ETH Price: $3,393.10 (+4.22%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

729,766 ( 0.027%)

Market

Price

$26.16 @ 0.007710 ETH (+0.62%)

Onchain Market Cap

$26,160,000,000.00

Circulating Supply Market Cap

$16,674,355,053.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0x6f3a56d041ae5ee7f23894f6a7d879c22d28cefe
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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 23681.82% |ETH 0.0003846 1904.68%

Market

Volume (24H):$1,265,695,973.00
Market Capitalization:$16,674,355,053.00
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$26.09
0.0076971 Eth
$75,182,821.00
2,881,671.960 LINK
13.0131%
2
Bybit
LINK-USDT$26.16
0.0077171 Eth
$51,197,182.00
1,993,781.213 LINK
9.0036%
3
Slex
LINK-USDT$26.10
0.0077008 Eth
$25,954,879.00
1,009,351.980 LINK
4.5581%
4
Gate.io
LINK-USDT$26.12
0.0077042 Eth
$21,615,705.00
840,761.340 LINK
3.7967%
5
HTX
LINK-USDT$26.11
0.0077020 Eth
$20,417,913.00
794,131.458 LINK
3.5862%
6
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$26.08
0.0076905 Eth
$20,267,119.00
774,962.611 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.4996%
7
OKX
LINK-USDT$26.13
0.0077097 Eth
$19,479,302.00
756,608.761 LINK
3.4167%
8
DigiFinex
LINK-USDT$26.11
0.0077049 Eth
$19,463,269.00
745,319.690 LINK
3.3657%
9
MEXC
LINK-USDT$26.22
0.0077281 Eth
$16,436,147.00
626,925.090 LINK
2.8311%
10
XT.COM
LINK-USDT$26.12
0.0077046 Eth
$15,585,059.00
607,442.270 LINK
2.7431%
11
Azbit
LINK-USDT$26.21
0.0077280 Eth
$15,203,630.00
592,487.014 LINK
2.6756%
12
Binance
LINK-USDC$26.15
0.0077131 Eth
$14,324,210.00
557,490.380 LINK
2.5175%
13
Binance
LINK-FDUSD$26.11
0.0076986 Eth
$13,217,492.00
514,283.170 LINK
2.3224%
14
Coinstore
LINK-USDT$26.07
0.0076913 Eth
$12,772,245.00
497,831.730 LINK
2.2481%
15
Bitunix
LINK-USDT$26.14
0.0077114 Eth
$11,903,993.00
455,504.070 LINK
2.0570%
16
KuCoin
LINK-USDT$26.12
0.0077028 Eth
$11,378,381.00
435,693.639 LINK
1.9675%
17
CoinW
LINK-USDT$26.21
0.0077278 Eth
$10,212,264.00
389,561.880 LINK
1.7592%
18
Hotcoin
LINK-USDT$26.20
0.0077243 Eth
$9,691,671.00
369,868.580 LINK
1.6703%
19
BYDFi
LINK-USDT$26.11
0.0077011 Eth
$8,746,163.00
335,025.900 LINK
1.5129%
20
BTSE
LINK-USDT$26.09
0.0076949 Eth
$8,669,900.00
332,273.161 LINK
1.5005%
21
LBank
LINK-USDT$26.13
0.0077037 Eth
$7,597,393.00
290,720.230 LINK
1.3128%
22
Kraken
LINK-USD$26.12
0.0077064 Eth
$7,305,862.00
279,713.189 LINK
1.2631%
23
LATOKEN
LINK-USDT$26.11
0.0077011 Eth
$7,215,765.00
276,403.277 LINK
1.2482%
24
QMall
LINK-USDT$26.12
0.0077053 Eth
$6,122,348.00
238,635.781 LINK
1.0776%
25
Coinbase Exchange
LINK-EUR$26.14
0.0077098 Eth
$5,591,883.00
213,926.180 LINK
0.9661%
26
Bitvavo
LINK-EUR$26.14
0.0077103 Eth
$5,578,940.00
213,448.196 LINK
0.9639%
27
Sushiswap
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$26.19
0.0077206 Eth
$5,361,471.00
53,153.964 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.2400%
28
Dex-Trade
LINK-USDT$26.15
0.0077182 Eth
$4,661,648.00
178,284.250 LINK
0.8051%
29
WhiteBIT
LINK-BTC$26.14
0.0077079 Eth
$4,608,142.00
176,307.950 LINK
0.7962%
30
FMCPAY
LINK-USDT$26.15
0.0077222 Eth
$3,917,418.00
152,035.380 LINK
0.6866%
31
WhiteBIT
LINK-TRY$26.21
0.0077248 Eth
$3,822,438.00
145,848.740 LINK
0.6586%
32
Coinbase Exchange
LINK-GBP$26.10
0.0076969 Eth
$3,502,943.00
134,209.300 LINK
0.6061%
33
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$26.13
0.0077049 Eth
$3,216,996.00
123,267.421 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5567%
34
CoinEx
LINK-USDT$26.13
0.0077094 Eth
$2,791,976.00
108,051.204 LINK
0.4879%
35
Biconomy.com
LINK-USDT$26.16
0.0077117 Eth
$2,652,960.00
103,057.879 LINK
0.4654%
36
PointPay
LINK-USDT$26.11
0.0077013 Eth
$2,399,747.00
93,535.817 LINK
0.4224%
37
Tokpie
LINK-USDT$25.89
0.0076497 Eth
$2,354,696.00
90,948.456 LINK
0.4107%
38
FMCPAY
LINK-ETH$26.20
0.0077213 Eth
$1,933,814.00
73,938.080 LINK
0.3339%
39
Kraken
LINK-EUR$26.10
0.0077000 Eth
$1,841,286.00
70,554.859 LINK
0.3186%
40
FMCPAY
LINK-BTC$26.09
0.0076988 Eth
$1,709,020.00
65,631.850 LINK
0.2964%
41
Phemex
LINK-USDT$26.16
0.0077239 Eth
$1,688,278.00
64,524.860 LINK
0.2914%
42
EXMO
LINK-USDT$26.13
0.0077098 Eth
$1,611,046.00
61,656.708 LINK
0.2784%
43
BigONE
LINK-USDT$26.16
0.0077201 Eth
$1,574,415.00
60,174.640 LINK
0.2717%
44
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$26.15
0.0077110 Eth
$1,335,167.00
52,310.782 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.2362%
45
tanX
LINK-USDC$26.13
0.0077111 Eth
$1,318,188.00
51,200.310 LINK
0.2312%
46
Binance
LINK-TRY$26.12
0.0077046 Eth
$1,170,397.00
45,578.910 LINK
0.2058%
47
BitStorage
LINK-USDT$26.07
0.0076922 Eth
$1,170,038.00
44,874.330 LINK
0.2026%
48
Gemini
LINK-USD$26.19
0.0077267 Eth
$1,162,168.00
44,377.981 LINK
0.2004%
49
OKX
LINK-USDC$26.13
0.0077093 Eth
$1,119,861.00
43,318.228 LINK
0.1956%
50
Coinbase Exchange
LINK-USDT$26.20
0.0077243 Eth
$1,107,068.00
42,249.654 LINK
0.1908%
51
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$26.21
0.0077327 Eth
$1,087,768.00
41,586.796 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1878%
52
Bitbank
LINK-JPY$26.11
0.0076980 Eth
$1,063,760.00
40,733.728 LINK
0.1839%
53
Bybit
LINK-USDC$26.20
0.0077312 Eth
$1,056,654.00
41,149.764 LINK
0.1858%
54
QMall
LINK-USDC$26.11
0.0077020 Eth
$1,044,204.00
40,734.634 LINK
0.1840%
55
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$26.04
0.0076780 Eth
$1,041,614.00
1,019,985.580 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
4.6061%
56
WhiteBIT
LINK-EUR$26.19
0.0077244 Eth
$973,771.00
37,176.840 LINK
0.1679%
57
EarnBIT
LINK-USDT$26.19
0.0077215 Eth
$923,849.00
35,851.055 LINK
0.1619%
58
Binance
LINK-EUR$26.18
0.0077183 Eth
$895,159.00
34,585.580 LINK
0.1562%
59
Kraken
LINK-USDT$26.21
0.0077329 Eth
$875,917.00
33,420.660 LINK
0.1509%
60
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$26.11
0.0076976 Eth
$830,892.00
63,816.969 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2882%
61
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$26.16
0.0077159 Eth
$775,619.00
757,710.375 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
3.4217%
62
LATOKEN
LINK-BTC$26.21
0.0077275 Eth
$739,786.00
28,224.019 LINK
0.1275%
63
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$26.22
0.0077328 Eth
$726,359.00
27,671.622 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1250%
64
Bitkub
LINK-THB$26.05
0.0077008 Eth
$711,036.00
27,291.429 LINK
0.1232%
65
Trubit
LINK-USDT$26.12
0.0077137 Eth
$706,680.00
27,598.270 LINK
0.1246%
66
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$26.08
0.0076946 Eth
$691,996.00
26,751.870 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1208%
67
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$26.20
0.0077281 Eth
$612,860.00
23,946.577 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1081%
68
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$26.07
0.0076899 Eth
$610,672.00
23,423.874 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1058%
69
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$26.20
0.0077242 Eth
$597,192.00
23,303.832 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.1052%
70
HashKey Exchange
LINK-USD$26.07
0.0076922 Eth
$592,853.00
22,987.299 LINK
0.1038%
71
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$26.15
0.0077144 Eth
$474,229.00
18,096.543 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0817%
72
Slex
LINK-ETH$26.17
0.0077158 Eth
$463,478.00
17,722.870 LINK
0.0800%
73
itBit
LINK-USD$26.09
0.0076982 Eth
$459,973.00
17,630.232 LINK
0.0796%
74
Coinbase Exchange
LINK-BTC$26.17
0.0077132 Eth
$445,345.00
17,020.400 LINK
0.0769%
75
Binance
LINK-BNB$26.23
0.0077394 Eth
$406,044.00
15,719.747 LINK
0.0710%
76
Hotcoin
LINK-BTC$26.06
0.0077086 Eth
$399,743.00
15,342.050 LINK
0.0693%
77
Slex
LINK-BTC$26.17
0.0077150 Eth
$390,708.00
15,012.700 LINK
0.0678%
78
BitDelta
LINK-USDT$26.09
0.0076965 Eth
$389,425.00
15,188.000 LINK
0.0686%
79
GMO Japan
LINK-JPY$26.21
0.0077297 Eth
$381,051.00
14,540.300 LINK
0.0657%
80
Uniswap V2 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$26.12
0.0077055 Eth
$367,605.00
13,998.165 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0632%
81
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$26.13
0.0077045 Eth
$361,317.00
352,695.044 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
1.5927%
82
Kraken
LINK-XBT$26.13
0.0077088 Eth
$339,285.00
12,985.900 LINK
0.0586%
83
BYDFi
LINK-USDC$26.13
0.0077109 Eth
$307,137.00
11,754.750 LINK
0.0531%
84
BitMart
LINK-BTC$26.16
0.0077157 Eth
$291,503.00
11,145.080 LINK
0.0503%
85
bitcastle
LINK-USDT$26.10
0.0076984 Eth
$291,032.00
11,343.360 LINK
0.0512%
86
PointPay
LINK-BTC$26.12
0.0077020 Eth
$282,478.00
10,867.255 LINK
0.0491%
87
Bitso
LINK-USD$26.08
0.0076894 Eth
$272,989.00
10,469.327 LINK
0.0473%
88
Bitci TR
LINK-TRY$26.28
0.0077593 Eth
$249,525.00
9,699.870 LINK
0.0438%
89
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$26.16
0.0077132 Eth
$234,704.00
9,184.245 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0415%
90
Binance US
LINK-USDT$26.15
0.0077245 Eth
$231,746.00
8,862.031 LINK
0.0400%
91
CoinTR
LINK-TRY$26.10
0.0077002 Eth
$185,305.00
7,217.140 LINK
0.0326%
92
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$26.04
0.0076796 Eth
$179,251.00
6,934.122 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0313%
93
Kraken
LINK-USDC$26.10
0.0077012 Eth
$168,940.00
6,472.413 LINK
0.0292%
94
Mercado Bitcoin
LINK-BRL$26.15
0.0077108 Eth
$168,896.00
6,459.458 LINK
0.0292%
95
Kraken
LINK-GBP$26.16
0.0077172 Eth
$158,521.00
6,060.686 LINK
0.0274%
96
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$26.17
0.0077154 Eth
$126,331.00
4,829.071 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0218%
97
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$26.20
0.0077223 Eth
$120,421.00
4,585.760 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0207%
98
Hotcoin
LINK-ETH$26.16
0.0077113 Eth
$120,217.00
4,595.500 LINK
0.0208%
99
BitMart
LINK-ETH$26.14
0.0077114 Eth
$115,207.00
4,407.160 LINK
0.0199%
100
Coins.ph
LINK-PHP$25.88
0.0076403 Eth
$68,011.00
2,638.845 LINK
0.0119%

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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