ERC-20
Overview
Max Total Supply
300,000,000 DIDO
Holders
17
Total Transfers
-
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
DIDOToken
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 2018-07-20 */ pragma solidity ^0.4.21; // ---------------------------------------------------------------------------- // Safe maths // ---------------------------------------------------------------------------- library SafeMath { function add(uint a, uint b) internal pure returns (uint c) { c = a + b; require(c >= a); } function sub(uint a, uint b) internal pure returns (uint c) { require(b <= a); c = a - b; } function mul(uint a, uint b) internal pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function div(uint a, uint b) internal pure returns (uint c) { require(b > 0); c = a / b; } } contract ERC20Token { /// @param _owner The address from which the balance will be retrieved /// @return The balance function balanceOf(address _owner) public view returns (uint 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, uint _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, uint _value) public returns (bool success); /// @notice `msg.sender` approves `_addr` to spend `_value` tokens /// @param _spender The address of the account able to transfer the tokens /// @param _value The amount of wei to be approved for transfer /// @return Whether the approval was successful or not function approve(address _spender, uint _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) public view returns (uint remaining); event Transfer(address indexed _from, address indexed _to, uint _value); event Approval(address indexed _owner, address indexed _spender, uint _value); } // ---------------------------------------------------------------------------- // Contract function to receive approval and execute function in one call // // Borrowed from MiniMeToken // ---------------------------------------------------------------------------- contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes data) public; } //------------------------------------------------------------------------ // This Token Contract implements the standard token functionality (https://github.com/ethereum/EIPs/issues/20) as well as the following OPTIONAL extras intended for use by humans. // // In other words. This is intended for deployment in something like a Token Factory or Mist wallet, and then used by humans. // Imagine coins, currencies, shares, voting weight, etc. // Machine-based, rapid creation of many tokens would not necessarily need these extra features or will be minted in other manners. // // 1) Initial Finite Supply (upon creation one specifies how much is minted). // 2) In the absence of a token registry: Optional Decimal, Symbol & Name. // 3) Optional approveAndCall() functionality to notify a contract if an approval() has occurred. // ------------------------------------------------------------------------ contract DIDOToken is ERC20Token { using SafeMath for uint; mapping (address => uint) balances; mapping (address => mapping (address => uint)) allowed; /// ------------------------------------------------------------------------ /// Public variables of the token /// /// NOTE: /// The following variables are OPTIONAL vanities. One does not have to include them. /// They allow one to customise the token contract & in no way influences the core functionality. /// Some wallets/interfaces might not even bother to look at this information. /// ------------------------------------------------------------------------ string public name; //fancy name: eg Simon Bucks uint8 public decimals; //How many decimals to show. ie. There could 1000 base units with 3 decimals. Meaning 0.980 SBX = 980 base units. It's like comparing 1 wei to 1 ether. string public symbol; //An identifier: eg SBX string public version = 'H0.1'; //human 0.1 standard. Just an arbitrary versioning scheme. uint public totalSupply; // ------------------------------------------------------------------------ // Don't accept ETH // ------------------------------------------------------------------------ function() external payable { revert(); } constructor() public { symbol = "DIDO"; // Set the symbol for display purposes name = "Doitdo Axis"; // Set the name for display purposes decimals = 18; // Amount of decimals for display purposes totalSupply = 3 * 10**26; // Update total supply balances[msg.sender] = totalSupply; // Give the creator all initial tokens } function transfer(address _to, uint _value) public returns (bool) { /// 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]) { if (_value > 0 && balances[msg.sender] >= _value) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } else { return false; } } function transferFrom(address _from, address _to, uint _value) public returns (bool) { /// same as above. Replace this line with the following if you want to protect against wrapping uints. /// if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) { if (_value > 0 && balances[_from] >= _value && allowed[_from][msg.sender] >= _value) { balances[_to] = balances[_to].add(_value); balances[_from] = balances[_to].sub(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } else { return false; } } function balanceOf(address _owner) public view returns (uint balance) { return balances[_owner]; } function approve(address _spender, uint _value) public returns (bool success) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } function allowance(address _owner, address _spender) public view returns (uint remaining) { return allowed[_owner][_spender]; } //// Approves and then calls the receiving contract function approveAndCall(address _spender, uint _value, bytes _extraData) public returns (bool success) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); ApproveAndCallFallBack(_spender).receiveApproval(msg.sender, _value, this, _extraData); 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":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"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":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","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":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"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":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://853b28e4c61cc990e0d2d9d4edd54d4b0e479bf4facfa7ab271644027ae7794b
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