ETH Price: $3,339.69 (-2.42%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

728,375 ( 0.000%)

Market

Price

$20.17 @ 0.006039 ETH (-3.63%)

Onchain Market Cap

$20,170,000,000.00

Circulating Supply Market Cap

$12,731,245,674.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
60 LINK

Value
$1,210.20 ( ~0.362368935308885 Eth) [0.0000%]
0x0db80eaf8da777444053e2ffff79326a50603355
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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 18236.36% |ETH 0.0003846 1470.2%

Market

Volume (24H):$665,833,392.00
Market Capitalization:$12,731,245,674.00
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$20.16
0.0060472 Eth
$81,406,965.00
4,049,953.620 LINK
22.3365%
2
Coinbase Exchange
LINK-USD$20.18
0.0060445 Eth
$38,579,392.00
1,911,574.250 LINK
10.5428%
3
Slex
LINK-USDT$20.19
0.0060466 Eth
$20,669,848.00
1,028,700.960 LINK
5.6735%
4
WhiteBIT
LINK-USDT$20.16
0.0060513 Eth
$20,281,023.00
1,005,813.360 LINK
5.5473%
5
Bitget
LINK-USDT$20.21
0.0060538 Eth
$18,823,025.00
933,851.501 LINK
5.1504%
6
Bybit
LINK-USDT$20.18
0.0060465 Eth
$16,235,254.00
806,320.154 LINK
4.4470%
7
CoinW
LINK-USDT$20.20
0.0060515 Eth
$14,284,981.00
707,187.660 LINK
3.9003%
8
OKX
LINK-USDT$20.18
0.0060451 Eth
$10,590,148.00
526,629.701 LINK
2.9045%
9
DigiFinex
LINK-USDT$20.19
0.0060498 Eth
$10,189,195.00
504,558.710 LINK
2.7828%
10
HTX
LINK-USDT$20.19
0.0060479 Eth
$8,388,186.00
417,742.192 LINK
2.3039%
11
XT.COM
LINK-USDT$20.20
0.0060492 Eth
$8,087,708.00
402,532.620 LINK
2.2201%
12
Azbit
LINK-USDT$20.20
0.0060485 Eth
$8,059,517.00
401,077.133 LINK
2.2120%
13
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$20.14
0.0060327 Eth
$7,392,033.00
367,747.028 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.0282%
14
Coinstore
LINK-USDT$20.17
0.0060405 Eth
$7,285,987.00
362,864.850 LINK
2.0013%
15
Binance
LINK-FDUSD$20.19
0.0060455 Eth
$6,821,829.00
339,082.630 LINK
1.8701%
16
Bitunix
LINK-USDT$20.18
0.0060451 Eth
$6,247,329.00
309,440.690 LINK
1.7066%
17
Biconomy.com
LINK-USDT$20.16
0.0060509 Eth
$5,186,793.00
258,173.559 LINK
1.4239%
18
BYDFi
LINK-USDT$20.14
0.0060394 Eth
$5,164,059.00
256,357.610 LINK
1.4139%
19
BTSE
LINK-USDT$20.20
0.0060505 Eth
$4,444,105.00
220,026.620 LINK
1.2135%
20
LBank
LINK-USDT$20.19
0.0060454 Eth
$4,032,399.00
199,743.040 LINK
1.1016%
21
LATOKEN
LINK-USDT$20.19
0.0060478 Eth
$3,913,251.00
193,846.349 LINK
1.0691%
22
QMall
LINK-USDT$20.14
0.0060420 Eth
$3,310,479.00
164,819.616 LINK
0.9090%
23
KuCoin
LINK-USDT$20.20
0.0060504 Eth
$3,143,520.00
155,638.010 LINK
0.8584%
24
Kraken
LINK-USD$20.20
0.0060524 Eth
$3,020,014.00
149,484.763 LINK
0.8244%
25
Hotcoin
LINK-USDT$20.17
0.0060526 Eth
$2,822,292.00
139,933.480 LINK
0.7718%
26
Dex-Trade
LINK-USDT$20.20
0.0060508 Eth
$2,517,907.00
124,658.300 LINK
0.6875%
27
CoinEx
LINK-USDT$20.13
0.0060458 Eth
$2,016,286.00
100,559.623 LINK
0.5546%
28
Bitvavo
LINK-EUR$20.16
0.0060446 Eth
$1,827,220.00
90,646.593 LINK
0.4999%
29
Dcoin
LINK-USDT$20.19
0.0060470 Eth
$1,823,008.00
90,285.000 LINK
0.4979%
30
PointPay
LINK-USDT$20.19
0.0060462 Eth
$1,348,517.00
67,124.818 LINK
0.3702%
31
EXMO
LINK-USDT$20.18
0.0060462 Eth
$1,116,538.00
55,320.693 LINK
0.3051%
32
Bitbank
LINK-JPY$20.30
0.0060798 Eth
$1,088,286.00
53,622.806 LINK
0.2957%
33
Phemex
LINK-USDT$20.15
0.0060414 Eth
$918,818.00
45,605.760 LINK
0.2515%
34
Bitstamp
LINK-EUR$20.20
0.0060525 Eth
$841,898.00
41,671.584 LINK
0.2298%
35
tanX
LINK-USDC$20.24
0.0060594 Eth
$801,979.00
39,861.750 LINK
0.2198%
36
WhiteBIT
LINK-BTC$20.15
0.0060460 Eth
$757,110.00
37,566.010 LINK
0.2072%
37
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$20.23
0.0060591 Eth
$725,935.00
36,047.310 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1988%
38
Bybit
LINK-USDC$20.18
0.0060455 Eth
$708,851.00
35,226.301 LINK
0.1943%
39
Binance
LINK-EUR$20.17
0.0060536 Eth
$688,912.00
34,172.620 LINK
0.1885%
40
Coinbase Exchange
LINK-EUR$20.20
0.0060521 Eth
$659,341.00
32,635.510 LINK
0.1800%
41
WhiteBIT
LINK-TRY$20.28
0.0060770 Eth
$645,039.00
31,798.890 LINK
0.1754%
42
Gemini
LINK-USD$20.22
0.0060563 Eth
$591,915.00
29,279.859 LINK
0.1615%
43
Binance
LINK-TRY$20.26
0.0060810 Eth
$568,970.00
28,143.480 LINK
0.1552%
44
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$20.19
0.0060450 Eth
$560,652.00
41,802.108 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2305%
45
GMO Japan
LINK-JPY$20.34
0.0060939 Eth
$557,017.00
27,382.400 LINK
0.1510%
46
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$20.20
0.0060518 Eth
$551,389.00
27,357.178 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1509%
47
Coinbase Exchange
LINK-USDT$20.35
0.0060936 Eth
$546,957.00
26,877.247 LINK
0.1482%
48
HashKey Exchange
LINK-USD$20.17
0.0060397 Eth
$537,433.00
26,654.060 LINK
0.1470%
49
EarnBIT
LINK-USDT$20.18
0.0060449 Eth
$516,899.00
25,706.081 LINK
0.1418%
50
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$20.21
0.0060544 Eth
$516,074.00
25,537.959 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1408%
51
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$20.21
0.0060530 Eth
$480,244.00
479,757.248 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.6460%
52
BigONE
LINK-USDT$20.16
0.0060409 Eth
$434,940.00
21,577.460 LINK
0.1190%
53
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$20.14
0.0060311 Eth
$404,477.00
19,736.803 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.1089%
54
KuCoin
LINK-USDC$20.17
0.0060427 Eth
$399,900.00
19,824.551 LINK
0.1093%
55
QMall
LINK-USDC$20.18
0.0060546 Eth
$390,754.00
19,420.623 LINK
0.1071%
56
Kraken
LINK-ETH$20.40
0.0061104 Eth
$386,771.00
18,962.775 LINK
0.1046%
57
Bitbegin
LINK-USDT$20.27
0.0060517 Eth
$384,630.00
19,099.976 LINK
0.1053%
58
itBit
LINK-USD$20.11
0.0060377 Eth
$359,111.00
17,857.322 LINK
0.0985%
59
Slex
LINK-ETH$20.17
0.0060428 Eth
$352,815.00
17,601.300 LINK
0.0971%
60
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$20.14
0.0060328 Eth
$339,531.00
16,834.678 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0928%
61
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$20.28
0.0060761 Eth
$290,106.00
14,391.786 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0794%
62
WhiteBIT
LINK-EUR$20.14
0.0060336 Eth
$285,261.00
14,163.880 LINK
0.0781%
63
BitMart
LINK-BTC$20.18
0.0060446 Eth
$276,459.00
13,698.940 LINK
0.0756%
64
Coinbase Exchange
LINK-BTC$20.20
0.0060503 Eth
$267,084.00
13,223.690 LINK
0.0729%
65
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$20.20
0.0060518 Eth
$266,935.00
266,304.043 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.4687%
66
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$20.22
0.0060581 Eth
$256,770.00
12,784.293 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0705%
67
BitDelta
LINK-USDT$20.13
0.0060378 Eth
$216,303.00
10,731.000 LINK
0.0592%
68
Bitci TR
LINK-TRY$20.17
0.0060395 Eth
$207,308.00
10,269.820 LINK
0.0566%
69
Coinbase Exchange
LINK-GBP$20.19
0.0060476 Eth
$204,380.00
10,123.750 LINK
0.0558%
70
ProBit Global
LINK-USDT$20.17
0.0060516 Eth
$180,256.00
8,938.916 LINK
0.0493%
71
ProBit Global
LINK-BTC$20.06
0.0060381 Eth
$136,330.00
6,795.861 LINK
0.0375%
72
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$20.21
0.0060536 Eth
$121,291.00
5,998.199 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0331%
73
BitMart
LINK-ETH$20.18
0.0060466 Eth
$119,944.00
5,942.740 LINK
0.0328%
74
LATOKEN
LINK-BTC$20.17
0.0060520 Eth
$111,718.00
5,539.009 LINK
0.0305%
75
BTCMarkets
LINK-AUD$20.10
0.0060202 Eth
$109,460.00
5,445.524 LINK
0.0300%
76
Coinbase Exchange
LINK-ETH$20.22
0.0060576 Eth
$107,101.00
5,296.470 LINK
0.0292%
77
OKX
LINK-USDC$20.19
0.0060496 Eth
$102,982.00
5,121.721 LINK
0.0282%
78
Hotcoin
LINK-BTC$20.19
0.0060457 Eth
$101,008.00
5,002.840 LINK
0.0276%
79
BYDFi
LINK-USDC$20.12
0.0060349 Eth
$95,347.00
4,738.920 LINK
0.0261%
80
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$20.21
0.0060544 Eth
$94,713.00
4,701.039 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0259%
81
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$20.25
0.0060669 Eth
$85,598.00
4,245.240 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0234%
82
Binance US
LINK-USDT$20.06
0.0060413 Eth
$84,584.00
4,216.002 LINK
0.0233%
83
Bitkub
LINK-THB$20.10
0.0060332 Eth
$82,263.00
4,092.001 LINK
0.0226%
84
Kraken
LINK-GBP$20.16
0.0060383 Eth
$82,009.00
4,068.792 LINK
0.0224%
85
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$20.16
0.0060394 Eth
$70,026.00
3,491.000 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0193%
86
EXMO
LINK-BTC$20.20
0.0060528 Eth
$69,838.00
3,456.491 LINK
0.0191%
87
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$20.05
0.0060046 Eth
$64,512.00
3,213.628 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0177%
88
Gemini
LINK-BTC$20.28
0.0060752 Eth
$60,034.00
2,960.410 LINK
0.0163%
89
Bitso
LINK-USD$20.05
0.0060137 Eth
$58,232.00
2,904.157 LINK
0.0160%
90
Mercado Bitcoin
LINK-BRL$20.29
0.0060780 Eth
$52,464.00
2,585.745 LINK
0.0143%
91
Hotcoin
LINK-ETH$20.19
0.0060457 Eth
$36,706.00
1,818.000 LINK
0.0100%
92
zondacrypto
LINK-PLN$20.18
0.0060642 Eth
$29,915.00
1,482.338 LINK
0.0082%
93
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$20.14
0.0060334 Eth
$29,891.00
1,478.306 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0082%
94
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$20.20
0.0060507 Eth
$25,161.00
1,255.235 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0069%
95
CoinEx
LINK-USDC$20.11
0.0060336 Eth
$22,368.00
1,110.299 LINK
0.0061%
96
zondacrypto
LINK-USDC$20.36
0.0061046 Eth
$19,338.21
949.685 LINK
0.0052%
97
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$20.22
0.0060590 Eth
$18,028.73
18,077.520 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.0997%
98
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7$20.14
0.0060324 Eth
$16,221.53
805.257 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0044%
99
Dex-Trade
LINK-ETH$20.18
0.0060451 Eth
$13,669.57
677.400 LINK
0.0037%
100
Ace
LINK-USDT$20.08
0.0060448 Eth
$3,461.61
171.550 LINK
0.0009%

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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