ETH Price: $3,273.66 (+5.23%)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

732,007 ( -0.037%)

Market

Price

$24.86 @ 0.007594 ETH (+8.26%)

Onchain Market Cap

$24,860,000,000.00

Circulating Supply Market Cap

$15,854,222,293.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0x7d6820b9da45236fa266d763ff4a13bd72e41d2d
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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 22500% |ETH 0.0003846 1874.52%

Market

Volume (24H):$1,077,613,475.00
Market Capitalization:$15,854,222,293.00
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$24.89
0.0076250 Eth
$145,025,433.00
6,020,531.670 LINK
22.1295%
2
Coinbase Exchange
LINK-USD$24.91
0.0076257 Eth
$74,925,866.00
3,008,225.230 LINK
11.0572%
3
Bybit
LINK-USDT$24.94
0.0076212 Eth
$52,160,909.00
2,169,740.220 LINK
7.9753%
4
P2B
LINK-USDT$24.89
0.0076121 Eth
$25,924,281.00
1,041,402.600 LINK
3.8279%
5
Gate.io
LINK-USDT$24.91
0.0076164 Eth
$21,371,625.00
885,629.280 LINK
3.2553%
6
MEXC
LINK-USDT$24.90
0.0076170 Eth
$19,430,404.00
780,329.650 LINK
2.8682%
7
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$24.82
0.0075966 Eth
$18,938,937.00
764,719.670 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.8109%
8
OKX
LINK-USDT$24.91
0.0076183 Eth
$18,913,904.00
783,911.661 LINK
2.8814%
9
DigiFinex
LINK-USDT$24.94
0.0076212 Eth
$18,827,004.00
754,819.100 LINK
2.7745%
10
HTX
LINK-USDT$24.90
0.0076148 Eth
$15,676,438.00
647,941.956 LINK
2.3816%
11
XT.COM
LINK-USDT$24.95
0.0076244 Eth
$14,480,787.00
600,558.890 LINK
2.2075%
12
Azbit
LINK-USDT$24.85
0.0076071 Eth
$14,054,785.00
583,395.999 LINK
2.1444%
13
Binance
LINK-USDC$24.82
0.0076029 Eth
$12,479,096.00
517,605.890 LINK
1.9025%
14
Coinstore
LINK-USDT$24.83
0.0076064 Eth
$12,260,696.00
508,270.500 LINK
1.8682%
15
Binance
LINK-FDUSD$24.88
0.0076201 Eth
$12,236,603.00
507,627.910 LINK
1.8659%
16
Bitunix
LINK-USDT$24.87
0.0076148 Eth
$11,525,664.00
463,511.450 LINK
1.7037%
17
KuCoin
LINK-USDT$24.91
0.0076206 Eth
$10,867,413.00
436,187.307 LINK
1.6033%
18
CoinW
LINK-USDT$24.91
0.0076206 Eth
$9,936,415.00
398,881.670 LINK
1.4662%
19
Kraken
LINK-USD$24.90
0.0076148 Eth
$8,784,269.00
352,845.106 LINK
1.2969%
20
BYDFi
LINK-USDT$24.86
0.0076115 Eth
$8,390,871.00
337,515.490 LINK
1.2406%
21
Coinbase Exchange
LINK-EUR$24.93
0.0076245 Eth
$7,426,992.00
297,866.150 LINK
1.0949%
22
LBank
LINK-USDT$24.93
0.0076284 Eth
$7,293,349.00
292,589.990 LINK
1.0755%
23
Hotcoin
LINK-USDT$24.83
0.0076066 Eth
$7,179,610.00
289,138.280 LINK
1.0628%
24
LATOKEN
LINK-USDT$24.86
0.0076227 Eth
$7,145,856.00
287,390.502 LINK
1.0564%
25
BTSE
LINK-USDT$24.84
0.0076079 Eth
$7,078,395.00
284,981.184 LINK
1.0475%
26
QMall
LINK-USDT$24.84
0.0076091 Eth
$6,076,497.00
252,209.998 LINK
0.9270%
27
Bitvavo
LINK-EUR$24.85
0.0076057 Eth
$5,013,804.00
201,740.669 LINK
0.7415%
28
Dex-Trade
LINK-USDT$24.93
0.0076244 Eth
$4,439,216.00
178,041.321 LINK
0.6544%
29
FMCPAY
LINK-USDT$24.90
0.0076162 Eth
$3,897,765.00
161,155.016 LINK
0.5924%
30
CoinEx
LINK-USDT$24.88
0.0076108 Eth
$2,619,670.00
108,734.531 LINK
0.3997%
31
Biconomy.com
LINK-USDT$24.88
0.0076213 Eth
$2,540,522.00
105,211.690 LINK
0.3867%
32
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$24.90
0.0076226 Eth
$2,328,400.00
94,510.269 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.3474%
33
PointPay
LINK-USDT$24.84
0.0076084 Eth
$2,319,361.00
96,393.286 LINK
0.3543%
34
Coinbase Exchange
LINK-GBP$24.91
0.0076181 Eth
$2,314,864.00
92,916.940 LINK
0.3415%
35
WhiteBIT
LINK-TRY$24.86
0.0076132 Eth
$2,158,065.00
86,824.940 LINK
0.3191%
36
Phemex
LINK-USDT$24.91
0.0076182 Eth
$2,110,098.00
84,696.570 LINK
0.3113%
37
FMCPAY
LINK-ETH$24.84
0.0076073 Eth
$1,818,274.00
73,275.680 LINK
0.2693%
38
FMCPAY
LINK-BTC$24.89
0.0076129 Eth
$1,511,733.00
62,127.300 LINK
0.2284%
39
Kraken
LINK-EUR$24.92
0.0076226 Eth
$1,455,328.00
58,397.506 LINK
0.2147%
40
EXMO
LINK-USDT$24.92
0.0076216 Eth
$1,334,054.00
53,523.764 LINK
0.1967%
41
Binance
LINK-TRY$24.87
0.0076123 Eth
$1,271,379.00
52,960.520 LINK
0.1947%
42
Bitbank
LINK-JPY$24.91
0.0076174 Eth
$1,218,540.00
48,916.044 LINK
0.1798%
43
WhiteBIT
LINK-BTC$24.85
0.0075997 Eth
$1,199,372.00
48,258.820 LINK
0.1774%
44
tanX
LINK-USDC$24.85
0.0076117 Eth
$1,162,141.00
47,822.700 LINK
0.1758%
45
BigONE
LINK-USDT$24.88
0.0076190 Eth
$1,145,621.00
46,037.910 LINK
0.1692%
46
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$24.84
0.0076046 Eth
$1,124,900.00
46,245.849 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1700%
47
Tokpie
LINK-USDT$24.87
0.0076183 Eth
$1,124,116.00
45,201.203 LINK
0.1661%
48
BitStorage
LINK-USDT$24.83
0.0076103 Eth
$1,114,725.00
44,890.180 LINK
0.1650%
49
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.80
0.0075924 Eth
$1,110,436.00
44,886.846 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1650%
50
Gemini
LINK-USD$24.84
0.0075899 Eth
$1,060,357.00
42,687.300 LINK
0.1569%
51
WhiteBIT
LINK-EUR$24.88
0.0076167 Eth
$1,038,296.00
41,737.710 LINK
0.1534%
52
QMall
LINK-USDC$24.82
0.0076036 Eth
$962,927.00
39,912.138 LINK
0.1467%
53
OKX
LINK-USDC$24.84
0.0075965 Eth
$907,292.00
37,883.364 LINK
0.1392%
54
EarnBIT
LINK-USDT$24.84
0.0076103 Eth
$896,938.00
37,193.600 LINK
0.1367%
55
Coinbase Exchange
LINK-USDT$24.84
0.0076054 Eth
$879,270.00
35,396.331 LINK
0.1301%
56
Trubit
LINK-USDT$24.85
0.0076157 Eth
$862,025.00
35,690.590 LINK
0.1312%
57
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$24.86
0.0076098 Eth
$859,780.00
34,592.136 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1271%
58
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$24.90
0.0076226 Eth
$845,983.00
35,485.330 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1304%
59
Binance
LINK-EUR$24.82
0.0076020 Eth
$844,295.00
35,311.520 LINK
0.1298%
60
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$24.83
0.0075941 Eth
$822,194.00
66,906.196 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2459%
61
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.95
0.0076384 Eth
$801,756.00
32,264.915 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1186%
62
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$24.80
0.0075924 Eth
$796,232.00
767,899.665 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
2.8225%
63
ProBit Global
LINK-USDT$24.87
0.0076158 Eth
$698,829.00
28,093.958 LINK
0.1033%
64
Bybit
LINK-USDC$24.89
0.0076051 Eth
$682,214.00
28,394.874 LINK
0.1044%
65
itBit
LINK-USD$24.80
0.0075971 Eth
$660,034.00
26,614.271 LINK
0.0978%
66
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.88
0.0076161 Eth
$629,293.00
25,377.433 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0933%
67
BitDelta
LINK-USDT$24.91
0.0076223 Eth
$547,837.00
22,569.000 LINK
0.0830%
68
LATOKEN
LINK-BTC$24.87
0.0076160 Eth
$540,903.00
21,745.019 LINK
0.0799%
69
Coinbase Exchange
LINK-ETH$24.88
0.0076102 Eth
$528,206.00
21,229.760 LINK
0.0780%
70
Coinbase Exchange
LINK-BTC$24.87
0.0076144 Eth
$504,302.00
20,278.210 LINK
0.0745%
71
ProBit Global
LINK-BTC$24.88
0.0076143 Eth
$499,627.00
20,084.453 LINK
0.0738%
72
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$24.80
0.0075924 Eth
$477,167.00
20,027.746 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0736%
73
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$24.97
0.0076453 Eth
$438,755.00
17,845.301 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0656%
74
HashKey Exchange
LINK-USD$24.83
0.0076018 Eth
$418,836.00
17,225.677 LINK
0.0633%
75
GMO Japan
LINK-JPY$24.88
0.0076188 Eth
$333,421.00
13,400.900 LINK
0.0493%
76
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$24.91
0.0076244 Eth
$308,076.00
12,719.291 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0468%
77
bitcastle
LINK-USDT$24.91
0.0076192 Eth
$287,840.00
11,938.270 LINK
0.0439%
78
BitMart
LINK-BTC$24.88
0.0076113 Eth
$282,668.00
11,359.440 LINK
0.0418%
79
Hotcoin
LINK-BTC$24.90
0.0076200 Eth
$282,400.00
11,341.570 LINK
0.0417%
80
Slex
LINK-ETH$24.86
0.0076145 Eth
$274,482.00
11,035.360 LINK
0.0406%
81
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$24.89
0.0076096 Eth
$272,676.00
11,432.901 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0420%
82
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$24.82
0.0075924 Eth
$272,617.00
10,989.073 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0404%
83
Bitso
LINK-USD$24.88
0.0076186 Eth
$266,824.00
10,723.198 LINK
0.0394%
84
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$24.85
0.0076069 Eth
$249,364.00
10,358.447 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0381%
85
Bitci TR
LINK-TRY$24.98
0.0076420 Eth
$231,707.00
9,548.133 LINK
0.0351%
86
BYDFi
LINK-USDC$24.88
0.0076068 Eth
$220,657.00
8,870.230 LINK
0.0326%
87
PointPay
LINK-BTC$24.84
0.0076068 Eth
$212,480.00
8,789.644 LINK
0.0323%
88
BitStorage
LINK-ETH$24.89
0.0076213 Eth
$210,252.00
8,447.750 LINK
0.0311%
89
KuCoin
LINK-BTC$24.89
0.0076145 Eth
$209,279.00
8,406.572 LINK
0.0309%
90
Kraken
LINK-GBP$24.83
0.0075951 Eth
$206,979.00
8,335.467 LINK
0.0306%
91
Bitkub
LINK-THB$24.85
0.0076008 Eth
$203,603.00
8,194.653 LINK
0.0301%
92
Foxbit
LINK-BRL$24.87
0.0076153 Eth
$203,275.00
8,690.071 LINK
0.0319%
93
KuCoin
LINK-USDC$24.81
0.0075901 Eth
$200,302.00
8,071.937 LINK
0.0297%
94
Mercado Bitcoin
LINK-BRL$24.95
0.0076331 Eth
$193,399.00
7,751.001 LINK
0.0285%
95
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$24.90
0.0076226 Eth
$184,812.00
175,980.712 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.6468%
96
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$24.94
0.0076374 Eth
$155,323.00
148,051.956 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.5442%
97
CoinTR
LINK-TRY$24.85
0.0076119 Eth
$144,951.00
6,004.080 LINK
0.0221%
98
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$24.87
0.0076153 Eth
$110,995.00
4,607.416 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0169%
99
Binance US
LINK-USDT$24.83
0.0075938 Eth
$99,097.00
3,990.447 LINK
0.0147%
100
BitMart
LINK-ETH$24.85
0.0076014 Eth
$95,139.00
3,828.240 LINK
0.0141%

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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