ETH Price: $2,670.07 (-0.28%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

736,465 ( 0.006%)

Market

Price

$17.58 @ 0.006584 ETH (-5.99%)

Onchain Market Cap

$17,580,000,000.00

Circulating Supply Market Cap

$11,219,896,179.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
Binance Dep: 0x7Ba50E5A41f0f0E5c1e5B3A250209549bdce39Fd
Balance
0 LINK

Value
$0.00
0x7ba50e5a41f0f0e5c1e5b3a250209549bdce39fd
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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 15881.82% |ETH 0.0003846 1611.91%

Market

Volume (24H):$685,247,857.00
Market Capitalization:$11,219,896,179.00
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$17.48
0.0065440 Eth
$79,210,539.00
4,432,149.250 LINK
20.2271%
2
Coinbase Exchange
LINK-USD$17.48
0.0065440 Eth
$30,581,529.00
1,749,415.300 LINK
7.9838%
3
Bybit
LINK-USDT$17.44
0.0065364 Eth
$27,106,378.00
1,516,780.143 LINK
6.9222%
4
HTX
LINK-USDT$17.46
0.0065452 Eth
$20,464,246.00
1,144,992.575 LINK
5.2254%
5
P2B
LINK-USDT$17.47
0.0065481 Eth
$15,549,294.00
889,819.270 LINK
4.0609%
6
Kraken
LINK-USD$17.49
0.0065470 Eth
$13,065,873.00
747,084.481 LINK
3.4095%
7
Bitget
LINK-USDT$17.46
0.0065444 Eth
$11,873,445.00
664,895.535 LINK
3.0344%
8
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$17.54
0.0065688 Eth
$11,414,004.00
636,058.833 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.9028%
9
Slex
LINK-USDT$17.54
0.0065578 Eth
$11,083,594.00
619,483.800 LINK
2.8272%
10
Gate.io
LINK-USDT$17.47
0.0065436 Eth
$9,816,251.00
550,005.160 LINK
2.5101%
11
DigiFinex
LINK-USDT$17.45
0.0065381 Eth
$9,505,760.00
544,804.580 LINK
2.4863%
12
OKX
LINK-USDT$17.47
0.0065464 Eth
$9,161,881.00
512,117.166 LINK
2.3372%
13
KuCoin
LINK-USDT$17.47
0.0065433 Eth
$8,277,413.00
473,798.275 LINK
2.1623%
14
XT.COM
LINK-USDT$17.51
0.0065490 Eth
$7,850,317.00
439,141.940 LINK
2.0041%
15
MEXC
LINK-EUR$17.58
0.0065708 Eth
$7,523,749.00
428,000.670 LINK
1.9533%
16
Coinstore
LINK-USDT$17.46
0.0065369 Eth
$6,796,935.00
380,588.600 LINK
1.7369%
17
Binance
LINK-FDUSD$17.46
0.0065440 Eth
$6,377,794.00
356,815.090 LINK
1.6284%
18
CoinW
LINK-USDT$17.51
0.0065490 Eth
$6,163,405.00
351,990.120 LINK
1.6064%
19
Binance
LINK-USDC$17.55
0.0065622 Eth
$5,505,194.00
308,122.700 LINK
1.4062%
20
Hotcoin
LINK-USDT$17.55
0.0065602 Eth
$5,342,672.00
304,391.780 LINK
1.3892%
21
Azbit
LINK-USDT$17.57
0.0065672 Eth
$4,717,709.00
263,929.009 LINK
1.2045%
22
Bitunix
LINK-USDT$17.54
0.0065584 Eth
$4,489,558.00
255,932.320 LINK
1.1680%
23
BYDFi
LINK-USDT$17.58
0.0065760 Eth
$4,360,307.00
247,964.630 LINK
1.1316%
24
BTSE
LINK-USDT$17.47
0.0065409 Eth
$4,215,620.00
241,242.606 LINK
1.1010%
25
WhiteBIT
LINK-USDT$17.58
0.0065716 Eth
$4,025,320.00
228,935.020 LINK
1.0448%
26
LATOKEN
LINK-USDT$17.56
0.0065682 Eth
$3,742,177.00
213,058.491 LINK
0.9723%
27
Coinbase Exchange
LINK-GBP$17.52
0.0065629 Eth
$3,569,461.00
203,704.930 LINK
0.9297%
28
QMall
LINK-USDT$17.54
0.0065578 Eth
$3,290,939.00
184,157.180 LINK
0.8404%
29
Bitvavo
LINK-EUR$17.53
0.0065540 Eth
$2,854,187.00
162,861.575 LINK
0.7433%
30
FMCPAY
LINK-USDT$17.45
0.0065401 Eth
$2,620,892.00
146,404.304 LINK
0.6681%
31
Dex-Trade
LINK-USDT$17.68
0.0066034 Eth
$2,511,590.00
142,050.590 LINK
0.6483%
32
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.55
0.0065681 Eth
$2,447,096.00
136,603.321 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.6234%
33
CoinEx
LINK-USDT$17.52
0.0065507 Eth
$2,268,828.00
126,881.088 LINK
0.5790%
34
Coinbase Exchange
LINK-EUR$17.48
0.0065451 Eth
$1,907,189.00
109,137.770 LINK
0.4981%
35
Binance
LINK-BTC$17.52
0.0065544 Eth
$1,797,214.00
100,686.930 LINK
0.4595%
36
Biconomy.com
LINK-USDT$17.48
0.0065425 Eth
$1,496,989.00
83,728.930 LINK
0.3821%
37
Binance
LINK-ETH$17.46
0.0065443 Eth
$1,366,902.00
76,606.040 LINK
0.3496%
38
PointPay
LINK-USDT$17.47
0.0065395 Eth
$1,202,920.00
67,370.343 LINK
0.3075%
39
FMCPAY
LINK-ETH$17.52
0.0065490 Eth
$1,181,864.00
65,987.840 LINK
0.3012%
40
FMCPAY
LINK-BTC$17.47
0.0065454 Eth
$1,143,804.00
63,985.900 LINK
0.2920%
41
EXMO
LINK-USDT$17.47
0.0065486 Eth
$825,350.00
47,232.677 LINK
0.2156%
42
Phemex
LINK-USDT$17.53
0.0065574 Eth
$824,936.00
47,050.820 LINK
0.2147%
43
tanX
LINK-USDC$17.56
0.0065644 Eth
$804,014.00
44,808.640 LINK
0.2045%
44
Trubit
LINK-USDT$17.48
0.0065421 Eth
$802,563.00
44,924.190 LINK
0.2050%
45
LATOKEN
LINK-BTC$17.57
0.0065710 Eth
$697,279.00
39,693.438 LINK
0.1811%
46
BigONE
LINK-USDT$17.50
0.0065463 Eth
$697,039.00
39,830.020 LINK
0.1818%
47
Bitbank
LINK-JPY$17.55
0.0065749 Eth
$695,194.00
39,601.782 LINK
0.1807%
48
WhiteBIT
LINK-BTC$17.58
0.0065746 Eth
$684,661.00
38,948.200 LINK
0.1777%
49
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$17.55
0.0065703 Eth
$666,885.00
37,198.653 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1698%
50
Gemini
LINK-USD$17.48
0.0065518 Eth
$653,106.00
37,357.408 LINK
0.1705%
51
BitStorage
LINK-USDT$17.58
0.0065795 Eth
$623,304.00
35,448.560 LINK
0.1618%
52
Binance
LINK-EUR$17.60
0.0065780 Eth
$617,278.00
34,387.230 LINK
0.1569%
53
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$17.58
0.0065792 Eth
$600,354.00
33,754.888 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1540%
54
itBit
LINK-USD$17.55
0.0065638 Eth
$534,357.00
30,447.707 LINK
0.1390%
55
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.55
0.0065703 Eth
$532,335.00
29,633.876 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1352%
56
OKX
LINK-USDC$17.44
0.0065341 Eth
$529,991.00
30,006.476 LINK
0.1369%
57
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$17.57
0.0065816 Eth
$485,983.00
51,754.416 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2362%
58
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.55
0.0065703 Eth
$469,783.00
479,828.995 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.1898%
59
QMall
LINK-USDC$17.53
0.0065562 Eth
$456,632.00
25,568.744 LINK
0.1167%
60
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.55
0.0065709 Eth
$446,516.00
24,749.980 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1130%
61
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$17.53
0.0065605 Eth
$417,522.00
23,445.087 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1070%
62
Binance
LINK-TRY$17.56
0.0065654 Eth
$414,928.00
23,206.830 LINK
0.1059%
63
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.55
0.0065701 Eth
$338,745.00
18,878.489 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0862%
64
Bybit
LINK-USDC$17.45
0.0065403 Eth
$337,129.00
18,852.392 LINK
0.0860%
65
Coinbase Exchange
LINK-USDT$17.52
0.0065498 Eth
$327,045.00
18,670.279 LINK
0.0852%
66
XT.COM
LINK-ETH$17.55
0.0065590 Eth
$321,871.00
17,956.140 LINK
0.0819%
67
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$17.59
0.0065885 Eth
$316,014.00
17,583.803 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0802%
68
BitDelta
LINK-USDT$17.47
0.0065402 Eth
$297,146.00
16,583.000 LINK
0.0757%
69
BitStorage
LINK-ETH$17.56
0.0065706 Eth
$296,004.00
16,857.130 LINK
0.0769%
70
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.56
0.0065718 Eth
$286,313.00
15,957.292 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0728%
71
Slex
LINK-ETH$17.52
0.0065518 Eth
$276,573.00
15,466.600 LINK
0.0706%
72
BitMart
LINK-BTC$17.52
0.0065573 Eth
$248,267.00
14,169.220 LINK
0.0647%
73
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.49
0.0065494 Eth
$239,613.00
13,411.296 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0612%
74
Binance US
LINK-USDT$17.54
0.0065616 Eth
$230,558.00
13,143.614 LINK
0.0600%
75
Hotcoin
LINK-BTC$17.57
0.0065713 Eth
$189,873.00
10,805.220 LINK
0.0493%
76
CoinTR
LINK-TRY$17.52
0.0065570 Eth
$189,724.00
10,596.880 LINK
0.0484%
77
Bitci TR
LINK-TRY$17.66
0.0066017 Eth
$182,000.00
10,154.570 LINK
0.0463%
78
BYDFi
LINK-USDC$17.56
0.0065652 Eth
$175,982.00
10,019.410 LINK
0.0457%
79
bitcastle
LINK-USDT$17.56
0.0065707 Eth
$164,269.00
9,189.900 LINK
0.0419%
80
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$17.53
0.0065687 Eth
$154,230.00
8,607.891 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0393%
81
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.46
0.0065444 Eth
$143,905.00
8,050.464 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0367%
82
Kraken
LINK-ETH$17.51
0.0065558 Eth
$143,720.00
8,206.704 LINK
0.0375%
83
Coinbase Exchange
LINK-ETH$17.50
0.0065478 Eth
$139,946.00
7,994.920 LINK
0.0365%
84
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$17.54
0.0065655 Eth
$128,628.00
7,200.434 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0329%
85
Kraken
LINK-GBP$17.85
0.0066829 Eth
$112,978.00
6,328.630 LINK
0.0289%
86
Coinbase Exchange
LINK-BTC$17.49
0.0065429 Eth
$108,180.00
6,184.770 LINK
0.0282%
87
KuCoin
LINK-USDC$17.49
0.0065508 Eth
$97,680.00
5,584.788 LINK
0.0255%
88
Bitso
LINK-USD$17.53
0.0065558 Eth
$94,322.00
5,381.043 LINK
0.0246%
89
Uniswap V4 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.57
0.0065729 Eth
$78,993.00
80,794.550 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.3687%
90
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$17.55
0.0065708 Eth
$74,909.00
76,482.013 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.3490%
91
BitMart
LINK-ETH$17.49
0.0065468 Eth
$71,277.00
4,074.460 LINK
0.0186%
92
Bitstamp
LINK-GBP$17.81
0.0066761 Eth
$69,392.00
3,895.304 LINK
0.0178%
93
Binance
LINK-BNB$17.59
0.0065764 Eth
$67,400.00
3,767.064 LINK
0.0172%
94
BTCMarkets
LINK-AUD$17.49
0.0065481 Eth
$66,520.00
3,802.519 LINK
0.0174%
95
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.57
0.0065729 Eth
$58,712.00
3,268.136 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0149%
96
Binance
LINK-BRL$17.54
0.0065669 Eth
$57,592.00
3,205.490 LINK
0.0146%
97
Hotcoin
LINK-ETH$17.61
0.0065792 Eth
$53,470.00
3,036.370 LINK
0.0139%
98
KuCoin
LINK-BTC$17.48
0.0065487 Eth
$44,985.00
2,572.807 LINK
0.0117%
99
Indodax
LINK-IDR$17.74
0.0066322 Eth
$42,415.00
2,391.301 LINK
0.0109%
100
Dex-Trade
LINK-ETH$17.53
0.0065542 Eth
$39,576.00
2,257.810 LINK
0.0103%

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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