ETH Price: $3,121.27 (-5.86%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

731,198 ( 0.034%)

Market

Price

$23.69 @ 0.007590 ETH (-6.81%)

Onchain Market Cap

$23,690,000,000.00

Circulating Supply Market Cap

$15,167,579,409.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
Binance Dep: 0x04dDb6B2e41312866776B1BE4da516D8f6De0D39
Balance
4.122889557 LINK

Value
$97.67 ( ~0.0312917316203989 Eth) [0.0000%]
0x04dDb6B2e41312866776B1BE4da516D8f6De0D39
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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 21436.36% |ETH 0.0003846 1873.48%

Market

Volume (24H):$1,550,926,631.00
Market Capitalization:$15,167,579,409.00
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
Binance
LINK-USDT$23.71
0.0075581 Eth
$227,647,501.00
9,558,673.160 LINK
22.7422%
2
Coinbase Exchange
LINK-USD$23.73
0.0075827 Eth
$99,328,866.00
4,186,498.630 LINK
9.9606%
3
Bybit
LINK-USDT$23.68
0.0075760 Eth
$71,813,585.00
3,002,496.773 LINK
7.1436%
4
P2B
LINK-USDT$23.80
0.0075730 Eth
$38,594,390.00
1,621,306.820 LINK
3.8574%
5
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.87
0.0076280 Eth
$35,125,742.00
1,477,661.104 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.5157%
6
Gate.io
LINK-USDT$23.71
0.0075846 Eth
$32,022,134.00
1,346,063.360 LINK
3.2026%
7
OKX
LINK-USDT$23.68
0.0075767 Eth
$29,958,564.00
1,256,527.774 LINK
2.9896%
8
DigiFinex
LINK-USDT$23.65
0.0075676 Eth
$28,082,555.00
1,187,264.760 LINK
2.8248%
9
Slex
LINK-USDT$23.74
0.0075875 Eth
$23,675,389.00
977,526.880 LINK
2.3258%
10
Azbit
LINK-USDT$23.74
0.0075939 Eth
$22,649,130.00
951,478.459 LINK
2.2638%
11
XT.COM
LINK-USDT$23.67
0.0075614 Eth
$22,563,596.00
946,147.870 LINK
2.2511%
12
KuCoin
LINK-USDT$23.64
0.0075647 Eth
$20,135,523.00
851,602.926 LINK
2.0262%
13
Coinstore
LINK-USDT$23.64
0.0075645 Eth
$18,360,407.00
769,931.500 LINK
1.8318%
14
Binance
LINK-FDUSD$23.61
0.0075423 Eth
$18,252,344.00
762,846.140 LINK
1.8150%
15
Bitunix
LINK-USDT$23.69
0.0075730 Eth
$17,883,792.00
754,627.240 LINK
1.7954%
16
HTX
LINK-USDT$23.75
0.0075909 Eth
$16,560,651.00
691,377.894 LINK
1.6449%
17
Kraken
LINK-USD$23.75
0.0075972 Eth
$16,114,058.00
678,608.074 LINK
1.6146%
18
Binance
LINK-USDC$23.65
0.0075677 Eth
$15,927,022.00
668,431.520 LINK
1.5903%
19
CoinW
LINK-USDT$23.71
0.0075846 Eth
$14,505,461.00
611,835.130 LINK
1.4557%
20
WhiteBIT
LINK-USDT$23.78
0.0076077 Eth
$13,045,582.00
548,628.770 LINK
1.3053%
21
BYDFi
LINK-USDT$23.68
0.0075748 Eth
$12,563,635.00
530,656.840 LINK
1.2625%
22
LATOKEN
LINK-USDT$23.72
0.0075556 Eth
$11,186,608.00
471,573.695 LINK
1.1220%
23
LBank
LINK-USDT$23.66
0.0075617 Eth
$11,074,950.00
468,167.320 LINK
1.1139%
24
Hotcoin
LINK-USDT$23.69
0.0075678 Eth
$10,299,052.00
434,710.370 LINK
1.0343%
25
Bitget
LINK-USDT$23.68
0.0075748 Eth
$9,823,699.00
412,870.789 LINK
0.9823%
26
QMall
LINK-USDT$23.82
0.0075775 Eth
$9,393,134.00
394,277.954 LINK
0.9381%
27
BTSE
LINK-USDT$23.93
0.0076146 Eth
$9,039,104.00
377,727.304 LINK
0.8987%
28
Coinbase Exchange
LINK-EUR$23.76
0.0075844 Eth
$8,414,728.00
354,160.030 LINK
0.8426%
29
Bitvavo
LINK-EUR$23.71
0.0075771 Eth
$7,320,497.00
308,774.465 LINK
0.7346%
30
Dex-Trade
LINK-USDT$23.73
0.0075826 Eth
$6,924,037.00
291,835.941 LINK
0.6943%
31
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.59
0.0075391 Eth
$5,771,267.00
243,997.519 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5805%
32
FMCPAY
LINK-USDT$23.69
0.0075780 Eth
$5,660,740.00
234,085.112 LINK
0.5569%
33
CoinEx
LINK-USDT$23.66
0.0075625 Eth
$4,832,587.00
200,353.814 LINK
0.4767%
34
Bitstamp
LINK-USD$23.74
0.0075954 Eth
$3,809,924.00
160,485.411 LINK
0.3818%
35
Coinbase Exchange
LINK-GBP$23.75
0.0075811 Eth
$3,663,697.00
154,263.950 LINK
0.3670%
36
PointPay
LINK-USDT$23.67
0.0075616 Eth
$3,533,217.00
148,074.754 LINK
0.3523%
37
Biconomy.com
LINK-USDT$23.69
0.0075721 Eth
$3,499,404.00
145,773.800 LINK
0.3468%
38
WhiteBIT
LINK-BTC$23.79
0.0076005 Eth
$2,924,923.00
122,932.330 LINK
0.2925%
39
Binance
LINK-ETH$23.68
0.0075608 Eth
$2,729,631.00
114,757.780 LINK
0.2730%
40
WhiteBIT
LINK-TRY$23.69
0.0075783 Eth
$2,729,332.00
115,226.620 LINK
0.2741%
41
Bitbank
LINK-JPY$23.82
0.0076151 Eth
$2,616,960.00
109,847.062 LINK
0.2614%
42
Kraken
LINK-USDT$23.74
0.0075941 Eth
$2,592,333.00
109,214.701 LINK
0.2598%
43
Kraken
LINK-EUR$23.69
0.0075797 Eth
$2,504,705.00
105,722.878 LINK
0.2515%
44
Phemex
LINK-USDT$23.76
0.0075859 Eth
$2,249,436.00
94,654.550 LINK
0.2252%
45
BigONE
LINK-USDT$23.71
0.0075782 Eth
$1,995,563.00
84,165.290 LINK
0.2002%
46
FMCPAY
LINK-BTC$23.65
0.0075613 Eth
$1,927,375.00
80,242.650 LINK
0.1909%
47
FMCPAY
LINK-ETH$23.89
0.0076025 Eth
$1,892,832.00
79,293.120 LINK
0.1887%
48
BitStorage
LINK-USDT$23.67
0.0075652 Eth
$1,745,445.00
73,748.620 LINK
0.1755%
49
WhiteBIT
LINK-EUR$23.74
0.0075607 Eth
$1,645,279.00
69,290.290 LINK
0.1649%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.66
0.0075566 Eth
$1,515,286.00
64,225.029 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1528%
51
OKX
LINK-USDC$23.69
0.0075797 Eth
$1,479,791.00
60,752.187 LINK
0.1445%
52
Binance
LINK-TRY$23.82
0.0075839 Eth
$1,464,663.00
60,415.560 LINK
0.1437%
53
EarnBIT
LINK-USDT$23.63
0.0075537 Eth
$1,421,512.00
59,754.279 LINK
0.1422%
54
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$23.60
0.0075417 Eth
$1,419,345.00
59,237.506 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1409%
55
EXMO
LINK-USDT$23.76
0.0075900 Eth
$1,407,343.00
59,220.528 LINK
0.1409%
56
GMO Japan
LINK-JPY$23.64
0.0075550 Eth
$1,376,041.00
58,219.200 LINK
0.1385%
57
Binance
LINK-EUR$23.76
0.0075630 Eth
$1,343,733.00
55,928.350 LINK
0.1331%
58
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$23.67
0.0075592 Eth
$1,293,014.00
53,482.144 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1272%
59
Bybit
LINK-USDC$23.70
0.0075825 Eth
$1,267,567.00
53,173.755 LINK
0.1265%
60
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$23.65
0.0075539 Eth
$1,258,337.00
53,495.291 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1273%
61
tanX
LINK-USDC$23.72
0.0075709 Eth
$1,255,470.00
51,706.160 LINK
0.1230%
62
QMall
LINK-USDC$23.76
0.0075855 Eth
$1,237,849.00
51,824.126 LINK
0.1233%
63
Gemini
LINK-USD$23.74
0.0075947 Eth
$1,232,984.00
51,941.520 LINK
0.1236%
64
Nonkyc.io
LINK-USDT$23.63
0.0075276 Eth
$1,186,954.00
50,462.064 LINK
0.1201%
65
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$23.85
0.0076240 Eth
$1,050,209.00
44,317.207 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1054%
66
Trubit
LINK-USDT$23.69
0.0075718 Eth
$974,446.00
40,566.790 LINK
0.0965%
67
itBit
LINK-USD$23.67
0.0075661 Eth
$963,267.00
40,695.675 LINK
0.0968%
68
HashKey Exchange
LINK-USD$23.74
0.0075871 Eth
$946,294.00
39,327.039 LINK
0.0936%
69
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$23.66
0.0075566 Eth
$886,480.00
902,951.982 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.1483%
70
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.65
0.0075577 Eth
$880,318.00
36,833.953 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0876%
71
Coinbase Exchange
LINK-USDT$23.69
0.0075689 Eth
$852,762.00
35,990.550 LINK
0.0856%
72
XT.COM
LINK-ETH$23.74
0.0075941 Eth
$754,130.00
31,805.560 LINK
0.0757%
73
LATOKEN
LINK-BTC$23.65
0.0075586 Eth
$731,472.00
30,933.195 LINK
0.0736%
74
BitStorage
LINK-ETH$23.74
0.0075796 Eth
$627,433.00
26,424.090 LINK
0.0629%
75
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$23.75
0.0075869 Eth
$619,380.00
26,138.216 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0622%
76
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$23.65
0.0075542 Eth
$599,348.00
24,976.984 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0594%
77
Coinbase Exchange
LINK-BTC$23.76
0.0075888 Eth
$535,855.00
22,552.150 LINK
0.0537%
78
Coinbase Exchange
LINK-ETH$23.86
0.0076163 Eth
$482,015.00
20,202.220 LINK
0.0481%
79
Slex
LINK-ETH$23.80
0.0075732 Eth
$438,236.00
18,361.420 LINK
0.0437%
80
KuCoin
LINK-USDC$23.71
0.0075861 Eth
$428,903.00
18,088.600 LINK
0.0430%
81
Binance
LINK-BNB$23.65
0.0075680 Eth
$414,038.00
16,818.222 LINK
0.0400%
82
Hotcoin
LINK-BTC$23.73
0.0075556 Eth
$413,040.00
17,406.880 LINK
0.0414%
83
Kraken
LINK-GBP$23.72
0.0075900 Eth
$406,416.00
17,131.463 LINK
0.0408%
84
BitDelta
LINK-USDT$23.75
0.0075881 Eth
$405,621.00
16,954.000 LINK
0.0403%
85
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.66
0.0075523 Eth
$364,387.00
15,054.555 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0358%
86
BYDFi
LINK-USDC$23.72
0.0075812 Eth
$343,879.00
14,496.890 LINK
0.0345%
87
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$23.71
0.0075768 Eth
$317,248.00
13,181.321 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0314%
88
Mercado Bitcoin
LINK-BRL$23.80
0.0076015 Eth
$304,372.00
12,790.842 LINK
0.0304%
89
BitMart
LINK-BTC$23.77
0.0075972 Eth
$280,718.00
11,810.000 LINK
0.0281%
90
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$23.59
0.0075458 Eth
$277,819.00
11,729.919 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0279%
91
PointPay
LINK-BTC$23.69
0.0075682 Eth
$274,267.00
11,460.206 LINK
0.0273%
92
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$23.58
0.0075303 Eth
$258,744.00
263,057.931 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.6259%
93
KuCoin
LINK-BTC$23.72
0.0075899 Eth
$251,251.00
10,591.029 LINK
0.0252%
94
Uniswap V2 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.67
0.0075662 Eth
$220,823.00
9,338.221 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0222%
95
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$23.80
0.0076027 Eth
$216,756.00
9,091.851 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0216%
96
Kraken
LINK-ETH$23.74
0.0075954 Eth
$214,987.00
9,055.822 LINK
0.0215%
97
Bitso
LINK-USD$23.84
0.0075905 Eth
$199,567.00
8,369.797 LINK
0.0199%
98
Binance US
LINK-USDT$23.76
0.0075747 Eth
$178,542.00
7,514.361 LINK
0.0179%
99
Foxbit
LINK-BRL$23.84
0.0076280 Eth
$143,814.00
6,031.866 LINK
0.0144%
100
BitMart
LINK-ETH$23.74
0.0075888 Eth
$101,573.00
4,277.960 LINK
0.0102%

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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