ETH Price: $2,652.23 (-5.50%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

739,172 ( 0.029%)

Market

Price

$16.08 @ 0.006063 ETH (-8.29%)

Onchain Market Cap

$16,080,000,000.00

Circulating Supply Market Cap

$10,268,698,838.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
45.52385955 LINK

Value
$732.02 ( ~0.276001511666746 Eth) [0.0000%]
0x0d3ef122ab6349120076f892524d16cccd7ceec4
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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 14518.18% |ETH 0.0003846 1476.44%

Market

Volume (24H):$573,630,424.00
Market Capitalization:$10,268,698,838.00
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
Binance
LINK-USDT$16.16
0.0061258 Eth
$62,449,828.00
3,749,579.260 LINK
17.9456%
2
WhiteBIT
LINK-USDT$16.14
0.0061129 Eth
$56,040,689.00
3,472,060.060 LINK
16.6174%
3
Coinbase Exchange
LINK-USD$16.19
0.0061286 Eth
$22,141,357.00
1,368,017.120 LINK
6.5474%
4
HTX
LINK-USDT$16.19
0.0061162 Eth
$14,482,326.00
862,098.248 LINK
4.1260%
5
Gate.io
LINK-USDT$16.18
0.0061123 Eth
$13,717,389.00
831,549.540 LINK
3.9798%
6
Bybit
LINK-USDT$16.20
0.0061120 Eth
$12,325,886.00
737,296.197 LINK
3.5287%
7
P2B
LINK-USDT$16.13
0.0061086 Eth
$12,199,911.00
756,392.930 LINK
3.6201%
8
KuCoin
LINK-USDT$16.19
0.0061079 Eth
$10,267,040.00
634,164.195 LINK
3.0351%
9
Bitget
LINK-USDT$16.19
0.0061067 Eth
$8,589,653.00
514,105.435 LINK
2.4605%
10
DigiFinex
LINK-USDT$16.19
0.0061073 Eth
$7,578,394.00
468,138.040 LINK
2.2405%
11
OKX
LINK-USDT$16.18
0.0061109 Eth
$7,527,836.00
453,404.341 LINK
2.1700%
12
Binance
LINK-FDUSD$16.11
0.0061052 Eth
$6,757,567.00
405,521.260 LINK
1.9408%
13
XT.COM
LINK-USDT$16.19
0.0061301 Eth
$6,238,635.00
375,140.410 LINK
1.7954%
14
MEXC
LINK-EUR$16.12
0.0061137 Eth
$5,955,589.00
369,405.960 LINK
1.7680%
15
MEXC
LINK-USDC$16.05
0.0060858 Eth
$5,725,530.00
356,772.520 LINK
1.7075%
16
Hotcoin
LINK-USDT$16.19
0.0061284 Eth
$5,481,467.00
338,608.600 LINK
1.6206%
17
LBank
LINK-USDT$16.20
0.0061105 Eth
$5,350,611.00
330,350.310 LINK
1.5811%
18
Coinstore
LINK-USDT$16.14
0.0061106 Eth
$5,269,432.00
316,652.980 LINK
1.5155%
19
Binance
LINK-USDC$16.19
0.0061075 Eth
$5,250,835.00
315,116.080 LINK
1.5082%
20
CoinW
LINK-USDT$16.18
0.0061037 Eth
$4,669,302.00
288,608.510 LINK
1.3813%
21
Kraken
LINK-USD$16.17
0.0060999 Eth
$3,773,352.00
233,374.579 LINK
1.1169%
22
Azbit
LINK-USDT$16.08
0.0060951 Eth
$3,757,940.00
225,895.959 LINK
1.0811%
23
Bitunix
LINK-USDT$16.16
0.0061174 Eth
$3,607,079.00
223,205.010 LINK
1.0683%
24
BYDFi
LINK-USDT$16.10
0.0060990 Eth
$3,378,258.00
209,834.630 LINK
1.0043%
25
LATOKEN
LINK-USDT$15.99
0.0060723 Eth
$2,880,084.00
180,112.543 LINK
0.8620%
26
BTSE
LINK-USDT$16.16
0.0061049 Eth
$2,752,909.00
170,359.286 LINK
0.8153%
27
QMall
LINK-USDT$16.04
0.0060899 Eth
$2,561,600.00
153,890.947 LINK
0.7365%
28
Bitvavo
LINK-EUR$16.13
0.0061219 Eth
$2,298,540.00
142,469.199 LINK
0.6819%
29
FMCPAY
LINK-USDT$16.11
0.0061063 Eth
$2,229,094.00
132,805.715 LINK
0.6356%
30
Dex-Trade
LINK-USDT$16.15
0.0061064 Eth
$1,961,898.00
121,509.336 LINK
0.5815%
31
CoinEx
LINK-USDT$16.13
0.0061105 Eth
$1,523,547.00
91,830.954 LINK
0.4395%
32
Biconomy.com
LINK-USDT$16.10
0.0061091 Eth
$1,340,922.00
80,030.740 LINK
0.3830%
33
Coinbase Exchange
LINK-EUR$16.16
0.0061120 Eth
$1,331,087.00
82,364.340 LINK
0.3942%
34
Binance
LINK-ETH$16.11
0.0061032 Eth
$1,093,400.00
67,126.160 LINK
0.3213%
35
Coinbase Exchange
LINK-GBP$16.17
0.0061229 Eth
$1,058,197.00
65,441.730 LINK
0.3132%
36
FMCPAY
LINK-ETH$16.17
0.0061084 Eth
$988,378.00
60,331.040 LINK
0.2887%
37
FMCPAY
LINK-BTC$16.14
0.0061131 Eth
$966,293.00
58,386.100 LINK
0.2794%
38
PointPay
LINK-USDT$16.17
0.0061230 Eth
$949,975.00
57,006.582 LINK
0.2728%
39
Trubit
LINK-USDT$16.11
0.0061021 Eth
$881,600.00
52,357.490 LINK
0.2506%
40
Bitbank
LINK-JPY$16.14
0.0060993 Eth
$777,776.00
48,177.227 LINK
0.2306%
41
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$16.18
0.0061136 Eth
$739,500.00
44,598.105 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2134%
42
OKX
LINK-USDC$16.17
0.0061105 Eth
$717,388.00
44,099.159 LINK
0.2111%
43
EXMO
LINK-USDT$16.20
0.0061114 Eth
$705,791.00
43,569.982 LINK
0.2085%
44
BigONE
LINK-USDT$16.21
0.0061298 Eth
$685,325.00
42,283.140 LINK
0.2024%
45
tanX
LINK-USDC$16.11
0.0061075 Eth
$668,000.00
39,633.710 LINK
0.1897%
46
Phemex
LINK-USDT$16.16
0.0061044 Eth
$643,479.00
39,823.680 LINK
0.1906%
47
WhiteBIT
LINK-BTC$16.17
0.0061088 Eth
$549,677.00
33,993.980 LINK
0.1627%
48
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$16.18
0.0061041 Eth
$535,259.00
32,760.636 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1568%
49
LATOKEN
LINK-BTC$16.09
0.0060965 Eth
$524,817.00
32,623.978 LINK
0.1561%
50
BitStorage
LINK-USDT$16.15
0.0061155 Eth
$488,846.00
30,268.350 LINK
0.1449%
51
Gemini
LINK-USD$16.11
0.0060774 Eth
$486,395.00
30,194.346 LINK
0.1445%
52
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$16.14
0.0060984 Eth
$456,441.00
28,136.227 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1347%
53
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$16.18
0.0061041 Eth
$439,110.00
453,368.859 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.1698%
54
QMall
LINK-USDC$16.19
0.0061075 Eth
$419,380.00
25,176.793 LINK
0.1205%
55
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$16.17
0.0061084 Eth
$414,395.00
25,404.268 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1216%
56
Binance
LINK-TRY$16.05
0.0060825 Eth
$322,399.00
19,366.380 LINK
0.0927%
57
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$16.11
0.0060859 Eth
$311,494.00
19,143.294 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0916%
58
XT.COM
LINK-ETH$16.07
0.0060883 Eth
$305,774.00
18,793.520 LINK
0.0899%
59
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$16.20
0.0061187 Eth
$304,529.00
18,216.153 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0872%
60
Coinone
LINK-KRW$16.38
0.0061806 Eth
$300,163.00
18,322.423 LINK
0.0877%
61
itBit
LINK-USD$16.09
0.0060938 Eth
$295,986.00
18,395.622 LINK
0.0880%
62
GMO Japan
LINK-JPY$16.12
0.0060891 Eth
$295,013.00
18,303.600 LINK
0.0876%
63
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$16.17
0.0061099 Eth
$290,430.00
34,885.365 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1670%
64
BitMart
LINK-BTC$16.19
0.0061095 Eth
$280,298.00
17,308.640 LINK
0.0828%
65
BitStorage
LINK-ETH$16.10
0.0061088 Eth
$242,326.00
15,052.850 LINK
0.0720%
66
Slex
LINK-ETH$16.06
0.0060873 Eth
$235,011.00
14,412.550 LINK
0.0690%
67
Coinbase Exchange
LINK-BTC$16.19
0.0061166 Eth
$214,984.00
13,278.370 LINK
0.0636%
68
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$16.12
0.0060810 Eth
$212,744.00
13,043.260 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0624%
69
Bybit
LINK-USDC$16.16
0.0060961 Eth
$206,250.00
12,247.161 LINK
0.0586%
70
BitDelta
LINK-USDT$16.20
0.0061105 Eth
$204,523.00
12,211.000 LINK
0.0584%
71
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$16.17
0.0060994 Eth
$198,122.00
12,125.584 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0580%
72
Hotcoin
LINK-BTC$16.12
0.0061053 Eth
$187,321.00
11,623.070 LINK
0.0556%
73
Bitkub
LINK-THB$16.18
0.0061121 Eth
$172,237.00
10,646.456 LINK
0.0510%
74
BYDFi
LINK-USDC$16.11
0.0061101 Eth
$169,119.00
10,496.300 LINK
0.0502%
75
Coinbase Exchange
LINK-USDT$16.06
0.0060838 Eth
$167,434.00
10,425.793 LINK
0.0499%
76
Bybit
LINK-EUR$16.09
0.0060693 Eth
$166,146.00
9,930.910 LINK
0.0475%
77
Bitci TR
LINK-TRY$16.00
0.0060520 Eth
$165,929.00
9,819.550 LINK
0.0470%
78
Kraken
LINK-GBP$16.10
0.0060809 Eth
$164,821.00
10,239.803 LINK
0.0490%
79
CoinTR
LINK-TRY$16.21
0.0061147 Eth
$159,386.00
9,458.770 LINK
0.0453%
80
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$16.10
0.0060847 Eth
$150,757.00
9,608.210 0X5947BB275C521040051D82396192181B413227A3
0.0460%
81
bitcastle
LINK-USDT$16.19
0.0061067 Eth
$129,936.00
7,803.160 LINK
0.0373%
82
WhiteBIT
LINK-TRY$15.97
0.0060717 Eth
$124,964.00
7,825.720 LINK
0.0375%
83
KuCoin
LINK-USDC$16.17
0.0061014 Eth
$119,458.00
7,386.474 LINK
0.0354%
84
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$16.17
0.0061099 Eth
$99,068.00
5,843.602 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0280%
85
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$16.14
0.0060893 Eth
$98,993.00
6,069.994 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0291%
86
Coinbase Exchange
LINK-ETH$16.22
0.0061357 Eth
$84,535.00
5,210.670 LINK
0.0249%
87
Bitso
LINK-USD$16.17
0.0061015 Eth
$83,712.00
5,176.046 LINK
0.0248%
88
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$16.17
0.0061103 Eth
$77,474.00
4,680.171 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0224%
89
Binance US
LINK-USDT$16.16
0.0061102 Eth
$68,759.00
4,255.906 LINK
0.0204%
90
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$16.10
0.0060841 Eth
$54,683.00
56,974.541 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.2727%
91
PancakeSwap (v2)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$16.12
0.0060918 Eth
$54,227.00
3,331.969 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0159%
92
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$16.13
0.0060943 Eth
$53,740.00
3,297.776 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0158%
93
Hotcoin
LINK-ETH$16.15
0.0061148 Eth
$52,519.00
3,251.540 LINK
0.0156%
94
Uniswap V4 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$16.00
0.0060460 Eth
$45,358.00
47,628.825 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.2280%
95
LFJ
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$16.00
0.0060370 Eth
$42,482.00
2,689.205 0X5947BB275C521040051D82396192181B413227A3
0.0129%
96
Mercado Bitcoin
LINK-BRL$16.18
0.0061134 Eth
$41,336.00
2,554.457 LINK
0.0122%
97
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$16.14
0.0060978 Eth
$36,009.00
2,160.257 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0103%
98
Dex-Trade
LINK-ETH$16.13
0.0061112 Eth
$32,191.00
1,995.740 LINK
0.0096%
99
Bitexen
LINK-TRY$15.97
0.0060606 Eth
$28,730.00
1,798.444 LINK
0.0086%
100
OKX
LINK-EUR$16.19
0.0061088 Eth
$23,384.00
1,409.133 LINK
0.0067%

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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