Blockwell

CrypteriumToken

ERC20

This contract is an ERC20 token.

Name CrypteriumToken
Symbol CRPT
Decimals 18
Total Supply 99,489,833 CRPT

About link

Crypterium is building a mobile app that lets users spend cryptocurrency in everyday life. Using the Crypterium App, users can reportedly trade cryptocurrencies, top up their phones, open a savings account, and order its global crypto card. Crypterium claims to have over 400,000 registered users is and counts Keith Teare, co-founder of TechCrunch, amongst its advisers. The project has also been identified as one of the 'Emerging 50' in a joint 'FinTech 100' report by KPMG and H2Ventures. The app can be downloaded at: - Apple Store - https://itunes.apple.com/US/app/id1360632912?mt=8%29 - Google App - https://play.google.com/store/apps/details?id=com.crypterium

Stats

Public Functions 11
Event Types 5
Code Size 6,339 bytes

Approval Event

Parameters help
owner
address help
spender
address help
value
uint256 help

Burn Event

Parameters help
burner
address help
value
uint256 help

Mint Event

Parameters help
to
address help
amount
uint256 help

MintFinished Event

Parameters 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) onlyOwner public {
        require(newOwner != address(0));      
        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

whenTransferAllowed checks for the following:
Source Code
    function transfer(address _to, uint256 _value) whenTransferAllowed public returns (bool) {
        require(_to != address(0));
        require(_value <= balances[msg.sender]);
        
        balances[msg.sender] = balances[msg.sender] - _value;
        balances[_to] = balances[_to] + _value;
        //assert(balances[_to] >= _value); no need to check, since mint has limited hardcap
        Transfer(msg.sender, _to, _value);
        return true;
    }

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 public 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

whenTransferAllowed checks for the following:

Requirements help

Source Code
    function transferFrom(address _from, address _to, uint256 _value) whenTransferAllowed public returns (bool) {
        require(_to != address(0));
        require(_value <= balances[_from]);
        require(_value <= allowed[_from][msg.sender]);
        
        balances[_from] = balances[_from] - _value;
        balances[_to] = balances[_to] + _value;
        //assert(balances[_to] >= _value); no need to check, since mint has limited hardcap
        allowed[_from][msg.sender] = allowed[_from][msg.sender] - _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
Source Code
    function approve(address _spender, uint256 _value) public returns (bool) {
        //NOTE: To prevent attack vectors like the one discussed here: 
        //https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729,
        //clients SHOULD make sure to create user interfaces in such a way 
        //that they set the allowance first to 0 before setting it to another value for the same spender. 
    
        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 constant
Source Code
    function allowance(address _owner, address _spender) public constant returns (uint256 remaining) {
        return allowed[_owner][_spender];
    }

allowTransfer keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help transaction
Source Code
    function allowTransfer() onlyOwner public {
        transferAllowed = true;
    }

mint keyboard_arrow_up

Parameters help

Name Type
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
    function mint(address _to, uint256 _value) onlyOwner saleIsOn canMint public returns (bool) {
        require(_to != address(0));
        
        uint restrictedTokens = _value * restrictedPercent / (100 - restrictedPercent);
        uint _amount = _value + restrictedTokens;
        assert(_amount >= _value);
        
        if(_amount + totalSupply <= hardcap){
        
            totalSupply = totalSupply + _amount;
            
            assert(totalSupply >= _amount);
            
            balances[msg.sender] = balances[msg.sender] + _amount;
            assert(balances[msg.sender] >= _amount);
            Mint(msg.sender, _amount);
        
            transfer(_to, _value);
            transfer(restricted, restrictedTokens);
        }
        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 public returns (bool) {
        mintingFinished = true;
        MintFinished();
        return true;
    }

burn keyboard_arrow_up

Parameters help

Name Type
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
    function burn(uint256 _value) public returns (bool) {
        require(_value <= balances[msg.sender]);
        // no need to require value <= totalSupply, since that would imply the
        // sender's balance is greater than the totalSupply, which *should* be an assertion failure
        balances[msg.sender] = balances[msg.sender] - _value;
        totalSupply = totalSupply - _value;
        Burn(msg.sender, _value);
        return true;
    }

burnFrom keyboard_arrow_up

Parameters help

Name Type
_from
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
    function burnFrom(address _from, uint256 _value) public returns (bool success) {
        require(_value <= balances[_from]);
        require(_value <= allowed[_from][msg.sender]);
        balances[_from] = balances[_from] - _value;
        allowed[_from][msg.sender] = allowed[_from][msg.sender] - _value;
        totalSupply = totalSupply - _value;
        Burn(_from, _value);
        return true;
    }