ETH Price: $3,591.26 (+3.75%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

729,322 ( 0.003%)

Market

Price

$23.31 @ 0.006491 ETH (+4.85%)

Onchain Market Cap

$23,310,000,000.00

Circulating Supply Market Cap

$14,719,404,266.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0x99bfe54a8a15e720f6589f43966f02ec30240cec
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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 21090.91% |ETH 0.0003846 1587.73%

Market

Volume (24H):$1,223,484,025.00
Market Capitalization:$14,719,404,266.00
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$23.28
0.0064834 Eth
$45,092,182.00
1,936,783.010 LINK
8.9488%
2
Upbit
LINK-KRW$23.40
0.0065191 Eth
$36,154,025.00
1,544,807.870 LINK
7.1377%
3
Bitget
LINK-USDT$23.29
0.0064873 Eth
$32,180,250.00
1,405,668.145 LINK
6.4948%
4
P2B
LINK-USDT$23.33
0.0064917 Eth
$30,572,367.00
1,310,349.380 LINK
6.0544%
5
MEXC
LINK-USDT$23.32
0.0065006 Eth
$28,059,558.00
1,203,168.550 LINK
5.5592%
6
Bybit
LINK-USDT$23.29
0.0064874 Eth
$27,025,233.00
1,181,572.614 LINK
5.4594%
7
OKX
LINK-USDT$23.27
0.0064799 Eth
$22,154,744.00
968,761.920 LINK
4.4761%
8
Slex
LINK-USDT$23.28
0.0064804 Eth
$21,921,827.00
960,989.680 LINK
4.4402%
9
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.37
0.0065072 Eth
$21,382,552.00
917,987.122 0X514910771AF9CA656AF840DFF83E8264ECF986CA
4.2415%
10
DigiFinex
LINK-USDT$23.28
0.0064839 Eth
$18,617,384.00
799,819.350 LINK
3.6955%
11
FameEX
LINK-USDT$23.38
0.0065102 Eth
$14,220,886.00
624,175.191 LINK
2.8840%
12
XT.COM
LINK-USDT$23.26
0.0064776 Eth
$14,151,731.00
621,091.960 LINK
2.8697%
13
Coinstore
LINK-USDT$23.32
0.0064994 Eth
$12,848,313.00
564,009.450 LINK
2.6060%
14
Bitunix
LINK-USDT$23.28
0.0064845 Eth
$11,164,626.00
479,592.120 LINK
2.2159%
15
Binance
LINK-FDUSD$23.33
0.0064912 Eth
$9,567,495.00
417,909.930 LINK
1.9309%
16
HTX
LINK-USDT$23.28
0.0064845 Eth
$9,424,223.00
412,008.430 LINK
1.9037%
17
BYDFi
LINK-USDT$23.31
0.0064977 Eth
$9,390,332.00
402,800.650 LINK
1.8611%
18
Kraken
LINK-USD$23.26
0.0064801 Eth
$8,227,312.00
353,659.818 LINK
1.6341%
19
Biconomy.com
LINK-USDT$23.32
0.0064948 Eth
$8,184,699.00
357,887.460 LINK
1.6536%
20
Bithumb
LINK-KRW$23.38
0.0065135 Eth
$7,918,908.00
338,659.142 LINK
1.5648%
21
LBank
LINK-USDT$23.29
0.0064877 Eth
$7,149,466.00
306,966.290 LINK
1.4183%
22
LATOKEN
LINK-USDT$23.29
0.0064922 Eth
$6,890,783.00
295,858.181 LINK
1.3670%
23
Binance
LINK-USDC$23.29
0.0064872 Eth
$6,118,589.00
266,444.950 LINK
1.2311%
24
QMall
LINK-USDT$23.28
0.0064849 Eth
$5,552,000.00
243,414.083 LINK
1.1247%
25
Dex-Trade
LINK-USDT$23.38
0.0065056 Eth
$4,688,404.00
200,518.170 LINK
0.9265%
26
FMCPAY
LINK-USDT$23.30
0.0064896 Eth
$3,670,104.00
160,300.037 LINK
0.7407%
27
Hotcoin
LINK-USDT$23.32
0.0064888 Eth
$3,670,008.00
157,395.730 LINK
0.7272%
28
KuCoin
LINK-USDT$23.30
0.0064911 Eth
$3,550,440.00
152,347.272 LINK
0.7039%
29
BTSE
LINK-USDT$23.31
0.0064976 Eth
$3,329,946.00
142,849.918 LINK
0.6600%
30
CoinEx
LINK-USDT$23.30
0.0064956 Eth
$3,183,734.00
137,511.251 LINK
0.6354%
31
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.36
0.0065122 Eth
$2,894,652.00
124,317.524 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5744%
32
PointPay
LINK-USDT$23.28
0.0064849 Eth
$2,182,701.00
95,648.188 LINK
0.4419%
33
Bitvavo
LINK-EUR$23.21
0.0064687 Eth
$2,161,092.00
93,117.269 LINK
0.4302%
34
Dcoin
LINK-USDT$23.27
0.0064813 Eth
$2,158,002.00
92,739.000 LINK
0.4285%
35
EXMO
LINK-USDT$23.27
0.0064821 Eth
$2,038,065.00
87,573.495 LINK
0.4046%
36
Phemex
LINK-USDT$23.26
0.0064793 Eth
$1,600,877.00
68,823.720 LINK
0.3180%
37
ProBit Global
LINK-USDT$23.25
0.0064712 Eth
$1,576,921.00
67,823.051 LINK
0.3134%
38
FMCPAY
LINK-ETH$23.28
0.0064845 Eth
$1,541,263.00
66,230.880 LINK
0.3060%
39
FMCPAY
LINK-BTC$23.27
0.0064815 Eth
$1,504,983.00
65,529.500 LINK
0.3028%
40
Kraken
LINK-EUR$23.34
0.0065016 Eth
$1,473,340.00
63,123.610 LINK
0.2917%
41
Coinbase Exchange
LINK-EUR$23.33
0.0064959 Eth
$1,462,851.00
62,710.980 LINK
0.2898%
42
tanX
LINK-USDC$23.28
0.0064909 Eth
$1,266,218.00
55,558.600 LINK
0.2567%
43
BitStorage
LINK-USDT$23.32
0.0064869 Eth
$1,169,295.00
50,150.170 LINK
0.2317%
44
Bybit
LINK-USDC$23.29
0.0064869 Eth
$1,155,828.00
50,135.740 LINK
0.2316%
45
Kraken
LINK-USDT$23.29
0.0064871 Eth
$1,126,129.00
48,355.254 LINK
0.2234%
46
WhiteBIT
LINK-BTC$23.30
0.0064888 Eth
$1,044,714.00
44,835.740 LINK
0.2072%
47
EarnBIT
LINK-USDT$23.41
0.0065185 Eth
$1,021,720.00
44,669.318 LINK
0.2064%
48
Bitbank
LINK-JPY$23.30
0.0064906 Eth
$1,001,185.00
42,963.125 LINK
0.1985%
49
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.43
0.0065261 Eth
$944,891.00
40,474.761 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1870%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.30
0.0064883 Eth
$867,012.00
37,079.370 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1713%
51
Gemini
LINK-USD$23.31
0.0064931 Eth
$830,049.00
35,608.959 LINK
0.1645%
52
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.15
0.0064533 Eth
$778,758.00
33,430.243 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1545%
53
Binance
LINK-EUR$23.41
0.0065151 Eth
$764,988.00
33,620.050 LINK
0.1553%
54
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$23.34
0.0064993 Eth
$746,758.00
49,833.975 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2303%
55
Koinpark
LINK-USDT$23.29
0.0064877 Eth
$743,289.00
31,913.543 LINK
0.1475%
56
WhiteBIT
LINK-TRY$23.25
0.0064759 Eth
$743,097.00
31,954.460 LINK
0.1476%
57
Coinbase Exchange
LINK-GBP$23.32
0.0064934 Eth
$734,544.00
31,501.200 LINK
0.1455%
58
itBit
LINK-USD$23.22
0.0064664 Eth
$692,329.00
29,816.065 LINK
0.1378%
59
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$23.41
0.0065177 Eth
$623,148.00
26,899.509 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1243%
60
Binance
LINK-TRY$23.22
0.0064670 Eth
$619,349.00
27,028.670 LINK
0.1249%
61
ProBit Global
LINK-BTC$23.29
0.0064827 Eth
$613,665.00
26,349.424 LINK
0.1217%
62
BigONE
LINK-USDT$23.30
0.0064876 Eth
$570,356.00
24,483.520 LINK
0.1131%
63
Coinbase Exchange
LINK-ETH$23.27
0.0064829 Eth
$512,289.00
22,011.660 LINK
0.1017%
64
Bitbegin
LINK-USDT$23.34
0.0064949 Eth
$479,456.00
21,025.010 LINK
0.0971%
65
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.37
0.0065139 Eth
$448,206.00
19,223.168 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0888%
66
Coinbase Exchange
LINK-BTC$23.27
0.0064828 Eth
$445,893.00
19,157.690 LINK
0.0885%
67
HashKey Exchange
LINK-USD$23.21
0.0064584 Eth
$444,390.00
19,794.906 LINK
0.0915%
68
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.37
0.0065146 Eth
$444,116.00
429,347.929 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.9838%
69
Slex
LINK-ETH$23.31
0.0064919 Eth
$425,802.00
18,304.910 LINK
0.0846%
70
Coinbase Exchange
LINK-USDT$23.30
0.0064950 Eth
$393,038.00
16,866.705 LINK
0.0779%
71
Bitkub
LINK-THB$23.17
0.0064532 Eth
$391,314.00
16,887.559 LINK
0.0780%
72
Bitget
LINK-EUR$23.30
0.0064892 Eth
$322,243.00
14,195.110 LINK
0.0656%
73
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.28
0.0064849 Eth
$307,636.00
302,040.569 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.3956%
74
BTCMarkets
LINK-AUD$23.05
0.0064179 Eth
$286,901.00
12,448.847 LINK
0.0575%
75
BitMart
LINK-BTC$23.32
0.0064934 Eth
$283,993.00
12,179.380 LINK
0.0563%
76
KuCoin
LINK-USDC$23.29
0.0064875 Eth
$266,406.00
11,437.745 LINK
0.0528%
77
LATOKEN
LINK-BTC$23.36
0.0065003 Eth
$265,532.00
11,368.360 LINK
0.0525%
78
OKX
LINK-USDC$23.31
0.0064929 Eth
$263,952.00
11,498.933 LINK
0.0531%
79
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.43
0.0065295 Eth
$261,261.00
11,425.950 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0528%
80
BitDelta
LINK-USDT$23.31
0.0064913 Eth
$233,179.00
10,210.000 LINK
0.0472%
81
Bitci TR
LINK-TRY$23.22
0.0064668 Eth
$231,020.00
10,129.930 LINK
0.0468%
82
Coinone
LINK-KRW$23.42
0.0065229 Eth
$217,718.00
9,297.348 LINK
0.0430%
83
PointPay
LINK-BTC$23.28
0.0064844 Eth
$196,496.00
8,493.665 LINK
0.0392%
84
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.28
0.0064849 Eth
$190,818.00
8,158.109 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0377%
85
BitStorage
LINK-ETH$23.32
0.0064949 Eth
$175,514.00
7,527.410 LINK
0.0348%
86
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$23.33
0.0064986 Eth
$169,579.00
7,292.409 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0337%
87
Binance
LINK-BRL$23.45
0.0065367 Eth
$162,262.00
6,972.240 LINK
0.0322%
88
Binance US
LINK-USDT$23.32
0.0064937 Eth
$157,289.00
6,745.197 LINK
0.0312%
89
Bitso
LINK-USD$23.25
0.0064713 Eth
$143,870.00
6,187.625 LINK
0.0286%
90
Hotcoin
LINK-BTC$23.31
0.0064928 Eth
$132,674.00
5,691.370 LINK
0.0263%
91
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.28
0.0064832 Eth
$132,383.00
5,686.796 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0263%
92
EXMO
LINK-BTC$23.29
0.0064871 Eth
$125,285.00
5,379.207 LINK
0.0249%
93
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.28
0.0064849 Eth
$96,439.00
4,216.373 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0195%
94
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.28
0.0064820 Eth
$92,011.00
4,091.958 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0189%
95
BitMart
LINK-ETH$23.32
0.0064944 Eth
$88,658.00
3,801.580 LINK
0.0176%
96
Mercado Bitcoin
LINK-BRL$23.41
0.0065206 Eth
$82,974.00
3,544.286 LINK
0.0164%
97
Kraken
LINK-GBP$23.20
0.0064621 Eth
$74,272.00
3,201.564 LINK
0.0148%
98
Independent Reserve
LINK-AUD$23.19
0.0064588 Eth
$70,104.00
3,023.124 LINK
0.0140%
99
Coins.ph
LINK-PHP$23.23
0.0064672 Eth
$51,934.00
2,264.770 LINK
0.0105%
100
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.25
0.0064749 Eth
$50,548.00
2,171.683 0X514910771AF9CA656AF840DFF83E8264ECF986CA
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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