ETH Price: $2,632.85 (-3.12%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

733,206 (0.00%)

Market

Price

$18.38 @ 0.006981 ETH (-2.03%)

Onchain Market Cap

$18,380,000,000.00

Circulating Supply Market Cap

$11,751,524,611.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
39.81813215 LINK

Value
$731.86 ( ~0.277972330183969 Eth) [0.0000%]
0x7a356f4921687bc6c4b74ad725ec031e5a3f032b
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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 16609.09% |ETH 0.0003846 1715.13%

Market

Volume (24H):$769,795,377.00
Market Capitalization:$11,751,524,611.00
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$18.41
0.0069789 Eth
$50,849,406.00
2,762,053.570 LINK
14.4294%
2
Bybit
LINK-USDT$18.37
0.0069549 Eth
$34,926,391.00
1,850,589.622 LINK
9.6678%
3
HTX
LINK-USDT$18.40
0.0069663 Eth
$21,353,856.00
1,133,203.521 LINK
5.9200%
4
P2B
LINK-USDT$18.41
0.0069680 Eth
$20,110,980.00
1,092,571.500 LINK
5.7078%
5
Gate.io
LINK-USDT$18.38
0.0069589 Eth
$14,003,870.00
741,535.800 LINK
3.8739%
6
OKX
LINK-USDT$18.39
0.0069614 Eth
$13,570,015.00
717,175.722 LINK
3.7466%
7
DigiFinex
LINK-USDT$18.38
0.0069615 Eth
$13,307,258.00
723,838.080 LINK
3.7814%
8
Binance
LINK-USDC$18.46
0.0069847 Eth
$11,494,693.00
610,459.820 LINK
3.1891%
9
XT.COM
LINK-USDT$18.39
0.0069621 Eth
$11,096,024.00
584,269.190 LINK
3.0523%
10
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$18.49
0.0070092 Eth
$10,901,965.00
589,897.206 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.0817%
11
MEXC
LINK-USDT$18.42
0.0069705 Eth
$9,761,540.00
530,013.200 LINK
2.7689%
12
Coinstore
LINK-USDT$18.40
0.0069755 Eth
$8,994,201.00
474,700.240 LINK
2.4799%
13
Bitunix
LINK-USDT$18.34
0.0069665 Eth
$7,578,927.00
413,134.030 LINK
2.1583%
14
KuCoin
LINK-USDT$18.38
0.0069599 Eth
$7,525,687.00
409,408.816 LINK
2.1388%
15
Binance
LINK-FDUSD$18.43
0.0069783 Eth
$7,315,011.00
385,228.900 LINK
2.0125%
16
CoinW
LINK-USDT$18.35
0.0069717 Eth
$7,220,835.00
393,429.670 LINK
2.0553%
17
Hotcoin
LINK-USDT$18.40
0.0069765 Eth
$7,109,103.00
386,285.110 LINK
2.0180%
18
BTSE
LINK-USDT$18.34
0.0069654 Eth
$7,102,744.00
387,345.868 LINK
2.0236%
19
Azbit
LINK-USDT$18.41
0.0069667 Eth
$6,593,590.00
347,313.920 LINK
1.8144%
20
BYDFi
LINK-USDT$18.35
0.0069642 Eth
$6,003,797.00
327,236.530 LINK
1.7095%
21
LATOKEN
LINK-USDT$18.40
0.0069652 Eth
$5,519,724.00
300,020.720 LINK
1.5674%
22
Binance
LINK-BTC$18.46
0.0069950 Eth
$5,180,548.00
275,812.820 LINK
1.4409%
23
Bitvavo
LINK-EUR$18.41
0.0069772 Eth
$4,825,578.00
262,180.464 LINK
1.3697%
24
QMall
LINK-USDT$18.38
0.0069591 Eth
$4,492,316.00
236,605.249 LINK
1.2361%
25
Coinbase Exchange
LINK-EUR$18.45
0.0069945 Eth
$3,921,348.00
212,515.560 LINK
1.1102%
26
Kraken
LINK-USD$18.37
0.0069562 Eth
$3,824,862.00
208,208.331 LINK
1.0877%
27
Dex-Trade
LINK-USDT$18.41
0.0069696 Eth
$3,388,103.00
184,059.502 LINK
0.9616%
28
FMCPAY
LINK-USDT$18.35
0.0069711 Eth
$2,671,674.00
142,069.742 LINK
0.7422%
29
Biconomy.com
LINK-USDT$18.41
0.0069663 Eth
$1,889,066.00
99,996.500 LINK
0.5224%
30
PointPay
LINK-USDT$18.38
0.0069822 Eth
$1,765,969.00
93,085.958 LINK
0.4863%
31
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$18.40
0.0069742 Eth
$1,731,055.00
93,605.919 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4890%
32
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$18.49
0.0070004 Eth
$1,599,363.00
86,413.238 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4514%
33
CoinEx
LINK-USDT$18.41
0.0069705 Eth
$1,570,702.00
83,171.852 LINK
0.4345%
34
Coinbase Exchange
LINK-GBP$18.40
0.0069655 Eth
$1,390,420.00
75,580.230 LINK
0.3948%
35
FMCPAY
LINK-ETH$18.41
0.0069694 Eth
$1,251,624.00
67,830.560 LINK
0.3544%
36
FMCPAY
LINK-BTC$18.39
0.0069612 Eth
$1,188,554.00
63,592.200 LINK
0.3322%
37
Phemex
LINK-USDT$18.41
0.0069804 Eth
$1,130,745.00
61,408.090 LINK
0.3208%
38
EXMO
LINK-USDT$18.42
0.0069823 Eth
$1,058,419.00
57,455.658 LINK
0.3002%
39
BigONE
LINK-USDT$18.33
0.0069617 Eth
$936,986.00
51,125.000 LINK
0.2671%
40
QMall
LINK-USDC$18.38
0.0069614 Eth
$904,577.00
48,032.213 LINK
0.2509%
41
BitStorage
LINK-USDT$18.41
0.0069823 Eth
$881,582.00
47,890.900 LINK
0.2502%
42
Trubit
LINK-USDT$18.36
0.0069713 Eth
$859,261.00
45,602.690 LINK
0.2382%
43
Gemini
LINK-USD$18.36
0.0069520 Eth
$842,012.00
45,862.820 LINK
0.2396%
44
Binance
LINK-TRY$18.53
0.0070174 Eth
$773,384.00
40,409.380 LINK
0.2111%
45
Binance
LINK-ETH$18.41
0.0069706 Eth
$773,314.00
41,748.140 LINK
0.2181%
46
tanX
LINK-USDC$18.39
0.0069799 Eth
$772,492.00
41,079.700 LINK
0.2146%
47
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$18.34
0.0069424 Eth
$737,874.00
39,041.040 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2040%
48
Binance
LINK-EUR$18.41
0.0069715 Eth
$718,433.00
37,757.360 LINK
0.1973%
49
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$18.38
0.0069603 Eth
$681,246.00
36,945.778 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1930%
50
Bitbank
LINK-JPY$18.43
0.0069752 Eth
$654,928.00
35,543.718 LINK
0.1857%
51
Coinbase Exchange
LINK-ETH$18.40
0.0069761 Eth
$632,988.00
34,396.490 LINK
0.1797%
52
PancakeSwap (v2)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$18.42
0.0069739 Eth
$573,686.00
17,823.623 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0931%
53
Azbit
LINK-ETH$18.44
0.0069784 Eth
$565,037.00
30,654.339 LINK
0.1601%
54
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$18.34
0.0069443 Eth
$557,179.00
30,189.537 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1577%
55
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$18.36
0.0069499 Eth
$547,377.00
29,570.889 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1545%
56
EarnBIT
LINK-USDT$18.33
0.0069610 Eth
$544,641.00
28,842.157 LINK
0.1507%
57
LATOKEN
LINK-BTC$18.43
0.0069802 Eth
$523,212.00
28,383.276 LINK
0.1483%
58
Bybit
LINK-USDC$18.47
0.0069922 Eth
$494,153.00
26,136.840 LINK
0.1365%
59
HashKey Exchange
LINK-USD$18.47
0.0069807 Eth
$468,547.00
24,380.052 LINK
0.1274%
60
Coinbase Exchange
LINK-USDT$18.40
0.0069766 Eth
$453,045.00
24,617.192 LINK
0.1286%
61
Coinbase Exchange
LINK-BTC$18.44
0.0069803 Eth
$436,949.00
23,700.980 LINK
0.1238%
62
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$18.41
0.0069800 Eth
$434,795.00
23,166.813 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1210%
63
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$18.49
0.0070004 Eth
$421,478.00
22,224.945 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1161%
64
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$18.34
0.0069443 Eth
$382,039.00
394,390.414 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.0604%
65
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$18.49
0.0070092 Eth
$369,865.00
41,108.382 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2148%
66
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$18.36
0.0069484 Eth
$360,109.00
19,548.997 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1021%
67
OKX
LINK-USDC$18.42
0.0069746 Eth
$346,806.00
18,268.613 LINK
0.0954%
68
Slex
LINK-ETH$18.40
0.0069902 Eth
$295,294.00
16,049.550 LINK
0.0838%
69
itBit
LINK-USD$18.39
0.0069615 Eth
$286,815.00
15,596.235 LINK
0.0815%
70
BitDelta
LINK-USDT$18.36
0.0069749 Eth
$275,333.00
14,601.000 LINK
0.0763%
71
BitMart
LINK-BTC$18.40
0.0069644 Eth
$269,523.00
14,651.500 LINK
0.0765%
72
Hotcoin
LINK-BTC$18.38
0.0069724 Eth
$265,363.00
14,435.870 LINK
0.0754%
73
BYDFi
LINK-USDC$18.48
0.0070133 Eth
$229,830.00
12,439.170 LINK
0.0650%
74
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$18.40
0.0069766 Eth
$228,340.00
12,065.563 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0630%
75
bitcastle
LINK-USDT$18.37
0.0069652 Eth
$216,807.00
11,432.130 LINK
0.0597%
76
Bitkub
LINK-THB$18.54
0.0070291 Eth
$200,845.00
10,831.189 LINK
0.0566%
77
PointPay
LINK-BTC$18.52
0.0069948 Eth
$199,079.00
10,582.650 LINK
0.0553%
78
BitStorage
LINK-ETH$18.45
0.0069836 Eth
$191,839.00
10,398.710 LINK
0.0543%
79
KuCoin
LINK-USDC$18.35
0.0069469 Eth
$189,475.00
10,324.921 LINK
0.0539%
80
Kraken
LINK-GBP$18.38
0.0069605 Eth
$177,351.00
9,648.210 LINK
0.0504%
81
Bitci TR
LINK-TRY$18.47
0.0069946 Eth
$172,634.00
9,118.360 LINK
0.0476%
82
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$18.51
0.0070096 Eth
$153,219.00
8,083.855 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0422%
83
Bitso
LINK-USD$18.38
0.0069703 Eth
$144,720.00
7,875.250 LINK
0.0411%
84
WhiteBIT
LINK-TRY$18.48
0.0069960 Eth
$138,804.00
7,512.870 LINK
0.0392%
85
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$18.38
0.0069603 Eth
$132,409.00
7,092.136 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0371%
86
WhiteBIT
LINK-BTC$18.37
0.0069722 Eth
$125,178.00
6,815.000 LINK
0.0356%
87
CoinTR
LINK-TRY$18.53
0.0070153 Eth
$123,761.00
6,545.040 LINK
0.0342%
88
CoinEx
LINK-USDC$18.34
0.0069432 Eth
$110,167.00
5,957.578 LINK
0.0311%
89
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$18.41
0.0069708 Eth
$102,801.00
5,667.383 0X5947BB275C521040051D82396192181B413227A3
0.0296%
90
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$18.41
0.0069689 Eth
$99,029.00
5,367.323 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0280%
91
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$18.49
0.0070004 Eth
$84,366.00
85,890.440 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.4487%
92
EXMO
LINK-BTC$18.39
0.0069613 Eth
$82,212.00
4,471.544 LINK
0.0234%
93
Mercado Bitcoin
LINK-BRL$18.56
0.0070295 Eth
$79,585.00
4,287.010 LINK
0.0224%
94
WhiteBIT
LINK-EUR$18.40
0.0069674 Eth
$78,395.00
4,259.770 LINK
0.0223%
95
BitMart
LINK-ETH$18.43
0.0069769 Eth
$74,099.00
4,020.880 LINK
0.0210%
96
Hotcoin
LINK-ETH$18.42
0.0069726 Eth
$73,150.00
3,971.370 LINK
0.0207%
97
Binance US
LINK-USDT$18.44
0.0069788 Eth
$65,717.00
3,563.956 LINK
0.0186%
98
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$18.51
0.0070096 Eth
$51,174.00
2,704.403 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0141%
99
KuCoin
LINK-BTC$18.43
0.0069774 Eth
$45,908.00
2,491.179 LINK
0.0130%
100
Dex-Trade
LINK-ETH$18.45
0.0069850 Eth
$25,038.00
1,357.195 LINK
0.0071%

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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