Token

CITY (CITY)

ERC-20 Source Code

API

Overview

Max Total Supply

10,000,000,000 CITY

Holders

11,244

Transfers

Market

Onchain Market Cap

Circulating Supply Market Cap

Other Info

Token Contract (WITH 18 Decimals)

0x08a2246dcb48db6a5a9e1f6bc082752fceddd106

OVERVIEW

The concept of CITY chain is to 'redefine urban life by applying blockchain technology + gamification rules'.

ICO Information

ICO Start Date	:	Apr 15, 2018
ICO End Date	:	Apr 15, 2021
ICO Price	:	$0.33
Country	:	China

#	Exchange	Pair	Price	24H Volume	% Volume

Contract Source Code Verified (Exact Match)

Contract Name:

City

Compiler Version

v0.4.24+commit.e67f0147

Optimization Enabled:

No with 200 runs

Other Settings:

default evmVersion

Contract Source Code (Solidity)

IDE

/**
 *Submitted for verification at Etherscan.io on 2018-07-06
*/

pragma solidity ^0.4.21;


contract City {
    address public owner;
    string public name;
    string public symbol;
    uint8 public decimals = 18;
    uint256 public totalSupply;
    mapping (address => uint256) public balanceOf;
    mapping (address => bool) public frozenAccount;

    event Transfer(address indexed from, address indexed to, uint256 value);

    event FrozenFunds(address target, bool frozen);

    function City(uint256 initialSupply, string tokenName, string tokenSymbol) public{
        owner = msg.sender;
        totalSupply = initialSupply * 10 ** uint256(decimals);
        balanceOf[msg.sender] = totalSupply;
        name = tokenName;
        symbol = tokenSymbol;
    }

    function transfer(address _to, uint _value) public{
        address _from = msg.sender;
        require(!frozenAccount[_from]);
        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 freezeAccount(address target, bool freeze) public{
        require(msg.sender == owner);
        frozenAccount[target] = freeze;
        FrozenFunds(target, freeze);
    }
}

Contract Security Audit

No Contract Security Audit Submitted- Submit Audit Here

Contract ABI

API

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","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":"target","type":"address"},{"name":"freeze","type":"bool"}],"name":"freezeAccount","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":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":false,"name":"target","type":"address"},{"indexed":false,"name":"frozen","type":"bool"}],"name":"FrozenFunds","type":"event"}]

Contract Creation Code

Decompile Bytecode Switch to Opcodes View

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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)

00000000000000000000000000000000000000000000000000000002540be400000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000004434954590000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000044349545900000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : initialSupply (uint256): 10000000000
Arg [1] : tokenName (string): CITY
Arg [2] : tokenSymbol (string): CITY

-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000002540be400
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [4] : 4349545900000000000000000000000000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [6] : 4349545900000000000000000000000000000000000000000000000000000000

Swarm Source

bzzr://e5412a76b9d53451dc062cef3dbf1c975664be283627618768de6d805ab43aed

A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.

Tools & Services