ETH Price: $3,394.99 (+3.53%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

732,452 ( 0.024%)

Market

Price

$25.90 @ 0.007629 ETH (+3.77%)

Onchain Market Cap

$25,900,000,000.00

Circulating Supply Market Cap

$16,510,539,286.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
4,475.322245703227292048 LINK

Value
$115,910.85 ( ~34.1417 Eth) [0.0004%]
0xbAD8c0D8011e559b693e9EED987c8278F5b4c04c
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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 23445.45% |ETH 0.0003846 1883.62%

Market

Volume (24H):$890,531,233.00
Market Capitalization:$16,510,539,286.00
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
Binance
LINK-USDT$25.87
0.0076077 Eth
$117,575,628.00
4,659,786.970 LINK
22.9773%
2
Coinbase Exchange
LINK-USD$25.87
0.0076100 Eth
$51,149,019.00
1,977,537.960 LINK
9.7512%
3
Bybit
LINK-USDT$25.88
0.0076087 Eth
$38,874,684.00
1,541,823.438 LINK
7.6027%
4
P2B
LINK-USDT$25.89
0.0076104 Eth
$25,505,974.00
985,200.890 LINK
4.8580%
5
Gate.io
LINK-USDT$25.88
0.0076064 Eth
$20,529,118.00
816,029.180 LINK
4.0238%
6
OKX
LINK-USDT$25.89
0.0076127 Eth
$19,247,175.00
759,443.729 LINK
3.7448%
7
MEXC
LINK-USDT$25.91
0.0076187 Eth
$16,107,487.00
621,665.810 LINK
3.0654%
8
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$25.94
0.0076288 Eth
$16,024,152.00
616,017.284 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.0376%
9
DigiFinex
LINK-USDT$25.91
0.0076175 Eth
$15,665,153.00
604,650.610 LINK
2.9815%
10
HTX
LINK-USDT$25.86
0.0076043 Eth
$12,300,190.00
493,001.471 LINK
2.4310%
11
XT.COM
LINK-USDT$25.93
0.0076075 Eth
$11,666,224.00
462,543.500 LINK
2.2808%
12
Azbit
LINK-USDT$25.88
0.0076162 Eth
$11,536,672.00
456,767.405 LINK
2.2523%
13
Coinstore
LINK-USDT$25.88
0.0076089 Eth
$9,997,676.00
397,249.720 LINK
1.9588%
14
Bitunix
LINK-USDT$25.91
0.0076234 Eth
$9,630,796.00
371,764.840 LINK
1.8332%
15
Binance
LINK-USDC$25.93
0.0076134 Eth
$8,227,556.00
326,554.010 LINK
1.6102%
16
KuCoin
LINK-USDT$25.91
0.0076179 Eth
$7,981,941.00
308,113.077 LINK
1.5193%
17
Binance
LINK-FDUSD$25.88
0.0076164 Eth
$7,957,627.00
316,539.550 LINK
1.5609%
18
BYDFi
LINK-USDT$25.93
0.0076303 Eth
$6,737,309.00
259,837.190 LINK
1.2813%
19
LBank
LINK-USDT$25.88
0.0076098 Eth
$5,914,464.00
228,532.560 LINK
1.1269%
20
LATOKEN
LINK-USDT$25.91
0.0076250 Eth
$5,755,180.00
222,131.028 LINK
1.0953%
21
BTSE
LINK-USDT$25.93
0.0076278 Eth
$5,736,596.00
221,271.686 LINK
1.0911%
22
Kraken
LINK-USD$25.91
0.0076183 Eth
$5,733,644.00
221,313.161 LINK
1.0913%
23
Hotcoin
LINK-USDT$25.94
0.0076332 Eth
$4,903,316.00
189,032.776 LINK
0.9321%
24
QMall
LINK-USDT$25.86
0.0076206 Eth
$4,775,029.00
189,187.148 LINK
0.9329%
25
Bitvavo
LINK-EUR$25.84
0.0075954 Eth
$4,448,182.00
172,148.730 LINK
0.8489%
26
Coinbase Exchange
LINK-EUR$25.89
0.0076114 Eth
$3,897,798.00
150,535.790 LINK
0.7423%
27
FMCPAY
LINK-USDT$25.90
0.0076190 Eth
$3,775,426.00
150,535.238 LINK
0.7423%
28
Dex-Trade
LINK-USDT$25.89
0.0076093 Eth
$3,678,131.00
142,054.451 LINK
0.7005%
29
CoinEx
LINK-USDT$25.87
0.0076261 Eth
$2,783,208.00
110,285.887 LINK
0.5438%
30
Biconomy.com
LINK-USDT$26.02
0.0076165 Eth
$2,347,657.00
93,570.290 LINK
0.4614%
31
PointPay
LINK-USDT$25.92
0.0076280 Eth
$1,899,470.00
75,177.382 LINK
0.3707%
32
FMCPAY
LINK-ETH$25.88
0.0076128 Eth
$1,837,437.00
70,997.040 LINK
0.3501%
33
Coinbase Exchange
LINK-GBP$25.88
0.0076090 Eth
$1,745,235.00
67,423.250 LINK
0.3325%
34
FMCPAY
LINK-BTC$25.87
0.0076093 Eth
$1,654,037.00
66,058.300 LINK
0.3257%
35
Phemex
LINK-USDT$25.92
0.0075981 Eth
$1,337,644.00
51,612.930 LINK
0.2545%
36
EXMO
LINK-USDT$25.90
0.0076148 Eth
$1,269,941.00
49,024.129 LINK
0.2417%
37
tanX
LINK-USDC$25.91
0.0076181 Eth
$1,249,108.00
49,924.200 LINK
0.2462%
38
Binance
LINK-TRY$25.79
0.0075821 Eth
$1,136,016.00
45,101.740 LINK
0.2224%
39
Bybit
LINK-USDC$25.88
0.0076092 Eth
$1,125,648.00
44,433.746 LINK
0.2191%
40
Kraken
LINK-USDT$25.93
0.0076241 Eth
$1,071,086.00
41,311.846 LINK
0.2037%
41
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.83
0.0075939 Eth
$972,577.00
37,536.972 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1851%
42
BitStorage
LINK-USDT$25.90
0.0075987 Eth
$959,472.00
37,050.220 LINK
0.1827%
43
Gemini
LINK-USD$25.86
0.0076026 Eth
$923,172.00
35,703.018 LINK
0.1761%
44
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$26.05
0.0076588 Eth
$909,492.00
72,005.149 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.3551%
45
EarnBIT
LINK-USDT$25.88
0.0076099 Eth
$896,850.00
35,390.362 LINK
0.1745%
46
Bitbank
LINK-JPY$25.92
0.0076196 Eth
$893,281.00
34,462.489 LINK
0.1699%
47
Trubit
LINK-USDT$25.83
0.0076098 Eth
$868,212.00
34,843.530 LINK
0.1718%
48
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$25.82
0.0075899 Eth
$862,869.00
33,295.163 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1642%
49
Coinbase Exchange
LINK-USDT$25.91
0.0076167 Eth
$829,399.00
32,008.554 LINK
0.1578%
50
itBit
LINK-USD$25.88
0.0076076 Eth
$803,679.00
31,054.065 LINK
0.1531%
51
WhiteBIT
LINK-TRY$25.75
0.0075683 Eth
$781,863.00
30,367.080 LINK
0.1497%
52
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.90
0.0076194 Eth
$756,471.00
29,059.006 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1433%
53
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$25.99
0.0076406 Eth
$740,126.00
29,119.418 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1436%
54
Binance
LINK-EUR$25.97
0.0076209 Eth
$716,646.00
28,364.310 LINK
0.1399%
55
OKX
LINK-USDC$25.86
0.0076041 Eth
$703,575.00
27,849.457 LINK
0.1373%
56
BigONE
LINK-USDT$26.09
0.0076336 Eth
$696,189.00
26,687.370 LINK
0.1316%
57
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$25.88
0.0076060 Eth
$651,154.00
25,682.477 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1266%
58
QMall
LINK-USDC$25.90
0.0076125 Eth
$647,351.00
25,664.406 LINK
0.1266%
59
HashKey Exchange
LINK-USD$25.83
0.0075953 Eth
$613,376.00
24,492.703 LINK
0.1208%
60
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$25.83
0.0075939 Eth
$529,643.00
516,114.379 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.5450%
61
LATOKEN
LINK-BTC$25.87
0.0076150 Eth
$513,488.00
19,845.029 LINK
0.0979%
62
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$25.87
0.0076043 Eth
$462,028.00
17,815.960 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0879%
63
BitDelta
LINK-USDT$26.09
0.0076561 Eth
$457,897.00
18,182.000 LINK
0.0897%
64
Coinbase Exchange
LINK-ETH$25.94
0.0076274 Eth
$431,331.00
16,628.070 LINK
0.0820%
65
Coinbase Exchange
LINK-BTC$25.87
0.0076111 Eth
$401,465.00
15,519.300 LINK
0.0765%
66
Kraken
LINK-GBP$25.85
0.0076004 Eth
$373,465.00
14,449.497 LINK
0.0713%
67
WhiteBIT
LINK-BTC$25.83
0.0075935 Eth
$359,016.00
13,897.700 LINK
0.0685%
68
GMO Japan
LINK-JPY$26.05
0.0076633 Eth
$349,477.00
13,417.500 LINK
0.0662%
69
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$25.83
0.0075883 Eth
$298,126.00
11,871.864 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0585%
70
BitMart
LINK-BTC$25.87
0.0076043 Eth
$291,119.00
11,253.320 LINK
0.0555%
71
Tokpie
LINK-USDT$26.06
0.0076659 Eth
$260,783.00
10,007.227 LINK
0.0493%
72
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$25.83
0.0075939 Eth
$259,290.00
10,390.709 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0512%
73
WhiteBIT
LINK-EUR$25.96
0.0076492 Eth
$255,242.00
9,833.010 LINK
0.0485%
74
Bitci TR
LINK-TRY$25.71
0.0075574 Eth
$250,787.00
10,076.095 LINK
0.0497%
75
BitStorage
LINK-ETH$25.93
0.0076249 Eth
$227,885.00
8,788.620 LINK
0.0433%
76
Bitkub
LINK-THB$25.92
0.0076183 Eth
$207,027.00
7,988.378 LINK
0.0394%
77
PointPay
LINK-BTC$25.86
0.0076027 Eth
$201,601.00
7,940.352 LINK
0.0392%
78
Foxbit
LINK-BRL$26.09
0.0076716 Eth
$192,011.00
7,469.452 LINK
0.0368%
79
Nonkyc.io
LINK-BTC$26.01
0.0076521 Eth
$181,153.00
7,146.327 LINK
0.0352%
80
Binance US
LINK-USDT$25.89
0.0076111 Eth
$176,205.00
6,805.410 LINK
0.0336%
81
Hotcoin
LINK-BTC$25.88
0.0076094 Eth
$170,351.00
6,582.350 LINK
0.0325%
82
Bitso
LINK-USD$25.85
0.0076044 Eth
$160,484.00
6,209.209 LINK
0.0306%
83
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$25.86
0.0076045 Eth
$154,766.00
6,192.806 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0305%
84
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$25.96
0.0076402 Eth
$148,612.00
5,719.501 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0282%
85
BYDFi
LINK-USDC$25.89
0.0076173 Eth
$139,442.00
5,386.980 LINK
0.0266%
86
Kraken
LINK-ETH$25.89
0.0076122 Eth
$137,715.00
5,319.951 LINK
0.0262%
87
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$26.03
0.0076500 Eth
$136,842.00
5,248.664 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0259%
88
KuCoin
LINK-USDC$25.97
0.0076378 Eth
$135,388.00
5,212.520 LINK
0.0257%
89
CoinTR
LINK-TRY$25.79
0.0075827 Eth
$125,187.00
5,029.800 LINK
0.0248%
90
Mercado Bitcoin
LINK-BRL$25.95
0.0076285 Eth
$120,654.00
4,649.350 LINK
0.0229%
91
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$25.96
0.0076340 Eth
$106,048.00
102,295.409 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.5044%
92
KuCoin
LINK-BTC$25.87
0.0076062 Eth
$93,525.00
3,615.739 LINK
0.0178%
93
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$25.84
0.0075989 Eth
$92,542.00
89,630.443 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.4420%
94
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$25.80
0.0075872 Eth
$91,627.00
3,637.245 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0179%
95
BitMart
LINK-ETH$25.90
0.0076141 Eth
$86,936.00
3,356.220 LINK
0.0165%
96
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8$25.96
0.0076395 Eth
$69,843.00
2,057.005 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0101%
97
BTCMarkets
LINK-AUD$26.20
0.0077028 Eth
$67,877.00
2,590.397 LINK
0.0128%
98
Hotcoin
LINK-ETH$25.88
0.0076118 Eth
$52,930.00
2,045.590 LINK
0.0101%
99
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$25.85
0.0075981 Eth
$44,443.00
1,747.379 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0086%
100
Dex-Trade
LINK-ETH$25.90
0.0076140 Eth
$29,511.00
1,139.360 LINK
0.0056%

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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