ETH Price: $3,368.71 (-3.03%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

727,873 (0.00%)

Market

Price

$23.03 @ 0.006836 ETH (-4.30%)

Onchain Market Cap

$23,030,000,000.00

Circulating Supply Market Cap

$14,458,631,300.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0xaac74de1250a2f34a5756230d881a089de99e42b
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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 20836.36% |ETH 0.0003846 1677.43%

Market

Volume (24H):$981,646,577.00
Market Capitalization:$14,458,631,300.00
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$23.04
0.0068472 Eth
$95,351,175.00
4,129,468.910 LINK
19.1783%
2
Coinbase Exchange
LINK-USD$23.05
0.0068502 Eth
$37,133,323.00
1,611,339.670 LINK
7.4835%
3
Upbit
LINK-KRW$23.54
0.0069929 Eth
$36,581,482.00
1,553,764.253 LINK
7.2161%
4
Bitget
LINK-USDT$23.08
0.0068545 Eth
$31,418,524.00
1,360,282.855 LINK
6.3175%
5
Bybit
LINK-USDT$23.06
0.0068484 Eth
$25,967,856.00
1,123,538.378 LINK
5.2180%
6
Slex
LINK-USDT$23.08
0.0068545 Eth
$23,595,172.00
1,023,019.410 LINK
4.7512%
7
P2B
LINK-USDT$22.77
0.0068179 Eth
$19,118,558.00
839,714.880 LINK
3.8999%
8
CoinW
LINK-USDT$23.04
0.0068504 Eth
$18,806,775.00
816,120.270 LINK
3.7903%
9
OKX
LINK-USDT$23.06
0.0068486 Eth
$18,599,014.00
806,084.599 LINK
3.7437%
10
DigiFinex
LINK-USDT$23.08
0.0068543 Eth
$12,766,588.00
553,208.960 LINK
2.5692%
11
HTX
LINK-USDT$23.05
0.0068463 Eth
$11,445,113.00
497,012.678 LINK
2.3083%
12
Azbit
LINK-USDT$23.04
0.0068423 Eth
$9,486,229.00
410,819.443 LINK
1.9080%
13
XT.COM
LINK-USDT$23.05
0.0068452 Eth
$9,473,365.00
410,301.340 LINK
1.9055%
14
Coinstore
LINK-USDT$23.00
0.0068511 Eth
$8,301,866.00
359,597.120 LINK
1.6701%
15
Bitunix
LINK-USDT$23.01
0.0068413 Eth
$7,873,412.00
342,215.620 LINK
1.5893%
16
Kraken
LINK-USD$23.07
0.0068528 Eth
$7,457,213.00
323,210.941 LINK
1.5011%
17
Bithumb
LINK-KRW$23.54
0.0069883 Eth
$7,327,730.00
311,327.923 LINK
1.4459%
18
BTSE
LINK-USDT$23.00
0.0068370 Eth
$7,162,278.00
311,433.716 LINK
1.4464%
19
Biconomy.com
LINK-USDT$23.06
0.0068488 Eth
$6,876,343.00
297,919.224 LINK
1.3836%
20
Binance
LINK-FDUSD$22.79
0.0068120 Eth
$6,856,773.00
296,766.630 LINK
1.3783%
21
BYDFi
LINK-USDT$23.05
0.0068504 Eth
$6,002,550.00
260,459.770 LINK
1.2096%
22
KuCoin
LINK-USDT$23.08
0.0068541 Eth
$5,389,831.00
233,562.251 LINK
1.0847%
23
Hotcoin
LINK-USDT$23.01
0.0068408 Eth
$4,800,237.00
208,598.380 LINK
0.9688%
24
LATOKEN
LINK-USDT$22.69
0.0067901 Eth
$4,595,732.00
202,548.413 LINK
0.9407%
25
LBank
LINK-USDT$23.05
0.0068499 Eth
$4,571,810.00
198,338.660 LINK
0.9211%
26
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$22.78
0.0067693 Eth
$4,075,946.00
178,628.822 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.8296%
27
FMCPAY
LINK-USDT$23.03
0.0068445 Eth
$3,428,637.00
148,380.340 LINK
0.6891%
28
Dex-Trade
LINK-USDT$23.03
0.0068444 Eth
$3,082,245.00
133,859.300 LINK
0.6217%
29
Coinbase Exchange
LINK-GBP$23.06
0.0068483 Eth
$2,832,583.00
122,833.790 LINK
0.5705%
30
Bitvavo
LINK-EUR$22.80
0.0068235 Eth
$2,513,155.00
110,221.802 LINK
0.5119%
31
Dcoin
LINK-USDT$23.06
0.0068469 Eth
$2,378,666.00
103,148.000 LINK
0.4790%
32
CoinEx
LINK-USDT$23.03
0.0068393 Eth
$1,983,326.00
86,189.539 LINK
0.4003%
33
Bitbank
LINK-JPY$23.18
0.0068862 Eth
$1,517,833.00
65,466.945 LINK
0.3040%
34
PointPay
LINK-USDT$22.99
0.0068348 Eth
$1,511,668.00
65,603.745 LINK
0.3047%
35
FMCPAY
LINK-ETH$23.00
0.0068370 Eth
$1,455,162.00
63,232.160 LINK
0.2937%
36
FMCPAY
LINK-BTC$23.01
0.0068385 Eth
$1,405,680.00
61,237.900 LINK
0.2844%
37
EXMO
LINK-USDT$23.07
0.0068488 Eth
$1,345,021.00
58,308.776 LINK
0.2708%
38
Bitstamp
LINK-USD$23.06
0.0068492 Eth
$1,237,842.00
53,679.167 LINK
0.2493%
39
WhiteBIT
LINK-BTC$23.02
0.0068421 Eth
$1,193,189.00
51,841.090 LINK
0.2408%
40
WhiteBIT
LINK-TRY$22.92
0.0068401 Eth
$1,151,631.00
50,244.730 LINK
0.2333%
41
Phemex
LINK-USDT$22.78
0.0068101 Eth
$1,128,144.00
49,516.500 LINK
0.2300%
42
Bitstamp
LINK-EUR$22.99
0.0068274 Eth
$1,025,780.00
44,625.062 LINK
0.2073%
43
Coinbase Exchange
LINK-EUR$22.99
0.0068265 Eth
$1,010,987.00
43,981.490 LINK
0.2043%
44
Bybit
LINK-USDC$23.07
0.0068508 Eth
$987,680.00
43,001.562 LINK
0.1997%
45
tanX
LINK-USDC$22.99
0.0068373 Eth
$944,129.00
40,764.560 LINK
0.1893%
46
EarnBIT
LINK-USDT$23.01
0.0068405 Eth
$886,544.00
38,433.423 LINK
0.1785%
47
Trubit
LINK-USDT$23.01
0.0068393 Eth
$886,376.00
38,412.420 LINK
0.1784%
48
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.03
0.0068445 Eth
$838,662.00
36,315.019 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1687%
49
itBit
LINK-USD$23.04
0.0068408 Eth
$811,420.00
35,217.861 LINK
0.1636%
50
BigONE
LINK-USDT$23.15
0.0068724 Eth
$801,649.00
34,633.570 LINK
0.1608%
51
BitStorage
LINK-USDT$22.92
0.0068336 Eth
$777,250.00
33,909.210 LINK
0.1575%
52
Tokpie
LINK-USDT$22.70
0.0067825 Eth
$671,227.00
29,563.884 LINK
0.1373%
53
Coinbase Exchange
LINK-USDT$23.02
0.0068452 Eth
$610,593.00
26,529.955 LINK
0.1232%
54
Binance
LINK-TRY$22.85
0.0068309 Eth
$498,322.00
21,578.240 LINK
0.1002%
55
Koinpark
LINK-USDT$22.99
0.0068348 Eth
$486,119.00
21,143.088 LINK
0.0982%
56
HashKey Exchange
LINK-USD$22.87
0.0068301 Eth
$483,870.00
20,869.713 LINK
0.0969%
57
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.04
0.0068444 Eth
$483,248.00
21,047.974 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0978%
58
Binance
LINK-EUR$23.08
0.0068552 Eth
$454,463.00
19,749.050 LINK
0.0917%
59
Gemini
LINK-USD$23.11
0.0068646 Eth
$443,185.00
19,175.508 LINK
0.0891%
60
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.04
0.0068432 Eth
$441,376.00
19,175.206 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0891%
61
Slex
LINK-ETH$23.02
0.0068395 Eth
$415,585.00
18,043.650 LINK
0.0838%
62
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.03
0.0068423 Eth
$409,245.00
17,721.104 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0823%
63
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.04
0.0068404 Eth
$396,534.00
397,107.271 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.8443%
64
BitMart
LINK-BTC$23.09
0.0068566 Eth
$361,060.00
15,640.440 LINK
0.0726%
65
WhiteBIT
LINK-EUR$23.00
0.0068374 Eth
$327,421.00
14,234.310 LINK
0.0661%
66
Coinone
LINK-KRW$23.46
0.0069688 Eth
$310,268.00
13,223.940 LINK
0.0614%
67
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$23.00
0.0068360 Eth
$310,151.00
23,178.528 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1076%
68
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.08
0.0068540 Eth
$283,880.00
283,342.259 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.3159%
69
OKX
LINK-USDC$23.06
0.0068501 Eth
$277,914.00
12,078.434 LINK
0.0561%
70
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$22.87
0.0067956 Eth
$262,638.00
11,290.119 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0524%
71
BitDelta
LINK-USDT$22.91
0.0068309 Eth
$260,522.00
11,276.000 LINK
0.0524%
72
LATOKEN
LINK-BTC$23.05
0.0068449 Eth
$257,203.00
11,156.619 LINK
0.0518%
73
Bitkub
LINK-THB$23.10
0.0068702 Eth
$252,849.00
10,946.107 LINK
0.0508%
74
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.04
0.0068412 Eth
$250,353.00
10,854.728 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0504%
75
Coinbase Exchange
LINK-BTC$23.00
0.0068375 Eth
$248,737.00
10,814.210 LINK
0.0502%
76
Bitci TR
LINK-TRY$23.14
0.0068783 Eth
$235,435.00
10,159.351 LINK
0.0472%
77
Binance
LINK-BRL$22.96
0.0068506 Eth
$201,460.00
8,622.970 LINK
0.0400%
78
PointPay
LINK-BTC$22.79
0.0068114 Eth
$187,222.00
8,170.840 LINK
0.0379%
79
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.13
0.0068703 Eth
$185,330.00
8,005.644 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0372%
80
Binance US
LINK-USDT$23.00
0.0068285 Eth
$173,414.00
7,540.131 LINK
0.0350%
81
Hotcoin
LINK-BTC$23.02
0.0068416 Eth
$172,193.00
7,481.370 LINK
0.0347%
82
BYDFi
LINK-USDC$22.75
0.0068050 Eth
$162,300.00
7,133.090 LINK
0.0331%
83
BitStorage
LINK-ETH$23.01
0.0068388 Eth
$148,584.00
6,456.460 LINK
0.0300%
84
BitMart
LINK-ETH$23.09
0.0068590 Eth
$147,971.00
6,407.580 LINK
0.0298%
85
BTCMarkets
LINK-AUD$22.82
0.0067847 Eth
$146,096.00
6,401.605 LINK
0.0297%
86
KuCoin
LINK-USDC$23.04
0.0068444 Eth
$125,495.00
5,445.923 LINK
0.0253%
87
Coins.ph
LINK-PHP$23.01
0.0068328 Eth
$110,877.00
4,739.289 LINK
0.0220%
88
OKX
LINK-EUR$23.02
0.0068367 Eth
$110,155.00
4,791.048 LINK
0.0223%
89
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.07
0.0068524 Eth
$100,551.00
4,365.091 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0203%
90
Coinbase Exchange
LINK-ETH$22.90
0.0068057 Eth
$100,125.00
4,373.130 LINK
0.0203%
91
Bitso
LINK-USD$23.07
0.0068536 Eth
$99,987.00
4,333.186 LINK
0.0201%
92
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$23.07
0.0068554 Eth
$75,524.00
75,629.871 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.3512%
93
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.08
0.0068551 Eth
$73,619.00
3,196.819 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0148%
94
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.04
0.0068429 Eth
$61,142.00
2,673.278 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0124%
95
Hotcoin
LINK-ETH$23.10
0.0068600 Eth
$59,797.00
2,588.800 LINK
0.0120%
96
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$23.02
0.0068393 Eth
$56,194.00
4,185.434 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.0194%
97
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$23.02
0.0068405 Eth
$54,707.00
2,366.584 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0110%
98
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.02
0.0068395 Eth
$52,666.00
2,278.765 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0106%
99
Mercado Bitcoin
LINK-BRL$23.22
0.0068957 Eth
$38,680.00
1,666.046 LINK
0.0077%
100
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$22.86
0.0067904 Eth
$19,678.18
855.719 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0040%

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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