ETH Price: $3,353.84 (+0.39%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

728,562 ( 0.023%)

Market

Price

$21.75 @ 0.006485 ETH (+9.02%)

Onchain Market Cap

$21,750,000,000.00

Circulating Supply Market Cap

$13,707,809,622.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0xa3a8e66bfcc7a14b7b7fb95c04a74a3fe5d0d4eb
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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 19672.73% |ETH 0.0003846 1586.17%

Market

Volume (24H):$862,974,929.00
Market Capitalization:$13,707,809,622.00
Circulating Supply:631,099,972.00 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$21.74
0.0064828 Eth
$95,811,002.00
4,693,411.760 LINK
21.4969%
2
Coinbase Exchange
LINK-USD$21.75
0.0064819 Eth
$40,480,442.00
1,861,512.080 LINK
8.5261%
3
WhiteBIT
LINK-USDT$21.74
0.0064810 Eth
$23,489,354.00
1,080,704.720 LINK
4.9499%
4
Bitget
LINK-USDT$21.74
0.0064798 Eth
$21,361,912.00
1,045,126.754 LINK
4.7869%
5
Slex
LINK-USDT$21.73
0.0064767 Eth
$20,314,567.00
1,005,124.740 LINK
4.6037%
6
Bybit
LINK-USDT$21.73
0.0064777 Eth
$19,008,978.00
929,530.922 LINK
4.2575%
7
CoinW
LINK-USDT$21.74
0.0064815 Eth
$18,128,752.00
834,015.240 LINK
3.8200%
8
MEXC
LINK-USDT$21.74
0.0064799 Eth
$17,091,260.00
786,306.340 LINK
3.6015%
9
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$21.69
0.0064636 Eth
$15,461,474.00
743,694.679 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.4063%
10
DigiFinex
LINK-USDT$21.74
0.0064811 Eth
$12,733,062.00
585,718.980 LINK
2.6827%
11
OKX
LINK-USDT$21.72
0.0064751 Eth
$12,122,171.00
594,933.717 LINK
2.7249%
12
XT.COM
LINK-USDT$21.73
0.0064764 Eth
$9,556,202.00
468,037.320 LINK
2.1437%
13
Azbit
LINK-USDT$21.75
0.0064836 Eth
$9,519,200.00
466,137.446 LINK
2.1350%
14
P2B
LINK-USDT$21.73
0.0064760 Eth
$9,272,411.00
426,760.700 LINK
1.9547%
15
Binance
LINK-BTC$21.74
0.0064926 Eth
$9,096,015.00
429,704.220 LINK
1.9681%
16
Coinstore
LINK-USDT$21.76
0.0064851 Eth
$8,475,490.00
415,921.110 LINK
1.9050%
17
Binance
LINK-FDUSD$21.74
0.0064799 Eth
$8,305,024.00
406,358.950 LINK
1.8612%
18
HTX
LINK-USDT$21.74
0.0064822 Eth
$7,942,786.00
393,565.453 LINK
1.8026%
19
Bitunix
LINK-USDT$21.73
0.0064808 Eth
$7,888,251.00
363,021.940 LINK
1.6627%
20
BYDFi
LINK-USDT$21.77
0.0064948 Eth
$6,363,517.00
292,358.410 LINK
1.3391%
21
Biconomy.com
LINK-USDT$21.73
0.0064923 Eth
$5,480,057.00
270,686.249 LINK
1.2398%
22
LBank
LINK-USDT$21.77
0.0064948 Eth
$5,006,572.00
230,016.410 LINK
1.0535%
23
Binance
LINK-USDC$21.74
0.0064813 Eth
$4,899,843.00
240,401.560 LINK
1.1011%
24
LATOKEN
LINK-USDT$21.75
0.0064848 Eth
$4,636,288.00
213,184.295 LINK
0.9764%
25
KuCoin
LINK-USDT$21.74
0.0064818 Eth
$4,563,075.00
209,878.602 LINK
0.9613%
26
BTSE
LINK-USDT$21.72
0.0064895 Eth
$4,315,478.00
198,649.181 LINK
0.9099%
27
Kraken
LINK-USD$21.74
0.0064820 Eth
$3,636,585.00
167,250.465 LINK
0.7660%
28
Dex-Trade
LINK-USDT$21.71
0.0064788 Eth
$3,264,866.00
150,366.486 LINK
0.6887%
29
Bitvavo
LINK-EUR$21.78
0.0064961 Eth
$2,705,336.00
124,238.543 LINK
0.5690%
30
CoinEx
LINK-USDT$21.76
0.0064884 Eth
$2,434,082.00
118,820.187 LINK
0.5442%
31
Hotcoin
LINK-USDT$21.73
0.0064905 Eth
$2,388,991.00
109,934.990 LINK
0.5035%
32
Dcoin
LINK-USDT$21.77
0.0064891 Eth
$2,022,251.00
92,874.000 LINK
0.4254%
33
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$21.76
0.0064866 Eth
$1,913,324.00
91,829.823 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4206%
34
PointPay
LINK-USDT$21.74
0.0064797 Eth
$1,531,362.00
74,921.050 LINK
0.3432%
35
EXMO
LINK-USDT$21.73
0.0064781 Eth
$1,277,431.00
58,778.008 LINK
0.2692%
36
Coinbase Exchange
LINK-EUR$21.76
0.0064871 Eth
$1,269,708.00
58,362.150 LINK
0.2673%
37
Bitstamp
LINK-EUR$21.77
0.0064888 Eth
$1,247,700.00
57,323.300 LINK
0.2626%
38
Kraken
LINK-EUR$21.77
0.0064912 Eth
$1,232,802.00
56,617.242 LINK
0.2593%
39
Phemex
LINK-USDT$21.72
0.0064733 Eth
$1,126,127.00
51,854.220 LINK
0.2375%
40
WhiteBIT
LINK-BTC$21.76
0.0064980 Eth
$1,086,308.00
49,922.700 LINK
0.2287%
41
tanX
LINK-USDC$21.77
0.0064902 Eth
$1,052,191.00
51,648.500 LINK
0.2366%
42
Binance
LINK-TRY$21.79
0.0065097 Eth
$873,476.00
42,351.990 LINK
0.1940%
43
Bybit
LINK-USDC$21.74
0.0064823 Eth
$856,188.00
41,890.972 LINK
0.1919%
44
WhiteBIT
LINK-TRY$21.78
0.0064925 Eth
$849,853.00
39,013.500 LINK
0.1787%
45
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$21.77
0.0064896 Eth
$836,112.00
40,488.779 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1854%
46
BitStorage
LINK-USDT$21.72
0.0064742 Eth
$811,559.00
37,357.330 LINK
0.1711%
47
Binance
LINK-EUR$21.75
0.0064939 Eth
$808,529.00
39,688.950 LINK
0.1818%
48
Gemini
LINK-USD$21.79
0.0064953 Eth
$783,570.00
35,965.129 LINK
0.1647%
49
Bitbank
LINK-JPY$21.76
0.0064843 Eth
$765,423.00
35,179.021 LINK
0.1611%
50
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$21.69
0.0064636 Eth
$739,918.00
52,149.078 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2389%
51
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$21.63
0.0064462 Eth
$643,615.00
30,787.088 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.1410%
52
Bitstamp
LINK-USD$21.74
0.0064810 Eth
$641,324.00
29,499.714 LINK
0.1351%
53
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$21.74
0.0064819 Eth
$640,176.00
30,203.771 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1383%
54
EarnBIT
LINK-USDT$21.74
0.0064821 Eth
$581,755.00
28,547.730 LINK
0.1308%
55
Coinbase Exchange
LINK-USDT$21.73
0.0064790 Eth
$546,488.00
25,145.420 LINK
0.1152%
56
Koinpark
LINK-USDT$21.76
0.0064878 Eth
$523,195.00
24,046.325 LINK
0.1101%
57
GMO Japan
LINK-JPY$21.70
0.0064792 Eth
$522,634.00
24,089.200 LINK
0.1103%
58
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$21.69
0.0064634 Eth
$517,268.00
25,219.368 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1155%
59
HashKey Exchange
LINK-USD$21.82
0.0065057 Eth
$512,673.00
25,284.258 LINK
0.1158%
60
Slex
LINK-BTC$21.76
0.0064866 Eth
$508,800.00
23,986.700 LINK
0.1099%
61
Coinbase Exchange
LINK-BTC$21.73
0.0064788 Eth
$492,684.00
22,670.540 LINK
0.1038%
62
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$21.79
0.0064961 Eth
$486,544.00
23,261.667 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1065%
63
Kraken
LINK-ETH$21.76
0.0064859 Eth
$483,796.00
22,237.033 LINK
0.1019%
64
itBit
LINK-USD$21.72
0.0064730 Eth
$470,083.00
21,642.847 LINK
0.0991%
65
LATOKEN
LINK-BTC$21.70
0.0064790 Eth
$423,223.00
19,502.237 LINK
0.0893%
66
Bitbegin
LINK-USDT$21.74
0.0064797 Eth
$410,480.00
20,266.739 LINK
0.0928%
67
BigONE
LINK-USDT$21.78
0.0065014 Eth
$374,290.00
17,185.700 LINK
0.0787%
68
Coinbase Exchange
LINK-ETH$21.75
0.0064846 Eth
$369,354.00
16,980.140 LINK
0.0778%
69
WhiteBIT
LINK-EUR$21.70
0.0064678 Eth
$366,504.00
16,892.980 LINK
0.0774%
70
KuCoin
LINK-USDC$21.70
0.0064705 Eth
$363,192.00
16,734.150 LINK
0.0766%
71
Slex
LINK-ETH$21.73
0.0064774 Eth
$354,328.00
17,450.790 LINK
0.0799%
72
PointPay
LINK-BTC$21.74
0.0064808 Eth
$350,055.00
16,483.646 LINK
0.0755%
73
BitMart
LINK-BTC$21.74
0.0064822 Eth
$340,794.00
15,672.760 LINK
0.0718%
74
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$21.71
0.0064711 Eth
$319,648.00
15,639.442 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0716%
75
Dex-Trade
LINK-BTC$21.76
0.0064856 Eth
$318,624.00
14,642.900 LINK
0.0671%
76
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$21.77
0.0064896 Eth
$302,537.00
283,471.496 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.2984%
77
Coinbase Exchange
LINK-GBP$21.73
0.0064787 Eth
$290,582.00
13,373.870 LINK
0.0613%
78
XT.COM
LINK-BTC$21.74
0.0064806 Eth
$228,082.00
10,766.160 LINK
0.0493%
79
BitDelta
LINK-USDT$21.74
0.0064798 Eth
$217,104.00
10,719.000 LINK
0.0491%
80
BitStorage
LINK-ETH$21.74
0.0064787 Eth
$191,835.00
8,824.350 LINK
0.0404%
81
EXMO
LINK-BTC$21.76
0.0064861 Eth
$186,703.00
8,580.147 LINK
0.0393%
82
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$21.74
0.0064799 Eth
$183,605.00
8,917.817 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0408%
83
OKX
LINK-USDC$21.75
0.0064833 Eth
$148,977.00
7,256.713 LINK
0.0332%
84
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$21.58
0.0064325 Eth
$142,448.00
6,869.671 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0315%
85
Bitso
LINK-USD$21.74
0.0064927 Eth
$136,942.00
6,300.425 LINK
0.0289%
86
BTCMarkets
LINK-AUD$21.58
0.0064480 Eth
$119,177.00
5,522.811 LINK
0.0253%
87
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$21.74
0.0064825 Eth
$117,802.00
5,388.392 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0247%
88
Bitkub
LINK-THB$21.58
0.0064434 Eth
$110,111.00
5,102.028 LINK
0.0234%
89
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$21.79
0.0064952 Eth
$109,147.00
5,147.717 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0236%
90
Binance US
LINK-USDT$21.76
0.0064854 Eth
$99,255.00
4,561.838 LINK
0.0209%
91
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$21.86
0.0065186 Eth
$97,942.00
4,725.024 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0216%
92
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$21.76
0.0064868 Eth
$94,864.00
4,652.956 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0213%
93
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$21.78
0.0064932 Eth
$91,589.00
4,392.298 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0201%
94
Foxbit
LINK-BRL$21.81
0.0065023 Eth
$79,195.00
3,768.587 LINK
0.0173%
95
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$21.69
0.0064640 Eth
$73,477.00
5,251.847 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.0241%
96
Bitstamp
LINK-GBP$21.61
0.0064437 Eth
$66,824.00
3,091.584 LINK
0.0142%
97
PancakeSwap (v2)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$21.68
0.0064645 Eth
$62,997.00
3,062.804 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0140%
98
Kraken
LINK-GBP$21.75
0.0064848 Eth
$60,374.00
2,775.492 LINK
0.0127%
99
zondacrypto
LINK-PLN$21.77
0.0064907 Eth
$34,676.00
1,592.653 LINK
0.0073%
100
Dex-Trade
LINK-ETH$21.74
0.0064784 Eth
$26,269.00
1,208.580 LINK
0.0055%

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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