ETH Price: $3,930.87 (+3.91%)

Token

ARPA Token (ARPA)
 

Overview

Max Total Supply

1,999,999,999.999999999999999778 ARPA

Holders

15,939 ( 0.013%)

Market

Price

$0.07 @ 0.000018 ETH (-2.22%)

Onchain Market Cap

$143,425,029.06

Circulating Supply Market Cap

$108,973,376.02

Other Info

Token Contract (WITH 18 Decimals)

Balance
0.428444768811605028 ARPA

Value
$0.03 ( ~7.63190015300955E-06 Eth) [0.0000%]
0x9bbe80104ab7d6f8bfe8f03f9907beeca64acf6a
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OVERVIEW

Cryptography- and blockchain-based privacy-preserving computation network.

Profitability / Loss

Since Initial Offer Price
:$0.02 258.56%

Market

Volume (24H):$39,859,074.66
Market Capitalization:$108,973,376.02
Circulating Supply:1,519,586,598.00 ARPA
Market Data Source: Coinmarketcap

ICO Information

ICO Start Date : Apr 25, 2019
ICO End Date : Apr 26, 2019
Raised : $8,000,000
ICO Price  : $0.02

# Exchange Pair Price  24H Volume % Volume
1
Binance
ARPA-USDT$0.0719
0.0000183 Eth
$10,929,893.00
151,232,791.900 ARPA
26.4505%
2
Hotcoin
ARPA-USDT$0.0719
0.0000183 Eth
$8,082,907.00
112,433,960.400 ARPA
19.6646%
3
XT.COM
ARPA-USDT$0.0717
0.0000182 Eth
$2,234,400.00
30,913,370.300 ARPA
5.4067%
4
Binance
ARPA-TRY$0.0722
0.0000183 Eth
$1,988,877.00
27,299,792.000 ARPA
4.7747%
5
BtcTurk | Kripto
ARPA-TRY$0.0723
0.0000183 Eth
$1,964,884.00
27,159,807.427 ARPA
4.7502%
6
Bitrue
ARPA-USDT$0.072
0.0000182 Eth
$1,931,008.00
26,825,197.100 ARPA
4.6917%
7
Dcoin
ARPA-USDT$0.072
0.0000183 Eth
$1,695,638.00
23,553,957.000 ARPA
4.1196%
8
WhiteBIT
ARPA-USDT$0.0721
0.0000183 Eth
$1,396,735.00
19,367,682.110 ARPA
3.3874%
9
Trubit
ARPA-USDT$0.0719
0.0000182 Eth
$1,255,946.00
17,410,166.000 ARPA
3.0450%
10
Toobit
ARPA-USDT$0.0719
0.0000182 Eth
$1,086,472.00
15,040,775.900 ARPA
2.6306%
11
LBank
ARPA-USDT$0.072
0.0000183 Eth
$1,025,605.00
14,238,875.000 ARPA
2.4904%
12
Coinbase Exchange
ARPA-USD$0.0721
0.0000183 Eth
$889,120.00
12,331,756.800 ARPA
2.1568%
13
KuCoin
ARPA-USDT$0.072
0.0000182 Eth
$671,252.00
9,322,716.591 ARPA
1.6305%
14
BitMart
ARPA-USDT$0.072
0.0000182 Eth
$638,417.00
8,870,209.000 ARPA
1.5514%
15
FameEX
ARPA-USDT$0.0721
0.0000183 Eth
$515,917.00
7,140,544.587 ARPA
1.2489%
16
BtcTurk | Kripto
ARPA-USDT$0.0718
0.0000182 Eth
$490,294.00
6,826,690.044 ARPA
1.1940%
17
Bitget
ARPA-USDT$0.0722
0.0000183 Eth
$477,177.00
6,606,238.100 ARPA
1.1554%
18
Ourbit
ARPA-USDT$0.072
0.0000183 Eth
$417,200.00
5,773,283.900 ARPA
1.0097%
19
CoinTR
ARPA-USDT$0.0717
0.0000183 Eth
$393,379.00
5,477,550.800 ARPA
0.9580%
20
WEEX
ARPA-USDT$0.0725
0.0000185 Eth
$379,189.00
5,258,519.000 ARPA
0.9197%
21
Gate.io
ARPA-USDT$0.0719
0.0000182 Eth
$316,237.00
4,367,252.930 ARPA
0.7638%
22
Bithumb
ARPA-KRW$0.0707
0.0000179 Eth
$304,712.00
4,311,269.369 ARPA
0.7540%
23
HTX
ARPA-USDT$0.072
0.0000182 Eth
$289,066.00
4,009,591.825 ARPA
0.7013%
24
Binance
ARPA-BTC$0.0721
0.0000184 Eth
$256,616.00
3,419,794.000 ARPA
0.5981%
25
MEXC
ARPA-USDT$0.072
0.0000182 Eth
$230,166.00
3,194,969.490 ARPA
0.5588%
26
Hibt
ARPA-USDT$0.072
0.0000182 Eth
$217,041.00
3,004,475.540 ARPA
0.5255%
27
Upbit Indonesia
ARPA-BTC$0.0723
0.0000184 Eth
$212,087.00
2,933,025.808 ARPA
0.5130%
28
Upbit
ARPA-BTC$0.0725
0.0000184 Eth
$211,389.00
2,917,075.448 ARPA
0.5102%
29
BingX
ARPA-USDT$0.0722
0.0000183 Eth
$195,654.00
2,700,421.274 ARPA
0.4723%
30
Bitvavo
ARPA-EUR$0.0721
0.0000183 Eth
$149,460.00
2,072,725.887 ARPA
0.3625%
31
CoinTR
ARPA-TRY$0.072
0.0000184 Eth
$130,658.00
1,807,863.000 ARPA
0.3162%
32
CoinCatch
ARPA-USDT$0.072
0.0000182 Eth
$123,819.00
1,716,339.000 ARPA
0.3002%
33
DeGate
0XBA50933C268F567BDC86E1AC131BE072C6B0B71A-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$0.072
0.0000182 Eth
$123,769.00
1,715,891.400 0XBA50933C268F567BDC86E1AC131BE072C6B0B71A
0.3001%
34
Icrypex
ARPA-USDT$0.0716
0.0000182 Eth
$102,840.00
1,436,888.609 ARPA
0.2513%
35
Pionex
ARPA-USDT$0.0717
0.0000183 Eth
$76,194.00
1,053,998.240 ARPA
0.1843%
36
LATOKEN
ARPA-USDT$0.0715
0.0000182 Eth
$45,319.00
633,699.618 ARPA
0.1108%
37
Tapbit
ARPA-USDT$0.062
0.0000171 Eth
$29,245.00
457,146.500 ARPA
0.0800%
38
BloFin
ARPA-USDT$0.0718
0.0000182 Eth
$25,876.00
359,125.700 ARPA
0.0628%
39
Kraken
ARPA-USD$0.0725
0.0000183 Eth
$15,969.38
220,358.488 ARPA
0.0385%
40
CoinEx
ARPA-USDT$0.0715
0.0000182 Eth
$12,384.40
172,223.570 ARPA
0.0301%
41
Crypto.com Exchange
ARPA-USD$0.071
0.0000180 Eth
$10,642.10
149,950.000 ARPA
0.0262%
42
TokoCrypto
ARPA-USDT$0.072
0.0000183 Eth
$10,594.86
147,084.988 ARPA
0.0257%
43
PancakeSwap (v2)
0X6F769E65C14EBD1F68817F5F1DCDB61CFA2D6F7E-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$0.0719
0.0000182 Eth
$9,244.86
129,896.149 0X6F769E65C14EBD1F68817F5F1DCDB61CFA2D6F7E
0.0227%
44
Tothemoon
ARPA-USDT$0.0722
0.0000183 Eth
$6,486.12
89,795.100 ARPA
0.0157%
45
PancakeSwap V1 (BSC)
0X6F769E65C14EBD1F68817F5F1DCDB61CFA2D6F7E-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$0.0717
0.0000182 Eth
$2,684.75
37,248.104 0X6F769E65C14EBD1F68817F5F1DCDB61CFA2D6F7E
0.0065%
46
Kraken
ARPA-EUR$0.0725
0.0000184 Eth
$2,476.26
34,134.435 ARPA
0.0060%
47
Mudrex
ARPA-USDT$0.0719
0.0000182 Eth
$1,997.53
27,770.697 ARPA
0.0049%
48
Uniswap V3 (Polygon)
0XEE800B277A96B0F490A1A732E1D6395FAD960A26-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$0.074
0.0000187 Eth
$781.92
11,827.085 0XEE800B277A96B0F490A1A732E1D6395FAD960A26
0.0021%
49
Bittime
ARPA-IDR$0.0721
0.0000184 Eth
$652.84
9,017.000 ARPA
0.0016%
50
Upbit Indonesia
ARPA-USDT$0.0705
0.0000178 Eth
$552.73
7,839.334 ARPA
0.0014%
51
Coinone
ARPA-KRW$0.0736
0.0000187 Eth
$490.85
6,664.894 ARPA
0.0012%
52
Uniswap V3 (Ethereum)
0XBA50933C268F567BDC86E1AC131BE072C6B0B71A-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$0.0891
0.0000226 Eth
$462.49
5,066.516 0XBA50933C268F567BDC86E1AC131BE072C6B0B71A
0.0009%
53
Upbit
ARPA-USDT$0.0705
0.0000178 Eth
$340.43
4,828.301 ARPA
0.0008%
54
HonorSwap
0X6F769E65C14EBD1F68817F5F1DCDB61CFA2D6F7E-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$0.0717
0.0000183 Eth
$313.14
4,064.227 0X6F769E65C14EBD1F68817F5F1DCDB61CFA2D6F7E
0.0007%
55
Nominex
ARPA-USDT$0.0736
0.0000190 Eth
$277.49
3,770.958 ARPA
0.0007%
56
Sushiswap (Polygon POS)
0XEE800B277A96B0F490A1A732E1D6395FAD960A26-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$0.0739
0.0000188 Eth
$228.34
3,424.780 0XEE800B277A96B0F490A1A732E1D6395FAD960A26
0.0006%
57
Nominex
ARPA-TRY$0.0733
0.0000198 Eth
$65.39
892.283 ARPA
0.0002%
58
TokoCrypto
ARPA-BTC$0.0664
0.0000185 Eth
$13.77
207.543 ARPA
0.0000%
59
Gate.io
ARPA-ETH$0.0728
0.0000184 Eth
$7.71
105.980 ARPA
0.0000%
60
FMFW.io
ARPA-USDT$0.0753
0.0000195 Eth
$7.53
100.000 ARPA
0.0000%
61
HitBTC
ARPA-USDT$0.0753
0.0000195 Eth
$7.53
100.000 ARPA
0.0000%
62
FMFW.io
ARPA-BTC$0.0572
0.0000155 Eth
$0.5721
10.000 ARPA
0.0000%
63
HitBTC
ARPA-BTC$0.0572
0.0000155 Eth
$0.5721
10.000 ARPA
0.0000%

Contract Source Code Verified (Exact Match)

Contract Name:
ARPAToken

Compiler Version
v0.5.4+commit.9549d8ff

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2019-04-22
*/

pragma solidity 0.5.4;

/**
 * @title ERC20 interface
 * @dev see https://eips.ethereum.org/EIPS/eip-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 Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * https://eips.ethereum.org/EIPS/eip-20
 * 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) internal _balances;

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

    uint256 internal _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 A 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 to 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) {
        _approve(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) {
        _transfer(from, to, value);
        _approve(from, msg.sender, _allowed[from][msg.sender].sub(value));
        return true;
    }

    /**
     * @dev Increase the amount of tokens that an owner allowed to a spender.
     * approve should be called when _allowed[msg.sender][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) {
        _approve(msg.sender, spender, _allowed[msg.sender][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Decrease the amount of tokens that an owner allowed to a spender.
     * approve should be called when _allowed[msg.sender][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) {
        _approve(msg.sender, spender, _allowed[msg.sender][spender].sub(subtractedValue));
        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 Approve an address to spend another addresses' tokens.
     * @param owner The address that owns the tokens.
     * @param spender The address that will spend the tokens.
     * @param value The number of tokens that can be spent.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        require(spender != address(0));
        require(owner != address(0));

        _allowed[owner][spender] = value;
        emit Approval(owner, spender, 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 {
        _burn(account, value);
        _approve(account, msg.sender, _allowed[account][msg.sender].sub(value));
    }
}

/**
 * @title Ownable
 * @dev The Ownable contract has an owner address, and provides basic authorization control
 * functions, this simplifies the implementation of "user permissions".
 */
contract Ownable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev The Ownable constructor sets the original `owner` of the contract to the a
     * specified account.
     * @param initalOwner The address of the inital owner.
     */
    constructor (address initalOwner) internal {
        _owner = initalOwner;
        emit OwnershipTransferred(address(0), _owner);
    }

    /**
     * @return the address of the owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(isOwner());
        _;
    }

    /**
     * @return true if `msg.sender` is the owner of the contract.
     */
    function isOwner() public view returns (bool) {
        return msg.sender == _owner;
    }

    /**
     * @dev Allows the current owner to relinquish control of the contract.
     * It will not be possible to call the functions with the `onlyOwner`
     * modifier anymore.
     * @notice Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Allows the current owner to transfer control of the contract to a newOwner.
     * @param newOwner The address to transfer ownership to.
     */
    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers control of the contract to a newOwner.
     * @param newOwner The address to transfer ownership to.
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0));
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

/**
 * @title ARPAToken
 * @dev ARPA is an ownable, mintable, pausable and burnable ERC20 token
 */
contract ARPAToken is ERC20, Ownable {
    using SafeMath for uint;

    string public constant name = "ARPA Token";
    uint8 public constant decimals = 18;
    string public constant symbol = "ARPA";
    uint public constant maxSupply = 2 * 10**9 * 10**uint(decimals); // 2 billion
    uint public constant initalSupply = 14 * 10**8 * 10**uint(decimals); // 1.4 billion
    
    bool public paused; // True when circulation is paused.

    mapping (address => bool) public minter;

    /**
     * @dev Throws if called by any account that is not a minter.
     */
    modifier onlyMinter() {
        require(minter[msg.sender]);
        _;
    }

    /**
     * @dev Throws if called when the circulation is paused.
     */
    modifier whenNotPaused() {
        require(paused == false);
        _;
    }

    /**
     * @dev The ARPAToken constructor sets the original manager of the contract to the a
     * specified account, and send all the inital supply to it.
     * @param manager The address of the first manager of this contract.
     */
    constructor(address manager) public Ownable(manager) {
        _balances[manager] = initalSupply;
        _totalSupply = initalSupply;
    }

    /**
     * @dev Add an address to the minter list.
     * @param minterAddress The address to be added as a minter.
     */
    function addMinter(address minterAddress) public onlyOwner {
        minter[minterAddress] = true;
    }

    /**
     * @dev Remove an address from the minter list.
     * @param minterAddress The address to be removed from minters.
     */
    function removeMinter(address minterAddress) public onlyOwner {
        minter[minterAddress] = false;
    }

    /**
     * @dev Function to mint tokens by a minter
     * @param to The address that will receive the minted tokens.
     * @param value The amount of tokens to mint.
     * @return A boolean that indicates if the operation was successful.
     * @notice 30% of the ARPA token are issued by the mining process.
     */
    function mint(address to, uint value) public onlyMinter returns (bool) {
        require(_totalSupply.add(value) <= maxSupply);
        _mint(to, value);
        return true;
    }

    /**
     * @dev Function to pause all the circulation in the case of emergency.
     */
    function pause() public onlyOwner {
        paused = true;
    }

    /**
     * @dev Function to recover all the circulation from emergency.
     */
    function unpause() public onlyOwner {
        paused = false;
    }

    /**
     * @dev Burns a specific amount of tokens.
     * @param value The amount of token to be burned.
     */
    function burn(uint256 value) public {
        _burn(msg.sender, value);
    }

    /**
     * @dev Burns a specific amount of tokens from the target address and decrements allowance.
     * @param from address The account whose tokens will be burned.
     * @param value uint256 The amount of token to be burned.
     */
    function burnFrom(address from, uint256 value) public {
        _burnFrom(from, value);
    }

    function transfer(address to, uint256 value) public whenNotPaused returns (bool) {
        return super.transfer(to, value);
    }

    function transferFrom(address from, address to, uint256 value) public whenNotPaused returns (bool) {
        return super.transferFrom(from, to, value);
    }

    function approve(address spender, uint256 value) public whenNotPaused returns (bool) {
        return super.approve(spender, value);
    }

    function increaseAllowance(address spender, uint addedValue) public whenNotPaused returns (bool) {
        return super.increaseAllowance(spender, addedValue);
    }

    function decreaseAllowance(address spender, uint subtractedValue) public whenNotPaused returns (bool) {
        return super.decreaseAllowance(spender, subtractedValue);
    }

}

/**
 * @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;
    }
}

Contract Security Audit

Contract ABI

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ansfer","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)

000000000000000000000000b29306da849201c350cefaa4cfd891f80d23bdba

-----Decoded View---------------
Arg [0] : manager (address): 0xB29306da849201C350CEfAa4cFd891F80d23bDba

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000b29306da849201c350cefaa4cfd891f80d23bdba


Swarm Source

bzzr://5eafaecbfa042d1cb9ed16ea1338bbdc069be6470e748462697593dc5208a451
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