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ERC-20
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Overview
Max Total Supply
1,500,000,000 EXPO
Holders
157 (0.00%)
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 |
---|
Contract Name:
OnlineExpoToken
Compiler Version
v0.4.19+commit.c4cbbb05
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2018-01-21 */ pragma solidity ^0.4.19; contract owned { address public owner; function owned() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address newOwner) onlyOwner public { owner = newOwner; } } interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract TokenERC20 { string public name; string public symbol; uint8 public decimals = 8; 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); function TokenERC20( uint256 initialSupply, string tokenName, string 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 != 0x0); require(balanceOf[_from] >= _value); require(balanceOf[_to] + _value > balanceOf[_to]); uint previousBalances = balanceOf[_from] + balanceOf[_to]; balanceOf[_from] -= _value; balanceOf[_to] += _value; Transfer(_from, _to, _value); assert(balanceOf[_from] + balanceOf[_to] == previousBalances); } 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 approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, this, _extraData); return true; } } function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); balanceOf[msg.sender] -= _value; totalSupply -= _value; 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; Burn(_from, _value); return true; } } contract OnlineExpoToken is owned, TokenERC20 { mapping (address => bool) public frozenAccount; event FrozenFunds(address target, bool frozen); function OnlineExpoToken( uint256 initialSupply, string tokenName, string tokenSymbol ) TokenERC20(initialSupply, tokenName, tokenSymbol) public { } function _transfer(address _from, address _to, uint _value) internal { require (_to != 0x0); require (balanceOf[_from] >= _value); require (balanceOf[_to] + _value > balanceOf[_to]); require(!frozenAccount[_from]); require(!frozenAccount[_to]); balanceOf[_from] -= _value; balanceOf[_to] += _value; Transfer(_from, _to, _value); } function freezeAccount(address target, bool freeze) onlyOwner public { frozenAccount[target] = freeze; FrozenFunds(target, freeze); } }
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":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","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":"frozenAccount","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"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"},{"constant":false,"inputs":[{"name":"target","type":"address"},{"name":"freeze","type":"bool"}],"name":"freezeAccount","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","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":false,"name":"target","type":"address"},{"indexed":false,"name":"frozen","type":"bool"}],"name":"FrozenFunds","type":"event"},{"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)
0000000000000000000000000000000000000000000000000000000059682f00000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000b4f6e6c696e65204578706f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000044558504f00000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : initialSupply (uint256): 1500000000
Arg [1] : tokenName (string): Online Expo
Arg [2] : tokenSymbol (string): EXPO
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000059682f00
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [3] : 000000000000000000000000000000000000000000000000000000000000000b
Arg [4] : 4f6e6c696e65204578706f000000000000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [6] : 4558504f00000000000000000000000000000000000000000000000000000000
Swarm Source
bzzr://0f87e8426fbba1e9408711419b30f68c9261d87a7c39574672ca74e004991486
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