ETH Price: $3,598.38 (+3.96%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

729,302 (0.00%)

Market

Price

$23.32 @ 0.006481 ETH (+5.95%)

Onchain Market Cap

$23,320,000,000.00

Circulating Supply Market Cap

$14,715,053,011.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
10.03938013 LINK

Value
$234.12 ( ~0.06506254459533 Eth) [0.0000%]
0xd5F575647D196342a921038BCE268F5876F51B94
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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 21100% |ETH 0.0003846 1585.13%

Market

Volume (24H):$1,234,029,817.00
Market Capitalization:$14,715,053,011.00
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$23.26
0.0064571 Eth
$143,503,868.00
6,310,849.490 LINK
21.8635%
2
Coinbase Exchange
LINK-USD$23.29
0.0064627 Eth
$48,167,586.00
2,068,254.810 LINK
7.1653%
3
Upbit
LINK-KRW$23.41
0.0064989 Eth
$35,538,064.00
1,518,046.576 LINK
5.2592%
4
Bitget
LINK-USDT$23.27
0.0064608 Eth
$31,877,291.00
1,394,734.877 LINK
4.8320%
5
P2B
LINK-USDT$23.27
0.0064595 Eth
$30,948,995.00
1,329,901.690 LINK
4.6073%
6
Bybit
LINK-USDT$23.27
0.0064613 Eth
$26,922,142.00
1,178,839.533 LINK
4.0840%
7
CoinW
LINK-USDT$23.34
0.0064728 Eth
$26,632,228.00
1,141,193.070 LINK
3.9536%
8
WhiteBIT
LINK-USDT$23.31
0.0064648 Eth
$25,649,228.00
1,100,559.110 LINK
3.8128%
9
OKX
LINK-USDT$23.28
0.0064630 Eth
$22,227,239.00
973,925.649 LINK
3.3741%
10
Slex
LINK-USDT$23.35
0.0064821 Eth
$22,006,555.00
966,934.680 LINK
3.3499%
11
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.28
0.0064596 Eth
$21,519,675.00
920,974.867 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.1906%
12
DigiFinex
LINK-USDT$23.29
0.0064648 Eth
$18,852,350.00
809,544.870 LINK
2.8046%
13
FameEX
LINK-USDT$23.32
0.0064648 Eth
$14,324,770.00
630,026.284 LINK
2.1827%
14
XT.COM
LINK-USDT$23.29
0.0064649 Eth
$14,322,593.00
629,803.200 LINK
2.1819%
15
Coinstore
LINK-USDT$23.36
0.0064767 Eth
$12,775,281.00
561,892.060 LINK
1.9466%
16
Bitunix
LINK-USDT$23.37
0.0064787 Eth
$11,339,641.00
485,206.820 LINK
1.6810%
17
Binance
LINK-FDUSD$23.26
0.0064585 Eth
$9,553,436.00
417,555.320 LINK
1.4466%
18
BYDFi
LINK-USDT$23.29
0.0064563 Eth
$9,461,392.00
406,221.150 LINK
1.4073%
19
HTX
LINK-USDT$23.29
0.0064644 Eth
$9,403,439.00
412,436.531 LINK
1.4289%
20
Biconomy.com
LINK-USDT$23.30
0.0064621 Eth
$8,203,510.00
359,889.320 LINK
1.2468%
21
Kraken
LINK-USD$23.28
0.0064632 Eth
$8,135,772.00
349,451.925 LINK
1.2107%
22
Bithumb
LINK-KRW$23.40
0.0064951 Eth
$7,769,692.00
332,084.153 LINK
1.1505%
23
LBank
LINK-USDT$23.31
0.0064631 Eth
$7,271,686.00
311,948.930 LINK
1.0807%
24
LATOKEN
LINK-USDT$23.33
0.0064686 Eth
$6,948,317.00
297,821.309 LINK
1.0318%
25
QMall
LINK-USDT$23.33
0.0064768 Eth
$5,895,857.00
259,267.753 LINK
0.8982%
26
Dex-Trade
LINK-USDT$23.39
0.0064770 Eth
$4,734,565.00
202,447.690 LINK
0.7014%
27
Hotcoin
LINK-USDT$23.32
0.0064659 Eth
$3,678,034.00
157,716.810 LINK
0.5464%
28
KuCoin
LINK-USDT$23.27
0.0064601 Eth
$3,576,739.00
153,702.944 LINK
0.5325%
29
FMCPAY
LINK-USDT$23.29
0.0064624 Eth
$3,569,972.00
156,208.708 LINK
0.5412%
30
BTSE
LINK-USDT$23.28
0.0064624 Eth
$3,345,382.00
143,683.949 LINK
0.4978%
31
CoinEx
LINK-USDT$23.27
0.0064529 Eth
$3,215,090.00
139,065.720 LINK
0.4818%
32
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.28
0.0064614 Eth
$2,899,330.00
124,069.950 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4298%
33
PointPay
LINK-USDT$23.32
0.0064668 Eth
$2,225,410.00
97,730.649 LINK
0.3386%
34
Bitvavo
LINK-EUR$23.32
0.0064639 Eth
$2,203,387.00
94,490.443 LINK
0.3274%
35
Dcoin
LINK-USDT$23.30
0.0064597 Eth
$2,157,989.00
92,618.000 LINK
0.3209%
36
EXMO
LINK-USDT$23.25
0.0064529 Eth
$2,041,697.00
87,820.051 LINK
0.3042%
37
ProBit Global
LINK-USDT$23.33
0.0064684 Eth
$1,631,396.00
69,927.600 LINK
0.2423%
38
FMCPAY
LINK-ETH$23.33
0.0064679 Eth
$1,557,859.00
66,659.200 LINK
0.2309%
39
Phemex
LINK-USDT$23.26
0.0064566 Eth
$1,533,474.00
65,922.030 LINK
0.2284%
40
FMCPAY
LINK-BTC$23.26
0.0064572 Eth
$1,501,753.00
65,487.900 LINK
0.2269%
41
Kraken
LINK-EUR$23.34
0.0064805 Eth
$1,487,838.00
63,735.856 LINK
0.2208%
42
Coinbase Exchange
LINK-EUR$23.32
0.0064704 Eth
$1,485,360.00
63,704.090 LINK
0.2207%
43
tanX
LINK-USDC$23.27
0.0064608 Eth
$1,291,042.00
56,809.470 LINK
0.1968%
44
Bybit
LINK-USDC$23.26
0.0064575 Eth
$1,198,196.00
52,116.828 LINK
0.1806%
45
BitStorage
LINK-USDT$23.28
0.0064623 Eth
$1,180,278.00
50,695.650 LINK
0.1756%
46
Kraken
LINK-USDT$23.32
0.0064741 Eth
$1,129,993.00
48,454.174 LINK
0.1679%
47
WhiteBIT
LINK-BTC$23.32
0.0064693 Eth
$1,079,145.00
46,272.010 LINK
0.1603%
48
EarnBIT
LINK-USDT$23.28
0.0064625 Eth
$1,021,211.00
44,692.576 LINK
0.1548%
49
Bitbank
LINK-JPY$23.33
0.0064755 Eth
$981,607.00
42,074.509 LINK
0.1458%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.28
0.0064629 Eth
$958,393.00
41,010.932 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1421%
51
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.30
0.0064675 Eth
$877,263.00
37,513.227 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1300%
52
Gemini
LINK-USD$23.30
0.0064669 Eth
$828,476.00
35,564.388 LINK
0.1232%
53
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.28
0.0064616 Eth
$780,831.00
33,387.097 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1157%
54
Binance
LINK-EUR$23.26
0.0064522 Eth
$765,942.00
33,687.170 LINK
0.1167%
55
Koinpark
LINK-USDT$23.39
0.0064782 Eth
$754,497.00
32,258.930 LINK
0.1118%
56
WhiteBIT
LINK-TRY$23.23
0.0064435 Eth
$751,110.00
32,335.570 LINK
0.1120%
57
Coinbase Exchange
LINK-GBP$23.31
0.0064640 Eth
$742,615.00
31,864.330 LINK
0.1104%
58
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$23.28
0.0064596 Eth
$716,768.00
47,959.096 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1662%
59
itBit
LINK-USD$23.28
0.0064614 Eth
$663,006.00
28,479.620 LINK
0.0987%
60
Binance
LINK-TRY$23.22
0.0064353 Eth
$620,735.00
27,106.570 LINK
0.0939%
61
ProBit Global
LINK-BTC$23.29
0.0064631 Eth
$607,227.00
26,077.446 LINK
0.0903%
62
BigONE
LINK-USDT$23.31
0.0064627 Eth
$568,466.00
24,390.580 LINK
0.0845%
63
Coinbase Exchange
LINK-ETH$23.26
0.0064558 Eth
$503,168.00
21,633.010 LINK
0.0749%
64
GMO Japan
LINK-JPY$23.37
0.0064828 Eth
$497,345.00
21,279.300 LINK
0.0737%
65
Bitbegin
LINK-USDT$23.30
0.0064677 Eth
$479,357.00
21,070.608 LINK
0.0730%
66
Coinbase Exchange
LINK-BTC$23.27
0.0064595 Eth
$452,350.00
19,436.870 LINK
0.0673%
67
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.27
0.0064577 Eth
$446,218.00
19,078.956 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0661%
68
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.28
0.0064614 Eth
$440,610.00
425,878.045 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.4754%
69
HashKey Exchange
LINK-USD$23.34
0.0064794 Eth
$438,065.00
19,524.334 LINK
0.0676%
70
Slex
LINK-ETH$23.34
0.0064781 Eth
$430,597.00
18,461.760 LINK
0.0640%
71
Coinbase Exchange
LINK-USDT$23.28
0.0064619 Eth
$422,726.00
18,155.287 LINK
0.0629%
72
Bitkub
LINK-THB$23.16
0.0064278 Eth
$375,734.00
16,225.387 LINK
0.0562%
73
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.41
0.0064980 Eth
$305,833.00
297,774.341 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.0316%
74
BitMart
LINK-BTC$23.28
0.0064623 Eth
$283,644.00
12,184.740 LINK
0.0422%
75
OKX
LINK-USDC$23.29
0.0064664 Eth
$270,291.00
11,803.965 LINK
0.0409%
76
KuCoin
LINK-USDC$23.28
0.0064628 Eth
$267,009.00
11,469.297 LINK
0.0397%
77
LATOKEN
LINK-BTC$23.33
0.0064661 Eth
$265,192.00
11,366.090 LINK
0.0394%
78
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.26
0.0064550 Eth
$257,694.00
11,295.097 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0391%
79
BTCMarkets
LINK-AUD$23.30
0.0064579 Eth
$248,542.00
10,669.276 LINK
0.0370%
80
Bitci TR
LINK-TRY$23.15
0.0064251 Eth
$230,414.00
10,130.670 LINK
0.0351%
81
Coinone
LINK-KRW$23.41
0.0064989 Eth
$211,799.00
9,047.228 LINK
0.0313%
82
PointPay
LINK-BTC$23.29
0.0064628 Eth
$202,134.00
8,750.999 LINK
0.0303%
83
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.28
0.0064611 Eth
$189,809.00
8,110.430 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0281%
84
BitStorage
LINK-ETH$23.33
0.0064660 Eth
$175,310.00
7,515.110 LINK
0.0260%
85
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$23.29
0.0064628 Eth
$168,719.00
7,226.006 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0250%
86
Binance
LINK-BRL$23.26
0.0064577 Eth
$152,026.00
6,547.040 LINK
0.0227%
87
Binance US
LINK-USDT$23.36
0.0064844 Eth
$145,573.00
6,231.180 LINK
0.0216%
88
Bitso
LINK-USD$23.41
0.0064848 Eth
$134,897.00
5,761.194 LINK
0.0200%
89
Hotcoin
LINK-BTC$23.34
0.0064699 Eth
$132,965.00
5,698.060 LINK
0.0197%
90
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.36
0.0064772 Eth
$132,883.00
5,679.268 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0197%
91
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.34
0.0064737 Eth
$126,119.00
5,522.596 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0191%
92
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.28
0.0064596 Eth
$97,244.00
4,350.329 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0151%
93
Kanga
LINK-PLN$23.45
0.0065093 Eth
$96,761.00
0.000 LINK
0.0000%
94
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.27
0.0064583 Eth
$94,394.00
4,138.628 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0143%
95
BitMart
LINK-ETH$23.33
0.0064755 Eth
$88,188.00
3,779.960 LINK
0.0131%
96
Mercado Bitcoin
LINK-BRL$23.25
0.0064521 Eth
$83,404.00
3,587.931 LINK
0.0124%
97
Kraken
LINK-GBP$23.32
0.0064733 Eth
$72,057.00
3,090.188 LINK
0.0107%
98
Independent Reserve
LINK-AUD$23.38
0.0064883 Eth
$59,471.00
2,544.010 LINK
0.0088%
99
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.35
0.0064806 Eth
$54,683.00
2,341.742 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0081%
100
Coins.ph
LINK-PHP$23.36
0.0064778 Eth
$53,555.00
2,339.611 LINK
0.0081%

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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