Blockwell

HoloToken

ERC20

This contract is an ERC20 token.

Name HoloToken
Symbol HOT
Decimals 18
Total Supply 177,619,433,541 HOT

About link description

Holochain (HOT) is a decentralized application platform that uses peer-to-peer networking for processing agent-centric agreement and consensus mechanisms between users. In Holochain, no true global consensus is maintained. Instead, each agent in the public blockchain maintains a private fork that is managed and stored in a limited way on the public blockchain with a distributed hash table. This enables every device on a network to function independently, and only requires the synchronization of data when necessary, or agreed upon by users. This could translate into higher scalability for dapps hosted on Holochain. The Holo ecosystem relies on hosts that provide processing and storage for distributed applications while earning redeemable credits. Holochain Dapps can be developed with JavaScript or Lisp, with support for front-end systems using CSS, HTML, and JavaScript.

Stats

Public Functions 13
Event Types 6
Code Size 9,326 bytes

Library Use

Uses SafeMath for uint256.

Approval Event

Parameters help
owner
address help
spender
address help
value
uint256 help

Burn Event

Parameters help
amount
uint256 help

Mint Event

Parameters help
to
address help
amount
uint256 help

MintingFinished Event

Parameters help

OwnershipTransferred Event

Parameters help
previousOwner
address help
newOwner
address help

Transfer Event

Parameters help
from
address help
to
address help
value
uint256 help

Functions Expand All Collapse All

transferOwnership keyboard_arrow_up

Parameters help

Name Type
newOwner
address help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
  function transferOwnership(address newOwner) public onlyOwner {
    require(newOwner != address(0));
    OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

transfer keyboard_arrow_up

Parameters help

Name Type
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Source Code
  function transfer(address _to, uint256 _value) public whenMintingFinished returns (bool) {
    require(_to != address(0));
    require(_value <= balances[msg.sender]);

    // SafeMath.sub will throw if there is not enough balance.
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
    return true;
  }

balanceOf keyboard_arrow_up

Parameters help

Name Type
_owner
address help

Properties

Visibility help public
Mutability help view
Source Code
  function balanceOf(address _owner) public view returns (uint256 balance) {
    return balances[_owner];
  }

transferFrom keyboard_arrow_up

Parameters help

Name Type
_from
address help
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Requirements help

Source Code
  function transferFrom(address _from, address _to, uint256 _value) public whenMintingFinished returns (bool) {
    require(_to != address(0));
    require(_value <= balances[_from]);
    require(_value <= allowed[_from][msg.sender]);

    balances[_from] = balances[_from].sub(_value);
    balances[_to] = balances[_to].add(_value);
    allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
    Transfer(_from, _to, _value);
    return true;
  }

approve keyboard_arrow_up

Parameters help

Name Type
_spender
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Source Code
  function approve(address _spender, uint256 _value) public whenMintingFinished returns (bool) {
    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
    return true;
  }

allowance keyboard_arrow_up

Parameters help

Name Type
_owner
address help
_spender
address help

Properties

Visibility help public
Mutability help view
Source Code
  function allowance(address _owner, address _spender) public view returns (uint256) {
    return allowed[_owner][_spender];
  }

increaseApproval keyboard_arrow_up

Parameters help

Name Type
_spender
address help
_addedValue
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
  function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
    allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

decreaseApproval keyboard_arrow_up

Parameters help

Name Type
_spender
address help
_subtractedValue
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
  function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
    uint oldValue = allowed[msg.sender][_spender];
    if (_subtractedValue > oldValue) {
      allowed[msg.sender][_spender] = 0;
    } else {
      allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
    }
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

setMinter keyboard_arrow_up

Parameters help

Name Type
_minter
address help

Properties

Visibility help public
Mutability help transaction
Source Code
  function setMinter(address _minter) external onlyOwner {
    minter = _minter;
  }

mint keyboard_arrow_up

Parameters help

Name Type
_to
address help
_amount
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
  function mint(address _to, uint256 _amount) external onlyMinter canMint  returns (bool) {
    require(balances[_to] + _amount > balances[_to]); // Guard against overflow
    require(totalSupply + _amount > totalSupply);     // Guard against overflow  (this should never happen)
    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() external onlyMinter returns (bool) {
    mintingFinished = true;
    MintingFinished();
    return true;
  }

setDestroyer keyboard_arrow_up

Parameters help

Name Type
_destroyer
address help

Properties

Visibility help public
Mutability help transaction
Source Code
  function setDestroyer(address _destroyer) external onlyOwner {
    destroyer = _destroyer;
  }

burn keyboard_arrow_up

Parameters help

Name Type
_amount
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
  function burn(uint256 _amount) external onlyDestroyer {
    require(balances[destroyer] >= _amount && _amount > 0);
    balances[destroyer] = balances[destroyer].sub(_amount);
    totalSupply = totalSupply.sub(_amount);
    Burn(_amount);
  }