ETH Price: $3,349.23 (+0.42%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

728,348 (0.00%)

Market

Price

$20.00 @ 0.005972 ETH (-1.63%)

Onchain Market Cap

$20,000,000,000.00

Circulating Supply Market Cap

$12,622,688,423.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0xfce4605e6ec2720a158a9dd8e108c1145057df02
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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 18081.82% |ETH 0.0003846 1452.78%

Market

Volume (24H):$748,071,453.00
Market Capitalization:$12,622,688,423.00
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
Coinbase Exchange
LINK-USD$20.04
0.0059848 Eth
$46,217,258.00
2,306,250.390 LINK
15.6141%
2
Bybit
LINK-USDT$20.03
0.0059832 Eth
$19,296,103.00
944,070.629 LINK
6.3917%
3
P2B
LINK-USDT$20.06
0.0059909 Eth
$18,035,339.00
899,052.310 LINK
6.0869%
4
CoinW
LINK-USDT$20.05
0.0059793 Eth
$17,049,667.00
850,149.110 LINK
5.7558%
5
OKX
LINK-USDT$20.03
0.0059829 Eth
$12,675,082.00
620,207.805 LINK
4.1990%
6
Gate.io
LINK-USDT$20.04
0.0059835 Eth
$12,561,749.00
613,128.320 LINK
4.1511%
7
DigiFinex
LINK-USDT$20.03
0.0059835 Eth
$11,439,247.00
570,964.850 LINK
3.8656%
8
HTX
LINK-USDT$20.05
0.0059866 Eth
$9,679,620.00
475,227.074 LINK
3.2174%
9
XT.COM
LINK-USDT$20.00
0.0059749 Eth
$9,320,941.00
456,502.820 LINK
3.0907%
10
Azbit
LINK-USDT$19.98
0.0059722 Eth
$9,204,690.00
450,789.479 LINK
3.0520%
11
Coinstore
LINK-USDT$20.05
0.0059794 Eth
$8,256,914.00
404,520.830 LINK
2.7387%
12
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$19.97
0.0059652 Eth
$7,978,394.00
392,536.066 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.6576%
13
Binance
LINK-FDUSD$20.02
0.0059804 Eth
$7,749,599.00
380,134.910 LINK
2.5736%
14
Bitunix
LINK-USDT$20.00
0.0059719 Eth
$6,901,513.00
345,205.570 LINK
2.3372%
15
LBank
LINK-USDT$19.99
0.0059756 Eth
$5,933,445.00
296,794.350 LINK
2.0094%
16
Binance
LINK-USDC$20.02
0.0059720 Eth
$5,871,183.00
288,950.480 LINK
1.9563%
17
BYDFi
LINK-USDT$20.00
0.0059744 Eth
$5,692,654.00
284,621.630 LINK
1.9270%
18
BTSE
LINK-USDT$20.02
0.0059767 Eth
$5,575,211.00
278,535.000 LINK
1.8858%
19
Biconomy.com
LINK-USDT$20.00
0.0059724 Eth
$5,567,160.00
273,069.440 LINK
1.8488%
20
LATOKEN
LINK-USDT$20.01
0.0059766 Eth
$4,456,128.00
222,692.638 LINK
1.5077%
21
Hotcoin
LINK-USDT$20.01
0.0059760 Eth
$3,801,682.00
189,957.770 LINK
1.2861%
22
QMall
LINK-USDT$20.01
0.0059751 Eth
$3,744,589.00
183,460.769 LINK
1.2421%
23
KuCoin
LINK-USDT$20.04
0.0059858 Eth
$3,392,349.00
169,249.146 LINK
1.1459%
24
Kraken
LINK-USD$19.99
0.0059699 Eth
$3,303,815.00
165,270.722 LINK
1.1189%
25
Dex-Trade
LINK-USDT$20.02
0.0059790 Eth
$2,920,458.00
145,873.439 LINK
0.9876%
26
Bitstamp
LINK-EUR$20.03
0.0059812 Eth
$2,899,014.00
144,753.706 LINK
0.9800%
27
Bitvavo
LINK-EUR$19.95
0.0059618 Eth
$2,485,075.00
124,593.530 LINK
0.8435%
28
FMCPAY
LINK-USDT$20.00
0.0059733 Eth
$2,342,632.00
115,029.282 LINK
0.7788%
29
Dcoin
LINK-USDT$20.01
0.0059799 Eth
$2,059,142.00
102,903.000 LINK
0.6967%
30
Bitstamp
LINK-USD$20.00
0.0059731 Eth
$1,957,491.00
97,874.571 LINK
0.6626%
31
Bitbank
LINK-JPY$20.04
0.0059834 Eth
$1,728,184.00
86,254.381 LINK
0.5840%
32
CoinEx
LINK-USDT$20.03
0.0059804 Eth
$1,662,269.00
81,834.843 LINK
0.5540%
33
PointPay
LINK-USDT$20.06
0.0059912 Eth
$1,518,356.00
74,392.489 LINK
0.5037%
34
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$20.03
0.0059794 Eth
$1,328,870.00
65,259.965 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4418%
35
FMCPAY
LINK-ETH$19.99
0.0059730 Eth
$1,241,450.00
61,262.880 LINK
0.4148%
36
EXMO
LINK-USDT$20.02
0.0059786 Eth
$1,219,925.00
60,935.474 LINK
0.4126%
37
FMCPAY
LINK-BTC$19.98
0.0059735 Eth
$1,184,305.00
58,194.600 LINK
0.3940%
38
Phemex
LINK-USDT$20.01
0.0059766 Eth
$1,067,040.00
53,324.780 LINK
0.3610%
39
tanX
LINK-USDC$20.01
0.0059818 Eth
$962,335.00
47,063.490 LINK
0.3186%
40
Coinbase Exchange
LINK-USDT$20.04
0.0059843 Eth
$899,594.00
44,892.351 LINK
0.3039%
41
Bybit
LINK-USDC$20.00
0.0059719 Eth
$894,034.00
43,851.505 LINK
0.2969%
42
WhiteBIT
LINK-BTC$20.00
0.0059712 Eth
$889,131.00
44,461.350 LINK
0.3010%
43
Coinbase Exchange
LINK-EUR$19.99
0.0059678 Eth
$869,705.00
43,516.100 LINK
0.2946%
44
WhiteBIT
LINK-TRY$20.13
0.0060113 Eth
$865,180.00
42,983.890 LINK
0.2910%
45
Trubit
LINK-USDT$19.98
0.0059728 Eth
$806,642.00
39,595.300 LINK
0.2681%
46
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.99
0.0059678 Eth
$752,056.00
37,112.069 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2513%
47
BitStorage
LINK-USDT$20.03
0.0059820 Eth
$734,123.00
36,649.620 LINK
0.2481%
48
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$19.97
0.0059634 Eth
$728,611.00
55,302.362 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.3744%
49
Gemini
LINK-USD$20.03
0.0059806 Eth
$664,001.00
33,158.210 LINK
0.2245%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$19.98
0.0059672 Eth
$619,682.00
30,815.581 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2086%
51
EarnBIT
LINK-USDT$20.01
0.0059768 Eth
$611,859.00
29,940.571 LINK
0.2027%
52
BigONE
LINK-USDT$20.01
0.0059760 Eth
$608,807.00
30,419.980 LINK
0.2060%
53
Binance
LINK-TRY$20.08
0.0059977 Eth
$589,228.00
28,643.270 LINK
0.1939%
54
Binance
LINK-EUR$19.97
0.0059676 Eth
$585,021.00
28,807.970 LINK
0.1950%
55
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$20.10
0.0060033 Eth
$507,916.00
24,752.187 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1676%
56
HashKey Exchange
LINK-USD$20.03
0.0059828 Eth
$486,255.00
23,599.476 LINK
0.1598%
57
QMall
LINK-USDC$20.05
0.0059775 Eth
$479,873.00
23,596.152 LINK
0.1598%
58
Koinpark
LINK-USDT$19.99
0.0059745 Eth
$466,999.00
23,362.536 LINK
0.1582%
59
Bitbegin
LINK-USDT$19.99
0.0059706 Eth
$438,462.00
21,519.732 LINK
0.1457%
60
KuCoin
LINK-USDC$20.09
0.0060010 Eth
$433,332.00
21,565.074 LINK
0.1460%
61
Coinbase Exchange
LINK-GBP$20.01
0.0059759 Eth
$376,156.00
18,795.670 LINK
0.1273%
62
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$19.98
0.0059672 Eth
$348,338.00
356,209.482 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.4117%
63
Slex
LINK-ETH$19.99
0.0059699 Eth
$341,473.00
16,842.990 LINK
0.1140%
64
WhiteBIT
LINK-EUR$19.91
0.0059519 Eth
$341,007.00
17,125.410 LINK
0.1159%
65
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$20.15
0.0060180 Eth
$324,451.00
15,994.447 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1083%
66
Coinbase Exchange
LINK-BTC$20.00
0.0059737 Eth
$296,256.00
14,810.270 LINK
0.1003%
67
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.97
0.0059636 Eth
$269,761.00
13,335.854 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0903%
68
BitMart
LINK-BTC$20.01
0.0059745 Eth
$256,563.00
12,824.200 LINK
0.0868%
69
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$19.97
0.0059633 Eth
$250,137.00
12,119.865 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0821%
70
BitDelta
LINK-USDT$20.02
0.0059761 Eth
$230,626.00
11,309.000 LINK
0.0766%
71
OKX
LINK-USDC$19.98
0.0059677 Eth
$228,920.00
11,254.475 LINK
0.0762%
72
Bitci TR
LINK-TRY$19.99
0.0059741 Eth
$206,752.00
10,125.994 LINK
0.0686%
73
Bitkub
LINK-THB$19.96
0.0059506 Eth
$182,770.00
9,156.162 LINK
0.0620%
74
Bitget
LINK-USDC$20.04
0.0059848 Eth
$150,520.00
7,249.570 LINK
0.0491%
75
Hotcoin
LINK-BTC$20.03
0.0059825 Eth
$147,439.00
7,360.250 LINK
0.0498%
76
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$20.01
0.0059775 Eth
$141,054.00
6,897.941 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0467%
77
BYDFi
LINK-USDC$19.95
0.0059642 Eth
$136,726.00
6,852.180 LINK
0.0464%
78
LATOKEN
LINK-BTC$20.02
0.0059792 Eth
$130,629.00
6,525.299 LINK
0.0442%
79
Coinbase Exchange
LINK-ETH$19.96
0.0059636 Eth
$129,493.00
6,488.940 LINK
0.0439%
80
BitMart
LINK-ETH$20.00
0.0059717 Eth
$127,971.00
6,398.780 LINK
0.0433%
81
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$19.98
0.0059670 Eth
$124,692.00
6,111.328 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0414%
82
Kraken
LINK-ETH$20.03
0.0059832 Eth
$123,152.00
6,146.867 LINK
0.0416%
83
BitStorage
LINK-ETH$19.97
0.0059645 Eth
$109,370.00
5,476.120 LINK
0.0371%
84
PointPay
LINK-BTC$19.99
0.0059754 Eth
$99,125.00
4,865.488 LINK
0.0329%
85
Kraken
LINK-GBP$20.01
0.0059771 Eth
$97,457.00
4,869.377 LINK
0.0330%
86
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$20.03
0.0059813 Eth
$96,386.00
4,756.744 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0322%
87
BTCMarkets
LINK-AUD$20.22
0.0060454 Eth
$94,222.00
4,658.794 LINK
0.0315%
88
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$20.02
0.0059795 Eth
$92,726.00
4,554.288 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0308%
89
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$19.91
0.0059459 Eth
$92,135.00
4,582.227 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0310%
90
Foxbit
LINK-BRL$20.17
0.0060275 Eth
$89,736.00
4,351.081 LINK
0.0295%
91
Bitso
LINK-USD$20.02
0.0059857 Eth
$71,537.00
3,572.419 LINK
0.0242%
92
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$19.99
0.0059676 Eth
$64,543.00
3,135.879 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0212%
93
Binance US
LINK-USDT$20.04
0.0059814 Eth
$64,520.00
3,219.011 LINK
0.0218%
94
Gemini
LINK-BTC$20.15
0.0060189 Eth
$56,800.00
2,818.343 LINK
0.0191%
95
Hotcoin
LINK-ETH$20.08
0.0059835 Eth
$55,486.00
2,763.880 LINK
0.0187%
96
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$20.03
0.0059794 Eth
$41,229.00
42,535.762 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.2880%
97
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$20.02
0.0059797 Eth
$34,344.00
1,693.118 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0115%
98
Bitstamp
LINK-GBP$20.13
0.0060106 Eth
$24,036.00
1,194.314 LINK
0.0081%
99
LFJ
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$19.85
0.0059259 Eth
$23,663.00
1,181.922 0X5947BB275C521040051D82396192181B413227A3
0.0080%
100
Dex-Trade
LINK-ETH$19.99
0.0059677 Eth
$14,531.59
727.110 LINK
0.0049%

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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