ETH Price: $2,682.02 (-1.11%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

736,460 ( 0.004%)

Market

Price

$17.87 @ 0.006663 ETH (-5.10%)

Onchain Market Cap

$17,870,000,000.00

Circulating Supply Market Cap

$11,410,166,957.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0xca6a464d99a26517dac50d382f9b9baf8241d7e3
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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 16145.45% |ETH 0.0003846 1632.45%

Market

Volume (24H):$696,395,589.00
Market Capitalization:$11,410,166,957.00
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$17.83
0.0066335 Eth
$30,936,509.00
1,734,887.250 LINK
10.5184%
2
Bybit
LINK-USDT$17.83
0.0066326 Eth
$28,233,551.00
1,573,797.691 LINK
9.5417%
3
HTX
LINK-USDT$17.81
0.0066266 Eth
$20,413,202.00
1,137,636.509 LINK
6.8973%
4
Kraken
LINK-USD$17.82
0.0066335 Eth
$13,670,405.00
767,159.855 LINK
4.6512%
5
Bitget
LINK-USDT$17.81
0.0066262 Eth
$12,103,376.00
676,339.239 LINK
4.1006%
6
Slex
LINK-USDT$17.83
0.0066344 Eth
$10,962,927.00
610,580.000 LINK
3.7019%
7
Gate.io
LINK-USDT$17.81
0.0066283 Eth
$9,894,441.00
553,238.160 LINK
3.3542%
8
DigiFinex
LINK-USDT$17.82
0.0066294 Eth
$9,866,979.00
553,740.060 LINK
3.3573%
9
OKX
LINK-USDT$17.79
0.0066179 Eth
$9,207,804.00
513,275.294 LINK
3.1119%
10
KuCoin
LINK-USDT$17.82
0.0066287 Eth
$8,473,905.00
475,630.481 LINK
2.8837%
11
MEXC
LINK-EUR$17.85
0.0066412 Eth
$8,104,106.00
454,026.850 LINK
2.7527%
12
XT.COM
LINK-USDT$17.83
0.0066335 Eth
$8,011,154.00
447,076.800 LINK
2.7106%
13
MEXC
LINK-USDC$17.83
0.0066267 Eth
$7,577,856.00
425,073.640 LINK
2.5772%
14
Coinstore
LINK-USDT$17.80
0.0066246 Eth
$6,901,517.00
385,492.640 LINK
2.3372%
15
CoinW
LINK-USDT$17.82
0.0066319 Eth
$6,346,764.00
356,094.090 LINK
2.1590%
16
Binance
LINK-FDUSD$17.84
0.0066287 Eth
$6,339,750.00
354,577.930 LINK
2.1498%
17
Binance
LINK-USDC$17.86
0.0066369 Eth
$5,542,686.00
309,857.720 LINK
1.8786%
18
Hotcoin
LINK-USDT$17.85
0.0066369 Eth
$5,397,765.00
302,427.350 LINK
1.8336%
19
WhiteBIT
LINK-USDT$17.93
0.0066693 Eth
$4,986,041.00
278,033.420 LINK
1.6857%
20
Azbit
LINK-USDT$17.98
0.0066682 Eth
$4,830,012.00
269,468.848 LINK
1.6338%
21
Bitunix
LINK-USDT$17.81
0.0066283 Eth
$4,653,417.00
261,135.250 LINK
1.5832%
22
BYDFi
LINK-USDT$17.94
0.0066712 Eth
$4,539,601.00
253,056.840 LINK
1.5343%
23
BTSE
LINK-USDT$17.83
0.0066317 Eth
$4,120,990.00
231,073.312 LINK
1.4010%
24
LATOKEN
LINK-USDT$17.82
0.0066301 Eth
$3,808,859.00
213,741.277 LINK
1.2959%
25
Coinbase Exchange
LINK-GBP$17.83
0.0066315 Eth
$3,774,054.00
211,707.330 LINK
1.2836%
26
QMall
LINK-USDT$17.83
0.0066324 Eth
$3,283,265.00
183,447.613 LINK
1.1122%
27
Bitvavo
LINK-EUR$17.83
0.0066338 Eth
$2,921,831.00
163,885.437 LINK
0.9936%
28
FMCPAY
LINK-USDT$17.82
0.0066269 Eth
$2,741,837.00
152,328.331 LINK
0.9235%
29
Dex-Trade
LINK-USDT$17.93
0.0066554 Eth
$2,588,546.00
144,345.670 LINK
0.8751%
30
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.84
0.0066398 Eth
$2,367,091.00
130,899.676 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.7936%
31
CoinEx
LINK-USDT$17.86
0.0066424 Eth
$2,254,990.00
126,011.881 LINK
0.7640%
32
Coinbase Exchange
LINK-EUR$17.91
0.0066641 Eth
$2,068,557.00
115,468.930 LINK
0.7001%
33
Biconomy.com
LINK-USDT$17.83
0.0066340 Eth
$1,505,934.00
83,900.380 LINK
0.5087%
34
Binance
LINK-ETH$17.92
0.0066530 Eth
$1,276,947.00
70,756.250 LINK
0.4290%
35
PointPay
LINK-USDT$17.84
0.0066344 Eth
$1,199,858.00
67,077.574 LINK
0.4067%
36
FMCPAY
LINK-ETH$17.87
0.0066477 Eth
$1,197,101.00
66,154.240 LINK
0.4011%
37
FMCPAY
LINK-BTC$17.83
0.0066321 Eth
$1,169,412.00
64,800.000 LINK
0.3929%
38
Phemex
LINK-USDT$17.83
0.0066306 Eth
$853,225.00
47,855.490 LINK
0.2901%
39
EXMO
LINK-USDT$17.82
0.0066319 Eth
$852,048.00
47,801.432 LINK
0.2898%
40
tanX
LINK-USDC$17.83
0.0066330 Eth
$842,878.00
46,762.910 LINK
0.2835%
41
Trubit
LINK-USDT$17.83
0.0066325 Eth
$809,871.00
45,175.070 LINK
0.2739%
42
Gemini
LINK-USD$17.83
0.0066336 Eth
$795,793.00
44,632.221 LINK
0.2706%
43
Bitbank
LINK-JPY$17.85
0.0066413 Eth
$734,881.00
41,168.054 LINK
0.2496%
44
BigONE
LINK-USDT$17.95
0.0066879 Eth
$709,361.00
39,513.860 LINK
0.2396%
45
LATOKEN
LINK-BTC$17.85
0.0066402 Eth
$708,058.00
39,677.572 LINK
0.2406%
46
WhiteBIT
LINK-BTC$17.83
0.0066327 Eth
$706,027.00
39,608.440 LINK
0.2401%
47
BitStorage
LINK-USDT$17.84
0.0066336 Eth
$642,416.00
36,011.430 LINK
0.2183%
48
Binance
LINK-EUR$17.97
0.0066702 Eth
$632,349.00
35,181.070 LINK
0.2133%
49
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$17.85
0.0066418 Eth
$617,567.00
34,259.222 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2077%
50
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.78
0.0066163 Eth
$538,736.00
29,435.211 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1785%
51
itBit
LINK-USD$17.86
0.0066428 Eth
$525,212.00
29,407.162 LINK
0.1783%
52
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.90
0.0066609 Eth
$504,687.00
27,944.451 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1694%
53
OKX
LINK-USDC$17.79
0.0066174 Eth
$503,908.00
28,521.353 LINK
0.1729%
54
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$17.96
0.0066836 Eth
$496,361.00
51,796.806 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.3140%
55
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.83
0.0066331 Eth
$477,466.00
481,477.097 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.9191%
56
QMall
LINK-USDC$17.84
0.0066365 Eth
$455,954.00
25,506.662 LINK
0.1546%
57
EarnBIT
LINK-USDT$17.82
0.0066315 Eth
$433,928.00
24,212.515 LINK
0.1468%
58
Binance
LINK-TRY$17.84
0.0066385 Eth
$424,203.00
23,686.620 LINK
0.1436%
59
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$17.87
0.0066493 Eth
$417,394.00
23,289.868 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1412%
60
Bybit
LINK-USDC$17.81
0.0066276 Eth
$369,686.00
20,550.656 LINK
0.1246%
61
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.84
0.0066383 Eth
$352,386.00
19,492.907 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1182%
62
Coinbase Exchange
LINK-USDT$17.90
0.0066599 Eth
$350,182.00
19,563.365 LINK
0.1186%
63
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.93
0.0066715 Eth
$303,811.00
16,780.321 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1017%
64
BitDelta
LINK-USDT$17.84
0.0066344 Eth
$290,309.00
16,174.000 LINK
0.0981%
65
Tokpie
LINK-USDT$17.90
0.0066592 Eth
$284,937.00
15,919.369 LINK
0.0965%
66
BitStorage
LINK-ETH$17.87
0.0066443 Eth
$282,090.00
15,787.460 LINK
0.0957%
67
Slex
LINK-ETH$17.86
0.0066458 Eth
$258,680.00
14,334.140 LINK
0.0869%
68
BitMart
LINK-BTC$17.83
0.0066343 Eth
$250,121.00
14,026.580 LINK
0.0850%
69
GMO Japan
LINK-JPY$17.89
0.0066578 Eth
$245,901.00
13,742.100 LINK
0.0833%
70
Binance US
LINK-USDT$17.96
0.0066782 Eth
$238,076.00
13,256.540 LINK
0.0804%
71
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.96
0.0066836 Eth
$234,785.00
13,018.402 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0789%
72
Hotcoin
LINK-BTC$17.84
0.0066364 Eth
$192,151.00
10,772.910 LINK
0.0653%
73
CoinTR
LINK-TRY$17.88
0.0066526 Eth
$183,867.00
10,236.690 LINK
0.0621%
74
Bitci TR
LINK-TRY$17.97
0.0066854 Eth
$183,312.00
10,181.730 LINK
0.0617%
75
BYDFi
LINK-USDC$17.92
0.0066568 Eth
$178,344.00
9,954.160 LINK
0.0604%
76
bitcastle
LINK-USDT$17.82
0.0066399 Eth
$167,176.00
9,325.930 LINK
0.0565%
77
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$17.86
0.0066443 Eth
$148,118.00
8,220.373 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0498%
78
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.82
0.0066296 Eth
$145,730.00
8,131.910 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0493%
79
Coinbase Exchange
LINK-ETH$17.87
0.0066478 Eth
$129,748.00
7,261.790 LINK
0.0440%
80
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$17.96
0.0066828 Eth
$128,384.00
7,115.776 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0431%
81
Bitso
LINK-USD$17.96
0.0066804 Eth
$99,996.00
5,569.051 LINK
0.0338%
82
KuCoin
LINK-USDC$17.82
0.0066310 Eth
$98,113.00
5,505.134 LINK
0.0334%
83
Bitkub
LINK-THB$17.99
0.0066939 Eth
$96,711.00
5,375.173 LINK
0.0326%
84
WhiteBIT
LINK-TRY$17.82
0.0066275 Eth
$90,416.00
5,075.000 LINK
0.0308%
85
Uniswap V4 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.92
0.0066657 Eth
$79,693.00
80,177.519 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.4861%
86
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$17.85
0.0066393 Eth
$76,498.00
76,965.561 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.4666%
87
BTCMarkets
LINK-AUD$17.85
0.0066411 Eth
$75,570.00
4,234.126 LINK
0.0257%
88
BitMart
LINK-ETH$17.84
0.0066380 Eth
$70,788.00
3,967.500 LINK
0.0241%
89
Binance
LINK-BNB$17.97
0.0066717 Eth
$66,849.00
3,737.981 LINK
0.0227%
90
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$17.90
0.0066589 Eth
$62,654.00
3,602.969 0X5947BB275C521040051D82396192181B413227A3
0.0218%
91
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.85
0.0066428 Eth
$60,379.00
3,338.042 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0202%
92
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$17.93
0.0066718 Eth
$58,390.00
3,227.464 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0196%
93
Hotcoin
LINK-ETH$17.83
0.0066456 Eth
$53,767.00
3,015.360 LINK
0.0183%
94
Independent Reserve
LINK-AUD$17.83
0.0066301 Eth
$52,068.00
2,920.290 LINK
0.0177%
95
Binance
LINK-BRL$17.88
0.0066354 Eth
$51,811.00
2,872.430 LINK
0.0174%
96
KuCoin
LINK-BTC$17.81
0.0066249 Eth
$44,042.00
2,473.498 LINK
0.0150%
97
Indodax
LINK-IDR$17.84
0.0066344 Eth
$43,241.00
2,423.580 LINK
0.0147%
98
Uniswap V4 (Ethereum)
0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48-0X514910771AF9CA656AF840DFF83E8264ECF986CA$17.93
0.0066726 Eth
$40,372.00
40,132.627 0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48
0.2433%
99
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$17.84
0.0066383 Eth
$38,985.00
2,170.719 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0132%
100
Dex-Trade
LINK-ETH$17.86
0.0066464 Eth
$36,884.00
2,064.610 LINK
0.0125%

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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