ETH Price: $3,336.38 (-0.38%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

728,306 ( -0.006%)

Market

Price

$19.98 @ 0.005989 ETH (-1.70%)

Onchain Market Cap

$19,980,000,000.00

Circulating Supply Market Cap

$12,607,923,274.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
elpharaoh.eth
Balance
0.017112415399945309 LINK

Value
$0.34 ( ~0.000101906908418397 Eth) [0.0000%]
0xd0e08a720A1e225a42165Cbb50493FB70f31f7b2
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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 18063.64% |ETH 0.0003846 1457.2%

Market

Volume (24H):$749,020,627.00
Market Capitalization:$12,607,923,274.00
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
Coinbase Exchange
LINK-USD$19.97
0.0059855 Eth
$45,336,404.00
2,270,111.870 LINK
17.2455%
2
MEXC
LINK-USDT$19.99
0.0059905 Eth
$18,091,156.00
905,145.200 LINK
6.8762%
3
P2B
LINK-USDT$20.05
0.0059944 Eth
$16,252,408.00
810,523.390 LINK
6.1574%
4
OKX
LINK-USDT$19.94
0.0059781 Eth
$12,693,189.00
622,444.243 LINK
4.7286%
5
Gate.io
LINK-USDT$19.95
0.0059803 Eth
$12,075,412.00
590,209.900 LINK
4.4837%
6
DigiFinex
LINK-USDT$19.94
0.0059795 Eth
$11,177,335.00
560,545.950 LINK
4.2583%
7
HTX
LINK-USDT$19.94
0.0059777 Eth
$9,100,784.00
448,385.586 LINK
3.4063%
8
XT.COM
LINK-USDT$20.00
0.0059933 Eth
$9,016,784.00
442,633.590 LINK
3.3626%
9
Azbit
LINK-USDT$19.99
0.0059907 Eth
$8,959,941.00
439,789.239 LINK
3.3410%
10
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$19.90
0.0059629 Eth
$8,957,779.00
443,631.176 0X514910771AF9CA656AF840DFF83E8264ECF986CA
3.3702%
11
Coinstore
LINK-USDT$19.96
0.0059835 Eth
$7,994,506.00
392,686.550 LINK
2.9831%
12
Binance
LINK-FDUSD$19.97
0.0059870 Eth
$7,977,017.00
392,062.360 LINK
2.9784%
13
Bitunix
LINK-USDT$20.00
0.0059951 Eth
$6,753,639.00
337,750.100 LINK
2.5658%
14
Biconomy.com
LINK-USDT$19.95
0.0059810 Eth
$5,582,279.00
274,773.410 LINK
2.0874%
15
Binance
LINK-USDC$19.98
0.0059879 Eth
$5,556,453.00
273,462.780 LINK
2.0774%
16
BYDFi
LINK-USDT$19.97
0.0059876 Eth
$5,471,816.00
274,042.110 LINK
2.0818%
17
LBank
LINK-USDT$19.97
0.0059876 Eth
$5,071,019.00
253,873.800 LINK
1.9286%
18
BTSE
LINK-USDT$19.93
0.0059779 Eth
$4,984,908.00
250,063.178 LINK
1.8997%
19
LATOKEN
LINK-USDT$19.94
0.0059760 Eth
$4,336,521.00
217,515.209 LINK
1.6524%
20
QMall
LINK-USDT$19.97
0.0059853 Eth
$3,660,947.00
179,643.937 LINK
1.3647%
21
Hotcoin
LINK-USDT$19.94
0.0059791 Eth
$3,559,685.00
178,502.050 LINK
1.3560%
22
KuCoin
LINK-USDT$19.94
0.0059792 Eth
$3,469,824.00
174,021.170 LINK
1.3220%
23
Kraken
LINK-USD$19.95
0.0059831 Eth
$2,981,556.00
149,424.026 LINK
1.1351%
24
Dex-Trade
LINK-USDT$19.98
0.0059874 Eth
$2,809,414.00
140,630.509 LINK
1.0683%
25
FMCPAY
LINK-USDT$19.99
0.0059906 Eth
$2,208,549.00
108,638.628 LINK
0.8253%
26
Bitvavo
LINK-EUR$19.94
0.0059769 Eth
$2,089,331.00
104,757.663 LINK
0.7958%
27
CoinEx
LINK-USDT$20.01
0.0059983 Eth
$2,059,926.00
101,798.975 LINK
0.7733%
28
Dcoin
LINK-USDT$19.95
0.0059787 Eth
$1,936,120.00
97,059.000 LINK
0.7373%
29
Bitbank
LINK-JPY$20.08
0.0060169 Eth
$1,409,215.00
70,196.590 LINK
0.5333%
30
PointPay
LINK-USDT$20.00
0.0059936 Eth
$1,389,046.00
68,251.306 LINK
0.5185%
31
EXMO
LINK-USDT$19.96
0.0059840 Eth
$1,212,161.00
60,734.825 LINK
0.4614%
32
FMCPAY
LINK-ETH$19.96
0.0059820 Eth
$1,208,696.00
60,050.880 LINK
0.4562%
33
Bitstamp
LINK-USD$20.00
0.0059970 Eth
$1,121,974.00
56,098.701 LINK
0.4262%
34
FMCPAY
LINK-BTC$19.99
0.0059922 Eth
$1,106,125.00
54,745.200 LINK
0.4159%
35
Phemex
LINK-USDT$19.94
0.0059760 Eth
$1,033,966.00
51,862.630 LINK
0.3940%
36
Bitstamp
LINK-EUR$19.95
0.0059834 Eth
$913,885.00
45,797.820 LINK
0.3479%
37
WhiteBIT
LINK-BTC$20.00
0.0059938 Eth
$854,015.00
42,707.910 LINK
0.3244%
38
Coinbase Exchange
LINK-USDT$19.96
0.0059813 Eth
$851,558.00
42,668.930 LINK
0.3241%
39
Bybit
LINK-USDC$19.97
0.0059876 Eth
$816,560.00
40,107.374 LINK
0.3047%
40
WhiteBIT
LINK-TRY$20.06
0.0060126 Eth
$809,950.00
40,384.600 LINK
0.3068%
41
Trubit
LINK-USDT$19.95
0.0059816 Eth
$781,418.00
38,477.930 LINK
0.2923%
42
Azbit
LINK-ETH$19.97
0.0059864 Eth
$702,183.00
34,975.184 LINK
0.2657%
43
GMO Japan
LINK-JPY$20.02
0.0060029 Eth
$685,190.00
34,228.600 LINK
0.2600%
44
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$19.91
0.0059666 Eth
$682,474.00
51,818.148 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.3937%
45
Coinbase Exchange
LINK-EUR$19.99
0.0059912 Eth
$652,602.00
32,653.250 LINK
0.2481%
46
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$19.98
0.0059867 Eth
$617,684.00
30,899.587 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2347%
47
Gemini
LINK-USD$19.96
0.0059849 Eth
$614,372.00
30,780.200 LINK
0.2338%
48
EarnBIT
LINK-USDT$19.97
0.0059857 Eth
$613,680.00
30,081.300 LINK
0.2285%
49
BigONE
LINK-USDT$19.96
0.0059813 Eth
$569,177.00
28,519.840 LINK
0.2167%
50
Binance
LINK-EUR$19.98
0.0059901 Eth
$556,573.00
27,421.540 LINK
0.2083%
51
HashKey Exchange
LINK-USD$20.03
0.0060040 Eth
$480,933.00
23,374.062 LINK
0.1776%
52
QMall
LINK-USDC$19.96
0.0059821 Eth
$454,933.00
22,393.034 LINK
0.1701%
53
Koinpark
LINK-USDT$19.97
0.0059851 Eth
$453,996.00
22,737.959 LINK
0.1727%
54
KuCoin
LINK-USDC$19.92
0.0059730 Eth
$422,218.00
21,197.509 LINK
0.1610%
55
Bitbegin
LINK-USDT$19.97
0.0059877 Eth
$403,927.00
19,886.788 LINK
0.1511%
56
itBit
LINK-USD$20.00
0.0059965 Eth
$359,651.00
17,982.555 LINK
0.1366%
57
Slex
LINK-ETH$19.93
0.0059758 Eth
$344,359.00
17,129.110 LINK
0.1301%
58
Coinbase Exchange
LINK-GBP$19.99
0.0059918 Eth
$334,170.00
16,718.630 LINK
0.1270%
59
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$20.02
0.0059992 Eth
$322,864.00
329,402.297 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.5024%
60
WhiteBIT
LINK-EUR$19.94
0.0059756 Eth
$314,449.00
15,771.170 LINK
0.1198%
61
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$19.88
0.0059585 Eth
$300,747.00
14,888.303 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1131%
62
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.89
0.0059657 Eth
$277,352.00
13,782.958 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1047%
63
BitMart
LINK-BTC$19.99
0.0059921 Eth
$258,639.00
12,938.260 LINK
0.0983%
64
Coinbase Exchange
LINK-BTC$19.98
0.0059895 Eth
$252,067.00
12,613.690 LINK
0.0958%
65
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$19.95
0.0059803 Eth
$234,721.00
11,369.527 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0864%
66
BitDelta
LINK-USDT$19.95
0.0059811 Eth
$222,026.00
10,921.000 LINK
0.0830%
67
Bitci TR
LINK-TRY$20.18
0.0060491 Eth
$205,945.00
10,117.364 LINK
0.0769%
68
Bitkub
LINK-THB$19.97
0.0059861 Eth
$186,331.00
9,332.657 LINK
0.0709%
69
Bitget
LINK-USDC$19.97
0.0059884 Eth
$147,643.00
7,119.480 LINK
0.0541%
70
Hotcoin
LINK-BTC$19.99
0.0059906 Eth
$137,565.00
6,882.230 LINK
0.0523%
71
Coinbase Exchange
LINK-ETH$19.98
0.0059902 Eth
$131,917.00
6,602.720 LINK
0.0502%
72
BYDFi
LINK-USDC$19.95
0.0059794 Eth
$129,089.00
6,470.960 LINK
0.0492%
73
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$19.99
0.0059912 Eth
$127,549.00
6,241.314 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0474%
74
LATOKEN
LINK-BTC$19.97
0.0059837 Eth
$125,981.00
6,309.202 LINK
0.0479%
75
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$20.02
0.0059992 Eth
$114,071.00
5,593.937 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0425%
76
BitStorage
LINK-ETH$19.97
0.0059850 Eth
$113,292.00
5,674.490 LINK
0.0431%
77
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$20.02
0.0059995 Eth
$97,634.00
4,863.929 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0370%
78
Kraken
LINK-GBP$19.98
0.0059911 Eth
$97,524.00
4,881.005 LINK
0.0371%
79
OKX
LINK-USDC$19.99
0.0059914 Eth
$97,006.00
4,757.828 LINK
0.0361%
80
Foxbit
LINK-BRL$20.15
0.0060400 Eth
$92,872.00
4,509.215 LINK
0.0343%
81
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.99
0.0059922 Eth
$88,593.00
4,396.989 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0334%
82
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$20.11
0.0060307 Eth
$88,062.00
4,345.002 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0330%
83
Binance US
LINK-USDT$19.98
0.0059900 Eth
$79,302.00
3,969.378 LINK
0.0302%
84
EXMO
LINK-BTC$20.16
0.0060423 Eth
$71,683.00
3,556.064 LINK
0.0270%
85
Mercado Bitcoin
LINK-BRL$20.10
0.0060247 Eth
$68,995.00
3,432.388 LINK
0.0261%
86
Bitso
LINK-USD$19.98
0.0059885 Eth
$67,742.00
3,390.396 LINK
0.0258%
87
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$19.94
0.0059767 Eth
$62,787.00
3,059.071 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0232%
88
BitMEX
LINK-USDT$20.01
0.0059985 Eth
$56,479.00
2,822.700 LINK
0.0214%
89
PancakeSwap (v2)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$19.99
0.0059922 Eth
$54,295.00
2,672.659 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0203%
90
Hotcoin
LINK-ETH$19.99
0.0059903 Eth
$50,130.00
2,508.230 LINK
0.0191%
91
Coins.ph
LINK-PHP$20.04
0.0060061 Eth
$43,822.00
2,164.915 LINK
0.0164%
92
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$19.91
0.0059666 Eth
$40,309.00
3,042.206 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.0231%
93
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$19.92
0.0059686 Eth
$34,994.00
36,380.026 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.2764%
94
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$19.94
0.0059761 Eth
$30,048.00
1,490.556 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0113%
95
CoinEx
LINK-USDC$19.87
0.0059573 Eth
$27,685.00
1,358.215 LINK
0.0103%
96
Uniswap V3 (Avalanche)
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$20.06
0.0060168 Eth
$26,537.00
1,348.033 0X5947BB275C521040051D82396192181B413227A3
0.0102%
97
LFJ
0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$20.05
0.0060125 Eth
$24,055.00
1,213.212 0X5947BB275C521040051D82396192181B413227A3
0.0092%
98
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$19.91
0.0059666 Eth
$17,575.24
867.767 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0066%
99
Dex-Trade
LINK-ETH$19.97
0.0059866 Eth
$14,971.47
749.790 LINK
0.0057%
100
zondacrypto
LINK-USDC$19.97
0.0059888 Eth
$13,674.62
684.614 LINK
0.0052%

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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