ETH Price: $2,874.26 (+6.82%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

722,697 ( 0.005%)

Market

Price

$12.52 @ 0.004356 ETH (+5.38%)

Onchain Market Cap

$12,520,000,000.00

Circulating Supply Market Cap

$7,846,001,070.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0.001917662049042446 LINK

Value
$0.02 ( ~6.95830362173497E-06 Eth) [0.0000%]
0x5f95465ccb42c2c35522beb48923ac17d0605355
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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 11281.82% |ETH 0.0003846 1032.61%

Market

Volume (24H):$672,833,464.00
Market Capitalization:$7,846,001,070.00
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$12.53
0.0043650 Eth
$52,994,049.00
4,296,643.420 LINK
15.6360%
2
WhiteBIT
LINK-USDT$12.57
0.0043786 Eth
$48,400,275.00
3,850,144.410 LINK
14.0111%
3
Coinbase Exchange
LINK-USD$12.52
0.0043494 Eth
$24,764,228.00
1,977,973.490 LINK
7.1981%
4
HTX
LINK-USDT$12.50
0.0043574 Eth
$15,806,244.00
1,287,357.408 LINK
4.6848%
5
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$12.56
0.0043735 Eth
$13,577,687.00
1,071,805.949 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.9004%
6
Bybit
LINK-USDT$12.50
0.0043577 Eth
$11,740,488.00
951,806.920 LINK
3.4637%
7
Gate.io
LINK-USDT$12.52
0.0043600 Eth
$10,884,115.00
876,804.910 LINK
3.1908%
8
P2B
LINK-USDT$12.51
0.0043611 Eth
$10,737,280.00
858,450.110 LINK
3.1240%
9
Bitget
LINK-USDT$12.57
0.0043775 Eth
$10,431,600.00
846,702.436 LINK
3.0812%
10
BTSE
LINK-USDT$12.51
0.0043479 Eth
$9,335,270.00
746,165.513 LINK
2.7154%
11
Hotcoin
LINK-USDT$12.51
0.0043473 Eth
$7,612,895.00
608,492.840 LINK
2.2144%
12
OKX
LINK-USDT$12.49
0.0043541 Eth
$7,442,759.00
603,353.320 LINK
2.1957%
13
Slex
LINK-USDT$12.51
0.0043559 Eth
$7,266,991.00
589,781.280 LINK
2.1463%
14
MEXC
LINK-USDT$12.57
0.0043772 Eth
$7,123,571.00
566,602.590 LINK
2.0619%
15
DigiFinex
LINK-USDT$12.51
0.0043585 Eth
$6,698,152.00
535,572.990 LINK
1.9490%
16
Bitunix
LINK-USDT$12.51
0.0043476 Eth
$6,624,914.00
529,151.270 LINK
1.9256%
17
Ourbit
LINK-USDT$12.53
0.0043534 Eth
$5,603,716.00
454,082.930 LINK
1.6525%
18
Upbit
LINK-KRW$12.39
0.0043179 Eth
$5,386,682.00
434,757.059 LINK
1.5821%
19
XT.COM
LINK-USDT$12.54
0.0043583 Eth
$5,304,705.00
429,459.200 LINK
1.5628%
20
CoinW
LINK-USDT$12.51
0.0043461 Eth
$4,826,033.00
385,807.770 LINK
1.4040%
21
Azbit
LINK-USDT$12.52
0.0043476 Eth
$4,290,420.00
348,842.060 LINK
1.2695%
22
Biconomy.com
LINK-USDT$12.57
0.0043766 Eth
$4,246,838.00
344,429.800 LINK
1.2534%
23
Coinstore
LINK-USDT$12.57
0.0043766 Eth
$3,579,717.00
290,113.730 LINK
1.0558%
24
KuCoin
LINK-USDT$12.51
0.0043581 Eth
$3,575,737.00
285,939.689 LINK
1.0406%
25
Kraken
LINK-USD$12.49
0.0043545 Eth
$3,178,260.00
254,487.774 LINK
0.9261%
26
Binance
LINK-FDUSD$12.56
0.0043651 Eth
$2,903,415.00
235,252.040 LINK
0.8561%
27
BYDFi
LINK-USDT$12.53
0.0043569 Eth
$2,612,539.00
208,534.410 LINK
0.7589%
28
LBank
LINK-USDT$12.51
0.0043581 Eth
$2,421,808.00
193,663.820 LINK
0.7048%
29
Tokpie
LINK-USDT$12.52
0.0043578 Eth
$2,414,243.00
192,843.620 LINK
0.7018%
30
WhiteBIT
LINK-BTC$12.51
0.0043531 Eth
$2,195,079.00
175,472.530 LINK
0.6386%
31
ProBit Global
LINK-USDT$12.56
0.0043639 Eth
$2,047,038.00
162,986.337 LINK
0.5931%
32
Bitvavo
LINK-EUR$12.52
0.0043503 Eth
$1,914,075.00
152,852.007 LINK
0.5562%
33
Dex-Trade
LINK-USDT$12.54
0.0043579 Eth
$1,734,319.00
138,253.152 LINK
0.5031%
34
Bithumb
LINK-KRW$12.41
0.0043212 Eth
$1,608,995.00
129,634.619 LINK
0.4718%
35
LATOKEN
LINK-USDT$12.56
0.0043721 Eth
$1,492,906.00
118,881.053 LINK
0.4326%
36
Trubit
LINK-USDT$12.52
0.0043564 Eth
$1,383,577.00
112,343.430 LINK
0.4088%
37
CoinEx
LINK-USDT$12.56
0.0043764 Eth
$1,352,378.00
109,868.511 LINK
0.3998%
38
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$12.55
0.0043673 Eth
$1,146,504.00
90,562.072 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3296%
39
BigONE
LINK-USDT$12.48
0.0043356 Eth
$930,618.00
74,560.580 LINK
0.2713%
40
Kraken
LINK-EUR$12.55
0.0043766 Eth
$892,136.00
71,073.755 LINK
0.2586%
41
Azbit
LINK-ETH$12.51
0.0043555 Eth
$883,446.00
70,002.964 LINK
0.2547%
42
EXMO
LINK-USDT$12.54
0.0043575 Eth
$828,923.00
66,093.157 LINK
0.2405%
43
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$12.49
0.0043531 Eth
$774,011.00
60,874.212 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2215%
44
itBit
LINK-USD$12.38
0.0043457 Eth
$703,346.00
56,813.073 LINK
0.2067%
45
LATOKEN
LINK-BTC$12.52
0.0043636 Eth
$658,224.00
52,578.334 LINK
0.1913%
46
tanX
LINK-USDC$12.55
0.0043730 Eth
$656,407.00
53,352.450 LINK
0.1942%
47
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$12.54
0.0043666 Eth
$642,457.00
51,364.879 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1869%
48
PointPay
LINK-USDT$12.53
0.0043559 Eth
$638,405.00
51,636.454 LINK
0.1879%
49
WhiteBIT
LINK-TRY$12.52
0.0043571 Eth
$634,212.00
50,643.340 LINK
0.1843%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$12.53
0.0043611 Eth
$601,645.00
47,134.052 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1715%
51
Kraken
LINK-USDT$12.54
0.0043672 Eth
$588,732.00
46,934.270 LINK
0.1708%
52
Phemex
LINK-USDT$12.50
0.0043546 Eth
$574,520.00
45,979.240 LINK
0.1673%
53
Coinbase Exchange
LINK-EUR$12.56
0.0043765 Eth
$536,107.00
42,690.340 LINK
0.1554%
54
ProBit Global
LINK-BTC$12.53
0.0043555 Eth
$477,701.00
38,116.095 LINK
0.1387%
55
WhiteBIT
LINK-EUR$12.54
0.0043555 Eth
$457,918.00
36,523.800 LINK
0.1329%
56
Bybit
LINK-USDC$12.51
0.0043630 Eth
$457,068.00
37,046.561 LINK
0.1348%
57
Bitbank
LINK-JPY$12.52
0.0043653 Eth
$417,164.00
33,320.403 LINK
0.1213%
58
Kraken
LINK-XBT$12.47
0.0043489 Eth
$371,542.00
29,787.678 LINK
0.1084%
59
KickEX
LINK-USDT$12.50
0.0043533 Eth
$370,458.00
29,630.010 LINK
0.1078%
60
EarnBIT
LINK-USDT$12.48
0.0043436 Eth
$340,512.00
27,608.169 LINK
0.1005%
61
GMO Japan
LINK-JPY$12.49
0.0043395 Eth
$294,566.00
23,581.200 LINK
0.0858%
62
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$12.57
0.0043772 Eth
$288,781.00
23,196.684 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0844%
63
BYDFi
LINK-USDC$12.50
0.0043556 Eth
$275,637.00
22,042.330 LINK
0.0802%
64
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$12.54
0.0043666 Eth
$264,463.00
21,434.495 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0780%
65
Binance
LINK-EUR$12.54
0.0043689 Eth
$264,245.00
21,442.520 LINK
0.0780%
66
Gemini
LINK-USD$12.54
0.0043721 Eth
$263,187.00
20,989.037 LINK
0.0764%
67
OKX
LINK-USDC$12.50
0.0043596 Eth
$242,326.00
19,764.102 LINK
0.0719%
68
Coinbase Exchange
LINK-GBP$12.52
0.0043640 Eth
$234,583.00
18,733.440 LINK
0.0682%
69
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$12.58
0.0043784 Eth
$225,334.00
220,803.965 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.8035%
70
Slex
LINK-ETH$12.52
0.0043655 Eth
$218,799.00
17,315.630 LINK
0.0630%
71
BitMart
LINK-BTC$12.53
0.0043632 Eth
$217,742.00
17,372.760 LINK
0.0632%
72
Slex
LINK-BTC$12.52
0.0043643 Eth
$191,624.00
15,460.100 LINK
0.0563%
73
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$12.47
0.0043394 Eth
$189,533.00
14,964.160 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0545%
74
BitDelta
LINK-USDT$12.52
0.0043561 Eth
$177,612.00
14,432.000 LINK
0.0525%
75
Binance
LINK-TRY$12.59
0.0043863 Eth
$177,594.00
14,383.520 LINK
0.0523%
76
Coinbase Exchange
LINK-USDT$12.55
0.0043702 Eth
$163,737.00
13,044.256 LINK
0.0475%
77
OKX
LINK-EUR$12.55
0.0043743 Eth
$141,495.00
11,492.081 LINK
0.0418%
78
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$12.56
0.0043674 Eth
$128,713.00
125,902.304 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.4582%
79
PointPay
LINK-BTC$12.52
0.0043581 Eth
$125,994.00
10,117.172 LINK
0.0368%
80
Bitci TR
LINK-TRY$12.43
0.0043225 Eth
$125,077.00
10,167.497 LINK
0.0370%
81
Kraken
LINK-AUD$12.50
0.0043526 Eth
$116,378.00
9,308.724 LINK
0.0339%
82
Bitkub
LINK-THB$12.53
0.0043627 Eth
$105,870.00
8,447.962 LINK
0.0307%
83
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$12.55
0.0043673 Eth
$101,481.00
8,256.213 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0300%
84
Binance
LINK-BRL$12.49
0.0043539 Eth
$101,010.00
8,177.810 LINK
0.0298%
85
Coinbase Exchange
LINK-ETH$12.51
0.0043598 Eth
$94,268.00
7,535.320 LINK
0.0274%
86
Bitso
LINK-USD$12.50
0.0043562 Eth
$87,511.00
7,003.421 LINK
0.0255%
87
Coinbase Exchange
LINK-BTC$12.49
0.0043410 Eth
$83,409.00
6,675.980 LINK
0.0243%
88
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$12.52
0.0043589 Eth
$80,223.00
6,387.036 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0232%
89
CoinEx
LINK-BTC$12.46
0.0043393 Eth
$75,106.00
5,952.172 LINK
0.0217%
90
Mercado Bitcoin
LINK-BRL$12.56
0.0043715 Eth
$67,867.00
5,404.114 LINK
0.0197%
91
KuCoin
LINK-USDC$12.53
0.0043678 Eth
$62,553.00
4,991.003 LINK
0.0182%
92
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$12.51
0.0043629 Eth
$61,225.00
4,812.966 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0175%
93
BitStorage
LINK-ETH$12.53
0.0043536 Eth
$55,670.00
4,442.140 LINK
0.0162%
94
Nonkyc.io
LINK-BTC$12.48
0.0043348 Eth
$53,908.00
4,335.281 LINK
0.0158%
95
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$12.55
0.0043673 Eth
$53,347.00
52,542.124 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.1912%
96
Bitcointry
LINK-USDT$12.52
0.0043529 Eth
$52,861.00
4,288.909 LINK
0.0156%
97
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$12.54
0.0043583 Eth
$50,234.00
3,957.199 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0144%
98
Uniswap V3 (Ethereum)
0XA95C5EBB86E0DE73B4FB8C47A45B792CFEA28C23-0X514910771AF9CA656AF840DFF83E8264ECF986CA$12.57
0.0043765 Eth
$45,024.00
144,128.977 0XA95C5EBB86E0DE73B4FB8C47A45B792CFEA28C23
0.5245%
99
Binance US
LINK-USDT$12.52
0.0043627 Eth
$42,174.00
3,368.969 LINK
0.0123%
100
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$12.56
0.0043714 Eth
$36,961.00
2,952.983 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
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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