ETH Price: $3,696.61 (+1.65%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

729,906 ( 0.022%)

Market

Price

$23.99 @ 0.006490 ETH (+2.84%)

Onchain Market Cap

$23,990,000,000.00

Circulating Supply Market Cap

$15,141,366,538.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0x6bf9ecafd712c8fa8747002d23eb67daa0cc7c8d
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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 21709.09% |ETH 0.0003846 1587.47%

Market

Volume (24H):$1,246,942,090.00
Market Capitalization:$15,141,366,538.00
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
Binance
LINK-USDT$23.93
0.0064808 Eth
$136,305,102.00
5,700,547.620 LINK
18.5121%
2
Coinbase Exchange
LINK-USD$23.96
0.0064837 Eth
$50,914,299.00
2,125,236.850 LINK
6.9016%
3
WhiteBIT
LINK-USDT$23.94
0.0064778 Eth
$37,768,517.00
1,577,877.240 LINK
5.1240%
4
Bitget
LINK-USDT$23.94
0.0064835 Eth
$35,988,023.00
1,501,068.303 LINK
4.8746%
5
Bybit
LINK-USDT$23.95
0.0064855 Eth
$31,673,284.00
1,320,918.562 LINK
4.2896%
6
P2B
LINK-USDT$23.93
0.0064837 Eth
$27,147,735.00
1,134,589.130 LINK
3.6845%
7
MEXC
LINK-USDT$23.95
0.0064866 Eth
$27,009,604.00
1,127,666.850 LINK
3.6620%
8
Upbit
LINK-KRW$24.00
0.0064987 Eth
$26,372,343.00
1,099,003.649 LINK
3.5689%
9
Slex
LINK-USDT$24.02
0.0064986 Eth
$24,532,274.00
1,033,327.260 LINK
3.3557%
10
CoinW
LINK-USDT$23.94
0.0064896 Eth
$24,116,303.00
1,007,329.920 LINK
3.2712%
11
OKX
LINK-USDT$23.94
0.0064827 Eth
$21,397,481.00
895,125.164 LINK
2.9069%
12
DigiFinex
LINK-USDT$23.93
0.0064814 Eth
$17,520,707.00
732,082.260 LINK
2.3774%
13
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$24.19
0.0065515 Eth
$14,793,607.00
618,224.740 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.0076%
14
FameEX
LINK-USDT$23.93
0.0064871 Eth
$13,581,140.00
567,810.241 LINK
1.8439%
15
XT.COM
LINK-USDT$23.96
0.0064921 Eth
$13,574,632.00
567,373.220 LINK
1.8425%
16
Azbit
LINK-USDT$23.93
0.0064794 Eth
$13,493,437.00
564,183.005 LINK
1.8321%
17
Coinstore
LINK-USDT$23.92
0.0064746 Eth
$11,959,049.00
500,449.560 LINK
1.6252%
18
Bitunix
LINK-USDT$23.96
0.0064841 Eth
$10,561,404.00
440,637.300 LINK
1.4309%
19
HTX
LINK-USDT$23.93
0.0064832 Eth
$9,836,382.00
413,255.848 LINK
1.3420%
20
KuCoin
LINK-USDT$23.93
0.0064810 Eth
$9,133,830.00
381,668.748 LINK
1.2394%
21
Binance
LINK-FDUSD$23.92
0.0064833 Eth
$8,895,089.00
373,272.010 LINK
1.2122%
22
BYDFi
LINK-USDT$23.94
0.0064835 Eth
$8,789,082.00
367,123.400 LINK
1.1922%
23
LBank
LINK-USDT$23.92
0.0064781 Eth
$6,760,817.00
282,638.100 LINK
0.9178%
24
Bithumb
LINK-KRW$24.00
0.0064987 Eth
$6,664,318.00
277,719.353 LINK
0.9019%
25
LATOKEN
LINK-USDT$23.95
0.0064791 Eth
$6,640,098.00
277,271.339 LINK
0.9004%
26
Binance
LINK-USDC$23.99
0.0064907 Eth
$6,465,526.00
270,397.140 LINK
0.8781%
27
Kraken
LINK-USD$23.95
0.0064867 Eth
$6,301,329.00
263,079.463 LINK
0.8543%
28
Hotcoin
LINK-USDT$23.95
0.0064863 Eth
$6,081,468.00
253,916.154 LINK
0.8246%
29
QMall
LINK-USDT$23.95
0.0064837 Eth
$5,589,109.00
233,628.183 LINK
0.7587%
30
BTSE
LINK-USDT$23.95
0.0064803 Eth
$4,537,386.00
189,485.937 LINK
0.6153%
31
Dex-Trade
LINK-USDT$23.95
0.0064848 Eth
$4,418,883.00
184,473.750 LINK
0.5991%
32
CoinEx
LINK-USDT$23.97
0.0064851 Eth
$4,397,475.00
183,222.540 LINK
0.5950%
33
Biconomy.com
LINK-USDT$24.02
0.0064997 Eth
$4,233,897.00
178,392.410 LINK
0.5793%
34
Coinbase Exchange
LINK-EUR$23.96
0.0064882 Eth
$4,049,444.00
169,026.160 LINK
0.5489%
35
FMCPAY
LINK-USDT$24.01
0.0064965 Eth
$3,554,368.00
149,357.210 LINK
0.4850%
36
ProBit Global
LINK-USDT$23.96
0.0064879 Eth
$3,183,403.00
132,882.303 LINK
0.4315%
37
Bitvavo
LINK-EUR$23.98
0.0064868 Eth
$3,028,058.00
126,268.976 LINK
0.4100%
38
Kraken
LINK-EUR$23.96
0.0064887 Eth
$2,910,852.00
121,490.819 LINK
0.3945%
39
Coinbase Exchange
LINK-BTC$23.96
0.0064835 Eth
$2,867,784.00
119,684.740 LINK
0.3887%
40
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$24.08
0.0065260 Eth
$2,609,273.00
108,154.532 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3512%
41
Coinbase Exchange
LINK-USDT$23.99
0.0064957 Eth
$2,308,411.00
96,207.822 LINK
0.3124%
42
Dcoin
LINK-USDT$23.95
0.0064891 Eth
$2,306,275.00
96,306.000 LINK
0.3127%
43
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.95
0.0064885 Eth
$2,215,301.00
92,368.959 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3000%
44
PointPay
LINK-USDT$23.95
0.0064899 Eth
$2,153,335.00
89,990.534 LINK
0.2922%
45
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.97
0.0064945 Eth
$1,929,297.00
80,392.762 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2611%
46
Bybit
LINK-USDC$23.99
0.0064974 Eth
$1,917,286.00
80,120.881 LINK
0.2602%
47
EXMO
LINK-USDT$23.96
0.0064865 Eth
$1,857,604.00
77,527.661 LINK
0.2518%
48
WhiteBIT
LINK-BTC$23.96
0.0064833 Eth
$1,765,044.00
73,675.950 LINK
0.2393%
49
FMCPAY
LINK-ETH$23.95
0.0064867 Eth
$1,562,405.00
65,143.840 LINK
0.2116%
50
FMCPAY
LINK-BTC$23.97
0.0064838 Eth
$1,511,498.00
62,128.700 LINK
0.2018%
51
Phemex
LINK-USDT$23.95
0.0064833 Eth
$1,477,853.00
61,709.550 LINK
0.2004%
52
WhiteBIT
LINK-TRY$23.98
0.0064979 Eth
$1,385,061.00
57,769.840 LINK
0.1876%
53
tanX
LINK-USDC$23.93
0.0064802 Eth
$1,311,105.00
55,302.180 LINK
0.1796%
54
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.89
0.0064740 Eth
$1,168,782.00
48,710.003 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1582%
55
Gemini
LINK-USD$23.97
0.0064954 Eth
$1,097,067.00
45,766.714 LINK
0.1486%
56
BitStorage
LINK-USDT$23.98
0.0064882 Eth
$1,077,614.00
44,940.900 LINK
0.1459%
57
BigONE
LINK-USDT$23.93
0.0064735 Eth
$1,035,976.00
43,295.200 LINK
0.1406%
58
EarnBIT
LINK-USDT$23.92
0.0064823 Eth
$1,034,526.00
43,306.606 LINK
0.1406%
59
Trubit
LINK-USDT$24.01
0.0064981 Eth
$969,468.00
40,914.560 LINK
0.1329%
60
OKX
LINK-USDC$24.01
0.0065029 Eth
$937,595.00
38,661.532 LINK
0.1256%
61
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$24.00
0.0065025 Eth
$915,340.00
37,764.553 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1226%
62
Binance
LINK-EUR$23.93
0.0064874 Eth
$786,494.00
32,864.880 LINK
0.1067%
63
Coinbase Exchange
LINK-GBP$23.94
0.0064832 Eth
$781,026.00
32,625.540 LINK
0.1059%
64
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$24.03
0.0065108 Eth
$775,549.00
770,482.625 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.5021%
65
Bitbank
LINK-JPY$23.98
0.0064934 Eth
$755,654.00
31,516.172 LINK
0.1023%
66
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$24.05
0.0065083 Eth
$751,786.00
30,887.774 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1003%
67
Koinpark
LINK-USDT$23.97
0.0064850 Eth
$701,322.00
29,258.588 LINK
0.0950%
68
ProBit Global
LINK-BTC$23.95
0.0064826 Eth
$656,774.00
27,427.593 LINK
0.0891%
69
WhiteBIT
LINK-EUR$23.98
0.0064867 Eth
$613,042.00
25,569.180 LINK
0.0830%
70
HashKey Exchange
LINK-USD$23.92
0.0064748 Eth
$602,254.00
25,198.461 LINK
0.0818%
71
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.89
0.0064740 Eth
$585,359.00
586,237.800 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.9038%
72
QMall
LINK-USDC$23.95
0.0064844 Eth
$541,432.00
22,645.331 LINK
0.0735%
73
Bitbegin
LINK-USDT$23.99
0.0064919 Eth
$520,047.00
21,901.856 LINK
0.0711%
74
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$24.19
0.0065515 Eth
$514,364.00
21,414.444 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0695%
75
itBit
LINK-USD$23.91
0.0064836 Eth
$473,479.00
19,802.570 LINK
0.0643%
76
Coinbase Exchange
LINK-ETH$23.95
0.0064826 Eth
$466,260.00
19,470.380 LINK
0.0632%
77
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.94
0.0064866 Eth
$411,199.00
17,323.722 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0563%
78
GMO Japan
LINK-JPY$24.05
0.0065104 Eth
$272,519.00
11,331.900 LINK
0.0368%
79
BitDelta
LINK-USDT$23.97
0.0064846 Eth
$258,117.00
10,850.000 LINK
0.0352%
80
BitMart
LINK-BTC$23.96
0.0064867 Eth
$253,013.00
10,559.400 LINK
0.0343%
81
Coinone
LINK-KRW$23.95
0.0064895 Eth
$237,329.00
9,909.888 LINK
0.0322%
82
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.98
0.0064967 Eth
$221,880.00
9,224.085 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0300%
83
Hotcoin
LINK-BTC$23.97
0.0064935 Eth
$216,763.00
9,042.110 LINK
0.0294%
84
LATOKEN
LINK-BTC$23.93
0.0064828 Eth
$212,043.00
8,860.928 LINK
0.0288%
85
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.94
0.0064838 Eth
$210,516.00
8,795.458 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0286%
86
Bitkub
LINK-THB$23.81
0.0064445 Eth
$203,957.00
8,567.811 LINK
0.0278%
87
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$24.09
0.0065205 Eth
$200,313.00
8,334.469 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0271%
88
Slex
LINK-ETH$23.92
0.0064839 Eth
$190,909.00
7,948.560 LINK
0.0258%
89
Binance US
LINK-USDT$23.99
0.0064941 Eth
$188,673.00
7,865.139 LINK
0.0255%
90
KuCoin
LINK-USDC$24.03
0.0065081 Eth
$181,595.00
7,556.582 LINK
0.0245%
91
BitStorage
LINK-ETH$23.98
0.0064887 Eth
$179,056.00
7,468.320 LINK
0.0243%
92
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.94
0.0064868 Eth
$171,489.00
7,087.198 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0230%
93
Binance
LINK-BRL$24.02
0.0065061 Eth
$165,925.00
6,875.860 LINK
0.0223%
94
PointPay
LINK-BTC$24.02
0.0064980 Eth
$161,760.00
6,631.070 LINK
0.0215%
95
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.89
0.0064740 Eth
$161,098.00
6,729.648 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0219%
96
Bitso
LINK-USD$23.97
0.0064903 Eth
$158,679.00
6,620.822 LINK
0.0215%
97
Mercado Bitcoin
LINK-BRL$24.04
0.0065110 Eth
$137,723.00
5,728.433 LINK
0.0186%
98
Nonkyc.io
LINK-BTC$23.89
0.0064688 Eth
$110,663.00
4,555.731 LINK
0.0148%
99
BitMart
LINK-ETH$23.95
0.0064851 Eth
$90,603.00
3,782.220 LINK
0.0123%
100
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.97
0.0064950 Eth
$66,077.00
2,769.474 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0090%

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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