ETH Price: $3,406.58 (+4.63%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

732,422 ( 0.024%)

Market

Price

$25.86 @ 0.007591 ETH (+3.11%)

Onchain Market Cap

$25,860,000,000.00

Circulating Supply Market Cap

$16,482,793,192.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
35.48349411 LINK

Value
$917.60 ( ~0.269360733430443 Eth) [0.0000%]
0xfb511558ec4496393a9e8a77848cd9d6508b2dfd
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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 23409.09% |ETH 0.0003846 1873.74%

Market

Volume (24H):$832,992,316.00
Market Capitalization:$16,482,793,192.00
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$25.65
0.0075586 Eth
$106,784,189.00
4,252,649.130 LINK
22.8068%
2
Coinbase Exchange
LINK-USD$25.85
0.0075981 Eth
$50,234,906.00
1,943,248.090 LINK
10.4216%
3
Bybit
LINK-USDT$25.90
0.0076075 Eth
$36,139,459.00
1,437,994.157 LINK
7.7119%
4
Gate.io
LINK-USDT$25.90
0.0076049 Eth
$18,904,638.00
753,918.280 LINK
4.0432%
5
Slex
LINK-USDT$25.90
0.0076105 Eth
$18,456,956.00
741,076.030 LINK
3.9744%
6
OKX
LINK-USDT$25.89
0.0076052 Eth
$16,847,675.00
668,777.212 LINK
3.5866%
7
MEXC
LINK-USDT$25.81
0.0075872 Eth
$15,636,001.00
605,716.330 LINK
3.2484%
8
DigiFinex
LINK-USDT$25.92
0.0076112 Eth
$14,579,524.00
562,386.620 LINK
3.0161%
9
HTX
LINK-USDT$25.90
0.0076046 Eth
$12,173,585.00
488,646.891 LINK
2.6206%
10
XT.COM
LINK-USDT$25.83
0.0075931 Eth
$11,028,713.00
438,665.370 LINK
2.3525%
11
Azbit
LINK-USDT$25.83
0.0075900 Eth
$10,859,648.00
431,713.574 LINK
2.3153%
12
Coinstore
LINK-USDT$25.86
0.0075917 Eth
$9,691,926.00
385,853.730 LINK
2.0693%
13
Bitunix
LINK-USDT$25.88
0.0076076 Eth
$9,015,284.00
348,350.680 LINK
1.8682%
14
Binance
LINK-USDC$25.83
0.0075931 Eth
$8,034,431.00
320,315.760 LINK
1.7178%
15
KuCoin
LINK-USDT$25.90
0.0076034 Eth
$7,696,751.00
297,203.419 LINK
1.5939%
16
CoinW
LINK-USDT$25.88
0.0076076 Eth
$7,640,403.00
295,168.220 LINK
1.5830%
17
Binance
LINK-FDUSD$25.95
0.0076283 Eth
$7,513,300.00
299,057.480 LINK
1.6038%
18
BYDFi
LINK-USDT$25.91
0.0076075 Eth
$6,367,259.00
245,727.480 LINK
1.3178%
19
BTSE
LINK-USDT$25.68
0.0075525 Eth
$5,684,507.00
221,353.438 LINK
1.1871%
20
LBank
LINK-USDT$25.89
0.0076085 Eth
$5,585,167.00
215,719.040 LINK
1.1569%
21
Kraken
LINK-USD$25.91
0.0076092 Eth
$5,436,166.00
209,848.285 LINK
1.1254%
22
LATOKEN
LINK-USDT$25.82
0.0075887 Eth
$5,430,042.00
210,310.231 LINK
1.1279%
23
Hotcoin
LINK-USDT$25.92
0.0076143 Eth
$4,834,225.00
186,485.456 LINK
1.0001%
24
QMall
LINK-USDT$25.92
0.0076111 Eth
$4,530,855.00
180,042.169 LINK
0.9656%
25
Bitvavo
LINK-EUR$25.81
0.0075860 Eth
$4,178,264.00
161,883.570 LINK
0.8682%
26
FMCPAY
LINK-USDT$25.83
0.0075943 Eth
$3,678,060.00
146,955.774 LINK
0.7881%
27
Coinbase Exchange
LINK-EUR$25.88
0.0075984 Eth
$3,562,177.00
137,641.420 LINK
0.7382%
28
Dex-Trade
LINK-USDT$25.90
0.0076046 Eth
$3,535,451.00
136,497.291 LINK
0.7320%
29
CoinEx
LINK-USDT$25.88
0.0076081 Eth
$2,487,250.00
99,023.887 LINK
0.5311%
30
Biconomy.com
LINK-USDT$25.60
0.0075602 Eth
$2,245,683.00
89,809.920 LINK
0.4816%
31
FMCPAY
LINK-ETH$25.59
0.0075781 Eth
$1,816,051.00
70,388.160 LINK
0.3775%
32
PointPay
LINK-USDT$25.65
0.0075622 Eth
$1,701,869.00
67,752.269 LINK
0.3634%
33
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$25.91
0.0076096 Eth
$1,682,098.00
65,002.425 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3486%
34
Coinbase Exchange
LINK-GBP$25.88
0.0075974 Eth
$1,652,140.00
63,846.820 LINK
0.3424%
35
FMCPAY
LINK-BTC$25.81
0.0075859 Eth
$1,641,979.00
65,231.700 LINK
0.3498%
36
Phemex
LINK-USDT$25.92
0.0076150 Eth
$1,307,523.00
50,442.290 LINK
0.2705%
37
tanX
LINK-USDC$25.84
0.0075936 Eth
$1,231,305.00
49,270.430 LINK
0.2642%
38
EXMO
LINK-USDT$25.94
0.0076200 Eth
$1,209,292.00
46,621.727 LINK
0.2500%
39
Bybit
LINK-USDC$25.85
0.0075932 Eth
$1,087,217.00
43,010.167 LINK
0.2307%
40
Binance
LINK-TRY$25.83
0.0075846 Eth
$1,006,120.00
40,167.250 LINK
0.2154%
41
Azbit
LINK-ETH$25.83
0.0075908 Eth
$995,688.00
38,545.912 LINK
0.2067%
42
BitStorage
LINK-USDT$25.90
0.0076091 Eth
$915,111.00
35,330.870 LINK
0.1895%
43
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.82
0.0075793 Eth
$877,760.00
33,811.703 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1813%
44
Bitbank
LINK-JPY$25.94
0.0076209 Eth
$867,167.00
33,423.273 LINK
0.1792%
45
Trubit
LINK-USDT$25.91
0.0076099 Eth
$860,832.00
34,587.990 LINK
0.1855%
46
Gemini
LINK-USD$25.79
0.0075704 Eth
$783,284.00
30,376.747 LINK
0.1629%
47
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$25.86
0.0075956 Eth
$755,819.00
29,038.617 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1557%
48
Coinbase Exchange
LINK-USDT$25.87
0.0076017 Eth
$750,144.00
29,001.272 LINK
0.1555%
49
EarnBIT
LINK-USDT$25.66
0.0075472 Eth
$743,389.00
29,581.986 LINK
0.1586%
50
itBit
LINK-USD$25.63
0.0075790 Eth
$720,753.00
28,121.459 LINK
0.1508%
51
WhiteBIT
LINK-TRY$25.78
0.0075773 Eth
$702,076.00
27,228.210 LINK
0.1460%
52
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$25.82
0.0075870 Eth
$678,674.00
26,809.308 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1438%
53
Binance
LINK-EUR$25.92
0.0076104 Eth
$678,580.00
26,942.230 LINK
0.1445%
54
BigONE
LINK-USDT$25.86
0.0076013 Eth
$675,698.00
26,124.910 LINK
0.1401%
55
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.90
0.0076072 Eth
$667,787.00
25,697.686 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1378%
56
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$25.85
0.0075960 Eth
$663,189.00
52,947.196 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2840%
57
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$25.85
0.0075880 Eth
$654,369.00
25,745.420 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1381%
58
QMall
LINK-USDC$25.87
0.0076022 Eth
$627,170.00
25,011.511 LINK
0.1341%
59
HashKey Exchange
LINK-USD$25.84
0.0075910 Eth
$599,832.00
24,000.825 LINK
0.1287%
60
OKX
LINK-USDC$25.92
0.0076134 Eth
$582,142.00
23,211.348 LINK
0.1245%
61
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$25.80
0.0075737 Eth
$495,450.00
481,564.536 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.5826%
62
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$25.80
0.0075771 Eth
$486,799.00
19,437.467 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1042%
63
LATOKEN
LINK-BTC$25.81
0.0075861 Eth
$463,128.00
17,943.656 LINK
0.0962%
64
Coinbase Exchange
LINK-ETH$26.01
0.0076430 Eth
$431,950.00
16,608.220 LINK
0.0891%
65
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.88
0.0075976 Eth
$428,929.00
16,528.966 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0886%
66
Coinbase Exchange
LINK-BTC$25.84
0.0075937 Eth
$424,017.00
16,412.000 LINK
0.0880%
67
Kraken
LINK-GBP$25.89
0.0076059 Eth
$345,048.00
13,325.401 LINK
0.0715%
68
GMO Japan
LINK-JPY$25.93
0.0076175 Eth
$341,641.00
13,175.600 LINK
0.0707%
69
WhiteBIT
LINK-BTC$25.82
0.0075888 Eth
$335,487.00
12,991.380 LINK
0.0697%
70
Tokpie
LINK-USDT$25.54
0.0074856 Eth
$290,435.00
11,369.574 LINK
0.0610%
71
BitMart
LINK-BTC$25.90
0.0076088 Eth
$289,877.00
11,190.460 LINK
0.0600%
72
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$25.98
0.0076308 Eth
$280,976.00
11,192.253 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0600%
73
Bitci TR
LINK-TRY$25.86
0.0075989 Eth
$251,194.00
10,107.685 LINK
0.0542%
74
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$25.80
0.0075737 Eth
$247,770.00
9,953.655 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0534%
75
WhiteBIT
LINK-EUR$25.86
0.0075989 Eth
$247,198.00
9,560.550 LINK
0.0513%
76
Slex
LINK-ETH$25.81
0.0075857 Eth
$201,338.00
7,778.630 LINK
0.0417%
77
BitStorage
LINK-ETH$25.87
0.0076047 Eth
$191,512.00
7,401.870 LINK
0.0397%
78
Bitkub
LINK-THB$25.53
0.0075255 Eth
$187,164.00
7,330.142 LINK
0.0393%
79
PointPay
LINK-BTC$25.88
0.0076070 Eth
$181,804.00
7,147.048 LINK
0.0383%
80
Nonkyc.io
LINK-BTC$25.73
0.0075544 Eth
$177,293.00
6,947.455 LINK
0.0373%
81
Hotcoin
LINK-BTC$25.93
0.0076021 Eth
$168,202.00
6,487.770 LINK
0.0348%
82
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$25.90
0.0076111 Eth
$152,475.00
6,110.714 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0328%
83
Binance US
LINK-USDT$25.87
0.0076041 Eth
$151,305.00
5,847.781 LINK
0.0314%
84
Binance
LINK-BRL$26.00
0.0076326 Eth
$144,656.00
5,774.620 LINK
0.0310%
85
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$25.93
0.0076193 Eth
$134,067.00
5,181.001 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0278%
86
Bitso
LINK-USD$25.86
0.0075966 Eth
$133,950.00
5,180.110 LINK
0.0278%
87
BYDFi
LINK-USDC$25.73
0.0075649 Eth
$132,210.00
5,139.030 LINK
0.0276%
88
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$25.92
0.0076172 Eth
$126,317.00
4,846.537 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0260%
89
CoinTR
LINK-TRY$25.78
0.0075760 Eth
$125,833.00
5,062.960 LINK
0.0272%
90
KuCoin
LINK-USDC$25.86
0.0075931 Eth
$125,243.00
4,842.704 LINK
0.0260%
91
Mercado Bitcoin
LINK-BRL$25.94
0.0076228 Eth
$119,316.00
4,599.749 LINK
0.0247%
92
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$25.91
0.0076096 Eth
$102,064.00
98,386.162 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.5276%
93
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$25.88
0.0076005 Eth
$89,911.00
86,777.726 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.4654%
94
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$25.90
0.0076081 Eth
$86,018.00
3,400.469 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0182%
95
BitMart
LINK-ETH$25.91
0.0076106 Eth
$85,737.00
3,309.000 LINK
0.0177%
96
Hotcoin
LINK-ETH$25.81
0.0075873 Eth
$51,083.00
1,978.860 LINK
0.0106%
97
BTCMarkets
LINK-AUD$25.85
0.0075995 Eth
$46,045.00
1,781.096 LINK
0.0096%
98
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$25.80
0.0075737 Eth
$44,251.00
1,736.408 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0093%
99
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$25.92
0.0076185 Eth
$43,328.00
1,743.730 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0094%
100
Dex-Trade
LINK-ETH$25.92
0.0076114 Eth
$24,430.00
942.350 LINK
0.0051%

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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