ETH Price: $3,707.63 (+3.10%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

724,130 ( 0.022%)

Market

Price

$19.32 @ 0.005211 ETH (+6.27%)

Onchain Market Cap

$19,320,000,000.00

Circulating Supply Market Cap

$12,121,404,851.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
306.52669 LINK

Value
$5,922.10 ( ~1.5973 Eth) [0.0000%]
0xfA7A537ea18C9AcA48a029FDC485a8Fc604Cc18f
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OVERVIEW

A blockchain-based middleware, acting as a bridge between cryptocurrency smart contracts, data feeds, APIs and traditional bank account payments.

Profitability / Loss

Since Initial Offer Price
:$0.11 17463.64% |ETH 0.0003846 1254.91%

Market

Volume (24H):$1,076,509,571.00
Market Capitalization:$12,121,404,851.00
Circulating Supply:626,849,971.00 LINK
Market Data Source: Coinmarketcap

ICO Information

ICO Start Date : Sep 19, 2017   
Total Cap : $32,000,000
ICO Price  : $0.11 | 0.0003846 ETH
Country : USA

# Exchange Pair Price  24H Volume % Volume
1
Binance
LINK-USDT$19.31
0.0052168 Eth
$92,757,098.00
4,992,931.390 LINK
16.8331%
2
Coinbase Exchange
LINK-USD$19.28
0.0052117 Eth
$53,449,139.00
2,772,977.360 LINK
9.3488%
3
WhiteBIT
LINK-USDT$19.29
0.0052154 Eth
$43,528,988.00
2,256,816.960 LINK
7.6086%
4
Bitget
LINK-USDT$19.34
0.0052256 Eth
$26,695,184.00
1,432,926.028 LINK
4.8309%
5
Bybit
LINK-USDT$19.28
0.0052122 Eth
$23,293,490.00
1,249,247.053 LINK
4.2117%
6
P2B
LINK-USDT$19.28
0.0052124 Eth
$19,761,450.00
1,024,942.810 LINK
3.4555%
7
Slex
LINK-USDT$19.32
0.0052208 Eth
$18,271,326.00
986,223.800 LINK
3.3249%
8
MEXC
LINK-USDT$19.29
0.0052140 Eth
$17,941,694.00
930,070.500 LINK
3.1356%
9
OKX
LINK-USDT$19.36
0.0052302 Eth
$17,106,496.00
919,614.983 LINK
3.1004%
10
BTSE
LINK-USDT$19.26
0.0052069 Eth
$16,731,892.00
868,560.660 LINK
2.9282%
11
Gate.io
LINK-USDT$19.30
0.0052173 Eth
$15,838,690.00
849,294.090 LINK
2.8633%
12
HTX
LINK-USDT$19.30
0.0052171 Eth
$14,512,885.00
784,249.421 LINK
2.6440%
13
DigiFinex
LINK-USDT$19.34
0.0052259 Eth
$12,836,735.00
663,732.050 LINK
2.2377%
14
Ourbit
LINK-USDT$19.28
0.0052143 Eth
$12,431,070.00
669,616.640 LINK
2.2575%
15
Bitunix
LINK-USDT$19.28
0.0052127 Eth
$12,378,116.00
641,896.870 LINK
2.1641%
16
XT.COM
LINK-USDT$19.36
0.0052350 Eth
$9,264,230.00
498,730.640 LINK
1.6814%
17
BVOX
LINK-USDT$19.28
0.0052124 Eth
$8,217,288.00
444,120.990 LINK
1.4973%
18
Coinstore
LINK-USDT$19.35
0.0052398 Eth
$8,089,738.00
435,617.270 LINK
1.4686%
19
CoinW
LINK-USDT$19.27
0.0052103 Eth
$8,009,822.00
415,589.750 LINK
1.4011%
20
Hotcoin
LINK-USDT$19.35
0.0052325 Eth
$7,980,969.00
412,490.150 LINK
1.3907%
21
Toobit
LINK-USDT$19.35
0.0052316 Eth
$7,416,713.00
399,117.480 LINK
1.3456%
22
Biconomy.com
LINK-USDT$19.34
0.0052262 Eth
$7,385,865.00
397,865.740 LINK
1.3414%
23
Azbit
LINK-USDT$19.32
0.0052298 Eth
$6,032,361.00
326,104.170 LINK
1.0994%
24
BYDFi
LINK-USDT$19.28
0.0052140 Eth
$5,274,536.00
273,523.720 LINK
0.9222%
25
Binance
LINK-FDUSD$19.35
0.0052307 Eth
$5,176,948.00
278,675.130 LINK
0.9395%
26
Bithumb
LINK-KRW$19.15
0.0051772 Eth
$4,789,594.00
250,055.014 LINK
0.8430%
27
Kraken
LINK-USD$19.28
0.0052129 Eth
$4,387,542.00
227,514.629 LINK
0.7670%
28
LATOKEN
LINK-USDT$19.30
0.0052178 Eth
$4,286,691.00
222,109.932 LINK
0.7488%
29
C-Patex
LINK-USDT$19.28
0.0052123 Eth
$4,182,890.00
216,924.304 LINK
0.7313%
30
KuCoin
LINK-USDT$19.33
0.0052237 Eth
$3,869,571.00
200,163.704 LINK
0.6748%
31
WhiteBIT
LINK-BTC$19.38
0.0052425 Eth
$3,737,170.00
192,788.810 LINK
0.6500%
32
ProBit Global
LINK-USDT$19.29
0.0052143 Eth
$3,677,884.00
190,684.054 LINK
0.6429%
33
Binance
LINK-USDC$19.30
0.0052165 Eth
$3,518,024.00
188,556.370 LINK
0.6357%
34
Dex-Trade
LINK-USDT$19.29
0.0052150 Eth
$3,132,903.00
162,415.990 LINK
0.5476%
35
Bitvavo
LINK-EUR$19.29
0.0052118 Eth
$2,845,337.00
147,502.864 LINK
0.4973%
36
CoinEx
LINK-USDT$19.28
0.0052125 Eth
$2,490,877.00
133,592.048 LINK
0.4504%
37
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$19.28
0.0052123 Eth
$2,312,079.00
122,747.396 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4138%
38
Dcoin
LINK-USDT$19.30
0.0052170 Eth
$2,181,758.00
113,046.000 LINK
0.3811%
39
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$19.41
0.0052473 Eth
$2,164,762.00
114,146.539 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3848%
40
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$19.28
0.0052125 Eth
$1,992,539.00
104,244.613 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.3514%
41
EXMO
LINK-USDT$19.29
0.0052156 Eth
$1,948,290.00
100,976.714 LINK
0.3404%
42
AscendEX (BitMax)
LINK-USDT$19.40
0.0052420 Eth
$1,868,490.00
96,316.100 LINK
0.3247%
43
Coinbase Exchange
LINK-EUR$19.26
0.0052073 Eth
$1,596,189.00
82,864.900 LINK
0.2794%
44
Trubit
LINK-USDT$19.28
0.0052136 Eth
$1,339,680.00
72,304.370 LINK
0.2438%
45
Kraken
LINK-USDT$19.29
0.0052146 Eth
$1,153,080.00
59,772.628 LINK
0.2015%
46
tanX
LINK-USDC$19.27
0.0052109 Eth
$1,126,851.00
61,093.400 LINK
0.2060%
47
Bitbank
LINK-JPY$19.32
0.0052200 Eth
$1,104,399.00
57,168.760 LINK
0.1927%
48
Phemex
LINK-USDT$19.30
0.0052163 Eth
$1,020,272.00
52,860.890 LINK
0.1782%
49
PointPay
LINK-USDT$19.35
0.0052343 Eth
$1,018,250.00
54,806.539 LINK
0.1848%
50
Tokpie
LINK-USDT$19.29
0.0052154 Eth
$1,011,711.00
52,436.514 LINK
0.1768%
51
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.31
0.0052196 Eth
$960,992.00
50,935.072 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1717%
52
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.30
0.0052159 Eth
$960,714.00
51,230.703 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1727%
53
itBit
LINK-USD$19.39
0.0052494 Eth
$951,487.00
49,071.040 LINK
0.1654%
54
WhiteBIT
LINK-TRY$19.32
0.0052225 Eth
$949,138.00
49,126.760 LINK
0.1656%
55
Bitstamp
LINK-USD$19.30
0.0052155 Eth
$935,532.00
48,473.138 LINK
0.1634%
56
ProBit Global
LINK-BTC$19.25
0.0052040 Eth
$876,542.00
45,530.841 LINK
0.1535%
57
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$19.30
0.0052175 Eth
$828,676.00
44,672.436 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1506%
58
EarnBIT
LINK-USDT$19.27
0.0052082 Eth
$827,472.00
44,549.791 LINK
0.1502%
59
Bitstamp
LINK-EUR$19.26
0.0052069 Eth
$815,907.00
42,357.190 LINK
0.1428%
60
LATOKEN
LINK-BTC$19.32
0.0052211 Eth
$790,787.00
40,921.768 LINK
0.1380%
61
BitStorage
LINK-USDT$19.38
0.0052480 Eth
$768,847.00
39,669.860 LINK
0.1337%
62
Gemini
LINK-USD$19.30
0.0052151 Eth
$696,500.00
36,088.067 LINK
0.1217%
63
Binance
LINK-EUR$19.35
0.0052323 Eth
$691,921.00
36,973.220 LINK
0.1247%
64
KickEX
LINK-USDT$19.29
0.0052143 Eth
$586,504.00
30,404.673 LINK
0.1025%
65
Binance
LINK-TRY$19.31
0.0052202 Eth
$565,088.00
30,304.940 LINK
0.1022%
66
Nonkyc.io
LINK-USDT$19.24
0.0051982 Eth
$536,052.00
28,908.901 LINK
0.0975%
67
WhiteBIT
LINK-EUR$19.41
0.0052548 Eth
$514,253.00
26,494.800 LINK
0.0893%
68
WEEX
LINK-USDC$19.33
0.0052270 Eth
$500,364.00
25,885.018 LINK
0.0873%
69
HashKey Exchange
LINK-USD$19.39
0.0052488 Eth
$478,625.00
25,827.806 LINK
0.0871%
70
Coinbase Exchange
LINK-GBP$19.24
0.0052007 Eth
$474,565.00
24,666.120 LINK
0.0832%
71
BigONE
LINK-USDT$19.26
0.0052085 Eth
$472,688.00
24,539.700 LINK
0.0827%
72
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$19.30
0.0052157 Eth
$439,819.00
23,712.235 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0799%
73
Hotcoin
LINK-BTC$19.39
0.0052499 Eth
$438,356.00
22,608.950 LINK
0.0762%
74
Bybit
LINK-USDC$19.30
0.0052174 Eth
$437,145.00
23,514.778 LINK
0.0793%
75
OKX
LINK-USDC$19.36
0.0052308 Eth
$435,932.00
23,632.455 LINK
0.0797%
76
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$19.28
0.0052121 Eth
$343,412.00
330,557.534 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.1144%
77
Coinbase Exchange
LINK-USDT$19.24
0.0051986 Eth
$339,681.00
17,655.847 LINK
0.0595%
78
Slex
LINK-ETH$19.30
0.0052180 Eth
$337,344.00
18,004.430 LINK
0.0607%
79
BitMart
LINK-BTC$19.29
0.0052146 Eth
$316,677.00
16,414.160 LINK
0.0553%
80
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$19.38
0.0052394 Eth
$272,302.00
14,731.074 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0497%
81
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$19.37
0.0052324 Eth
$269,147.00
14,482.719 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0488%
82
Hotcoin
LINK-ETH$19.32
0.0052200 Eth
$245,399.00
12,703.860 LINK
0.0428%
83
BitDelta
LINK-USDT$19.28
0.0052140 Eth
$232,062.00
12,536.000 LINK
0.0423%
84
Slex
LINK-BTC$19.29
0.0052162 Eth
$231,838.00
12,453.800 LINK
0.0420%
85
Bitcointry
LINK-USDT$19.26
0.0052072 Eth
$223,304.00
12,077.056 LINK
0.0407%
86
Coinbase Exchange
LINK-BTC$19.30
0.0052186 Eth
$200,808.00
10,402.310 LINK
0.0351%
87
Bitkub
LINK-THB$19.18
0.0051842 Eth
$189,486.00
9,881.162 LINK
0.0333%
88
BitStorage
LINK-ETH$19.31
0.0052183 Eth
$185,563.00
9,608.590 LINK
0.0324%
89
Bitso
LINK-USD$19.28
0.0052141 Eth
$174,311.00
9,039.623 LINK
0.0305%
90
Binance US
LINK-USDT$19.36
0.0052350 Eth
$168,023.00
8,679.329 LINK
0.0293%
91
Coinone
LINK-KRW$19.22
0.0051931 Eth
$164,788.00
8,574.383 LINK
0.0289%
92
PointPay
LINK-BTC$19.28
0.0052118 Eth
$157,464.00
8,446.340 LINK
0.0285%
93
Coinbase Exchange
LINK-ETH$19.32
0.0052207 Eth
$135,425.00
7,011.300 LINK
0.0236%
94
BitMart
LINK-ETH$19.30
0.0052168 Eth
$129,789.00
6,724.500 LINK
0.0227%
95
BYDFi
LINK-USDC$19.38
0.0052431 Eth
$124,508.00
6,423.950 LINK
0.0217%
96
Mercado Bitcoin
LINK-BRL$19.43
0.0052527 Eth
$119,218.00
6,135.197 LINK
0.0207%
97
KuCoin
LINK-USDC$19.37
0.0052328 Eth
$102,143.00
5,274.443 LINK
0.0178%
98
BTCMarkets
LINK-AUD$19.23
0.0052044 Eth
$81,179.00
4,221.237 LINK
0.0142%
99
Kraken
LINK-GBP$19.25
0.0052041 Eth
$75,690.00
3,931.493 LINK
0.0133%
100
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$19.32
0.0052238 Eth
$62,676.00
3,330.477 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0112%

Contract Source Code Verified (Exact Match)

Contract Name:
LinkToken

Compiler Version
v0.4.16+commit.d7661dd9

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, Audited

Contract Source Code (Solidity)Audit Report

/**
 *Submitted for verification at Etherscan.io on 2017-09-23
*/

pragma solidity ^0.4.16;


/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {
  function mul(uint256 a, uint256 b) internal constant returns (uint256) {
    uint256 c = a * b;
    assert(a == 0 || c / a == b);
    return c;
  }

  function div(uint256 a, uint256 b) internal constant returns (uint256) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return c;
  }

  function sub(uint256 a, uint256 b) internal constant returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  function add(uint256 a, uint256 b) internal constant returns (uint256) {
    uint256 c = a + b;
    assert(c >= a);
    return c;
  }
}


/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/179
 */
contract ERC20Basic {
  uint256 public totalSupply;
  function balanceOf(address who) constant returns (uint256);
  function transfer(address to, uint256 value) returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
}
/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) constant returns (uint256);
  function transferFrom(address from, address to, uint256 value) returns (bool);
  function approve(address spender, uint256 value) returns (bool);
  event Approval(address indexed owner, address indexed spender, uint256 value);
}

contract ERC677 is ERC20 {
  function transferAndCall(address to, uint value, bytes data) returns (bool success);

  event Transfer(address indexed from, address indexed to, uint value, bytes data);
}

contract ERC677Receiver {
  function onTokenTransfer(address _sender, uint _value, bytes _data);
}

/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances. 
 */
contract BasicToken is ERC20Basic {
  using SafeMath for uint256;

  mapping(address => uint256) balances;

  /**
  * @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) returns (bool) {
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
    return true;
  }

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

}


/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract StandardToken is ERC20, BasicToken {

  mapping (address => mapping (address => uint256)) allowed;


  /**
   * @dev Transfer tokens from one address to another
   * @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) returns (bool) {
    var _allowance = allowed[_from][msg.sender];

    // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
    // require (_value <= _allowance);

    balances[_from] = balances[_from].sub(_value);
    balances[_to] = balances[_to].add(_value);
    allowed[_from][msg.sender] = _allowance.sub(_value);
    Transfer(_from, _to, _value);
    return true;
  }

  /**
   * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
   * @param _spender The address which will spend the funds.
   * @param _value The amount of tokens to be spent.
   */
  function approve(address _spender, uint256 _value) returns (bool) {
    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
    return true;
  }

  /**
   * @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) constant returns (uint256 remaining) {
    return allowed[_owner][_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
   */
  function increaseApproval (address _spender, uint _addedValue) 
    returns (bool success) {
    allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

  function decreaseApproval (address _spender, uint _subtractedValue) 
    returns (bool success) {
    uint oldValue = allowed[msg.sender][_spender];
    if (_subtractedValue > oldValue) {
      allowed[msg.sender][_spender] = 0;
    } else {
      allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
    }
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

}

contract ERC677Token is ERC677 {

  /**
  * @dev transfer token to a contract address with additional data if the recipient is a contact.
  * @param _to The address to transfer to.
  * @param _value The amount to be transferred.
  * @param _data The extra data to be passed to the receiving contract.
  */
  function transferAndCall(address _to, uint _value, bytes _data)
    public
    returns (bool success)
  {
    super.transfer(_to, _value);
    Transfer(msg.sender, _to, _value, _data);
    if (isContract(_to)) {
      contractFallback(_to, _value, _data);
    }
    return true;
  }


  // PRIVATE

  function contractFallback(address _to, uint _value, bytes _data)
    private
  {
    ERC677Receiver receiver = ERC677Receiver(_to);
    receiver.onTokenTransfer(msg.sender, _value, _data);
  }

  function isContract(address _addr)
    private
    returns (bool hasCode)
  {
    uint length;
    assembly { length := extcodesize(_addr) }
    return length > 0;
  }

}

contract LinkToken is StandardToken, ERC677Token {

  uint public constant totalSupply = 10**27;
  string public constant name = 'ChainLink Token';
  uint8 public constant decimals = 18;
  string public constant symbol = 'LINK';

  function LinkToken()
    public
  {
    balances[msg.sender] = totalSupply;
  }

  /**
  * @dev transfer token to a specified address with additional data if the recipient is a contract.
  * @param _to The address to transfer to.
  * @param _value The amount to be transferred.
  * @param _data The extra data to be passed to the receiving contract.
  */
  function transferAndCall(address _to, uint _value, bytes _data)
    public
    validRecipient(_to)
    returns (bool success)
  {
    return super.transferAndCall(_to, _value, _data);
  }

  /**
  * @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, uint _value)
    public
    validRecipient(_to)
    returns (bool success)
  {
    return super.transfer(_to, _value);
  }

  /**
   * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
   * @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
    validRecipient(_spender)
    returns (bool)
  {
    return super.approve(_spender,  _value);
  }

  /**
   * @dev Transfer tokens from one address to another
   * @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
    validRecipient(_to)
    returns (bool)
  {
    return super.transferFrom(_from, _to, _value);
  }


  // MODIFIERS

  modifier validRecipient(address _recipient) {
    require(_recipient != address(0) && _recipient != address(this));
    _;
  }

}

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":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"transferAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","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":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","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"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"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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Swarm Source

bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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