ETH Price: $2,483.06 (+1.79%)
Gas: 6.13 Gwei

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

721,673 ( 0.006%)

Market

Price

$11.06 @ 0.004454 ETH (+1.10%)

Onchain Market Cap

$11,060,000,000.00

Circulating Supply Market Cap

$6,927,349,187.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
341.29484235 LINK

Value
$3,774.72 ( ~1.5202 Eth) [0.0000%]
0x4484a22ad3ccf80cdc1c3e510d331c6d7cebdccc
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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 9954.55% |ETH 0.0003846 1058.09%

Market

Volume (24H):$287,781,471.00
Market Capitalization:$6,927,349,187.00
Circulating Supply:626,849,971.00 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
LBank
LINK-USDT$10.98
0.0044240 Eth
$34,000,543.00
3,097,182.900 LINK
22.0310%
2
Binance
LINK-USDT$11.04
0.0044483 Eth
$15,539,343.00
1,409,104.580 LINK
10.0233%
3
Coinbase Exchange
LINK-USD$11.04
0.0044479 Eth
$9,618,647.00
871,254.240 LINK
6.1974%
4
Bitget
LINK-USDT$11.04
0.0044479 Eth
$8,666,254.00
786,875.690 LINK
5.5972%
5
HTX
LINK-USDT$11.05
0.0044536 Eth
$8,320,088.00
755,860.681 LINK
5.3766%
6
Websea
LINK-USDT$11.05
0.0044526 Eth
$6,955,498.00
0.000 LINK
0.0000%
7
Bybit
LINK-USDT$11.04
0.0044506 Eth
$6,505,892.00
589,834.922 LINK
4.1956%
8
Azbit
LINK-USDT$11.05
0.0044534 Eth
$5,304,787.00
482,045.630 LINK
3.4289%
9
WhiteBIT
LINK-USDT$11.03
0.0044462 Eth
$4,774,295.00
432,729.270 LINK
3.0781%
10
Poloniex
LINK-USDT$11.10
0.0044716 Eth
$3,637,571.00
330,022.285 LINK
2.3475%
11
P2B
LINK-USDT$11.05
0.0044502 Eth
$3,230,557.00
292,441.200 LINK
2.0802%
12
Biconomy.com
LINK-USDT$11.06
0.0044542 Eth
$3,161,885.00
287,175.360 LINK
2.0427%
13
BVOX
LINK-USDT$11.04
0.0044494 Eth
$3,107,486.00
281,793.544 LINK
2.0045%
14
WEEX
LINK-USDT$11.06
0.0044549 Eth
$2,902,257.00
263,214.870 LINK
1.8723%
15
Slex
LINK-USDT$11.07
0.0044583 Eth
$2,668,948.00
242,055.660 LINK
1.7218%
16
FameEX
LINK-USDT$11.04
0.0044498 Eth
$2,453,140.00
223,106.703 LINK
1.5870%
17
BTSE
LINK-USDT$11.04
0.0044485 Eth
$2,135,249.00
193,431.210 LINK
1.3759%
18
DigiFinex
LINK-USDT$11.05
0.0044541 Eth
$1,922,906.00
173,978.340 LINK
1.2375%
19
OKX
LINK-USDT$11.04
0.0044507 Eth
$1,824,815.00
165,677.742 LINK
1.1785%
20
AscendEX (BitMax)
LINK-USDT$11.04
0.0044491 Eth
$1,714,297.00
155,276.600 LINK
1.1045%
21
KuCoin
LINK-USDT$11.04
0.0044507 Eth
$1,705,037.00
154,383.294 LINK
1.0982%
22
Deepcoin
LINK-USDT$11.06
0.0044547 Eth
$1,609,905.00
146,512.420 LINK
1.0422%
23
Upbit
LINK-KRW$11.03
0.0044442 Eth
$1,559,403.00
141,406.788 LINK
1.0059%
24
XT.COM
LINK-USDT$11.06
0.0044558 Eth
$1,360,692.00
123,371.670 LINK
0.8776%
25
Toobit
LINK-USDT$11.04
0.0044481 Eth
$1,311,150.00
118,926.320 LINK
0.8460%
26
CoinW
LINK-USDT$11.05
0.0044531 Eth
$1,292,117.00
116,894.660 LINK
0.8315%
27
Trubit
LINK-USDT$11.05
0.0044522 Eth
$1,169,492.00
105,936.620 LINK
0.7536%
28
Binance
LINK-BTC$11.04
0.0044477 Eth
$1,133,791.00
102,361.740 LINK
0.7281%
29
C-Patex
LINK-USDT$11.05
0.0044531 Eth
$1,076,463.00
97,410.213 LINK
0.6929%
30
HashKey Global
LINK-USDT$11.08
0.0044651 Eth
$996,340.00
90,992.537 LINK
0.6473%
31
Crypto.com Exchange
LINK-USDT$11.04
0.0044490 Eth
$924,862.00
83,774.670 LINK
0.5959%
32
Gate.io
LINK-USDT$11.04
0.0044491 Eth
$923,180.00
83,741.360 LINK
0.5957%
33
Azbit
LINK-ETH$11.05
0.0044526 Eth
$903,387.00
81,153.724 LINK
0.5773%
34
Bitunix
LINK-USDT$11.05
0.0044529 Eth
$886,791.00
80,275.310 LINK
0.5710%
35
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$11.04
0.0044474 Eth
$822,612.00
74,100.771 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.5271%
36
MEXC
LINK-USDT$11.03
0.0044437 Eth
$810,135.00
73,465.470 LINK
0.5226%
37
BYDFi
LINK-USDT$11.06
0.0044538 Eth
$763,679.00
69,065.900 LINK
0.4913%
38
Binance
LINK-FDUSD$11.06
0.0044555 Eth
$752,067.00
68,297.730 LINK
0.4858%
39
FMCPAY
LINK-USDT$11.05
0.0044502 Eth
$747,892.00
67,877.764 LINK
0.4828%
40
Kraken
LINK-USD$11.04
0.0044510 Eth
$689,649.00
62,440.950 LINK
0.4442%
41
Niza Global
LINK-USD$11.04
0.0044495 Eth
$688,825.00
62,465.950 LINK
0.4443%
42
Hotcoin
LINK-USDT$11.04
0.0044466 Eth
$682,036.00
61,797.050 LINK
0.4396%
43
FMFW.io
LINK-USDT$11.05
0.0044524 Eth
$658,001.00
59,541.760 LINK
0.4235%
44
HitBTC
LINK-USDT$11.04
0.0044489 Eth
$653,473.00
59,306.700 LINK
0.4219%
45
BloFin
LINK-USDT$11.07
0.0044583 Eth
$635,324.00
57,700.060 LINK
0.4104%
46
tanX
LINK-USDC$11.05
0.0044556 Eth
$481,396.00
43,686.130 LINK
0.3107%
47
LATOKEN
LINK-USDT$11.06
0.0044547 Eth
$460,714.00
41,662.281 LINK
0.2964%
48
Crypto.com Exchange
LINK-USD$11.04
0.0044502 Eth
$459,168.00
41,580.040 LINK
0.2958%
49
FMCPAY
LINK-BTC$11.05
0.0044501 Eth
$430,900.00
38,934.900 LINK
0.2770%
50
Bitvavo
LINK-EUR$11.05
0.0044526 Eth
$430,643.00
38,963.255 LINK
0.2772%
51
WhiteBIT
LINK-BTC$11.05
0.0044511 Eth
$417,642.00
37,811.950 LINK
0.2690%
52
BingX
LINK-USDT$11.04
0.0044494 Eth
$397,585.00
36,067.241 LINK
0.2566%
53
FMCPAY
LINK-ETH$11.05
0.0044516 Eth
$392,933.00
35,325.440 LINK
0.2513%
54
CoinEx
LINK-USDT$11.05
0.0044508 Eth
$354,221.00
32,065.767 LINK
0.2281%
55
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$11.06
0.0044558 Eth
$342,902.00
31,238.639 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2222%
56
Bithumb
LINK-KRW$11.01
0.0044370 Eth
$296,273.00
26,902.253 LINK
0.1914%
57
Bitstamp
LINK-USD$11.04
0.0044487 Eth
$261,032.00
23,644.236 LINK
0.1682%
58
PointPay
LINK-USDT$11.05
0.0044507 Eth
$247,687.00
22,447.862 LINK
0.1597%
59
BigONE
LINK-USDT$11.01
0.0044354 Eth
$219,856.00
19,976.030 LINK
0.1421%
60
LATOKEN
LINK-BTC$11.05
0.0044516 Eth
$219,383.00
19,852.401 LINK
0.1412%
61
EXMO
LINK-USDT$11.05
0.0044517 Eth
$206,420.00
18,681.399 LINK
0.1329%
62
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$11.06
0.0044588 Eth
$204,071.00
18,311.630 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1303%
63
Pionex
LINK-USDT$11.06
0.0044543 Eth
$194,413.00
17,629.370 LINK
0.1254%
64
BitMart
LINK-BTC$11.05
0.0044537 Eth
$183,738.00
16,624.420 LINK
0.1183%
65
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$11.04
0.0044470 Eth
$156,827.00
14,130.191 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1005%
66
Bybit
LINK-USDC$11.04
0.0044484 Eth
$146,806.00
13,317.819 LINK
0.0947%
67
Koinpark
LINK-USDT$11.06
0.0044546 Eth
$144,204.00
13,042.171 LINK
0.0928%
68
Nominex
LINK-USDT$11.05
0.0044509 Eth
$122,442.00
11,083.857 LINK
0.0788%
69
Hotcoin
LINK-ETH$11.05
0.0044518 Eth
$121,670.00
11,011.250 LINK
0.0783%
70
Bitbank
LINK-JPY$11.06
0.0044551 Eth
$116,608.00
10,547.161 LINK
0.0750%
71
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$11.08
0.0044658 Eth
$114,506.00
10,248.407 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0729%
72
Hotcoin
LINK-BTC$11.04
0.0044468 Eth
$102,916.00
9,324.450 LINK
0.0663%
73
Kraken
LINK-EUR$11.04
0.0044497 Eth
$91,089.00
8,249.711 LINK
0.0587%
74
Bit2Me
LINK-EUR$11.06
0.0044559 Eth
$86,104.00
7,830.720 LINK
0.0557%
75
Slex
LINK-BTC$11.06
0.0044542 Eth
$70,426.00
6,362.900 LINK
0.0453%
76
Slex
LINK-ETH$11.06
0.0044574 Eth
$68,992.00
6,204.280 LINK
0.0441%
77
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$11.03
0.0044444 Eth
$64,882.00
5,882.690 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0418%
78
BYDFi
LINK-USDC$11.05
0.0044533 Eth
$55,975.00
5,065.710 LINK
0.0360%
79
Bitget
LINK-EUR$11.02
0.0044421 Eth
$52,369.00
4,757.300 LINK
0.0338%
80
Bitso
LINK-USD$11.07
0.0044626 Eth
$32,391.00
2,925.105 LINK
0.0208%
81
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$11.08
0.0044648 Eth
$31,743.00
31,518.447 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.2242%
82
EXMO
LINK-BTC$11.10
0.0044707 Eth
$27,081.00
2,440.436 LINK
0.0174%
83
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$11.04
0.0044474 Eth
$21,791.00
21,689.743 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.1543%
84
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$11.05
0.0044517 Eth
$18,900.78
1,695.271 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0121%
85
ProBit Global
LINK-USDT$11.08
0.0044641 Eth
$18,506.03
1,669.948 LINK
0.0119%
86
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$11.08
0.0044658 Eth
$18,035.44
1,640.028 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0117%
87
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$11.09
0.0044679 Eth
$15,538.85
1,413.932 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0101%
88
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$11.06
0.0044588 Eth
$13,540.24
13,453.208 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.0957%
89
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$11.05
0.0044530 Eth
$12,258.68
1,111.549 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0079%
90
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$11.05
0.0044532 Eth
$11,585.74
1,056.063 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0075%
91
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$11.07
0.0044593 Eth
$10,499.26
941.212 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0067%
92
Coinone
LINK-KRW$11.03
0.0044438 Eth
$8,374.42
759.394 LINK
0.0054%
93
TokoCrypto
LINK-USDT$11.04
0.0044478 Eth
$3,894.27
352.817 LINK
0.0025%
94
Uniswap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8$11.09
0.0044683 Eth
$3,235.92
292.527 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.0021%
95
CoinEx
LINK-BTC$11.04
0.0044463 Eth
$1,943.53
175.557 LINK
0.0012%
96
CoinEx
LINK-USDC$11.02
0.0044385 Eth
$1,889.48
172.266 LINK
0.0012%
97
Coinzoom
LINK-USD$11.04
0.0044494 Eth
$1,104.10
100.000 LINK
0.0007%
98
PancakeSwap V3 (Arbitrum)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$11.03
0.0044455 Eth
$991.96
89.290 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0006%
99
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F$11.05
0.0044512 Eth
$527.39
47.843 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0003%
100
CEX.IO
LINK-USDT$11.04
0.0044502 Eth
$291.32
26.656 LINK
0.0002%

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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