ETH Price: $3,099.43 (-5.55%)
Gas: 8 Gwei

Token

Serve (SERV)
 

Overview

Max Total Supply

10,000,000,000 SERV

Holders

1,785 (0.00%)

Total Transfers

-

Market

Onchain Market Cap

$0.00

Circulating Supply Market Cap

-

Other Info

Token Contract (WITH 18 Decimals)

Loading...
Loading
Loading...
Loading
Loading...
Loading

Click here to update the token information / general information
# Exchange Pair Price  24H Volume % Volume

Contract Source Code Verified (Exact Match)

Contract Name:
ServeToken

Compiler Version
v0.5.0+commit.1d4f565a

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2019-04-23
*/

pragma solidity ^0.5.0;

/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
interface IERC20 {
    function transfer(address to, uint256 value) external returns (bool);

    function approve(address spender, uint256 value) external returns (bool);

    function transferFrom(address from, address to, uint256 value) external returns (bool);

    function totalSupply() external view returns (uint256);

    function balanceOf(address who) external view returns (uint256);

    function allowance(address owner, address spender) external view returns (uint256);

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

    event Approval(address indexed owner, address indexed spender, uint256 value);
}




/// openzeppelin imports





/**
 * @title SafeMath
 * @dev Unsigned math operations with safety checks that revert on error
 */
library SafeMath {
    /**
    * @dev Multiplies two unsigned integers, reverts on overflow.
    */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b);

        return c;
    }

    /**
    * @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero.
    */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
    * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
    */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a);
        uint256 c = a - b;

        return c;
    }

    /**
    * @dev Adds two unsigned integers, reverts on overflow.
    */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a);

        return c;
    }

    /**
    * @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo),
    * reverts when dividing by zero.
    */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b != 0);
        return a % b;
    }
}


/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
 * Originally based on code by FirstBlood:
 * https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 *
 * This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
 * all accounts just by listening to said events. Note that this isn't required by the specification, and other
 * compliant implementations may not do it.
 */
contract ERC20 is IERC20 {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

    mapping (address => mapping (address => uint256)) private _allowed;

    uint256 private _totalSupply;

    /**
    * @dev Total number of tokens in existence
    */
    function totalSupply() public view returns (uint256) {
        return _totalSupply;
    }

    /**
    * @dev Gets the balance of the specified address.
    * @param owner The address to query the balance of.
    * @return An uint256 representing the amount owned by the passed address.
    */
    function balanceOf(address owner) public view returns (uint256) {
        return _balances[owner];
    }

    /**
     * @dev Function to check the amount of tokens that an owner allowed to a spender.
     * @param owner address The address which owns the funds.
     * @param spender address The address which will spend the funds.
     * @return A uint256 specifying the amount of tokens still available for the spender.
     */
    function allowance(address owner, address spender) public view returns (uint256) {
        return _allowed[owner][spender];
    }

    /**
    * @dev Transfer token for a specified address
    * @param to The address to transfer to.
    * @param value The amount to be transferred.
    */
    function transfer(address to, uint256 value) public returns (bool) {
        _transfer(msg.sender, to, value);
        return true;
    }

    /**
     * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
     * Beware that changing an allowance with this method brings the risk that someone may use both the old
     * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
     * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     */
    function approve(address spender, uint256 value) public returns (bool) {
        require(spender != address(0));

        _allowed[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }

    /**
     * @dev Transfer tokens from one address to another.
     * Note that while this function emits an Approval event, this is not required as per the specification,
     * and other compliant implementations may not emit the event.
     * @param from address The address which you want to send tokens from
     * @param to address The address which you want to transfer to
     * @param value uint256 the amount of tokens to be transferred
     */
    function transferFrom(address from, address to, uint256 value) public returns (bool) {
        _allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
        _transfer(from, to, value);
        emit Approval(from, msg.sender, _allowed[from][msg.sender]);
        return true;
    }

    /**
     * @dev Increase the amount of tokens that an owner allowed to a spender.
     * approve should be called when allowed_[_spender] == 0. To increment
     * allowed value is better to use this function to avoid 2 calls (and wait until
     * the first transaction is mined)
     * From MonolithDAO Token.sol
     * Emits an Approval event.
     * @param spender The address which will spend the funds.
     * @param addedValue The amount of tokens to increase the allowance by.
     */
    function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
        require(spender != address(0));

        _allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(addedValue);
        emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
        return true;
    }

    /**
     * @dev Decrease the amount of tokens that an owner allowed to a spender.
     * approve should be called when allowed_[_spender] == 0. To decrement
     * allowed value is better to use this function to avoid 2 calls (and wait until
     * the first transaction is mined)
     * From MonolithDAO Token.sol
     * Emits an Approval event.
     * @param spender The address which will spend the funds.
     * @param subtractedValue The amount of tokens to decrease the allowance by.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
        require(spender != address(0));

        _allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(subtractedValue);
        emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
        return true;
    }

    /**
    * @dev Transfer token for a specified addresses
    * @param from The address to transfer from.
    * @param to The address to transfer to.
    * @param value The amount to be transferred.
    */
    function _transfer(address from, address to, uint256 value) internal {
        require(to != address(0));

        _balances[from] = _balances[from].sub(value);
        _balances[to] = _balances[to].add(value);
        emit Transfer(from, to, value);
    }

    /**
     * @dev Internal function that mints an amount of the token and assigns it to
     * an account. This encapsulates the modification of balances such that the
     * proper events are emitted.
     * @param account The account that will receive the created tokens.
     * @param value The amount that will be created.
     */
    function _mint(address account, uint256 value) internal {
        require(account != address(0));

        _totalSupply = _totalSupply.add(value);
        _balances[account] = _balances[account].add(value);
        emit Transfer(address(0), account, value);
    }

    /**
     * @dev Internal function that burns an amount of the token of a given
     * account.
     * @param account The account whose tokens will be burnt.
     * @param value The amount that will be burnt.
     */
    function _burn(address account, uint256 value) internal {
        require(account != address(0));

        _totalSupply = _totalSupply.sub(value);
        _balances[account] = _balances[account].sub(value);
        emit Transfer(account, address(0), value);
    }

    /**
     * @dev Internal function that burns an amount of the token of a given
     * account, deducting from the sender's allowance for said account. Uses the
     * internal burn function.
     * Emits an Approval event (reflecting the reduced allowance).
     * @param account The account whose tokens will be burnt.
     * @param value The amount that will be burnt.
     */
    function _burnFrom(address account, uint256 value) internal {
        _allowed[account][msg.sender] = _allowed[account][msg.sender].sub(value);
        _burn(account, value);
        emit Approval(account, msg.sender, _allowed[account][msg.sender]);
    }
}



/**
 * @title Standard ERC20 token
 *
 * @notice Implementation of the basic standard token.
 *
 */
contract ServeToken is ERC20 {

        string public constant name = 'Serve';
        string public constant symbol = 'SERV';
        uint8 public constant decimals = 18;
        uint256 public constant initialSupply = 10000000000 * (10 ** uint256(decimals));

        /// @notice Constructor
        constructor(address _distribution) public {

                _mint(_distribution, initialSupply);
        }
}

Contract Security Audit

Contract ABI

[{"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":"","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":"initialSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","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":"spender","type":"address"},{"name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","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":true,"inputs":[{"name":"owner","type":"address"},{"name":"spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_distribution","type":"address"}],"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":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]

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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)

000000000000000000000000aeb825d1cba4983ba5d92e9dccdbda87e6cd2193

-----Decoded View---------------
Arg [0] : _distribution (address): 0xaEB825D1CbA4983ba5D92e9DccdBda87E6cD2193

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000aeb825d1cba4983ba5d92e9dccdbda87e6cd2193


Swarm Source

bzzr://cacbff1b84bede876aa4a4f45cb10a12ba7c1776d5a529a2b72cdd9106dac038
Loading...
Loading
[ Download: CSV Export  ]
[ Download: CSV Export  ]

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.