ETH Price: $3,887.41 (-0.66%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

725,275 (0.00%)

Market

Price

$29.22 @ 0.007517 ETH (-1.62%)

Onchain Market Cap

$29,220,000,000.00

Circulating Supply Market Cap

$18,382,329,322.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
4.29191335 LINK

Value
$125.41 ( ~0.0322605448366857 Eth) [0.0000%]
0x248e6f295b95cd98f2da16a20429c0b2fe83bd79
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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 26463.64% |ETH 0.0003846 1854.5%

Market

Volume (24H):$2,857,215,712.00
Market Capitalization:$18,382,329,322.00
Circulating Supply:626,849,971.00 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$29.29
0.0075360 Eth
$277,757,767.00
9,367,266.510 LINK
22.4832%
2
Coinbase Exchange
LINK-USD$29.26
0.0075283 Eth
$115,946,277.00
3,962,485.100 LINK
9.5107%
3
Bitget
LINK-USDT$29.21
0.0075154 Eth
$87,807,492.00
2,968,413.902 LINK
7.1247%
4
Bybit
LINK-USDT$29.23
0.0075215 Eth
$74,136,866.00
2,505,994.726 LINK
6.0149%
5
Gate.io
LINK-USDT$29.30
0.0075386 Eth
$60,611,960.00
2,041,806.320 LINK
4.9007%
6
OKX
LINK-USDT$29.22
0.0075182 Eth
$57,903,706.00
1,954,275.381 LINK
4.6906%
7
P2B
LINK-USDT$29.29
0.0075360 Eth
$57,530,361.00
1,964,109.270 LINK
4.7142%
8
DigiFinex
LINK-USDT$29.29
0.0075366 Eth
$37,261,143.00
1,271,999.920 LINK
3.0530%
9
Ourbit
LINK-USDT$29.31
0.0075410 Eth
$35,570,054.00
1,199,978.180 LINK
2.8802%
10
Deepcoin
LINK-USDT$29.24
0.0075227 Eth
$35,044,425.00
1,249,135.491 LINK
2.9982%
11
Slex
LINK-USDT$29.23
0.0075208 Eth
$29,534,822.00
999,486.070 LINK
2.3990%
12
Bithumb
LINK-KRW$29.28
0.0075333 Eth
$28,929,901.00
988,042.517 LINK
2.3715%
13
XT.COM
LINK-USDT$29.25
0.0075257 Eth
$27,774,460.00
936,638.470 LINK
2.2481%
14
CoinW
LINK-USDT$29.32
0.0075428 Eth
$22,124,060.00
754,639.050 LINK
1.8113%
15
Binance
LINK-FDUSD$29.25
0.0075251 Eth
$20,078,291.00
677,422.050 LINK
1.6259%
16
HTX
LINK-USDT$29.23
0.0075202 Eth
$17,656,989.00
597,498.263 LINK
1.4341%
17
BTSE
LINK-USDT$29.22
0.0075180 Eth
$16,953,865.00
580,196.950 LINK
1.3926%
18
Biconomy.com
LINK-USDT$29.27
0.0075296 Eth
$16,844,225.00
568,446.970 LINK
1.3644%
19
BYDFi
LINK-USDT$29.30
0.0075388 Eth
$15,365,794.00
524,418.420 LINK
1.2587%
20
Kraken
LINK-USD$29.23
0.0075195 Eth
$14,449,513.00
494,388.842 LINK
1.1866%
21
Azbit
LINK-USDT$29.35
0.0075383 Eth
$14,056,596.00
475,898.740 LINK
1.1422%
22
KuCoin
LINK-USDT$29.26
0.0075279 Eth
$13,560,563.00
463,458.072 LINK
1.1124%
23
Coinbase Exchange
LINK-EUR$29.22
0.0075169 Eth
$9,085,343.00
310,965.630 LINK
0.7464%
24
Dex-Trade
LINK-USDT$29.31
0.0075415 Eth
$9,074,335.00
309,593.293 LINK
0.7431%
25
Binance
LINK-USDC$29.19
0.0075163 Eth
$8,607,511.00
290,863.050 LINK
0.6981%
26
LBank
LINK-USDT$29.23
0.0075207 Eth
$6,745,080.00
230,745.910 LINK
0.5538%
27
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$29.27
0.0075308 Eth
$6,299,707.00
213,496.585 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5124%
28
CoinEx
LINK-USDT$29.27
0.0075309 Eth
$6,042,026.00
203,668.630 LINK
0.4888%
29
Binance
LINK-TRY$29.40
0.0075649 Eth
$5,604,142.00
187,420.550 LINK
0.4498%
30
PointPay
LINK-USDT$29.37
0.0075405 Eth
$4,492,522.00
151,405.794 LINK
0.3634%
31
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$29.33
0.0075461 Eth
$4,107,340.00
138,511.739 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.3325%
32
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$29.30
0.0075398 Eth
$4,094,618.00
138,392.171 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.3322%
33
Dcoin
LINK-USDT$29.28
0.0075341 Eth
$4,032,492.00
137,709.000 LINK
0.3305%
34
EXMO
LINK-USDT$29.21
0.0075145 Eth
$3,913,323.00
133,984.637 LINK
0.3216%
35
WhiteBIT
LINK-TRY$29.47
0.0075881 Eth
$3,908,587.00
132,620.220 LINK
0.3183%
36
Hotcoin
LINK-USDT$29.52
0.0075934 Eth
$3,680,109.00
124,670.514 LINK
0.2992%
37
Bitbank
LINK-JPY$29.30
0.0075393 Eth
$3,140,112.00
107,157.622 LINK
0.2572%
38
Bitstamp
LINK-EUR$29.34
0.0075493 Eth
$2,821,020.00
96,140.854 LINK
0.2308%
39
Phemex
LINK-USDT$29.22
0.0075181 Eth
$2,816,454.00
96,386.460 LINK
0.2313%
40
EarnBIT
LINK-USDT$29.28
0.0075339 Eth
$2,730,828.00
92,231.845 LINK
0.2214%
41
Bitstamp
LINK-USD$29.25
0.0075255 Eth
$2,664,240.00
91,085.144 LINK
0.2186%
42
Tapbit
LINK-USDT$29.26
0.0075282 Eth
$2,514,444.00
84,783.520 LINK
0.2035%
43
OKX
LINK-USDC$29.27
0.0075315 Eth
$2,322,919.00
78,410.167 LINK
0.1882%
44
BitStorage
LINK-USDT$29.33
0.0075326 Eth
$2,201,541.00
75,054.920 LINK
0.1801%
45
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$29.35
0.0075529 Eth
$2,187,106.00
74,278.720 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1783%
46
Kraken
LINK-EUR$29.28
0.0075332 Eth
$2,022,140.00
69,062.262 LINK
0.1658%
47
Bybit
LINK-USDC$29.26
0.0075268 Eth
$1,972,616.00
66,738.824 LINK
0.1602%
48
Kraken
LINK-USDT$29.33
0.0075458 Eth
$1,968,307.00
67,111.282 LINK
0.1611%
49
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$29.42
0.0075702 Eth
$1,883,680.00
63,537.168 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1525%
50
Binance
LINK-EUR$29.22
0.0075223 Eth
$1,719,617.00
57,792.750 LINK
0.1387%
51
tanX
LINK-USDC$29.49
0.0075827 Eth
$1,713,714.00
57,899.910 LINK
0.1390%
52
Coinbase Exchange
LINK-USDT$29.52
0.0075906 Eth
$1,672,380.00
56,660.872 LINK
0.1360%
53
Gemini
LINK-USD$29.23
0.0075204 Eth
$1,302,207.00
44,549.710 LINK
0.1069%
54
Kraken
LINK-XBT$29.48
0.0075841 Eth
$1,243,766.00
42,192.982 LINK
0.1013%
55
GMO Japan
LINK-JPY$29.28
0.0075334 Eth
$1,185,575.00
40,485.200 LINK
0.0972%
56
Tokpie
LINK-USDT$28.88
0.0074134 Eth
$1,137,501.00
39,382.288 LINK
0.0945%
57
Slex
LINK-BTC$29.25
0.0075246 Eth
$1,108,901.00
37,278.600 LINK
0.0895%
58
WhiteBIT
LINK-EUR$29.29
0.0075358 Eth
$1,063,188.00
36,294.690 LINK
0.0871%
59
LATOKEN
LINK-BTC$29.30
0.0075398 Eth
$965,577.00
32,949.947 LINK
0.0791%
60
Bitkub
LINK-THB$29.29
0.0075356 Eth
$945,599.00
32,284.830 LINK
0.0775%
61
Uniswap V3 (Ethereum)
0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X514910771AF9CA656AF840DFF83E8264ECF986CA$29.49
0.0075868 Eth
$861,659.00
2,312.821 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9
0.0056%
62
XT.COM
LINK-XT$29.25
0.0075264 Eth
$795,254.00
26,718.507 LINK
0.0641%
63
Coinbase Exchange
LINK-GBP$29.51
0.0075933 Eth
$778,850.00
26,389.380 LINK
0.0633%
64
Trubit
LINK-USDT$29.24
0.0075233 Eth
$769,855.00
26,110.190 LINK
0.0627%
65
PointPay
LINK-BTC$29.33
0.0075476 Eth
$740,506.00
24,885.123 LINK
0.0597%
66
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$29.36
0.0075528 Eth
$731,302.00
24,764.742 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0594%
67
itBit
LINK-USD$29.26
0.0075281 Eth
$709,091.00
24,234.150 LINK
0.0582%
68
BitMart
LINK-BTC$29.33
0.0075456 Eth
$700,311.00
23,878.300 LINK
0.0573%
69
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$29.49
0.0075868 Eth
$677,947.00
40,543.830 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.0973%
70
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$29.29
0.0075353 Eth
$665,428.00
22,604.932 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0543%
71
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$29.35
0.0075518 Eth
$636,360.00
21,636.159 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0519%
72
Coinbase Exchange
LINK-BTC$29.25
0.0075257 Eth
$612,735.00
20,947.750 LINK
0.0503%
73
BigONE
LINK-USDT$29.21
0.0075151 Eth
$606,158.00
20,751.840 LINK
0.0498%
74
Coinone
LINK-KRW$29.36
0.0075529 Eth
$597,036.00
20,337.330 LINK
0.0488%
75
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$29.32
0.0075446 Eth
$580,132.00
19,620.713 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0471%
76
XT.COM
LINK-ETH$29.25
0.0075242 Eth
$561,144.00
18,905.370 LINK
0.0454%
77
HashKey Exchange
LINK-USD$29.42
0.0075694 Eth
$536,487.00
18,147.904 LINK
0.0436%
78
BitDelta
LINK-USDT$29.29
0.0075360 Eth
$513,565.00
17,344.000 LINK
0.0416%
79
Slex
LINK-ETH$29.29
0.0075357 Eth
$507,398.00
17,151.370 LINK
0.0412%
80
WEEX
LINK-USDC$29.34
0.0075486 Eth
$500,761.00
17,066.816 LINK
0.0410%
81
BitStorage
LINK-ETH$29.47
0.0075798 Eth
$489,986.00
16,628.910 LINK
0.0399%
82
XT.COM
LINK-BTC$29.26
0.0075272 Eth
$488,291.00
16,423.610 LINK
0.0394%
83
Uniswap V2 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$29.40
0.0075638 Eth
$481,308.00
16,307.087 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0391%
84
BitMart
LINK-ETH$29.34
0.0075491 Eth
$479,099.00
16,328.080 LINK
0.0392%
85
Binance US
LINK-USDT$29.03
0.0074847 Eth
$432,868.00
14,910.005 LINK
0.0358%
86
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$29.40
0.0075637 Eth
$418,301.00
14,203.602 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0341%
87
Bitso
LINK-USD$29.07
0.0075010 Eth
$406,223.00
13,976.374 LINK
0.0335%
88
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$29.45
0.0075769 Eth
$298,941.00
10,137.655 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0243%
89
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$29.46
0.0075795 Eth
$288,333.00
9,770.108 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0235%
90
Sushiswap
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$29.40
0.0075625 Eth
$283,404.00
9,569.918 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0230%
91
Bitci TR
LINK-TRY$29.66
0.0076123 Eth
$277,528.00
9,351.652 LINK
0.0224%
92
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$29.29
0.0075350 Eth
$246,352.00
248,487.620 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.5964%
93
BitStorage
LINK-BTC$29.31
0.0075266 Eth
$223,424.00
7,623.000 LINK
0.0183%
94
PancakeSwap (v2)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$29.34
0.0075476 Eth
$206,261.00
6,961.007 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0167%
95
Coinbase Exchange
LINK-ETH$29.48
0.0075835 Eth
$174,423.00
5,917.290 LINK
0.0142%
96
Kraken
LINK-GBP$29.37
0.0075576 Eth
$168,505.00
5,736.363 LINK
0.0138%
97
Foxbit
LINK-BRL$29.77
0.0076600 Eth
$162,513.00
5,478.649 LINK
0.0131%
98
Mercado Bitcoin
LINK-BRL$29.52
0.0075962 Eth
$133,364.00
4,517.021 LINK
0.0108%
99
BYDFi
LINK-USDC$29.39
0.0075457 Eth
$105,695.00
3,596.720 LINK
0.0086%
100
Independent Reserve
LINK-AUD$29.33
0.0075442 Eth
$98,934.00
3,373.053 LINK
0.0081%

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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