ETH Price: $3,213.24 (+3.07%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

731,880 ( -0.045%)

Market

Price

$24.25 @ 0.007547 ETH (+3.57%)

Onchain Market Cap

$24,250,000,000.00

Circulating Supply Market Cap

$15,472,834,701.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
1 LINK

Value
$24.25 ( ~0.00754688808073342 Eth) [0.0000%]
0x268d0d374027960c1920d11cebd4357f9e266b90
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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 21945.45% |ETH 0.0003846 1862.3%

Market

Volume (24H):$1,043,915,011.00
Market Capitalization:$15,472,834,701.00
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$24.24
0.0075454 Eth
$70,847,982.00
2,922,409.840 LINK
15.1559%
2
Bybit
LINK-USDT$24.23
0.0075421 Eth
$53,985,904.00
2,291,032.812 LINK
11.8815%
3
OKX
LINK-USDT$24.26
0.0075501 Eth
$27,958,340.00
1,202,495.364 LINK
6.2363%
4
Gate.io
LINK-USDT$24.25
0.0075480 Eth
$17,606,813.00
747,178.440 LINK
3.8749%
5
Slex
LINK-USDT$24.24
0.0075463 Eth
$16,367,412.00
686,778.700 LINK
3.5617%
6
MEXC
LINK-USDT$24.24
0.0075482 Eth
$15,313,554.00
631,765.050 LINK
3.2764%
7
HTX
LINK-USDT$24.24
0.0075440 Eth
$14,935,980.00
629,123.270 LINK
3.2627%
8
XT.COM
LINK-USDT$24.25
0.0075494 Eth
$13,556,661.00
574,120.890 LINK
2.9774%
9
Azbit
LINK-USDT$24.25
0.0075490 Eth
$13,240,244.00
560,897.051 LINK
2.9089%
10
Binance
LINK-FDUSD$24.32
0.0075605 Eth
$11,852,605.00
501,324.940 LINK
2.5999%
11
Bitunix
LINK-USDT$24.25
0.0075483 Eth
$11,404,755.00
470,155.940 LINK
2.4383%
12
Coinstore
LINK-USDT$24.37
0.0075761 Eth
$11,093,027.00
469,320.920 LINK
2.4339%
13
Binance
LINK-USDC$24.32
0.0075591 Eth
$10,815,089.00
457,504.030 LINK
2.3727%
14
KuCoin
LINK-USDT$24.26
0.0075493 Eth
$10,576,474.00
436,042.782 LINK
2.2614%
15
Kraken
LINK-USD$24.27
0.0075547 Eth
$10,361,478.00
426,869.043 LINK
2.2138%
16
CoinW
LINK-USDT$24.27
0.0075567 Eth
$9,297,761.00
383,022.590 LINK
1.9864%
17
BYDFi
LINK-USDT$24.28
0.0075560 Eth
$7,875,172.00
324,383.040 LINK
1.6823%
18
Coinbase Exchange
LINK-EUR$24.24
0.0075471 Eth
$7,582,387.00
312,810.040 LINK
1.6223%
19
BTSE
LINK-USDT$24.28
0.0075555 Eth
$6,869,104.00
282,948.059 LINK
1.4674%
20
LBank
LINK-USDT$24.24
0.0075463 Eth
$6,831,119.00
281,832.520 LINK
1.4616%
21
LATOKEN
LINK-USDT$24.26
0.0075529 Eth
$6,734,362.00
277,592.083 LINK
1.4396%
22
QMall
LINK-USDT$24.27
0.0075552 Eth
$5,683,903.00
240,618.556 LINK
1.2479%
23
Bitvavo
LINK-EUR$24.26
0.0075503 Eth
$5,409,351.00
222,985.021 LINK
1.1564%
24
WhiteBIT
LINK-USDT$24.22
0.0075418 Eth
$4,596,231.00
189,748.280 LINK
0.9841%
25
Dex-Trade
LINK-USDT$24.24
0.0075434 Eth
$4,171,140.00
172,100.460 LINK
0.8925%
26
FMCPAY
LINK-USDT$24.24
0.0075471 Eth
$3,820,276.00
161,307.802 LINK
0.8366%
27
Biconomy.com
LINK-USDT$24.23
0.0075440 Eth
$3,565,934.00
152,849.470 LINK
0.7927%
28
CoinEx
LINK-USDT$24.30
0.0075498 Eth
$2,740,140.00
116,587.365 LINK
0.6046%
29
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$24.21
0.0075343 Eth
$2,512,931.00
104,401.709 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5414%
30
Coinbase Exchange
LINK-GBP$24.23
0.0075426 Eth
$2,284,892.00
94,319.400 LINK
0.4891%
31
PointPay
LINK-USDT$24.28
0.0075561 Eth
$2,283,857.00
96,678.650 LINK
0.5014%
32
Phemex
LINK-USDT$24.34
0.0075606 Eth
$1,983,293.00
81,491.590 LINK
0.4226%
33
WhiteBIT
LINK-TRY$24.23
0.0075452 Eth
$1,824,135.00
75,272.920 LINK
0.3904%
34
FMCPAY
LINK-ETH$24.22
0.0075411 Eth
$1,770,664.00
73,123.200 LINK
0.3792%
35
FMCPAY
LINK-BTC$24.25
0.0075490 Eth
$1,509,857.00
62,947.400 LINK
0.3265%
36
Kraken
LINK-EUR$24.26
0.0075506 Eth
$1,454,021.00
59,935.487 LINK
0.3108%
37
EarnBIT
LINK-USDT$24.24
0.0075483 Eth
$1,368,862.00
58,910.511 LINK
0.3055%
38
OKX
LINK-USDC$24.22
0.0075385 Eth
$1,337,312.00
57,293.401 LINK
0.2971%
39
Binance
LINK-ETH$24.36
0.0075736 Eth
$1,323,279.00
54,708.680 LINK
0.2837%
40
Tokpie
LINK-USDT$24.47
0.0076138 Eth
$1,299,625.00
53,113.623 LINK
0.2755%
41
EXMO
LINK-USDT$24.29
0.0075583 Eth
$1,273,262.00
52,427.989 LINK
0.2719%
42
Binance
LINK-TRY$24.24
0.0075432 Eth
$1,233,071.00
52,296.580 LINK
0.2712%
43
Bitbank
LINK-JPY$24.34
0.0075776 Eth
$1,223,279.00
50,260.637 LINK
0.2607%
44
tanX
LINK-USDC$24.24
0.0075481 Eth
$1,186,109.00
49,923.240 LINK
0.2589%
45
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.23
0.0075448 Eth
$1,090,877.00
45,141.562 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2341%
46
WhiteBIT
LINK-BTC$24.26
0.0075548 Eth
$1,079,405.00
44,502.300 LINK
0.2308%
47
BigONE
LINK-USDT$24.50
0.0075947 Eth
$1,067,695.00
43,582.230 LINK
0.2260%
48
BitStorage
LINK-USDT$24.25
0.0075489 Eth
$1,000,270.00
41,255.870 LINK
0.2140%
49
WhiteBIT
LINK-EUR$24.25
0.0075456 Eth
$953,045.00
39,308.480 LINK
0.2039%
50
Binance
LINK-EUR$24.30
0.0075567 Eth
$933,569.00
39,828.740 LINK
0.2066%
51
Coinbase Exchange
LINK-USDT$24.27
0.0075558 Eth
$908,016.00
37,417.317 LINK
0.1940%
52
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$24.18
0.0075296 Eth
$904,788.00
74,291.571 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.3853%
53
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$24.20
0.0075311 Eth
$876,362.00
37,460.626 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1943%
54
Trubit
LINK-USDT$24.21
0.0075377 Eth
$866,713.00
36,605.570 LINK
0.1898%
55
QMall
LINK-USDC$24.26
0.0075511 Eth
$834,341.00
35,244.469 LINK
0.1828%
56
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$24.27
0.0075552 Eth
$782,468.00
32,423.857 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1682%
57
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$24.23
0.0075448 Eth
$772,978.00
751,665.051 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
3.8982%
58
Bybit
LINK-USDC$24.28
0.0075552 Eth
$769,568.00
32,884.748 LINK
0.1705%
59
Gemini
LINK-USD$24.28
0.0075576 Eth
$747,262.00
30,773.867 LINK
0.1596%
60
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.26
0.0075499 Eth
$680,156.00
27,930.581 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1449%
61
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.25
0.0075491 Eth
$566,485.00
23,394.512 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1213%
62
LATOKEN
LINK-BTC$24.26
0.0075523 Eth
$557,685.00
22,991.606 LINK
0.1192%
63
itBit
LINK-USD$24.20
0.0075348 Eth
$557,557.00
23,039.531 LINK
0.1195%
64
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$24.23
0.0075448 Eth
$517,058.00
21,979.320 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1140%
65
Coinbase Exchange
LINK-BTC$24.26
0.0075489 Eth
$462,328.00
19,060.490 LINK
0.0988%
66
Coinbase Exchange
LINK-ETH$24.22
0.0075421 Eth
$444,771.00
18,360.240 LINK
0.0952%
67
XT.COM
LINK-ETH$24.23
0.0075443 Eth
$370,188.00
15,348.280 LINK
0.0796%
68
ProBit Global
LINK-USDT$24.29
0.0075606 Eth
$362,216.00
14,913.872 LINK
0.0773%
69
HashKey Exchange
LINK-USD$24.29
0.0075557 Eth
$354,324.00
14,856.207 LINK
0.0770%
70
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$24.26
0.0075529 Eth
$306,029.00
13,021.156 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0675%
71
Slex
LINK-ETH$24.23
0.0075431 Eth
$301,268.00
12,410.740 LINK
0.0644%
72
BitMart
LINK-BTC$24.23
0.0075415 Eth
$286,902.00
11,840.460 LINK
0.0614%
73
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$24.24
0.0075477 Eth
$279,767.00
11,549.958 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0599%
74
bitcastle
LINK-USDT$24.30
0.0075544 Eth
$269,314.00
11,394.470 LINK
0.0591%
75
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$24.21
0.0075352 Eth
$256,203.00
10,791.164 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0560%
76
Hotcoin
LINK-BTC$24.26
0.0075497 Eth
$255,670.00
10,540.030 LINK
0.0547%
77
Bitso
LINK-USD$24.26
0.0075521 Eth
$243,395.00
10,034.494 LINK
0.0520%
78
BitStorage
LINK-ETH$24.21
0.0075355 Eth
$241,596.00
9,978.090 LINK
0.0517%
79
Bitci TR
LINK-TRY$24.37
0.0075883 Eth
$227,676.00
9,565.573 LINK
0.0496%
80
PointPay
LINK-BTC$24.27
0.0075530 Eth
$215,877.00
9,041.924 LINK
0.0469%
81
KuCoin
LINK-USDC$24.24
0.0075444 Eth
$212,709.00
8,775.159 LINK
0.0455%
82
BYDFi
LINK-USDC$24.25
0.0075417 Eth
$204,872.00
8,449.430 LINK
0.0438%
83
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$24.21
0.0075343 Eth
$195,660.00
188,698.109 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.9786%
84
Mercado Bitcoin
LINK-BRL$24.12
0.0075083 Eth
$189,620.00
7,860.233 LINK
0.0408%
85
Kraken
LINK-GBP$24.25
0.0075476 Eth
$175,547.00
7,238.934 LINK
0.0375%
86
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$24.25
0.0075460 Eth
$168,585.00
163,232.545 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.8465%
87
Bitkub
LINK-THB$24.42
0.0076014 Eth
$160,231.00
6,562.666 LINK
0.0340%
88
CoinTR
LINK-TRY$24.23
0.0075463 Eth
$159,463.00
6,729.360 LINK
0.0349%
89
Kraken
LINK-USDC$24.31
0.0075663 Eth
$142,985.00
5,881.686 LINK
0.0305%
90
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$24.29
0.0075591 Eth
$118,426.00
4,833.275 0X5947BB275C521040051D82396192181B413227A3
0.0251%
91
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$24.24
0.0075424 Eth
$115,459.00
4,841.560 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0251%
92
BitMart
LINK-ETH$24.21
0.0075343 Eth
$95,332.00
3,938.120 LINK
0.0204%
93
Binance US
LINK-USDT$24.24
0.0075421 Eth
$90,477.00
3,732.848 LINK
0.0194%
94
CoinEx
LINK-BTC$24.22
0.0075369 Eth
$88,881.00
3,788.643 LINK
0.0196%
95
Hotcoin
LINK-ETH$24.23
0.0075415 Eth
$75,556.00
3,118.190 LINK
0.0162%
96
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$24.24
0.0075471 Eth
$65,081.00
2,769.494 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0144%
97
THENA FUSION
0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD$24.32
0.0075729 Eth
$63,727.00
84.307 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827
0.0004%
98
Nonkyc.io
LINK-BTC$24.36
0.0075813 Eth
$63,081.00
2,625.325 LINK
0.0136%
99
Dex-Trade
LINK-ETH$24.21
0.0075343 Eth
$38,547.00
1,592.360 LINK
0.0083%
100
Ace
LINK-USDT$24.39
0.0075970 Eth
$5,621.77
238.040 LINK
0.0012%

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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