ETH Price: $3,323.48 (-1.95%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

728,316 ( -0.008%)

Market

Price

$19.78 @ 0.005952 ETH (-3.92%)

Onchain Market Cap

$19,780,000,000.00

Circulating Supply Market Cap

$12,482,855,983.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
Binance Dep: 0xD9cF0B9818a459b2291E03e2ad185875377B5FE3
Balance
0 LINK

Value
$0.00
0xd9cf0b9818a459b2291e03e2ad185875377b5fe3
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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 17881.82% |ETH 0.0003846 1447.58%

Market

Volume (24H):$746,457,653.00
Market Capitalization:$12,482,855,983.00
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$19.81
0.0059657 Eth
$89,354,085.00
4,414,225.840 LINK
21.2684%
2
Coinbase Exchange
LINK-USD$19.79
0.0059558 Eth
$43,071,382.00
2,175,981.690 LINK
10.4842%
3
WhiteBIT
LINK-USDT$19.79
0.0059547 Eth
$21,301,882.00
1,076,348.900 LINK
5.1860%
4
Slex
LINK-USDT$19.80
0.0059576 Eth
$21,047,177.00
1,042,569.440 LINK
5.0233%
5
MEXC
LINK-USDT$19.79
0.0059555 Eth
$17,303,727.00
874,241.120 LINK
4.2122%
6
CoinW
LINK-USDT$19.79
0.0059540 Eth
$15,376,912.00
777,199.290 LINK
3.7447%
7
P2B
LINK-USDT$19.86
0.0059874 Eth
$13,115,117.00
660,342.490 LINK
3.1816%
8
OKX
LINK-USDT$19.82
0.0059638 Eth
$12,190,257.00
600,781.165 LINK
2.8947%
9
Gate.io
LINK-USDT$19.83
0.0059653 Eth
$11,642,667.00
571,316.160 LINK
2.7527%
10
DigiFinex
LINK-USDT$19.83
0.0059635 Eth
$10,996,928.00
554,647.450 LINK
2.6724%
11
XT.COM
LINK-USDT$19.78
0.0059516 Eth
$8,942,423.00
441,831.480 LINK
2.1288%
12
FameEX
LINK-USDT$19.80
0.0059551 Eth
$8,918,262.00
440,626.121 LINK
2.1230%
13
Azbit
LINK-USDT$19.79
0.0059555 Eth
$8,906,353.00
439,969.546 LINK
2.1198%
14
HTX
LINK-USDT$19.82
0.0059639 Eth
$8,896,018.00
440,413.561 LINK
2.1220%
15
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$19.73
0.0059347 Eth
$8,092,148.00
403,512.325 0X514910771AF9CA656AF840DFF83E8264ECF986CA
1.9442%
16
Coinstore
LINK-USDT$19.75
0.0059426 Eth
$7,956,268.00
393,453.430 LINK
1.8957%
17
Binance
LINK-FDUSD$19.81
0.0059559 Eth
$7,871,566.00
388,299.960 LINK
1.8709%
18
Bitunix
LINK-USDT$19.79
0.0059554 Eth
$6,776,331.00
342,413.890 LINK
1.6498%
19
Biconomy.com
LINK-USDT$19.80
0.0059564 Eth
$5,568,931.00
275,411.280 LINK
1.3270%
20
BYDFi
LINK-USDT$19.77
0.0059566 Eth
$5,396,678.00
273,011.010 LINK
1.3154%
21
BTSE
LINK-USDT$19.81
0.0059593 Eth
$4,477,904.00
226,009.559 LINK
1.0889%
22
LATOKEN
LINK-USDT$19.76
0.0059573 Eth
$4,324,069.00
218,815.245 LINK
1.0543%
23
LBank
LINK-USDT$19.78
0.0059517 Eth
$4,300,096.00
217,389.130 LINK
1.0474%
24
QMall
LINK-USDT$19.80
0.0059585 Eth
$3,583,964.00
177,118.014 LINK
0.8534%
25
KuCoin
LINK-USDT$19.82
0.0059629 Eth
$3,376,418.00
170,330.508 LINK
0.8207%
26
Hotcoin
LINK-USDT$19.82
0.0059647 Eth
$3,314,696.00
167,235.490 LINK
0.8058%
27
Kraken
LINK-USD$19.80
0.0059572 Eth
$3,109,468.00
157,077.556 LINK
0.7568%
28
Dex-Trade
LINK-USDT$19.79
0.0059539 Eth
$2,741,928.00
138,551.999 LINK
0.6676%
29
FMCPAY
LINK-USDT$19.78
0.0059526 Eth
$2,275,864.00
112,571.286 LINK
0.5424%
30
CoinEx
LINK-USDT$19.82
0.0059636 Eth
$2,240,924.00
111,136.914 LINK
0.5355%
31
Bitvavo
LINK-EUR$19.82
0.0059623 Eth
$1,942,017.00
98,007.215 LINK
0.4722%
32
Dcoin
LINK-USDT$19.78
0.0059512 Eth
$1,851,640.00
93,615.000 LINK
0.4511%
33
PointPay
LINK-USDT$19.79
0.0059555 Eth
$1,451,459.00
71,726.117 LINK
0.3456%
34
Bitbank
LINK-JPY$19.87
0.0059777 Eth
$1,317,932.00
66,321.405 LINK
0.3195%
35
EXMO
LINK-USDT$19.81
0.0059595 Eth
$1,186,159.00
59,866.400 LINK
0.2884%
36
FMCPAY
LINK-ETH$19.78
0.0059518 Eth
$1,180,480.00
59,101.600 LINK
0.2848%
37
FMCPAY
LINK-BTC$19.78
0.0059530 Eth
$1,086,288.00
54,254.000 LINK
0.2614%
38
Bitstamp
LINK-USD$19.77
0.0059495 Eth
$1,083,138.00
54,786.948 LINK
0.2640%
39
Phemex
LINK-USDT$19.74
0.0059505 Eth
$968,057.00
49,045.970 LINK
0.2363%
40
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$19.89
0.0059846 Eth
$915,942.00
45,473.580 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.2191%
41
Bitstamp
LINK-EUR$19.81
0.0059615 Eth
$886,491.00
44,749.989 LINK
0.2156%
42
Bybit
LINK-USDC$19.81
0.0059585 Eth
$822,100.00
40,549.029 LINK
0.1954%
43
WhiteBIT
LINK-BTC$19.79
0.0059539 Eth
$796,750.00
40,263.890 LINK
0.1940%
44
Trubit
LINK-USDT$19.80
0.0059568 Eth
$777,088.00
38,459.390 LINK
0.1853%
45
AscendEX (BitMax)
LINK-BTC$19.87
0.0059784 Eth
$764,574.00
38,486.700 LINK
0.1854%
46
Coinbase Exchange
LINK-USDT$19.91
0.0059901 Eth
$748,277.00
37,584.509 LINK
0.1811%
47
WhiteBIT
LINK-TRY$19.89
0.0059858 Eth
$734,812.00
36,944.980 LINK
0.1780%
48
Gemini
LINK-USD$19.76
0.0059460 Eth
$722,511.00
36,567.356 LINK
0.1762%
49
Azbit
LINK-ETH$19.79
0.0059534 Eth
$721,242.00
36,172.561 LINK
0.1743%
50
Binance
LINK-TRY$19.90
0.0059909 Eth
$655,934.00
32,160.830 LINK
0.1550%
51
GMO Japan
LINK-JPY$19.80
0.0059556 Eth
$648,701.00
32,769.900 LINK
0.1579%
52
Coinbase Exchange
LINK-EUR$19.83
0.0059667 Eth
$631,867.00
31,863.290 LINK
0.1535%
53
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.73
0.0059366 Eth
$612,286.00
30,786.095 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1483%
54
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$19.75
0.0059402 Eth
$576,237.00
43,933.794 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2117%
55
Binance
LINK-EUR$19.84
0.0059642 Eth
$573,203.00
28,338.310 LINK
0.1365%
56
EarnBIT
LINK-USDT$19.74
0.0059449 Eth
$571,855.00
28,248.236 LINK
0.1361%
57
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$19.81
0.0059616 Eth
$567,901.00
28,603.360 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1378%
58
HashKey Exchange
LINK-USD$19.82
0.0059644 Eth
$544,322.00
26,630.559 LINK
0.1283%
59
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$19.76
0.0059445 Eth
$507,566.00
523,179.222 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.5208%
60
BigONE
LINK-USDT$19.74
0.0059345 Eth
$506,105.00
25,635.770 LINK
0.1235%
61
QMall
LINK-USDC$19.80
0.0059579 Eth
$438,924.00
21,674.013 LINK
0.1044%
62
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$19.84
0.0059691 Eth
$425,053.00
20,912.024 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1008%
63
KuCoin
LINK-USDC$19.76
0.0059445 Eth
$406,394.00
20,565.004 LINK
0.0991%
64
Bitbegin
LINK-USDT$19.78
0.0059623 Eth
$393,339.00
19,444.501 LINK
0.0937%
65
itBit
LINK-USD$19.78
0.0059628 Eth
$372,700.00
18,842.255 LINK
0.0908%
66
Slex
LINK-ETH$19.80
0.0059571 Eth
$348,356.00
17,443.240 LINK
0.0840%
67
WhiteBIT
LINK-EUR$19.68
0.0059199 Eth
$308,075.00
15,657.950 LINK
0.0754%
68
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$19.73
0.0059368 Eth
$278,874.00
287,129.440 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.3834%
69
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$19.75
0.0059426 Eth
$272,298.00
13,555.515 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0653%
70
BitMart
LINK-BTC$19.78
0.0059510 Eth
$257,229.00
13,005.500 LINK
0.0627%
71
Coinbase Exchange
LINK-BTC$19.81
0.0059594 Eth
$253,935.00
12,821.530 LINK
0.0618%
72
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.76
0.0059470 Eth
$245,116.00
12,247.960 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0590%
73
Coinbase Exchange
LINK-GBP$19.79
0.0059538 Eth
$224,031.00
11,321.750 LINK
0.0545%
74
BitDelta
LINK-USDT$19.79
0.0059547 Eth
$210,748.00
10,417.000 LINK
0.0502%
75
Bitci TR
LINK-TRY$19.77
0.0059583 Eth
$206,281.00
10,177.000 LINK
0.0490%
76
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$19.80
0.0059566 Eth
$198,299.00
9,628.175 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0464%
77
Bitget
LINK-USDC$19.84
0.0059675 Eth
$138,625.00
6,689.390 LINK
0.0322%
78
LATOKEN
LINK-BTC$19.81
0.0059612 Eth
$127,360.00
6,427.692 LINK
0.0310%
79
Hotcoin
LINK-BTC$19.81
0.0059618 Eth
$123,131.00
6,215.300 LINK
0.0299%
80
BYDFi
LINK-USDC$19.78
0.0059559 Eth
$116,272.00
5,878.600 LINK
0.0283%
81
BitMart
LINK-ETH$19.78
0.0059504 Eth
$114,101.00
5,769.520 LINK
0.0278%
82
Korbit
LINK-KRW$19.95
0.0060051 Eth
$109,808.00
5,299.686 LINK
0.0255%
83
Coinbase Exchange
LINK-ETH$19.84
0.0059687 Eth
$104,189.00
5,252.240 LINK
0.0253%
84
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$19.75
0.0059432 Eth
$90,965.00
4,583.666 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0221%
85
Foxbit
LINK-BRL$20.01
0.0060206 Eth
$87,517.00
4,248.337 LINK
0.0205%
86
OKX
LINK-USDC$19.79
0.0059568 Eth
$84,345.00
4,158.401 LINK
0.0200%
87
Bitkub
LINK-THB$19.78
0.0059523 Eth
$83,339.00
4,212.683 LINK
0.0203%
88
Binance US
LINK-USDT$19.79
0.0059546 Eth
$81,068.00
4,097.252 LINK
0.0197%
89
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$19.97
0.0060097 Eth
$80,078.00
3,981.626 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0192%
90
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$19.78
0.0059502 Eth
$77,480.00
3,870.336 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0186%
91
Kraken
LINK-GBP$19.80
0.0059578 Eth
$76,614.00
3,869.863 LINK
0.0186%
92
EXMO
LINK-BTC$19.82
0.0059622 Eth
$73,551.00
3,710.510 LINK
0.0179%
93
Bitso
LINK-USD$19.83
0.0059613 Eth
$68,157.00
3,436.840 LINK
0.0166%
94
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$19.89
0.0059856 Eth
$59,769.00
2,927.903 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0141%
95
Hotcoin
LINK-ETH$19.81
0.0059608 Eth
$44,703.00
2,256.870 LINK
0.0109%
96
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$19.75
0.0059400 Eth
$32,405.00
2,459.664 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.0119%
97
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$19.75
0.0059434 Eth
$29,253.00
30,650.519 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.1477%
98
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$19.74
0.0059402 Eth
$26,086.00
1,303.314 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0063%
99
Gate.io
LINK-TRY$19.92
0.0059900 Eth
$20,906.00
1,030.802 LINK
0.0050%
100
Dex-Trade
LINK-ETH$19.81
0.0059704 Eth
$13,729.01
693.090 LINK
0.0033%

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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