ERC-20
Overview
Max Total Supply
1,000,000,000 KTN
Holders
5,924
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 8 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
TokenERC20
Compiler Version
v0.5.1+commit.c8a2cb62
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2019-03-11 */ pragma solidity ^0.5.1; contract TokenERC20 { string public name; string public symbol; uint8 public decimals = 8; // 18 是建议的默认值 uint256 public totalSupply; mapping (address => uint256) public balanceOf; // mapping (address => mapping (address => uint256)) public allowance; event Transfer(address indexed from, address indexed to, uint256 value); event Burn(address indexed from, uint256 value); constructor(uint256 initialSupply, string memory tokenName, string memory tokenSymbol) public{ totalSupply = initialSupply * 10 ** uint256(decimals); balanceOf[msg.sender] = totalSupply; name = tokenName; symbol = tokenSymbol; } function _transfer(address _from, address _to, uint _value) internal { require(_to != address(0)); require(balanceOf[_from] >= _value); require(balanceOf[_to] + _value > balanceOf[_to]); uint previousBalances = balanceOf[_from] + balanceOf[_to]; balanceOf[_from] -= _value; balanceOf[_to] += _value; assert(balanceOf[_from] + balanceOf[_to] == previousBalances); emit Transfer(_from, _to, _value); } function transfer(address _to, uint256 _value) public { _transfer(msg.sender, _to, _value); } function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= allowance[_from][msg.sender]); // Check allowance allowance[_from][msg.sender] -= _value; _transfer(_from, _to, _value); return true; } function approve(address _spender, uint256 _value) public returns (bool success) { allowance[msg.sender][_spender] = _value; return true; } function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); balanceOf[msg.sender] -= _value; totalSupply -= _value; emit Burn(msg.sender, _value); return true; } function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); require(_value <= allowance[_from][msg.sender]); balanceOf[_from] -= _value; allowance[_from][msg.sender] -= _value; totalSupply -= _value; emit Burn(_from, _value); return true; } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"burn","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_value","type":"uint256"}],"name":"burnFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"initialSupply","type":"uint256"},{"name":"tokenName","type":"string"},{"name":"tokenSymbol","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Burn","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000000000000000000000000000000000003b9aca00000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000034b544e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034b544e0000000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : initialSupply (uint256): 1000000000
Arg [1] : tokenName (string): KTN
Arg [2] : tokenSymbol (string): KTN
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 000000000000000000000000000000000000000000000000000000003b9aca00
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [4] : 4b544e0000000000000000000000000000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [6] : 4b544e0000000000000000000000000000000000000000000000000000000000
Swarm Source
bzzr://506eefa72e06f00300d4f823db0af04496f1b6c926e26f5031cd712d8050fa4a
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