Blockwell

OMGToken

ERC20

This contract is an ERC20 token.

Name OMGToken
Symbol OMG
Decimals 18
Total Supply 140,245,398 OMG

About link description

OMG Network (first developed as OmiseGO) is a non-custodial, Layer 2 scaling solution for transferring value on Ethereum. How the protocol processes transactions is centralized, but its Plasma-based design aims to decentralize network security. It also relies on Ethereum at its final arbitration layer. Most blockchain ecosystems are limited by low throughput, high and unpredictable transaction fees, and poor user experience. The project's team believes these are barriers that need to be overcome before businesses and developers will adopt blockchain for real-world applications, leading them to develop the OMG Network. The core security proposition of Plasma revolves around honest users being able to exit the child chain (in other words, withdraw funds to the root chain) at any time. To exit the child chain, a user submits an exit transaction – along with an exit bond – to the root chain. The exit is subject to a "challenge period," during which any user can prove, if applicable, that the exit is invalid. If successfully shown to be invalid, the exit is not processed, and the challenger is awarded the exit bond. This exit game is solely dependent on the root chain. As the child chain relies on the root chain to be its ultimate arbiter, it must periodically commit a hashed version of its state changes to the root chain by way of a smart contract. As opposed to submitting individual transaction data onto the root chain, the child chain bundles transactions into a Merkle tree and submits the root hash. Beyond these core elements, there is no prescribed configuration for a Plasma chain. They can take on different consensus protocols, block validation mechanisms, or fraud proofs. The design is adaptable to the use case. OMG Network is based on the Plasma MoreVP design, an extension of Minimum Viable Plasma optimized for the settlement of payments and value exchange between users and exchanges. The original OMG Network team (under the OmiseGO name) co-authored the original Plasma white paper with Joseph Poon and was also the first project to perform an airdrop, a way to more widely share ownership of our token with the existing Ethereum community.

Stats

Public Functions 11
Event Types 6
Code Size 10,480 bytes

Library Use

Uses SafeMath for uint256.

Approval Event

Parameters help
owner
address help
spender
address help
value
uint help

Mint Event

Parameters help
to
address help
value
uint help

MintFinished Event

Parameters help

Pause Event

Parameters help

Transfer Event

Parameters help
from
address help
to
address help
value
uint help

Unpause Event

Parameters help

Functions Expand All Collapse All

transferOwnership keyboard_arrow_up

Parameters help

Name Type
newOwner
address help

Properties

Visibility help public
Mutability help transaction
Source Code
  function transferOwnership(address newOwner) onlyOwner {
    if (newOwner != address(0)) {
      owner = newOwner;
    }
  }

balanceOf keyboard_arrow_up

Parameters help

Name Type
_owner
address help

Properties

Visibility help public
Mutability help constant
Source Code
  function balanceOf(address _owner) constant returns (uint balance) {
    return balances[_owner];
  }

transfer keyboard_arrow_up

Parameters help

Name Type
_to
address help
_value
uint help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Source Code
  function transfer(address _to, uint _value) whenNotPaused {
    super.transfer(_to, _value);
  }

allowance keyboard_arrow_up

Parameters help

Name Type
_owner
address help
_spender
address help

Properties

Visibility help public
Mutability help constant
Source Code
  function allowance(address _owner, address _spender) constant returns (uint remaining) {
    return allowed[_owner][_spender];
  }

transferFrom keyboard_arrow_up

Parameters help

Name Type
_from
address help
_to
address help
_value
uint help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Source Code
  function transferFrom(address _from, address _to, uint _value) whenNotPaused {
    super.transferFrom(_from, _to, _value);
  }

approve keyboard_arrow_up

Parameters help

Name Type
_spender
address help
_value
uint help

Properties

Visibility help public
Mutability help transaction

Requirements help

One or more of the following:
Source Code
  function approve(address _spender, uint _value) {

    // To change the approve amount you first have to reduce the addresses`
    //  allowance to zero by calling `approve(_spender, 0)` if it is not
    //  already 0 to mitigate the race condition described here:
    //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
    if ((_value != 0) && (allowed[msg.sender][_spender] != 0)) throw;

    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
  }

mint keyboard_arrow_up

Parameters help

Name Type
_to
address help
_amount
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
  function mint(address _to, uint _amount) onlyOwner canMint returns (bool) {
    totalSupply = totalSupply.add(_amount);
    balances[_to] = balances[_to].add(_amount);
    Mint(_to, _amount);
    return true;
  }

finishMinting keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help transaction
Source Code
  function finishMinting() onlyOwner returns (bool) {
    mintingFinished = true;
    MintFinished();
    return true;
  }

pause keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help transaction
Source Code
  function pause() onlyOwner whenNotPaused returns (bool) {
    paused = true;
    Pause();
    return true;
  }

unpause keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help transaction
Source Code
  function unpause() onlyOwner whenPaused returns (bool) {
    paused = false;
    Unpause();
    return true;
  }

mintTimelocked keyboard_arrow_up

Parameters help

Name Type
_to
address help
_amount
uint256 help
_releaseTime
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
  function mintTimelocked(address _to, uint256 _amount, uint256 _releaseTime)
    onlyOwner canMint returns (TokenTimelock) {

    TokenTimelock timelock = new TokenTimelock(this, _to, _releaseTime);
    mint(timelock, _amount);

    return timelock;
  }