ETH Price: $2,937.55 (+4.17%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

722,718 ( 0.000%)

Market

Price

$13.13 @ 0.004470 ETH (+6.83%)

Onchain Market Cap

$13,130,000,000.00

Circulating Supply Market Cap

$8,223,927,419.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
bufftuck.eth
Balance
0 LINK

Value
$0.00
0x521cf86848e5a240232bbc6678aa4aa89a28a43d
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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 11836.36% |ETH 0.0003846 1062.25%

Market

Volume (24H):$610,260,522.00
Market Capitalization:$8,223,927,419.00
Circulating Supply:626,849,971.00 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$13.23
0.0045128 Eth
$49,536,593.00
3,905,776.380 LINK
18.1641%
2
Coinbase Exchange
LINK-USD$13.26
0.0045240 Eth
$26,961,756.00
2,033,008.260 LINK
9.4546%
3
HTX
LINK-USDT$13.22
0.0045125 Eth
$13,369,279.00
1,058,528.828 LINK
4.9228%
4
MEXC
LINK-USDT$13.14
0.0044840 Eth
$12,358,893.00
940,276.280 LINK
4.3728%
5
P2B
LINK-USDT$13.22
0.0045106 Eth
$10,626,936.00
803,687.870 LINK
3.7376%
6
BTSE
LINK-USDT$13.15
0.0045034 Eth
$9,982,788.00
759,058.023 LINK
3.5300%
7
Bybit
LINK-USDT$13.25
0.0045162 Eth
$9,651,372.00
760,818.383 LINK
3.5382%
8
Bitget
LINK-USDT$13.24
0.0045152 Eth
$9,647,640.00
764,366.957 LINK
3.5547%
9
Gate.io
LINK-USDT$13.26
0.0045235 Eth
$8,212,695.00
650,152.680 LINK
3.0236%
10
Hotcoin
LINK-USDT$13.24
0.0045179 Eth
$7,679,720.00
580,107.050 LINK
2.6978%
11
Slex
LINK-USDT$13.09
0.0044852 Eth
$7,633,216.00
604,349.420 LINK
2.8106%
12
OKX
LINK-USDT$13.24
0.0045156 Eth
$7,119,525.00
560,391.404 LINK
2.6061%
13
Bitunix
LINK-USDT$13.24
0.0045145 Eth
$6,618,188.00
499,855.950 LINK
2.3246%
14
DigiFinex
LINK-USDT$13.27
0.0045208 Eth
$6,590,919.00
496,847.420 LINK
2.3106%
15
Upbit
LINK-KRW$13.20
0.0045022 Eth
$5,807,645.00
439,869.815 LINK
2.0456%
16
Ourbit
LINK-USDT$13.14
0.0044881 Eth
$5,474,554.00
432,016.710 LINK
2.0091%
17
XT.COM
LINK-USDT$13.23
0.0045139 Eth
$4,955,934.00
390,615.990 LINK
1.8166%
18
CoinW
LINK-USDT$13.16
0.0044994 Eth
$4,892,856.00
371,686.060 LINK
1.7285%
19
Azbit
LINK-USDT$13.11
0.0044752 Eth
$4,748,648.00
377,091.550 LINK
1.7537%
20
Binance
LINK-FDUSD$13.26
0.0045224 Eth
$4,255,623.00
334,425.970 LINK
1.5553%
21
Biconomy.com
LINK-USDT$13.14
0.0044859 Eth
$4,156,508.00
328,425.000 LINK
1.5274%
22
Coinstore
LINK-USDT$13.22
0.0045149 Eth
$3,554,604.00
280,041.000 LINK
1.3023%
23
KuCoin
LINK-USDT$13.26
0.0045196 Eth
$2,952,525.00
222,628.999 LINK
1.0353%
24
LBank
LINK-USDT$13.15
0.0044883 Eth
$2,508,945.00
190,764.070 LINK
0.8872%
25
C-Patex
LINK-USDT$13.12
0.0044926 Eth
$2,464,790.00
187,936.424 LINK
0.8740%
26
BYDFi
LINK-USDT$13.12
0.0044965 Eth
$2,442,135.00
186,083.010 LINK
0.8654%
27
LATOKEN
LINK-USDT$13.13
0.0045013 Eth
$2,336,338.00
177,881.166 LINK
0.8272%
28
ProBit Global
LINK-USDT$13.23
0.0045129 Eth
$2,318,958.00
175,264.456 LINK
0.8151%
29
Tokpie
LINK-USDT$13.11
0.0044718 Eth
$2,117,776.00
161,552.508 LINK
0.7513%
30
WhiteBIT
LINK-BTC$13.16
0.0045049 Eth
$2,091,045.00
158,841.880 LINK
0.7387%
31
Trubit
LINK-USDT$13.16
0.0044904 Eth
$1,850,335.00
146,901.340 LINK
0.6832%
32
AscendEX (BitMax)
LINK-USDT$13.17
0.0044919 Eth
$1,829,690.00
138,950.100 LINK
0.6462%
33
Bithumb
LINK-KRW$13.25
0.0045181 Eth
$1,736,477.00
131,091.259 LINK
0.6096%
34
Dex-Trade
LINK-USDT$13.11
0.0044925 Eth
$1,673,917.00
127,642.870 LINK
0.5936%
35
Binance
LINK-USDC$13.25
0.0045194 Eth
$1,597,763.00
126,585.970 LINK
0.5887%
36
Bitvavo
LINK-EUR$13.26
0.0045197 Eth
$1,526,304.00
115,084.384 LINK
0.5352%
37
HashKey Global
LINK-USDT$13.15
0.0044924 Eth
$1,101,238.00
88,071.878 LINK
0.4096%
38
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$13.10
0.0044668 Eth
$1,073,099.00
84,005.786 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3907%
39
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$13.23
0.0045075 Eth
$1,035,371.00
80,430.759 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.3740%
40
CoinEx
LINK-USDT$13.19
0.0045048 Eth
$1,032,949.00
81,400.005 LINK
0.3786%
41
Azbit
LINK-ETH$13.11
0.0044724 Eth
$954,272.00
74,327.034 LINK
0.3457%
42
BigONE
LINK-USDT$13.23
0.0045224 Eth
$851,023.00
64,326.790 LINK
0.2992%
43
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$13.22
0.0045070 Eth
$824,650.00
63,903.456 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2972%
44
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$13.15
0.0044850 Eth
$818,872.00
59,874.185 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2784%
45
tanX
LINK-USDC$13.15
0.0044865 Eth
$775,704.00
61,406.520 LINK
0.2856%
46
WhiteBIT
LINK-TRY$13.12
0.0044776 Eth
$764,371.00
58,280.270 LINK
0.2710%
47
PointPay
LINK-USDT$13.23
0.0045094 Eth
$544,719.00
42,915.367 LINK
0.1996%
48
Phemex
LINK-USDT$13.14
0.0045048 Eth
$532,020.00
40,496.030 LINK
0.1883%
49
Bitbank
LINK-JPY$13.23
0.0045212 Eth
$493,995.00
37,345.381 LINK
0.1737%
50
itBit
LINK-USD$13.06
0.0044775 Eth
$482,503.00
36,945.127 LINK
0.1718%
51
ProBit Global
LINK-BTC$13.23
0.0045120 Eth
$481,160.00
36,372.969 LINK
0.1692%
52
LATOKEN
LINK-BTC$13.13
0.0045004 Eth
$472,812.00
36,006.140 LINK
0.1674%
53
EXMO
LINK-USDT$13.27
0.0045255 Eth
$471,468.00
35,533.848 LINK
0.1653%
54
BitStorage
LINK-USDT$13.22
0.0045117 Eth
$414,066.00
31,320.740 LINK
0.1457%
55
KickEX
LINK-USDT$13.21
0.0045132 Eth
$400,236.00
30,292.408 LINK
0.1409%
56
Coinbase Exchange
LINK-EUR$13.24
0.0045109 Eth
$396,404.00
29,947.500 LINK
0.1393%
57
WhiteBIT
LINK-EUR$13.18
0.0044978 Eth
$392,194.00
29,752.930 LINK
0.1384%
58
EarnBIT
LINK-USDT$13.18
0.0045006 Eth
$332,595.00
26,180.398 LINK
0.1218%
59
Binance
LINK-EUR$13.14
0.0045026 Eth
$321,305.00
25,350.210 LINK
0.1179%
60
Bybit
LINK-USDC$13.25
0.0045169 Eth
$306,050.00
24,119.946 LINK
0.1122%
61
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$13.18
0.0044958 Eth
$299,451.00
23,674.975 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1101%
62
BYDFi
LINK-USDC$13.14
0.0044874 Eth
$250,802.00
19,091.540 LINK
0.0888%
63
Gemini
LINK-USD$13.25
0.0045172 Eth
$249,200.00
18,811.771 LINK
0.0875%
64
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$13.16
0.0044888 Eth
$240,691.00
18,642.911 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0867%
65
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$13.23
0.0045125 Eth
$230,885.00
18,145.877 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0844%
66
GMO Japan
LINK-JPY$13.19
0.0045031 Eth
$229,681.00
17,406.800 LINK
0.0810%
67
Binance
LINK-BNB$13.15
0.0045060 Eth
$224,324.00
17,712.304 LINK
0.0824%
68
BitMart
LINK-BTC$13.14
0.0044922 Eth
$220,683.00
16,790.880 LINK
0.0781%
69
Slex
LINK-ETH$13.22
0.0045067 Eth
$220,482.00
17,151.520 LINK
0.0798%
70
Coinbase Exchange
LINK-GBP$13.22
0.0045158 Eth
$218,068.00
16,495.430 LINK
0.0767%
71
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$13.09
0.0044663 Eth
$209,492.00
202,582.885 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.9421%
72
BitDelta
LINK-USDT$13.21
0.0045071 Eth
$184,285.00
14,583.000 LINK
0.0678%
73
Binance
LINK-TRY$13.11
0.0044825 Eth
$173,681.00
13,721.780 LINK
0.0638%
74
Bitkub
LINK-THB$13.20
0.0045013 Eth
$164,330.00
12,448.918 LINK
0.0579%
75
OKX
LINK-USDC$13.23
0.0045117 Eth
$159,043.00
12,626.257 LINK
0.0587%
76
Kraken
LINK-AUD$13.18
0.0044920 Eth
$147,264.00
11,172.387 LINK
0.0520%
77
Slex
LINK-BTC$13.09
0.0044863 Eth
$137,026.00
10,766.400 LINK
0.0501%
78
Bitci TR
LINK-TRY$13.08
0.0044714 Eth
$127,831.00
10,134.020 LINK
0.0471%
79
Coinbase Exchange
LINK-ETH$13.18
0.0045055 Eth
$109,900.00
8,338.190 LINK
0.0388%
80
PointPay
LINK-BTC$13.24
0.0045119 Eth
$96,937.00
7,597.437 LINK
0.0353%
81
Bitso
LINK-USD$13.14
0.0044905 Eth
$90,223.00
6,867.398 LINK
0.0319%
82
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$13.09
0.0044663 Eth
$88,947.00
7,010.324 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0326%
83
Coinbase Exchange
LINK-BTC$13.25
0.0045168 Eth
$87,755.00
6,621.140 LINK
0.0308%
84
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$13.20
0.0045002 Eth
$85,678.00
6,634.780 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0309%
85
BitMart
LINK-ETH$13.19
0.0044999 Eth
$82,894.00
6,285.680 LINK
0.0292%
86
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$13.10
0.0044703 Eth
$72,764.00
69,225.410 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.3219%
87
BitStorage
LINK-ETH$13.13
0.0044987 Eth
$71,113.00
5,417.450 LINK
0.0252%
88
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$13.20
0.0045022 Eth
$70,798.00
5,633.917 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0262%
89
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$13.10
0.0044667 Eth
$68,128.00
65,849.442 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.3062%
90
Mercado Bitcoin
LINK-BRL$13.18
0.0044967 Eth
$63,420.00
4,810.570 LINK
0.0224%
91
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$13.11
0.0044679 Eth
$55,948.00
4,356.574 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0203%
92
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$13.11
0.0044722 Eth
$55,366.00
4,068.134 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0189%
93
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$13.19
0.0044994 Eth
$54,836.00
4,320.050 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0201%
94
Bitcointry
LINK-USDT$13.19
0.0044982 Eth
$51,390.00
4,033.376 LINK
0.0188%
95
BTCMarkets
LINK-AUD$13.10
0.0044779 Eth
$43,569.00
3,325.642 LINK
0.0155%
96
KuCoin
LINK-USDC$13.26
0.0045198 Eth
$40,776.00
3,074.500 LINK
0.0143%
97
Coinone
LINK-KRW$13.18
0.0044921 Eth
$36,345.00
2,757.276 LINK
0.0128%
98
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$13.14
0.0044766 Eth
$36,135.00
2,808.261 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0131%
99
EXMO
LINK-BTC$13.24
0.0045119 Eth
$30,224.00
2,282.845 LINK
0.0106%
100
Bitexen
LINK-TRY$12.98
0.0044315 Eth
$29,733.00
2,290.625 LINK
0.0107%

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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