ERC-20
Overview
Max Total Supply
269,487 ICOS
Holders
737 ( 0.271%)
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 6 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
ICOSToken
Compiler Version
v0.4.11+commit.68ef5810
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2017-09-28 */ /* * ICOS Token Smart Contract. Copyright © 2017 by ABDK Consulting. * Author: Mikhail Vladimirov <[email protected]> */ pragma solidity ^0.4.11; contract Token { /** * Get total number of tokens in circulation. * * @return total number of tokens in circulation */ function totalSupply () constant returns (uint256 supply); /** * Get number of tokens currently belonging to given owner. * * @param _owner address to get number of tokens currently belonging to the * owner of * @return number of tokens currently belonging to the owner of given address */ function balanceOf (address _owner) constant returns (uint256 balance); /** * Transfer given number of tokens from message sender to given recipient. * * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer to the owner of given address * @return true if tokens were transferred successfully, false otherwise */ function transfer (address _to, uint256 _value) returns (bool success); /** * Transfer given number of tokens from given owner to given recipient. * * @param _from address to transfer tokens from the owner of * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer from given owner to given * recipient * @return true if tokens were transferred successfully, false otherwise */ function transferFrom (address _from, address _to, uint256 _value) returns (bool success); /** * Allow given spender to transfer given number of tokens from message sender. * * @param _spender address to allow the owner of to transfer tokens from * message sender * @param _value number of tokens to allow to transfer * @return true if token transfer was successfully approved, false otherwise */ function approve (address _spender, uint256 _value) returns (bool success); /** * Tell how many tokens given spender is currently allowed to transfer from * given owner. * * @param _owner address to get number of tokens allowed to be transferred * from the owner of * @param _spender address to get number of tokens allowed to be transferred * by the owner of * @return number of tokens given spender is currently allowed to transfer * from given owner */ function allowance (address _owner, address _spender) constant returns (uint256 remaining); /** * Logged when tokens were transferred from one owner to another. * * @param _from address of the owner, tokens were transferred from * @param _to address of the owner, tokens were transferred to * @param _value number of tokens transferred */ event Transfer (address indexed _from, address indexed _to, uint256 _value); /** * Logged when owner approved his tokens to be transferred by some spender. * * @param _owner owner who approved his tokens to be transferred * @param _spender spender who were allowed to transfer the tokens belonging * to the owner * @param _value number of tokens belonging to the owner, approved to be * transferred by the spender */ event Approval ( address indexed _owner, address indexed _spender, uint256 _value); } /* * Safe Math Smart Contract. Copyright © 2016–2017 by ABDK Consulting. * Author: Mikhail Vladimirov <[email protected]> */ pragma solidity ^0.4.11; /** * Provides methods to safely add, subtract and multiply uint256 numbers. */ contract SafeMath { uint256 constant private MAX_UINT256 = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; /** * Add two uint256 values, throw in case of overflow. * * @param x first value to add * @param y second value to add * @return x + y */ function safeAdd (uint256 x, uint256 y) constant internal returns (uint256 z) { if (x > MAX_UINT256 - y) throw; return x + y; } /** * Subtract one uint256 value from another, throw in case of underflow. * * @param x value to subtract from * @param y value to subtract * @return x - y */ function safeSub (uint256 x, uint256 y) constant internal returns (uint256 z) { if (x < y) throw; return x - y; } /** * Multiply two uint256 values, throw in case of overflow. * * @param x first value to multiply * @param y second value to multiply * @return x * y */ function safeMul (uint256 x, uint256 y) constant internal returns (uint256 z) { if (y == 0) return 0; // Prevent division by zero at the next line if (x > MAX_UINT256 / y) throw; return x * y; } } /** * Abstract Token Smart Contract that could be used as a base contract for * ERC-20 token contracts. */ contract AbstractToken is Token, SafeMath { /** * Create new Abstract Token contract. */ function AbstractToken () { // Do nothing } /** * Get number of tokens currently belonging to given owner. * * @param _owner address to get number of tokens currently belonging to the * owner of * @return number of tokens currently belonging to the owner of given address */ function balanceOf (address _owner) constant returns (uint256 balance) { return accounts [_owner]; } /** * Transfer given number of tokens from message sender to given recipient. * * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer to the owner of given address * @return true if tokens were transferred successfully, false otherwise */ function transfer (address _to, uint256 _value) returns (bool success) { if (accounts [msg.sender] < _value) return false; if (_value > 0 && msg.sender != _to) { accounts [msg.sender] = safeSub (accounts [msg.sender], _value); accounts [_to] = safeAdd (accounts [_to], _value); Transfer (msg.sender, _to, _value); } return true; } /** * Transfer given number of tokens from given owner to given recipient. * * @param _from address to transfer tokens from the owner of * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer from given owner to given * recipient * @return true if tokens were transferred successfully, false otherwise */ function transferFrom (address _from, address _to, uint256 _value) returns (bool success) { if (allowances [_from][msg.sender] < _value) return false; if (accounts [_from] < _value) return false; allowances [_from][msg.sender] = safeSub (allowances [_from][msg.sender], _value); if (_value > 0 && _from != _to) { accounts [_from] = safeSub (accounts [_from], _value); accounts [_to] = safeAdd (accounts [_to], _value); Transfer (_from, _to, _value); } return true; } /** * Allow given spender to transfer given number of tokens from message sender. * * @param _spender address to allow the owner of to transfer tokens from * message sender * @param _value number of tokens to allow to transfer * @return true if token transfer was successfully approved, false otherwise */ function approve (address _spender, uint256 _value) returns (bool success) { allowances [msg.sender][_spender] = _value; Approval (msg.sender, _spender, _value); return true; } /** * Tell how many tokens given spender is currently allowed to transfer from * given owner. * * @param _owner address to get number of tokens allowed to be transferred * from the owner of * @param _spender address to get number of tokens allowed to be transferred * by the owner of * @return number of tokens given spender is currently allowed to transfer * from given owner */ function allowance (address _owner, address _spender) constant returns (uint256 remaining) { return allowances [_owner][_spender]; } /** * Mapping from addresses of token holders to the numbers of tokens belonging * to these token holders. */ mapping (address => uint256) accounts; /** * Mapping from addresses of token holders to the mapping of addresses of * spenders to the allowances set by these token holders to these spenders. */ mapping (address => mapping (address => uint256)) private allowances; } contract ICOSToken is AbstractToken { /** * Address of the owner of this smart contract. */ address owner; /** * Total number of tokens ins circulation. */ uint256 tokensCount; /** * True if tokens transfers are currently frozen, false otherwise. */ bool frozen = false; /** * Create new ICOS Token Smart Contract, make message sender to be the owner * of smart contract, issue given number of tokens and give them to message * sender. * * @param _tokensCount number of tokens to issue and give to message sender */ function ICOSToken (uint256 _tokensCount) { tokensCount = _tokensCount; accounts [msg.sender] = _tokensCount; owner = msg.sender; } /** * Get name of this token. * * @return name of this token */ function name () constant returns (string name) { return "ICOS"; } /** * Get number of decimals for this token. * * @return number of decimals for this token */ function decimals () constant returns (uint8 decimals) { return 6; } /** * Get total number of tokens in circulation. * * @return total number of tokens in circulation */ function totalSupply () constant returns (uint256 supply) { return tokensCount; } /** * Transfer given number of tokens from message sender to given recipient. * * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer to the owner of given address * @return true if tokens were transferred successfully, false otherwise */ function transfer (address _to, uint256 _value) returns (bool success) { if (frozen) return false; else return AbstractToken.transfer (_to, _value); } /** * Transfer given number of tokens from given owner to given recipient. * * @param _from address to transfer tokens from the owner of * @param _to address to transfer tokens to the owner of * @param _value number of tokens to transfer from given owner to given * recipient * @return true if tokens were transferred successfully, false otherwise */ function transferFrom (address _from, address _to, uint256 _value) returns (bool success) { if (frozen) return false; else return AbstractToken.transferFrom (_from, _to, _value); } /** * Change how many tokens given spender is allowed to transfer from message * spender. In order to prevent double spending of allowance, this method * receives assumed current allowance value as an argument. If actual * allowance differs from an assumed one, this method just returns false. * * @param _spender address to allow the owner of to transfer tokens from * message sender * @param _currentValue assumed number of tokens currently allowed to be * transferred * @param _newValue number of tokens to allow to transfer * @return true if token transfer was successfully approved, false otherwise */ function approve (address _spender, uint256 _currentValue, uint256 _newValue) returns (bool success) { if (allowance (msg.sender, _spender) == _currentValue) return approve (_spender, _newValue); else return false; } /** * Burn given number of tokens belonging to message sender. * * @param _value number of tokens to burn * @return true on success, false on error */ function burnTokens (uint256 _value) returns (bool success) { if (_value > accounts [msg.sender]) return false; else if (_value > 0) { accounts [msg.sender] = safeSub (accounts [msg.sender], _value); tokensCount = safeSub (tokensCount, _value); return true; } else return true; } /** * Set new owner for the smart contract. * May only be called by smart contract owner. * * @param _newOwner address of new owner of the smart contract */ function setOwner (address _newOwner) { if (msg.sender != owner) throw; owner = _newOwner; } /** * Freeze token transfers. * May only be called by smart contract owner. */ function freezeTransfers () { if (msg.sender != owner) throw; if (!frozen) { frozen = true; Freeze (); } } /** * Unfreeze token transfers. * May only be called by smart contract owner. */ function unfreezeTransfers () { if (msg.sender != owner) throw; if (frozen) { frozen = false; Unfreeze (); } } /** * Logged when token transfers were frozen. */ event Freeze (); /** * Logged when token transfers were unfrozen. */ event Unfreeze (); }
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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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000000000000000000000000000000000089bf1f0240
-----Decoded View---------------
Arg [0] : _tokensCount (uint256): 591617000000
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000089bf1f0240
Swarm Source
bzzr://02e17aeec54bbe6d83c363123e6f20d6582d5cd6bf867ed9c8fdcfc2abd9d8d1
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