,
      _burnHashes,
      _supplyOnAllChains,
      _importData,
      _proof
    );
}

export

Parameters

Name	Type
_destChain	bytes8
_destMetronomeAddr	address
_destRecipAddr	address
_amount	uint
_fee	uint
_extraData	bytes

Properties

Visibility public

Mutability transaction

Requirements

UNKNOWN VALUE must not be equal to 0x0

Source Code

function export(
  bytes8 _destChain,
  address _destMetronomeAddr,
  address _destRecipAddr,
  uint256 _amount,
  uint256 _fee,
  bytes _extraData
) public returns (bool) {
  require(address(tokenPorter) != 0x0);
  return
    tokenPorter.export(
      msg.sender,
      _destChain,
      _destMetronomeAddr,
      _destRecipAddr,
      _amount,
      _fee,
      _extraData
    );
}

Parameters

Name	Type
_startTime	uint
_payPerWeek	uint
_recipient	address

Properties

Visibility public

Mutability transaction

Requirements

_startTime must be greater than or equal to block.timestamp

_payPerWeek must not be equal to 0

_recipient must not be equal to 0

function subscribe(
  uint256 _startTime,
  uint256 _payPerWeek,
  address _recipient
) public returns (bool) {
  require(_startTime >= block.timestamp);
  require(_payPerWeek != 0);
  require(_recipient != 0);

  subs[msg.sender][_recipient] = Sub(_startTime, _payPerWeek, _startTime);

  emit LogSubscription(msg.sender, _recipient);
  return true;
}

cancelSubscription

Parameters

Name	Type
_recipient	address

Properties

Visibility public

Mutability transaction

Requirements

undefined.startTime must not be equal to 0

undefined.payPerWeek must not be equal to 0

Source Code

function cancelSubscription(address _recipient) public returns (bool) {
  require(subs[msg.sender][_recipient].startTime != 0);
  require(subs[msg.sender][_recipient].payPerWeek != 0);

  subs[msg.sender][_recipient].startTime = 0;
  subs[msg.sender][_recipient].payPerWeek = 0;
  subs[msg.sender][_recipient].lastWithdrawTime = 0;

  emit LogCancelSubscription(msg.sender, _recipient);
  return true;
}

getSubscription

Parameters

Name	Type
_owner	address
_recipient	address

Properties

Visibility public

Mutability constant

Source Code

function getSubscription(address _owner, address _recipient)
  public
  constant
  returns (
    uint256 startTime,
    uint256 payPerWeek,
    uint256 lastWithdrawTime
  )
{
  Sub storage sub = subs[_owner][_recipient];
  return (sub.startTime, sub.payPerWeek, sub.lastWithdrawTime);
}

subWithdraw

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability transaction

Modifiers

transferable checks for the following:

transferAllowed must be true

Requirements

null

Source Code

function subWithdraw(address _owner) public transferable returns (bool) {
  require(subWithdrawFor(_owner, msg.sender));
  return true;
}

multiSubWithdraw

Parameters

Name	Type
_owners	address[]

Properties

Visibility public

Mutability transaction

Source Code

function multiSubWithdraw(address[] _owners) public returns (uint256) {
  uint256 n = 0;
  for (uint256 i = 0; i < _owners.length; i++) {
    if (subWithdrawFor(_owners[i], msg.sender)) {
      n++;
    }
  }
  return n;
}

multiSubWithdrawFor

Parameters

Name	Type
_owners	address[]
_recipients	address[]

Properties

Visibility public

Mutability transaction

Requirements

the number of values in _owners must be equal to the number of values in _recipients

Source Code

function multiSubWithdrawFor(address[] _owners, address[] _recipients)
  public
  returns (uint256)
{
  // owners and recipients need 1-to-1 mapping, must be same length
  require(_owners.length == _recipients.length);

  uint256 n = 0;
  for (uint256 i = 0; i < _owners.length; i++) {
    if (subWithdrawFor(_owners[i], _recipients[i])) {
      n++;
    }
  }

  return n;
}

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 METToken.subWithdrawFor

Parameters

Name	Type
_from	address
_to	address

Properties

Visibility internal

Mutability transaction

Source Code

function subWithdrawFor(address _from, address _to) internal returns (bool) {
  Sub storage sub = subs[_from][_to];

  if (
    sub.startTime > 0 && sub.startTime < block.timestamp && sub.payPerWeek > 0
  ) {
    uint256 weekElapsed = (now.sub(sub.lastWithdrawTime)).div(7 days);
    uint256 amount = weekElapsed.mul(sub.payPerWeek);
    if (weekElapsed > 0 && _balanceOf[_from] >= amount) {
      subs[_from][_to].lastWithdrawTime = block.timestamp;
      _balanceOf[_from] = _balanceOf[_from].sub(amount);
      _balanceOf[_to] = _balanceOf[_to].add(amount);
      emit Transfer(_from, _to, amount);
      return true;
    }
  }
  return false;
}

Metronome

ERC20

About link

Identical Contracts

Stats

Events (7) keyboard_arrow_up

Approval Event

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

Destroy Event

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

LogCancelSubscription Event

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

LogSubscription 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.

OwnershipChanged 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.

Structs (1) keyboard_arrow_up

Sub Struct

Members

Constants (3) keyboard_arrow_up

name Constant

symbol Constant

decimals Constant

State Variables (11) keyboard_arrow_up

transferAllowed Variable

autonomousConverter Variable

minter Variable

tokenPorter Variable

newOwner Variable

owner Variable

roots Variable

subs Variable

_allowance Variable

_totalSupply Variable

_balanceOf Variable

Functions Expand All Collapse All

changeOwnership 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

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

initMintable 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

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

setTokenPorter 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

mint 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

destroy keyboard_arrow_up

About

Events (7)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Structs (1)

Constants (3)

State Variables (11)

changeOwnership

Parameters

Modifiers

Requirements

acceptOwnership

Parameters

Requirements

initMintable

Parameters

Modifiers

Requirements

totalSupply

Parameters

balanceOf

Parameters

setTokenPorter

Parameters

Modifiers

Requirements

mint

Parameters

Requirements

destroy

Parameters

Requirements

initToken

Parameters

Modifiers

Requirements

allowance

Parameters

transfer

Parameters

Modifiers

Requirements

transferFrom

Parameters

Modifiers

Requirements

approve

Parameters

Requirements

multiTransfer

Parameters

Modifiers

approveMore

Parameters

approveLess

Parameters

initMETToken

Parameters

Modifiers

Requirements

enableMETTransfers

Parameters

Requirements

setRoot

Parameters

getRoot

Parameters

rootsMatch