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ERC-20
Platform
Overview
Max Total Supply
10,000,000,000 UPT
Holders
1,434 (0.00%)
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:
UniversalProtocolToken
Compiler Version
v0.5.0+commit.1d4f565a
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2019-03-26 */ 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); } /** * @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 ERC20Detailed token * @dev The decimals are only for visualization purposes. * All the operations are done using the smallest and indivisible token unit, * just as on Ethereum all the operations are done in wei. */ contract ERC20Detailed is IERC20 { string private _name; string private _symbol; uint8 private _decimals; constructor (string memory name, string memory symbol, uint8 decimals) public { _name = name; _symbol = symbol; _decimals = decimals; } /** * @return the name of the token. */ function name() public view returns (string memory) { return _name; } /** * @return the symbol of the token. */ function symbol() public view returns (string memory) { return _symbol; } /** * @return the number of decimals of the token. */ function decimals() public view returns (uint8) { return _decimals; } } /** * @title UniversalProtocolToken */ contract UniversalProtocolToken is ERC20, ERC20Detailed { uint8 public constant DECIMALS = 18; uint256 public constant INITIAL_SUPPLY = (10 ** 10) * (10 ** uint256(DECIMALS)); /** * @dev Constructor that gives beneficiary all of existing tokens. */ constructor (address beneficiary) public ERC20Detailed("Universal Protocol Token", "UPT", DECIMALS) { _mint(beneficiary, INITIAL_SUPPLY); } }
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)
000000000000000000000000549650b6dbf1723fec37f0880ec777e8396e7c3e
-----Decoded View---------------
Arg [0] : beneficiary (address): 0x549650B6DBF1723fEC37F0880Ec777E8396e7c3E
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000549650b6dbf1723fec37f0880ec777e8396e7c3e
Swarm Source
bzzr://35747c9c0f4dc631ebb89bb9f04e7dcb1e5bb92daae1fe033ab72d46087683af
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