ERC-20
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Overview
Max Total Supply
904,911,274.223577000000000001 CEN
Holders
1,915 (0.00%)
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
Balance
1.706296 CENValue
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
CENToken
Compiler Version
v0.4.24+commit.e67f0147
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2018-07-12 */ pragma solidity ^0.4.24; /** * Math operations with safety checks */ contract SafeMath { function safeMul(uint256 a, uint256 b) pure internal returns (uint256) { uint256 c = a * b; judgement(a == 0 || c / a == b); return c; } function safeDiv(uint256 a, uint256 b) pure internal returns (uint256) { judgement(b > 0); uint256 c = a / b; judgement(a == b * c + a % b); return c; } function safeSub(uint256 a, uint256 b) pure internal returns (uint256) { judgement(b <= a); return a - b; } function safeAdd(uint256 a, uint256 b) pure internal returns (uint256) { uint256 c = a + b; judgement(c>=a && c>=b); return c; } function safeMulWithPresent(uint256 a , uint256 b) pure internal returns (uint256){ uint256 c = safeDiv(safeMul(a,b),1000); judgement(b == (c*1000)/a); return c; } function judgement(bool assertion) pure internal { if (!assertion) { revert(); } } } contract CENAuth{ address public owner; constructor () public{ owner = msg.sender; } event LogOwnerChanged (address msgSender ); ///@notice check if the msgSender is owner modifier onlyOwner{ assert(msg.sender == owner); _; } function setOwner (address newOwner) public onlyOwner returns (bool){ if (owner == msg.sender){ owner = newOwner; emit LogOwnerChanged(msg.sender); return true; }else{ return false; } } } contract CENStop is CENAuth{ bool internal stopped = false; modifier stoppable { assert (!stopped); _; } function _status() view public returns (bool){ return stopped; } function stop() public onlyOwner{ stopped = true; } function start() public onlyOwner{ stopped = false; } } contract Token is SafeMath { /* Standard ERC20 token */ uint256 public totalSupply; /// total amount of tokens /// @param _owner The address from which the balance will be retrieved /// @return The balance function balanceOf(address _owner) public view returns (uint256 balance); /// @notice send `_value` token to `_to` from `msg.sender` /// @param _to The address of the recipient /// @param _value The amount of token to be transferred /// @return Whether the transfer was successful or not function transfer(address _to, uint256 _value) public returns (bool success); /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from` /// @param _from The address of the sender /// @param _to The address of the recipient /// @param _value The amount of token to be transferred /// @return Whether the transfer was successful or not function transferFrom(address _from, address _to, uint256 _value) public returns (bool success); /// @notice `msg.sender` approves `_spender` to spend `_value` tokens /// @param _spender The address of the account able to transfer the tokens /// @param _value The amount of tokens to be approved for transfer /// @return Whether the approval was successful or not function approve(address _spender, uint256 _value) public returns (bool success); /// @param _owner The address of the account owning tokens /// @param _spender The address of the account able to transfer the tokens /// @return Amount of remaining tokens allowed to spent function allowance(address _owner, address _spender) view public returns (uint256 remaining); function burn(uint256 amount) public returns (bool); function frozenCheck(address _from , address _to) view private returns (bool); function freezeAccount(address target , bool freeze) public; event Transfer(address indexed _from, address indexed _to, uint256 _value); event Approval(address indexed _owner, address indexed _spender, uint256 _value); event Burn (address indexed _owner , uint256 _value); } contract StandardToken is Token ,CENStop{ function transfer(address _to, uint256 _value) stoppable public returns (bool ind) { //Default assumes totalSupply can't be over max (2^256 - 1). //If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn't wrap. //Replace the if with this one instead. //if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) { require(_to!= address(0)); require(frozenCheck(msg.sender,_to)); if (balances[msg.sender] >= _value && _value > 0) { balances[msg.sender] = safeSub(balances[msg.sender] , _value); balances[_to] = safeAdd(balances[_to],_value); emit Transfer(msg.sender, _to, _value); return true; } else { return false; } } function transferFrom(address _from, address _to, uint256 _value) stoppable public returns (bool success) { //same as above. Replace this line with the following if you want to protect against wrapping uints. require(frozenCheck(_from,_to)); require(_to!= address(0)); if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) { balances[_to] = safeAdd(balances[_to],_value); balances[_from] = safeSub(balances[_from] , _value); allowed[_from][msg.sender] = safeSub(allowed[_from][msg.sender],_value); emit Transfer(_from, _to, _value); return true; } else { return false; } } function balanceOf(address _owner) public view returns (uint256 balance) { return balances[_owner]; } function approve(address _spender, uint256 _value) stoppable public returns (bool success) { require(frozenCheck(_spender,msg.sender)); require(_spender!= address(0)); require(_value>0); require(allowed[msg.sender][_spender]==0); allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } function allowance(address _owner, address _spender) view public returns (uint256 remaining) { return allowed[_owner][_spender]; } function burn(uint256 amount) stoppable onlyOwner public returns (bool){ if(balances[msg.sender] > amount ){ balances[msg.sender] = safeSub(balances[msg.sender],amount); totalSupply = safeSub(totalSupply,amount); emit Burn(msg.sender,amount); return true; }else{ return false; } } function frozenCheck(address _from , address _to) view private returns (bool){ require(!frozenAccount[_from]); require(!frozenAccount[_to]); return true; } function freezeAccount(address target , bool freeze) onlyOwner public{ frozenAccount[target] = freeze; } mapping (address => uint256) internal balances; mapping (address => mapping (address => uint256)) private allowed; mapping (address => bool) private frozenAccount; //Save frozen account } contract CENToken is StandardToken{ string public name = "CEN"; /// Set the full name of this contract uint256 public decimals = 18; /// Set the decimal string public symbol = "CEN"; /// Set the symbol of this contract constructor() public { /// Should have sth in this owner = msg.sender; totalSupply = 1000000000000000000000000000; balances[msg.sender] = totalSupply; } function () stoppable public { revert(); } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://611e9ec10d49cae463651d2d4623ce63274623d182901a8575554dd690cc8a63
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