ETH Price: $3,071.31 (-7.81%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

730,925 ( 0.001%)

Market

Price

$22.54 @ 0.007339 ETH (-12.34%)

Onchain Market Cap

$22,540,000,000.00

Circulating Supply Market Cap

$14,575,370,862.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0.74 LINK

Value
$16.68 ( ~0.00543091243948599 Eth) [0.0000%]
0xc5714310d8834241df857bfa1ebb56dca8034c7b
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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 20390.91% |ETH 0.0003846 1808.22%

Market

Volume (24H):$1,142,050,635.00
Market Capitalization:$14,575,370,862.00
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
Coinbase Exchange
LINK-USD$22.49
0.0073140 Eth
$70,630,554.00
3,141,090.180 LINK
13.0891%
2
Bybit
LINK-USDT$22.54
0.0073322 Eth
$57,961,254.00
2,368,490.155 LINK
9.8696%
3
P2B
LINK-USDT$22.60
0.0073502 Eth
$26,411,450.00
1,168,777.100 LINK
4.8704%
4
OKX
LINK-USDT$22.49
0.0073142 Eth
$25,965,901.00
1,066,360.297 LINK
4.4436%
5
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$22.48
0.0073125 Eth
$24,491,694.00
1,053,172.002 0X514910771AF9CA656AF840DFF83E8264ECF986CA
4.3886%
6
Gate.io
LINK-USDT$22.47
0.0073077 Eth
$21,323,099.00
878,304.800 LINK
3.6599%
7
DigiFinex
LINK-USDT$22.50
0.0073186 Eth
$19,576,969.00
870,073.080 LINK
3.6256%
8
Azbit
LINK-USDT$22.53
0.0073294 Eth
$16,474,177.00
675,165.201 LINK
2.8134%
9
XT.COM
LINK-USDT$22.70
0.0073838 Eth
$16,371,721.00
670,440.760 LINK
2.7938%
10
MEXC
LINK-USDT$22.46
0.0073066 Eth
$15,857,581.00
705,932.220 LINK
2.9417%
11
KuCoin
LINK-USDT$22.46
0.0073040 Eth
$15,096,597.00
672,298.210 LINK
2.8015%
12
HTX
LINK-USDT$22.60
0.0073522 Eth
$14,413,493.00
580,701.146 LINK
2.4198%
13
Coinstore
LINK-USDT$22.58
0.0073437 Eth
$13,817,508.00
563,349.120 LINK
2.3475%
14
Binance
LINK-FDUSD$22.53
0.0073269 Eth
$13,270,489.00
539,416.100 LINK
2.2478%
15
Bitunix
LINK-USDT$22.66
0.0073692 Eth
$12,605,384.00
556,757.080 LINK
2.3200%
16
Kraken
LINK-USD$22.51
0.0073221 Eth
$11,719,857.00
520,626.865 LINK
2.1695%
17
Binance
LINK-USDC$22.64
0.0073632 Eth
$11,528,026.00
470,955.870 LINK
1.9625%
18
WhiteBIT
LINK-USDT$22.45
0.0073007 Eth
$10,842,799.00
483,076.730 LINK
2.0130%
19
CoinW
LINK-USDT$22.46
0.0073066 Eth
$9,288,992.00
413,520.400 LINK
1.7232%
20
BYDFi
LINK-USDT$22.71
0.0073871 Eth
$8,625,686.00
379,805.140 LINK
1.5827%
21
LATOKEN
LINK-USDT$22.53
0.0073268 Eth
$8,015,255.00
355,832.059 LINK
1.4828%
22
LBank
LINK-USDT$22.50
0.0073196 Eth
$7,461,659.00
331,579.500 LINK
1.3817%
23
BTSE
LINK-USDT$22.69
0.0073789 Eth
$7,149,823.00
315,168.527 LINK
1.3133%
24
QMall
LINK-USDT$22.65
0.0073672 Eth
$6,767,115.00
277,368.523 LINK
1.1558%
25
Coinbase Exchange
LINK-EUR$22.65
0.0073662 Eth
$6,638,781.00
293,146.950 LINK
1.2216%
26
Hotcoin
LINK-USDT$22.53
0.0073299 Eth
$6,550,439.00
290,680.630 LINK
1.2113%
27
FMCPAY
LINK-USDT$22.60
0.0073502 Eth
$5,148,322.00
208,222.328 LINK
0.8677%
28
Bitvavo
LINK-EUR$22.55
0.0073359 Eth
$4,943,293.00
219,181.172 LINK
0.9133%
29
Dex-Trade
LINK-USDT$22.91
0.0074619 Eth
$4,450,580.00
194,300.886 LINK
0.8097%
30
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$22.62
0.0073569 Eth
$4,383,347.00
188,584.897 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.7858%
31
CoinEx
LINK-USDT$22.66
0.0073722 Eth
$3,933,668.00
159,320.148 LINK
0.6639%
32
Bitstamp
LINK-USD$22.59
0.0073478 Eth
$3,801,556.00
168,284.906 LINK
0.7013%
33
Biconomy.com
LINK-USDT$22.55
0.0073362 Eth
$3,272,935.00
133,013.420 LINK
0.5543%
34
Coinbase Exchange
LINK-GBP$22.53
0.0073268 Eth
$2,725,353.00
120,989.880 LINK
0.5042%
35
PointPay
LINK-USDT$22.59
0.0073489 Eth
$2,669,075.00
109,240.971 LINK
0.4552%
36
WhiteBIT
LINK-BTC$22.51
0.0073230 Eth
$2,369,650.00
105,253.930 LINK
0.4386%
37
Binance
LINK-ETH$22.62
0.0073563 Eth
$2,157,821.00
92,114.540 LINK
0.3838%
38
WhiteBIT
LINK-TRY$22.45
0.0073025 Eth
$2,075,502.00
92,446.960 LINK
0.3852%
39
Kraken
LINK-USDT$22.60
0.0073495 Eth
$1,908,089.00
84,447.072 LINK
0.3519%
40
FMCPAY
LINK-BTC$22.50
0.0073191 Eth
$1,789,679.00
75,020.500 LINK
0.3126%
41
FMCPAY
LINK-ETH$22.61
0.0073536 Eth
$1,759,017.00
75,175.200 LINK
0.3133%
42
OKX
LINK-USDC$22.50
0.0073182 Eth
$1,522,403.00
61,222.640 LINK
0.2551%
43
Bitbank
LINK-JPY$22.60
0.0073506 Eth
$1,515,145.00
67,045.878 LINK
0.2794%
44
Phemex
LINK-USDT$22.64
0.0073643 Eth
$1,488,824.00
65,758.680 LINK
0.2740%
45
tanX
LINK-USDC$22.62
0.0073562 Eth
$1,428,050.00
57,214.140 LINK
0.2384%
46
WhiteBIT
LINK-EUR$22.61
0.0073529 Eth
$1,323,395.00
58,542.340 LINK
0.2439%
47
Kraken
LINK-EUR$22.46
0.0073049 Eth
$1,317,371.00
58,658.673 LINK
0.2444%
48
BigONE
LINK-USDT$22.65
0.0073684 Eth
$1,260,295.00
55,633.810 LINK
0.2318%
49
EarnBIT
LINK-USDT$22.56
0.0073375 Eth
$1,226,053.00
50,450.632 LINK
0.2102%
50
BitStorage
LINK-USDT$22.50
0.0073196 Eth
$1,161,746.00
51,625.410 LINK
0.2151%
51
Binance
LINK-TRY$22.63
0.0073619 Eth
$1,156,326.00
46,360.090 LINK
0.1932%
52
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$22.60
0.0073525 Eth
$1,100,647.00
46,979.107 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1958%
53
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$22.69
0.0073811 Eth
$1,096,571.00
44,686.392 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1862%
54
Binance
LINK-EUR$22.52
0.0073254 Eth
$1,039,802.00
42,629.640 LINK
0.1776%
55
Bybit
LINK-USDC$22.52
0.0073258 Eth
$1,023,220.00
41,687.810 LINK
0.1737%
56
Gemini
LINK-USD$22.50
0.0073186 Eth
$1,016,402.00
45,172.658 LINK
0.1882%
57
Trubit
LINK-USDT$22.46
0.0073046 Eth
$934,058.00
37,675.210 LINK
0.1570%
58
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$22.48
0.0073129 Eth
$932,298.00
40,000.785 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1667%
59
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$22.48
0.0073106 Eth
$921,593.00
38,979.212 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1624%
60
QMall
LINK-USDC$22.66
0.0073706 Eth
$895,910.00
36,665.437 LINK
0.1528%
61
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$22.54
0.0073330 Eth
$856,729.00
37,467.788 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1561%
62
HashKey Exchange
LINK-USD$22.53
0.0073276 Eth
$798,712.00
32,444.695 LINK
0.1352%
63
EXMO
LINK-USDT$22.49
0.0073149 Eth
$745,598.00
33,154.224 LINK
0.1382%
64
Coinbase Exchange
LINK-USDT$22.59
0.0073470 Eth
$730,027.00
32,319.972 LINK
0.1347%
65
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$22.61
0.0073540 Eth
$688,781.00
29,402.936 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1225%
66
XT.COM
LINK-ETH$22.62
0.0073563 Eth
$603,618.00
25,776.300 LINK
0.1074%
67
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$22.60
0.0073525 Eth
$601,265.00
657,025.044 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.7379%
68
LATOKEN
LINK-BTC$22.49
0.0073162 Eth
$574,331.00
25,533.948 LINK
0.1064%
69
itBit
LINK-USD$22.46
0.0073055 Eth
$499,413.00
22,235.648 LINK
0.0927%
70
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$22.57
0.0073400 Eth
$487,471.00
20,874.814 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0870%
71
BitStorage
LINK-ETH$22.54
0.0073307 Eth
$464,868.00
20,626.470 LINK
0.0860%
72
Coinbase Exchange
LINK-ETH$22.52
0.0073254 Eth
$413,245.00
18,349.320 LINK
0.0765%
73
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$22.60
0.0073525 Eth
$377,096.00
15,260.314 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0636%
74
Binance
LINK-BNB$22.61
0.0073544 Eth
$367,990.00
15,220.859 LINK
0.0634%
75
Slex
LINK-ETH$22.53
0.0073287 Eth
$367,263.00
15,679.600 LINK
0.0653%
76
BitDelta
LINK-USDT$22.51
0.0073229 Eth
$334,008.00
13,540.000 LINK
0.0564%
77
bitcastle
LINK-USDT$22.58
0.0073437 Eth
$313,972.00
12,837.480 LINK
0.0535%
78
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$22.55
0.0073348 Eth
$312,621.00
12,600.276 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0525%
79
KuCoin
LINK-USDC$22.46
0.0073052 Eth
$293,657.00
13,075.218 LINK
0.0545%
80
Coinbase Exchange
LINK-BTC$22.56
0.0073365 Eth
$286,905.00
12,720.100 LINK
0.0530%
81
BitMart
LINK-BTC$22.64
0.0073629 Eth
$271,585.00
11,997.700 LINK
0.0500%
82
Kraken
LINK-GBP$22.55
0.0073349 Eth
$262,989.00
11,662.314 LINK
0.0486%
83
Hotcoin
LINK-BTC$22.58
0.0073452 Eth
$259,098.00
11,473.660 LINK
0.0478%
84
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$22.48
0.0073125 Eth
$250,992.00
10,239.835 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0427%
85
Bitkub
LINK-THB$22.84
0.0074282 Eth
$229,518.00
10,050.231 LINK
0.0419%
86
PointPay
LINK-BTC$22.55
0.0073355 Eth
$213,368.00
8,978.484 LINK
0.0374%
87
BYDFi
LINK-USDC$22.58
0.0073438 Eth
$207,871.00
9,206.890 LINK
0.0384%
88
Mercado Bitcoin
LINK-BRL$22.61
0.0073528 Eth
$196,719.00
8,702.320 LINK
0.0363%
89
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$22.78
0.0074094 Eth
$187,555.00
8,038.405 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0335%
90
Bitso
LINK-USD$22.91
0.0074360 Eth
$187,513.00
8,183.162 LINK
0.0341%
91
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$22.58
0.0073435 Eth
$163,671.00
6,971.168 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0290%
92
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$22.46
0.0073052 Eth
$163,080.00
178,223.302 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.7427%
93
Binance US
LINK-USDT$22.60
0.0073522 Eth
$161,003.00
7,122.908 LINK
0.0297%
94
KuCoin
LINK-BTC$22.52
0.0073239 Eth
$153,214.00
6,804.466 LINK
0.0284%
95
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$22.68
0.0073765 Eth
$139,838.00
5,911.565 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0246%
96
BitMart
LINK-ETH$22.60
0.0073498 Eth
$95,651.00
4,233.080 LINK
0.0176%
97
Foxbit
LINK-BRL$22.62
0.0073575 Eth
$86,923.00
3,601.803 LINK
0.0150%
98
Dex-Trade
LINK-ETH$22.59
0.0073466 Eth
$62,977.00
2,788.270 LINK
0.0116%
99
Independent Reserve
LINK-AUD$22.62
0.0073572 Eth
$42,963.00
1,899.440 LINK
0.0079%
100
OKX
LINK-EUR$22.52
0.0073264 Eth
$21,260.00
895.788 LINK
0.0037%

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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