ETH Price: $3,603.48 (+4.56%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

729,292 ( 0.036%)

Market

Price

$23.38 @ 0.006488 ETH (+6.03%)

Onchain Market Cap

$23,380,000,000.00

Circulating Supply Market Cap

$14,745,258,876.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
9.3 LINK

Value
$217.43 ( ~0.0603389714625024 Eth) [0.0000%]
0x2d9Dbb06eF530d041bCF1802522e2Ad36416D6aD
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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 21154.55% |ETH 0.0003846 1586.95%

Market

Volume (24H):$1,224,606,285.00
Market Capitalization:$14,745,258,876.00
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$23.36
0.0064790 Eth
$142,141,160.00
6,260,887.290 LINK
22.7952%
2
Coinbase Exchange
LINK-USD$23.45
0.0065019 Eth
$47,339,595.00
2,018,918.260 LINK
7.3507%
3
Upbit
LINK-KRW$23.55
0.0065328 Eth
$35,371,918.00
1,502,200.514 LINK
5.4693%
4
Bitget
LINK-USDT$23.47
0.0065114 Eth
$31,813,172.00
1,393,634.316 LINK
5.0741%
5
MEXC
LINK-USDT$23.46
0.0065054 Eth
$28,218,881.00
1,202,739.710 LINK
4.3790%
6
CoinW
LINK-USDT$23.47
0.0065061 Eth
$26,685,260.00
1,137,041.710 LINK
4.1398%
7
Bybit
LINK-USDT$23.48
0.0065101 Eth
$26,663,550.00
1,169,393.074 LINK
4.2576%
8
OKX
LINK-USDT$23.46
0.0065033 Eth
$21,948,437.00
962,621.582 LINK
3.5048%
9
Slex
LINK-USDT$23.37
0.0064810 Eth
$21,907,214.00
965,277.640 LINK
3.5145%
10
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.52
0.0065195 Eth
$21,133,746.00
902,633.325 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.2864%
11
DigiFinex
LINK-USDT$23.44
0.0065032 Eth
$18,906,116.00
806,569.620 LINK
2.9366%
12
XT.COM
LINK-USDT$23.46
0.0065054 Eth
$14,254,564.00
627,591.210 LINK
2.2850%
13
FameEX
LINK-USDT$23.46
0.0065040 Eth
$14,252,967.00
627,639.047 LINK
2.2852%
14
Coinstore
LINK-USDT$23.35
0.0064785 Eth
$12,657,584.00
557,503.630 LINK
2.0298%
15
Bitunix
LINK-USDT$23.46
0.0065050 Eth
$11,343,820.00
483,335.430 LINK
1.7598%
16
Binance
LINK-FDUSD$23.35
0.0064782 Eth
$9,475,491.00
414,888.990 LINK
1.5106%
17
BYDFi
LINK-USDT$23.35
0.0064768 Eth
$9,420,636.00
403,436.000 LINK
1.4689%
18
HTX
LINK-USDT$23.46
0.0065043 Eth
$9,395,234.00
413,346.413 LINK
1.5049%
19
Biconomy.com
LINK-USDT$23.46
0.0065042 Eth
$8,134,593.00
357,371.650 LINK
1.3012%
20
Kraken
LINK-USD$23.47
0.0065075 Eth
$8,120,012.00
345,918.067 LINK
1.2594%
21
Bithumb
LINK-KRW$23.59
0.0065441 Eth
$7,663,521.00
324,895.629 LINK
1.1829%
22
LBank
LINK-USDT$23.48
0.0065066 Eth
$7,309,199.00
311,244.300 LINK
1.1332%
23
LATOKEN
LINK-USDT$23.46
0.0065032 Eth
$6,921,538.00
295,042.222 LINK
1.0742%
24
Binance
LINK-USDC$23.38
0.0064847 Eth
$6,416,815.00
280,422.970 LINK
1.0210%
25
QMall
LINK-USDT$23.36
0.0064787 Eth
$5,863,107.00
258,184.295 LINK
0.9400%
26
Dex-Trade
LINK-USDT$23.46
0.0065036 Eth
$4,750,132.00
202,479.010 LINK
0.7372%
27
Hotcoin
LINK-USDT$23.47
0.0065062 Eth
$3,667,790.00
156,280.180 LINK
0.5690%
28
KuCoin
LINK-USDT$23.45
0.0065001 Eth
$3,542,442.00
151,082.143 LINK
0.5501%
29
FMCPAY
LINK-USDT$23.45
0.0065026 Eth
$3,520,511.00
154,249.108 LINK
0.5616%
30
CoinEx
LINK-USDT$23.47
0.0065069 Eth
$3,176,603.00
137,485.674 LINK
0.5006%
31
Bitvavo
LINK-EUR$23.48
0.0065079 Eth
$2,187,389.00
93,173.930 LINK
0.3392%
32
PointPay
LINK-USDT$23.46
0.0065050 Eth
$2,184,261.00
95,971.828 LINK
0.3494%
33
Dcoin
LINK-USDT$23.47
0.0065089 Eth
$2,166,276.00
92,301.000 LINK
0.3361%
34
EXMO
LINK-USDT$23.44
0.0064992 Eth
$2,045,420.00
87,268.397 LINK
0.3177%
35
ProBit Global
LINK-USDT$23.38
0.0064842 Eth
$1,675,791.00
71,683.698 LINK
0.2610%
36
Phemex
LINK-USDT$23.47
0.0065077 Eth
$1,575,550.00
67,126.590 LINK
0.2444%
37
FMCPAY
LINK-ETH$23.45
0.0065033 Eth
$1,545,804.00
66,193.760 LINK
0.2410%
38
Kraken
LINK-EUR$23.52
0.0065192 Eth
$1,498,451.00
63,719.889 LINK
0.2320%
39
FMCPAY
LINK-BTC$23.46
0.0065043 Eth
$1,496,918.00
65,215.700 LINK
0.2374%
40
Coinbase Exchange
LINK-EUR$23.46
0.0065055 Eth
$1,479,783.00
63,074.330 LINK
0.2296%
41
Bybit
LINK-USDC$23.49
0.0065108 Eth
$1,202,218.00
52,346.056 LINK
0.1906%
42
BitStorage
LINK-USDT$23.46
0.0065086 Eth
$1,186,386.00
50,571.120 LINK
0.1841%
43
Kraken
LINK-USDT$23.47
0.0065073 Eth
$1,133,829.00
48,302.754 LINK
0.1759%
44
WhiteBIT
LINK-BTC$23.46
0.0065033 Eth
$1,081,452.00
46,100.070 LINK
0.1678%
45
EarnBIT
LINK-USDT$23.46
0.0065027 Eth
$1,035,780.00
45,429.777 LINK
0.1654%
46
Bitbank
LINK-JPY$23.44
0.0064983 Eth
$976,514.00
41,658.208 LINK
0.1517%
47
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.34
0.0064725 Eth
$948,461.00
40,574.808 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1477%
48
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.47
0.0065076 Eth
$877,338.00
37,272.023 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1357%
49
Gemini
LINK-USD$23.48
0.0065132 Eth
$828,240.00
35,279.831 LINK
0.1285%
50
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.35
0.0064751 Eth
$769,840.00
32,880.407 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1197%
51
Binance
LINK-EUR$23.31
0.0064662 Eth
$768,595.00
33,818.230 LINK
0.1231%
52
Koinpark
LINK-USDT$23.46
0.0065054 Eth
$756,719.00
32,252.721 LINK
0.1174%
53
WhiteBIT
LINK-TRY$23.45
0.0065013 Eth
$756,377.00
32,252.640 LINK
0.1174%
54
Coinbase Exchange
LINK-GBP$23.47
0.0065055 Eth
$743,104.00
31,665.880 LINK
0.1153%
55
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$23.36
0.0064753 Eth
$679,739.00
45,349.940 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1651%
56
itBit
LINK-USD$23.45
0.0065013 Eth
$655,396.00
27,948.648 LINK
0.1018%
57
Binance
LINK-TRY$23.46
0.0064996 Eth
$618,485.00
27,028.260 LINK
0.0984%
58
ProBit Global
LINK-BTC$23.37
0.0064801 Eth
$613,084.00
26,234.736 LINK
0.0955%
59
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$23.50
0.0065132 Eth
$582,098.00
25,201.171 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0918%
60
BigONE
LINK-USDT$23.37
0.0064819 Eth
$565,866.00
24,216.770 LINK
0.0882%
61
Coinbase Exchange
LINK-ETH$23.44
0.0064981 Eth
$513,301.00
21,900.010 LINK
0.0797%
62
GMO Japan
LINK-JPY$23.37
0.0064828 Eth
$497,345.00
21,279.300 LINK
0.0775%
63
Bitbegin
LINK-USDT$23.47
0.0065048 Eth
$478,017.00
21,047.694 LINK
0.0766%
64
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.48
0.0065118 Eth
$442,345.00
423,364.107 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.5414%
65
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.46
0.0065050 Eth
$438,583.00
18,740.896 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0682%
66
HashKey Exchange
LINK-USD$23.51
0.0065190 Eth
$436,162.00
19,443.757 LINK
0.0708%
67
Slex
LINK-ETH$23.46
0.0065040 Eth
$429,936.00
18,424.920 LINK
0.0671%
68
Coinbase Exchange
LINK-BTC$23.46
0.0065056 Eth
$429,645.00
18,311.780 LINK
0.0667%
69
Coinbase Exchange
LINK-USDT$23.48
0.0065091 Eth
$421,905.00
17,968.784 LINK
0.0654%
70
Bitkub
LINK-THB$23.29
0.0064585 Eth
$370,674.00
15,913.444 LINK
0.0579%
71
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.51
0.0065188 Eth
$306,265.00
296,732.323 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.0804%
72
BitMart
LINK-BTC$23.47
0.0065073 Eth
$286,910.00
12,222.320 LINK
0.0445%
73
OKX
LINK-USDC$23.47
0.0065062 Eth
$267,553.00
11,697.954 LINK
0.0426%
74
BTCMarkets
LINK-AUD$23.25
0.0064509 Eth
$260,436.00
11,200.769 LINK
0.0408%
75
KuCoin
LINK-USDC$23.36
0.0064754 Eth
$259,055.00
11,090.511 LINK
0.0404%
76
LATOKEN
LINK-BTC$23.36
0.0064780 Eth
$246,981.00
10,573.408 LINK
0.0385%
77
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.50
0.0065164 Eth
$245,843.00
10,790.084 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0393%
78
Bitci TR
LINK-TRY$23.55
0.0065283 Eth
$230,283.00
10,145.660 LINK
0.0369%
79
Coinone
LINK-KRW$23.66
0.0065630 Eth
$209,473.00
8,855.014 LINK
0.0322%
80
PointPay
LINK-BTC$23.36
0.0064787 Eth
$191,722.00
8,315.184 LINK
0.0303%
81
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.57
0.0065352 Eth
$188,335.00
8,011.756 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0292%
82
BitStorage
LINK-ETH$23.45
0.0065020 Eth
$179,920.00
7,672.240 LINK
0.0279%
83
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$23.49
0.0065109 Eth
$165,889.00
7,100.726 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0259%
84
Binance US
LINK-USDT$23.52
0.0065216 Eth
$146,263.00
6,218.323 LINK
0.0226%
85
Bitso
LINK-USD$23.48
0.0065097 Eth
$135,048.00
5,750.873 LINK
0.0209%
86
Hotcoin
LINK-BTC$23.37
0.0064818 Eth
$131,971.00
5,647.820 LINK
0.0206%
87
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.45
0.0065010 Eth
$131,646.00
5,630.643 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0205%
88
EXMO
LINK-BTC$23.47
0.0065094 Eth
$125,448.00
5,343.920 LINK
0.0195%
89
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.49
0.0065140 Eth
$124,995.00
5,479.330 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0199%
90
CoinEx
LINK-BTC$23.37
0.0064787 Eth
$100,500.00
4,282.262 LINK
0.0156%
91
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.50
0.0065152 Eth
$96,546.00
4,308.035 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0157%
92
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.49
0.0065130 Eth
$93,980.00
4,124.296 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0150%
93
BitMart
LINK-ETH$23.45
0.0065048 Eth
$88,792.00
3,787.120 LINK
0.0138%
94
Mercado Bitcoin
LINK-BRL$23.54
0.0065269 Eth
$84,201.00
3,577.245 LINK
0.0130%
95
Independent Reserve
LINK-AUD$23.41
0.0064910 Eth
$64,395.00
2,750.711 LINK
0.0100%
96
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$23.34
0.0064725 Eth
$64,112.00
63,148.604 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.2299%
97
PancakeSwap (v2)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$23.46
0.0065099 Eth
$60,336.00
2,603.881 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0095%
98
Coins.ph
LINK-PHP$23.52
0.0065206 Eth
$58,858.00
2,580.029 LINK
0.0094%
99
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.38
0.0064830 Eth
$55,294.00
2,368.374 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0086%
100
Dex-Trade
LINK-ETH$23.45
0.0065030 Eth
$22,859.00
974.630 LINK
0.0035%

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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