ETH Price: $2,684.94 (-1.05%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

736,439 (0.00%)

Market

Price

$17.70 @ 0.006592 ETH (-6.84%)

Onchain Market Cap

$17,700,000,000.00

Circulating Supply Market Cap

$11,285,399,536.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
5,000.006728938282493224 LINK

Value
$88,500.12 ( ~32.9617 Eth) [0.0005%]
0x0f911a34fdfa618087409f26f44b706c68f42818
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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 15990.91% |ETH 0.0003846 1613.99%

Market

Volume (24H):$698,198,353.00
Market Capitalization:$11,285,399,536.00
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
MEXC
LINK-USDT$17.72
0.0066326 Eth
$46,343,488.00
2,615,315.710 LINK
13.2415%
2
Coinbase Exchange
LINK-USD$17.76
0.0066444 Eth
$30,495,001.00
1,716,770.880 LINK
8.6921%
3
Bybit
LINK-USDT$17.87
0.0066829 Eth
$28,364,937.00
1,578,955.919 LINK
7.9944%
4
HTX
LINK-USDT$17.84
0.0066725 Eth
$20,125,521.00
1,119,720.815 LINK
5.6692%
5
Kraken
LINK-USD$17.82
0.0066643 Eth
$14,062,403.00
789,308.275 LINK
3.9963%
6
Bitget
LINK-USDT$17.83
0.0066699 Eth
$12,005,992.00
670,132.223 LINK
3.3929%
7
Slex
LINK-USDT$17.70
0.0066264 Eth
$10,974,092.00
609,352.600 LINK
3.0852%
8
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$17.66
0.0066084 Eth
$10,311,732.00
576,096.073 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.9168%
9
DigiFinex
LINK-USDT$17.84
0.0066742 Eth
$9,995,570.00
560,201.400 LINK
2.8363%
10
Gate.io
LINK-USDT$17.83
0.0066636 Eth
$9,680,273.00
540,173.120 LINK
2.7349%
11
OKX
LINK-USDT$17.87
0.0066786 Eth
$9,352,897.00
519,823.247 LINK
2.6319%
12
MEXC
LINK-EUR$17.70
0.0066233 Eth
$8,551,789.00
483,248.780 LINK
2.4467%
13
KuCoin
LINK-USDT$17.76
0.0066436 Eth
$8,432,816.00
474,853.312 LINK
2.4042%
14
XT.COM
LINK-USDT$17.83
0.0066701 Eth
$8,092,661.00
450,963.880 LINK
2.2833%
15
MEXC
LINK-USDC$17.74
0.0066388 Eth
$7,998,253.00
450,928.100 LINK
2.2831%
16
Coinstore
LINK-USDT$17.77
0.0066500 Eth
$6,975,756.00
388,923.320 LINK
1.9691%
17
CoinW
LINK-USDT$17.70
0.0066270 Eth
$6,318,458.00
356,946.700 LINK
1.8072%
18
Binance
LINK-FDUSD$17.68
0.0066329 Eth
$6,248,982.00
347,229.640 LINK
1.7580%
19
WhiteBIT
LINK-USDT$17.71
0.0066318 Eth
$5,622,252.00
317,383.180 LINK
1.6069%
20
Binance
LINK-USDC$17.84
0.0066728 Eth
$5,534,804.00
309,224.630 LINK
1.5656%
21
Hotcoin
LINK-USDT$17.73
0.0066367 Eth
$5,339,658.00
301,148.260 LINK
1.5247%
22
Azbit
LINK-USDT$17.71
0.0066258 Eth
$4,856,382.00
270,605.344 LINK
1.3701%
23
Bitunix
LINK-USDT$17.77
0.0066469 Eth
$4,688,027.00
263,936.330 LINK
1.3363%
24
BYDFi
LINK-USDT$17.67
0.0066298 Eth
$4,478,657.00
253,392.840 LINK
1.2829%
25
BTSE
LINK-USDT$17.75
0.0066413 Eth
$4,112,501.00
231,663.186 LINK
1.1729%
26
Coinbase Exchange
LINK-GBP$17.74
0.0066373 Eth
$3,859,095.00
217,487.000 LINK
1.1012%
27
LATOKEN
LINK-USDT$17.78
0.0066520 Eth
$3,847,949.00
216,400.561 LINK
1.0957%
28
QMall
LINK-USDT$17.84
0.0066736 Eth
$3,316,629.00
185,020.548 LINK
0.9368%
29
Bitvavo
LINK-EUR$17.71
0.0066268 Eth
$2,894,917.00
163,490.929 LINK
0.8278%
30
FMCPAY
LINK-USDT$17.75
0.0066408 Eth
$2,789,593.00
154,690.231 LINK
0.7832%
31
Dex-Trade
LINK-USDT$17.85
0.0066718 Eth
$2,594,017.00
145,282.900 LINK
0.7356%
32
CoinEx
LINK-USDT$17.77
0.0066477 Eth
$2,255,975.00
125,990.997 LINK
0.6379%
33
Coinbase Exchange
LINK-EUR$17.76
0.0066422 Eth
$2,218,832.00
124,954.950 LINK
0.6327%
34
Binance
LINK-BTC$17.71
0.0066283 Eth
$1,818,580.00
101,543.360 LINK
0.5141%
35
Biconomy.com
LINK-USDT$17.75
0.0066411 Eth
$1,535,075.00
85,304.190 LINK
0.4319%
36
Binance
LINK-ETH$17.77
0.0066412 Eth
$1,217,670.00
67,951.200 LINK
0.3440%
37
PointPay
LINK-USDT$17.84
0.0066736 Eth
$1,213,951.00
67,753.686 LINK
0.3430%
38
FMCPAY
LINK-BTC$17.69
0.0066228 Eth
$1,191,910.00
66,060.200 LINK
0.3345%
39
FMCPAY
LINK-ETH$17.68
0.0066178 Eth
$1,184,648.00
65,901.120 LINK
0.3337%
40
Gemini
LINK-USD$17.72
0.0066274 Eth
$881,233.00
49,737.712 LINK
0.2518%
41
tanX
LINK-USDC$17.77
0.0066487 Eth
$862,651.00
47,759.290 LINK
0.2418%
42
Phemex
LINK-USDT$17.78
0.0066520 Eth
$858,230.00
48,264.910 LINK
0.2444%
43
EXMO
LINK-USDT$17.77
0.0066482 Eth
$849,101.00
47,780.202 LINK
0.2419%
44
Trubit
LINK-USDT$17.70
0.0066237 Eth
$810,492.00
45,106.500 LINK
0.2284%
45
Bitbank
LINK-JPY$17.83
0.0066690 Eth
$718,675.00
40,309.496 LINK
0.2041%
46
WhiteBIT
LINK-BTC$17.72
0.0066285 Eth
$706,949.00
39,897.990 LINK
0.2020%
47
LATOKEN
LINK-BTC$17.71
0.0066290 Eth
$704,119.00
39,752.406 LINK
0.2013%
48
BigONE
LINK-USDT$17.66
0.0066137 Eth
$698,635.00
39,563.860 LINK
0.2003%
49
BitStorage
LINK-USDT$17.73
0.0066366 Eth
$641,496.00
36,179.380 LINK
0.1832%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$17.77
0.0066461 Eth
$638,690.00
35,653.893 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1805%
51
Binance
LINK-EUR$17.78
0.0066500 Eth
$634,000.00
35,274.240 LINK
0.1786%
52
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$17.73
0.0066326 Eth
$632,285.00
35,301.972 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1787%
53
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.65
0.0066039 Eth
$590,665.00
32,441.645 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1643%
54
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$17.73
0.0066336 Eth
$530,676.00
56,192.847 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2845%
55
itBit
LINK-USD$17.80
0.0066590 Eth
$524,732.00
29,479.304 LINK
0.1493%
56
OKX
LINK-USDC$17.87
0.0066787 Eth
$503,915.00
28,504.282 LINK
0.1443%
57
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.71
0.0066259 Eth
$496,571.00
27,689.719 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1402%
58
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.76
0.0066457 Eth
$469,683.00
476,126.284 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.4107%
59
QMall
LINK-USDC$17.76
0.0066429 Eth
$452,724.00
25,307.865 LINK
0.1281%
60
EarnBIT
LINK-USDT$17.62
0.0066131 Eth
$450,955.00
25,057.501 LINK
0.1269%
61
Binance
LINK-TRY$17.65
0.0066246 Eth
$425,501.00
23,740.560 LINK
0.1202%
62
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$17.75
0.0066397 Eth
$408,200.00
22,819.204 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1155%
63
Bybit
LINK-USDC$17.85
0.0066759 Eth
$370,861.00
20,606.278 LINK
0.1043%
64
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.73
0.0066336 Eth
$351,002.00
19,508.610 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0988%
65
Coinbase Exchange
LINK-USDT$17.82
0.0066661 Eth
$334,717.00
18,781.478 LINK
0.0951%
66
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.75
0.0066387 Eth
$307,916.00
17,086.296 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0865%
67
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$17.61
0.0065790 Eth
$304,212.00
17,285.803 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0875%
68
BitDelta
LINK-USDT$17.77
0.0066482 Eth
$287,384.00
15,985.000 LINK
0.0809%
69
BitStorage
LINK-ETH$17.67
0.0066309 Eth
$270,166.00
15,288.090 LINK
0.0774%
70
Slex
LINK-ETH$17.68
0.0066188 Eth
$246,357.00
13,756.360 LINK
0.0696%
71
BitMart
LINK-BTC$17.71
0.0066242 Eth
$245,206.00
13,845.900 LINK
0.0701%
72
Binance US
LINK-USDT$17.74
0.0066376 Eth
$231,528.00
13,049.714 LINK
0.0661%
73
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.76
0.0066441 Eth
$227,712.00
12,701.476 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0643%
74
Hotcoin
LINK-BTC$17.83
0.0066688 Eth
$191,360.00
10,733.480 LINK
0.0543%
75
Bitci TR
LINK-TRY$17.73
0.0066243 Eth
$183,907.00
10,191.890 LINK
0.0516%
76
CoinTR
LINK-TRY$17.85
0.0066755 Eth
$178,809.00
9,940.750 LINK
0.0503%
77
BYDFi
LINK-USDC$17.61
0.0066117 Eth
$174,889.00
9,928.600 LINK
0.0503%
78
WhiteBIT
LINK-EUR$17.71
0.0066262 Eth
$174,071.00
9,826.640 LINK
0.0498%
79
bitcastle
LINK-USDT$17.76
0.0066441 Eth
$164,840.00
9,194.880 LINK
0.0466%
80
Kraken
LINK-ETH$17.66
0.0066045 Eth
$149,227.00
8,451.757 LINK
0.0428%
81
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.87
0.0066846 Eth
$145,741.00
8,108.525 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0411%
82
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$17.69
0.0066158 Eth
$144,363.00
8,052.862 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0408%
83
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$17.63
0.0065961 Eth
$127,561.00
7,091.222 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0359%
84
Kraken
LINK-GBP$17.57
0.0065717 Eth
$127,255.00
7,243.267 LINK
0.0367%
85
Bitso
LINK-USD$17.69
0.0066220 Eth
$100,671.00
5,690.186 LINK
0.0288%
86
KuCoin
LINK-USDC$17.77
0.0066468 Eth
$92,531.00
5,207.949 LINK
0.0264%
87
Kanga
LINK-PLN$17.70
0.0066408 Eth
$83,597.00
0.000 LINK
0.0000%
88
Uniswap V4 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.68
0.0066133 Eth
$78,118.00
79,842.930 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.4043%
89
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$17.74
0.0066368 Eth
$75,450.00
76,487.402 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.3873%
90
Bitstamp
LINK-GBP$17.77
0.0066467 Eth
$74,991.00
4,220.296 LINK
0.0214%
91
BTCMarkets
LINK-AUD$17.55
0.0065684 Eth
$74,342.00
4,236.162 LINK
0.0214%
92
Binance
LINK-BNB$17.70
0.0066260 Eth
$66,788.00
3,778.565 LINK
0.0191%
93
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$17.70
0.0066217 Eth
$65,651.00
3,813.255 0X5947BB275C521040051D82396192181B413227A3
0.0193%
94
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.71
0.0066245 Eth
$58,981.00
3,277.563 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0166%
95
Hotcoin
LINK-ETH$17.74
0.0066387 Eth
$53,406.00
3,010.390 LINK
0.0152%
96
Binance
LINK-BRL$17.72
0.0066467 Eth
$51,936.00
2,878.480 LINK
0.0146%
97
Independent Reserve
LINK-AUD$17.70
0.0066251 Eth
$51,583.00
2,914.343 LINK
0.0148%
98
KuCoin
LINK-BTC$17.76
0.0066430 Eth
$44,770.00
2,521.231 LINK
0.0128%
99
EXMO
LINK-BTC$17.71
0.0066259 Eth
$40,491.00
2,286.168 LINK
0.0116%
100
Dex-Trade
LINK-ETH$17.71
0.0066255 Eth
$34,944.00
1,973.090 LINK
0.0100%

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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