ETH Price: $3,136.23 (-5.27%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

731,132 ( 0.025%)

Market

Price

$23.43 @ 0.007471 ETH (-7.19%)

Onchain Market Cap

$23,430,000,000.00

Circulating Supply Market Cap

$14,949,222,362.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
27.86406845 LINK

Value
$652.86 ( ~0.208167236743074 Eth) [0.0000%]
0x4b3cfA1d0875338d368748CE8cEa11fE9C84cF66
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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 21200% |ETH 0.0003846 1842.54%

Market

Volume (24H):$1,472,306,114.00
Market Capitalization:$14,949,222,362.00
Circulating Supply:638,099,970.00 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
Coinbase Exchange
LINK-USD$23.67
0.0075718 Eth
$95,916,568.00
4,051,557.300 LINK
12.7984%
2
Bybit
LINK-USDT$23.86
0.0075814 Eth
$70,380,874.00
2,934,380.153 LINK
9.2693%
3
P2B
LINK-USDT$23.91
0.0075979 Eth
$37,234,606.00
1,557,318.410 LINK
4.9194%
4
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.71
0.0075326 Eth
$32,584,297.00
1,380,794.939 0X514910771AF9CA656AF840DFF83E8264ECF986CA
4.3618%
5
Gate.io
LINK-USDT$23.83
0.0075730 Eth
$30,154,423.00
1,266,696.860 LINK
4.0013%
6
OKX
LINK-USDT$23.90
0.0075949 Eth
$29,293,690.00
1,225,078.604 LINK
3.8699%
7
DigiFinex
LINK-USDT$23.91
0.0075969 Eth
$27,431,499.00
1,147,314.280 LINK
3.6242%
8
Slex
LINK-USDT$23.54
0.0075304 Eth
$23,663,767.00
973,573.900 LINK
3.0754%
9
MEXC
LINK-USDT$23.53
0.0075311 Eth
$23,359,193.00
992,823.920 LINK
3.1362%
10
Azbit
LINK-USDT$23.49
0.0075243 Eth
$21,488,625.00
900,927.977 LINK
2.8459%
11
XT.COM
LINK-USDT$23.17
0.0074642 Eth
$20,985,318.00
878,365.770 LINK
2.7746%
12
KuCoin
LINK-USDT$23.88
0.0075925 Eth
$20,006,291.00
837,780.207 LINK
2.6464%
13
Coinstore
LINK-USDT$23.53
0.0075329 Eth
$17,730,706.00
741,114.600 LINK
2.3411%
14
Bitunix
LINK-USDT$23.96
0.0076286 Eth
$17,408,819.00
726,479.340 LINK
2.2949%
15
Binance
LINK-FDUSD$23.51
0.0075492 Eth
$17,381,187.00
718,817.520 LINK
2.2707%
16
HTX
LINK-USDT$23.91
0.0076031 Eth
$16,076,729.00
669,368.933 LINK
2.1145%
17
Kraken
LINK-USD$23.79
0.0075647 Eth
$15,742,597.00
661,652.970 LINK
2.0901%
18
Binance
LINK-USDC$23.90
0.0075929 Eth
$15,213,761.00
636,674.430 LINK
2.0112%
19
WhiteBIT
LINK-USDT$23.55
0.0075420 Eth
$13,197,980.00
560,429.820 LINK
1.7703%
20
BYDFi
LINK-USDT$23.13
0.0074513 Eth
$11,432,228.00
494,216.480 LINK
1.5612%
21
LATOKEN
LINK-USDT$23.60
0.0075467 Eth
$10,611,975.00
449,719.646 LINK
1.4206%
22
LBank
LINK-USDT$23.60
0.0075479 Eth
$10,504,813.00
445,109.180 LINK
1.4060%
23
Hotcoin
LINK-USDT$23.88
0.0076010 Eth
$9,661,029.00
404,575.450 LINK
1.2780%
24
Bitget
LINK-USDT$23.92
0.0075994 Eth
$9,396,206.00
394,241.675 LINK
1.2454%
25
QMall
LINK-USDT$23.87
0.0075973 Eth
$9,031,609.00
378,646.095 LINK
1.1961%
26
BTSE
LINK-USDT$23.63
0.0075576 Eth
$8,621,268.00
364,901.236 LINK
1.1527%
27
Coinbase Exchange
LINK-EUR$23.88
0.0076254 Eth
$8,310,697.00
348,030.540 LINK
1.0994%
28
Bitvavo
LINK-EUR$23.62
0.0075645 Eth
$7,188,481.00
304,373.382 LINK
0.9615%
29
Dex-Trade
LINK-USDT$23.69
0.0075771 Eth
$6,560,652.00
276,931.361 LINK
0.8748%
30
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.65
0.0075143 Eth
$5,534,541.00
234,378.874 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.7404%
31
FMCPAY
LINK-USDT$23.87
0.0076014 Eth
$5,511,608.00
226,310.844 LINK
0.7149%
32
CoinEx
LINK-USDT$23.46
0.0075088 Eth
$4,578,448.00
189,412.016 LINK
0.5983%
33
Bitstamp
LINK-USD$23.92
0.0076003 Eth
$3,775,451.00
157,836.594 LINK
0.4986%
34
Coinbase Exchange
LINK-GBP$23.84
0.0075903 Eth
$3,731,088.00
156,520.010 LINK
0.4944%
35
PointPay
LINK-USDT$23.55
0.0075425 Eth
$3,430,032.00
143,268.877 LINK
0.4526%
36
Biconomy.com
LINK-USDT$23.56
0.0075428 Eth
$3,412,003.00
141,848.990 LINK
0.4481%
37
WhiteBIT
LINK-BTC$23.54
0.0075388 Eth
$2,843,065.00
120,778.430 LINK
0.3815%
38
WhiteBIT
LINK-TRY$23.63
0.0075683 Eth
$2,639,653.00
111,699.600 LINK
0.3528%
39
Bitbank
LINK-JPY$23.75
0.0075991 Eth
$2,567,968.00
108,103.938 LINK
0.3415%
40
Binance
LINK-ETH$23.36
0.0075127 Eth
$2,546,290.00
107,812.800 LINK
0.3406%
41
Kraken
LINK-USDT$23.97
0.0076187 Eth
$2,485,475.00
103,670.021 LINK
0.3275%
42
Kraken
LINK-EUR$23.87
0.0075877 Eth
$2,412,228.00
101,076.965 LINK
0.3193%
43
Phemex
LINK-USDT$23.75
0.0075970 Eth
$2,116,865.00
89,133.240 LINK
0.2816%
44
FMCPAY
LINK-BTC$23.53
0.0075366 Eth
$1,882,672.00
78,216.500 LINK
0.2471%
45
BigONE
LINK-USDT$23.93
0.0076172 Eth
$1,876,199.00
78,402.570 LINK
0.2477%
46
FMCPAY
LINK-ETH$23.53
0.0075359 Eth
$1,836,029.00
77,528.000 LINK
0.2449%
47
BitStorage
LINK-USDT$23.59
0.0075451 Eth
$1,654,125.00
70,118.170 LINK
0.2215%
48
WhiteBIT
LINK-EUR$23.52
0.0075311 Eth
$1,588,729.00
67,560.730 LINK
0.2134%
49
OKX
LINK-USDC$23.93
0.0076027 Eth
$1,550,880.00
63,429.040 LINK
0.2004%
50
EarnBIT
LINK-USDT$23.61
0.0075523 Eth
$1,404,403.00
58,580.657 LINK
0.1850%
51
Binance
LINK-TRY$23.58
0.0075486 Eth
$1,383,315.00
56,950.940 LINK
0.1799%
52
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.51
0.0075078 Eth
$1,373,333.00
58,251.709 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1840%
53
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.62
0.0075185 Eth
$1,344,732.00
56,211.398 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1776%
54
GMO Japan
LINK-JPY$23.59
0.0075335 Eth
$1,313,428.00
55,674.000 LINK
0.1759%
55
Binance
LINK-EUR$23.98
0.0076196 Eth
$1,310,439.00
54,427.720 LINK
0.1719%
56
EXMO
LINK-USDT$23.95
0.0076110 Eth
$1,300,956.00
54,317.882 LINK
0.1716%
57
tanX
LINK-USDC$23.98
0.0076343 Eth
$1,275,688.00
52,139.280 LINK
0.1647%
58
Bybit
LINK-USDC$23.91
0.0075973 Eth
$1,273,616.00
53,269.711 LINK
0.1683%
59
Gemini
LINK-USD$23.93
0.0076028 Eth
$1,224,604.00
51,178.634 LINK
0.1617%
60
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$23.61
0.0075152 Eth
$1,207,724.00
50,059.414 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1581%
61
QMall
LINK-USDC$23.81
0.0075783 Eth
$1,174,429.00
49,145.589 LINK
0.1552%
62
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.56
0.0075011 Eth
$1,165,132.00
49,463.486 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1562%
63
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.40
0.0074481 Eth
$1,040,070.00
44,331.722 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1400%
64
Nonkyc.io
LINK-USDT$23.59
0.0075453 Eth
$991,378.00
42,158.037 LINK
0.1332%
65
Trubit
LINK-USDT$23.53
0.0075306 Eth
$971,270.00
40,300.060 LINK
0.1273%
66
HashKey Exchange
LINK-USD$23.60
0.0075155 Eth
$933,378.00
38,781.248 LINK
0.1225%
67
Coinbase Exchange
LINK-USDT$23.55
0.0075319 Eth
$887,961.00
37,704.515 LINK
0.1191%
68
itBit
LINK-USD$23.94
0.0076115 Eth
$874,236.00
36,517.802 LINK
0.1154%
69
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.65
0.0075515 Eth
$824,336.00
841,420.586 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.6579%
70
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.51
0.0075207 Eth
$795,203.00
33,440.386 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1056%
71
XT.COM
LINK-ETH$23.86
0.0075946 Eth
$735,506.00
30,879.360 LINK
0.0975%
72
LATOKEN
LINK-BTC$23.42
0.0075156 Eth
$710,623.00
30,343.162 LINK
0.0959%
73
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.65
0.0075521 Eth
$580,750.00
24,446.438 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0772%
74
BitStorage
LINK-ETH$23.25
0.0074977 Eth
$569,318.00
24,484.870 LINK
0.0773%
75
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.65
0.0075515 Eth
$544,866.00
22,626.484 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0715%
76
Coinbase Exchange
LINK-BTC$23.84
0.0075872 Eth
$528,853.00
22,186.910 LINK
0.0701%
77
Coinbase Exchange
LINK-ETH$23.74
0.0075806 Eth
$517,475.00
21,798.590 LINK
0.0689%
78
Slex
LINK-ETH$23.53
0.0075269 Eth
$433,368.00
18,280.500 LINK
0.0577%
79
Binance
LINK-BNB$23.88
0.0075863 Eth
$407,407.00
16,469.467 LINK
0.0520%
80
bitcastle
LINK-USDT$23.72
0.0075521 Eth
$402,371.00
16,839.400 LINK
0.0532%
81
BitDelta
LINK-USDT$23.86
0.0075950 Eth
$396,227.00
16,513.000 LINK
0.0522%
82
Slex
LINK-BTC$23.54
0.0075294 Eth
$392,835.00
16,357.700 LINK
0.0517%
83
KuCoin
LINK-USDC$23.90
0.0075978 Eth
$381,442.00
15,962.021 LINK
0.0504%
84
Hotcoin
LINK-BTC$23.59
0.0075456 Eth
$381,245.00
16,159.830 LINK
0.0510%
85
Kraken
LINK-GBP$23.83
0.0075728 Eth
$364,851.00
15,310.357 LINK
0.0484%
86
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$24.03
0.0076405 Eth
$351,063.00
14,347.491 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0453%
87
BYDFi
LINK-USDC$23.53
0.0075264 Eth
$316,676.00
13,457.200 LINK
0.0425%
88
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.83
0.0075716 Eth
$304,054.00
12,583.165 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0397%
89
Bitkub
LINK-THB$23.72
0.0075747 Eth
$293,673.00
12,380.547 LINK
0.0391%
90
Mercado Bitcoin
LINK-BRL$23.98
0.0076325 Eth
$290,023.00
12,095.178 LINK
0.0382%
91
BitMart
LINK-BTC$23.89
0.0075900 Eth
$284,093.00
11,892.920 LINK
0.0376%
92
PointPay
LINK-BTC$23.15
0.0074655 Eth
$263,648.00
11,038.157 LINK
0.0349%
93
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$23.52
0.0074877 Eth
$251,207.00
10,622.846 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0336%
94
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$23.62
0.0075185 Eth
$237,321.00
241,324.016 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.7623%
95
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.48
0.0074989 Eth
$205,918.00
8,690.530 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0275%
96
Kraken
LINK-ETH$23.91
0.0076035 Eth
$203,043.00
8,490.244 LINK
0.0268%
97
Bitso
LINK-USD$23.75
0.0075598 Eth
$181,377.00
7,636.925 LINK
0.0241%
98
Sushiswap
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.60
0.0075123 Eth
$176,977.00
7,497.097 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0237%
99
Binance US
LINK-USDT$23.77
0.0075901 Eth
$176,107.00
7,409.262 LINK
0.0234%
100
Foxbit
LINK-BRL$23.60
0.0075545 Eth
$129,064.00
5,403.767 LINK
0.0171%

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

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Deployed Bytecode

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Swarm Source

bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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