ERC20
This contract is an ERC20 token.
Name
HoloToken
Symbol
HOT
Decimals
18
Total Supply
177,619,433,541 HOT
About link description
Holo (HOT) is a cryptocurrency and operates on the Ethereum platform. Holo has a current supply of 177,619,433,541.14133 with 172,673,864,847.79962 in circulation. The last known price of Holo is 0.00514464 USD and is down -0.85 over the last 24 hours. It is currently trading on 81 active market(s) with $61,385,064.01 traded over the last 24 hours. More information can be found at https://holochain.org/.
Stats
Public Functions
13
Event Types
6
Code Size
9,326 bytes
Library Use
Uses SafeMath for uint256.
Events (6) keyboard_arrow_up
State Variables (7) keyboard_arrow_up
Functions
transferOwnership keyboard_arrow_up
Modifiers help
onlyOwner checks for the following:
Source Code
function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0));
OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
transfer keyboard_arrow_up
Modifiers help
whenMintingFinished checks for the following:
mintingFinished must be true
Requirements 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
transferFrom keyboard_arrow_up
Modifiers help
whenMintingFinished checks for the following:
mintingFinished must be true
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
Modifiers help
whenMintingFinished checks for the following:
mintingFinished must be true
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
increaseApproval keyboard_arrow_up
Source Code
function increaseApproval(address _spender, uint256 _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
Source Code
function decreaseApproval(address _spender, uint256 _subtractedValue)
public
returns (bool)
{
uint256 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
mint keyboard_arrow_up
Modifiers help
onlyMinter checks for the following:
canMint checks for the following:
Requirements help
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
setDestroyer keyboard_arrow_up
Modifiers help
onlyOwner checks for the following:
Source Code
function setDestroyer(address _destroyer) external onlyOwner {
destroyer = _destroyer;
}
burn keyboard_arrow_up
Modifiers help
onlyDestroyer checks for the following:
Requirements help
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);
}
Internal Functions
Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.