ETH Price: $3,481.55 (+5.59%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

726,836 ( 0.035%)

Market

Price

$24.83 @ 0.007132 ETH (+6.97%)

Onchain Market Cap

$24,830,000,000.00

Circulating Supply Market Cap

$15,631,225,394.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
250 LINK

Value
$6,207.50 ( ~1.7830 Eth) [0.0000%]
0x85f3e99b0cc20573c18de48263af8daf058a22b1
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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 22472.73% |ETH 0.0003846 1754.39%

Market

Volume (24H):$1,036,109,603.00
Market Capitalization:$15,631,225,394.00
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$24.74
0.0071246 Eth
$128,343,717.00
5,337,860.230 LINK
19.4268%
2
Coinbase Exchange
LINK-USD$24.89
0.0071502 Eth
$71,302,906.00
2,864,260.720 LINK
10.4243%
3
Upbit
LINK-KRW$25.01
0.0071851 Eth
$47,393,938.00
1,894,998.132 LINK
6.8967%
4
Bybit
LINK-USDT$24.93
0.0071609 Eth
$37,899,674.00
1,569,452.275 LINK
5.7119%
5
P2B
LINK-USDT$24.83
0.0071423 Eth
$27,012,881.00
1,087,863.200 LINK
3.9592%
6
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$24.87
0.0071571 Eth
$19,351,447.00
784,860.028 0X514910771AF9CA656AF840DFF83E8264ECF986CA
2.8565%
7
OKX
LINK-USDT$24.91
0.0071559 Eth
$18,311,950.00
760,623.450 LINK
2.7682%
8
DigiFinex
LINK-USDT$24.91
0.0071567 Eth
$16,795,863.00
674,228.300 LINK
2.4538%
9
Gate.io
LINK-USDT$24.90
0.0071525 Eth
$15,862,963.00
660,964.300 LINK
2.4055%
10
HTX
LINK-USDT$24.88
0.0071484 Eth
$15,484,121.00
644,158.874 LINK
2.3444%
11
Binance
LINK-FDUSD$24.84
0.0071465 Eth
$14,760,523.00
613,430.610 LINK
2.2325%
12
FameEX
LINK-USDT$24.80
0.0071387 Eth
$12,818,685.00
533,120.103 LINK
1.9403%
13
MEXC
LINK-USDT$24.90
0.0071585 Eth
$12,750,129.00
511,980.500 LINK
1.8633%
14
Azbit
LINK-USDT$24.80
0.0071334 Eth
$12,721,444.00
529,023.905 LINK
1.9254%
15
XT.COM
LINK-USDT$24.88
0.0071527 Eth
$12,672,099.00
526,860.110 LINK
1.9175%
16
Coinstore
LINK-USDT$24.91
0.0071574 Eth
$11,523,448.00
479,388.340 LINK
1.7447%
17
Hotcoin
LINK-USDT$24.91
0.0071650 Eth
$10,825,467.00
434,552.740 LINK
1.5815%
18
Bitunix
LINK-USDT$24.91
0.0071570 Eth
$10,142,265.00
407,296.480 LINK
1.4823%
19
Binance
LINK-USDC$24.89
0.0071516 Eth
$10,100,748.00
418,653.720 LINK
1.5237%
20
Bithumb
LINK-KRW$25.06
0.0072007 Eth
$9,890,707.00
394,603.989 LINK
1.4361%
21
CoinW
LINK-USDT$24.84
0.0071511 Eth
$9,151,474.00
368,458.070 LINK
1.3410%
22
Kraken
LINK-USD$24.91
0.0071535 Eth
$7,855,169.00
315,398.715 LINK
1.1479%
23
KuCoin
LINK-USDT$24.90
0.0071529 Eth
$7,434,161.00
298,579.929 LINK
1.0867%
24
BYDFi
LINK-USDT$24.89
0.0071494 Eth
$7,425,730.00
298,386.390 LINK
1.0860%
25
BTSE
LINK-USDT$24.85
0.0071510 Eth
$6,637,546.00
267,071.931 LINK
0.9720%
26
LBank
LINK-USDT$24.82
0.0071465 Eth
$6,495,741.00
261,702.230 LINK
0.9525%
27
LATOKEN
LINK-USDT$24.91
0.0071614 Eth
$6,361,556.00
255,345.235 LINK
0.9293%
28
Binance
LINK-BTC$24.91
0.0071566 Eth
$5,924,029.00
240,918.010 LINK
0.8768%
29
Bitvavo
LINK-EUR$24.74
0.0071219 Eth
$5,699,401.00
230,387.094 LINK
0.8385%
30
QMall
LINK-USDT$24.80
0.0071406 Eth
$5,022,975.00
208,496.497 LINK
0.7588%
31
Dex-Trade
LINK-USDT$24.86
0.0071509 Eth
$4,246,038.00
170,790.090 LINK
0.6216%
32
FMCPAY
LINK-USDT$24.81
0.0071410 Eth
$3,719,555.00
154,402.656 LINK
0.5619%
33
Coinbase Exchange
LINK-EUR$24.91
0.0071551 Eth
$3,621,674.00
145,381.910 LINK
0.5291%
34
CoinEx
LINK-USDT$24.84
0.0071459 Eth
$3,305,383.00
136,957.900 LINK
0.4985%
35
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$24.79
0.0071354 Eth
$3,013,231.00
122,552.977 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.4460%
36
Biconomy.com
LINK-USDT$24.92
0.0071622 Eth
$2,493,069.00
103,610.140 LINK
0.3771%
37
PointPay
LINK-USDT$24.89
0.0071496 Eth
$1,972,843.00
81,804.108 LINK
0.2977%
38
AscendEX (BitMax)
LINK-USDT$24.91
0.0071570 Eth
$1,845,546.00
74,081.900 LINK
0.2696%
39
Kraken
LINK-EUR$24.91
0.0071541 Eth
$1,835,491.00
73,692.906 LINK
0.2682%
40
FMCPAY
LINK-ETH$24.80
0.0071369 Eth
$1,793,092.00
72,883.840 LINK
0.2653%
41
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$24.83
0.0071397 Eth
$1,674,848.00
68,082.096 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2478%
42
Coinbase Exchange
LINK-GBP$24.89
0.0071495 Eth
$1,600,982.00
64,317.320 LINK
0.2341%
43
BigONE
LINK-USDT$24.81
0.0071296 Eth
$1,553,204.00
62,604.760 LINK
0.2278%
44
EXMO
LINK-USDT$24.95
0.0071652 Eth
$1,427,547.00
57,223.727 LINK
0.2083%
45
Phemex
LINK-USDT$24.90
0.0071556 Eth
$1,424,193.00
57,193.210 LINK
0.2082%
46
Binance
LINK-TRY$24.67
0.0071007 Eth
$1,236,914.00
51,469.590 LINK
0.1873%
47
itBit
LINK-USD$24.88
0.0071460 Eth
$1,222,400.00
49,131.838 LINK
0.1788%
48
Bitbank
LINK-JPY$24.77
0.0071306 Eth
$1,167,734.00
47,151.249 LINK
0.1716%
49
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.68
0.0070965 Eth
$1,154,590.00
47,203.564 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1718%
50
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$24.77
0.0071304 Eth
$1,113,091.00
73,197.826 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.2664%
51
Binance
LINK-EUR$24.91
0.0071568 Eth
$1,099,507.00
45,508.870 LINK
0.1656%
52
BitStorage
LINK-USDT$24.79
0.0071370 Eth
$1,076,699.00
43,431.400 LINK
0.1581%
53
Binance
LINK-ETH$24.91
0.0071588 Eth
$1,043,183.00
42,343.930 LINK
0.1541%
54
Trubit
LINK-USDT$24.67
0.0071067 Eth
$927,553.00
38,623.120 LINK
0.1406%
55
Coinbase Exchange
LINK-USDT$24.87
0.0071453 Eth
$880,393.00
35,397.476 LINK
0.1288%
56
PancakeSwap V3 (BSC)
0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$24.69
0.0070906 Eth
$876,139.00
36,479.233 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD
0.1328%
57
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.79
0.0071351 Eth
$875,818.00
35,704.860 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1299%
58
Bybit
LINK-USDC$24.89
0.0071516 Eth
$870,858.00
36,080.914 LINK
0.1313%
59
AscendEX (BitMax)
LINK-BTC$24.83
0.0071341 Eth
$859,672.00
34,619.000 LINK
0.1260%
60
Coinbase Exchange
LINK-ETH$24.82
0.0071359 Eth
$831,472.00
33,505.570 LINK
0.1219%
61
EarnBIT
LINK-USDT$24.90
0.0071549 Eth
$818,755.00
33,944.901 LINK
0.1235%
62
Gemini
LINK-USD$24.89
0.0071491 Eth
$807,280.00
32,433.929 LINK
0.1180%
63
QMall
LINK-USDC$24.91
0.0071593 Eth
$784,186.00
32,457.943 LINK
0.1181%
64
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$24.76
0.0071271 Eth
$758,389.00
31,445.802 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.1144%
65
tanX
LINK-USDC$24.79
0.0071286 Eth
$730,011.00
30,584.760 LINK
0.1113%
66
LATOKEN
LINK-BTC$24.73
0.0071209 Eth
$601,729.00
24,327.552 LINK
0.0885%
67
Kraken
LINK-ETH$24.73
0.0071029 Eth
$554,633.00
22,428.115 LINK
0.0816%
68
GMO Japan
LINK-JPY$24.78
0.0071312 Eth
$533,396.00
21,529.400 LINK
0.0784%
69
Coinbase Exchange
LINK-BTC$24.90
0.0071632 Eth
$530,523.00
21,310.180 LINK
0.0776%
70
Quickswap (v3)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$24.84
0.0071511 Eth
$509,460.00
492,203.977 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.7913%
71
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$24.68
0.0070965 Eth
$490,632.00
478,013.108 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.7397%
72
Bitkub
LINK-THB$24.66
0.0070887 Eth
$449,991.00
18,247.258 LINK
0.0664%
73
Coinone
LINK-KRW$25.05
0.0071954 Eth
$435,760.00
17,394.778 LINK
0.0633%
74
OKX
LINK-USDC$24.89
0.0071503 Eth
$386,206.00
16,025.204 LINK
0.0583%
75
Hotcoin
LINK-BTC$24.79
0.0071373 Eth
$381,452.00
15,387.930 LINK
0.0560%
76
HashKey Exchange
LINK-USD$24.85
0.0071395 Eth
$343,198.00
14,220.150 LINK
0.0518%
77
BYDFi
LINK-USDC$24.76
0.0071273 Eth
$313,250.00
12,650.020 LINK
0.0460%
78
Uniswap V3 (Optimism)
0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006$24.73
0.0071063 Eth
$311,856.00
12,776.713 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6
0.0465%
79
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$24.81
0.0071338 Eth
$310,636.00
12,613.923 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0459%
80
BitDelta
LINK-USDT$24.70
0.0070907 Eth
$302,067.00
12,580.000 LINK
0.0458%
81
BitMart
LINK-BTC$24.91
0.0071586 Eth
$285,076.00
11,443.420 LINK
0.0416%
82
Slex
LINK-ETH$24.87
0.0071434 Eth
$277,749.00
11,277.880 LINK
0.0410%
83
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$24.98
0.0071754 Eth
$266,599.00
10,987.201 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0400%
84
BitStorage
LINK-ETH$24.83
0.0071469 Eth
$264,567.00
10,655.240 LINK
0.0388%
85
Binance US
LINK-USDT$24.74
0.0071226 Eth
$255,906.00
10,343.490 LINK
0.0376%
86
bitcastle
LINK-USDT$24.81
0.0071410 Eth
$246,672.00
10,240.300 LINK
0.0373%
87
PointPay
LINK-BTC$24.91
0.0071537 Eth
$226,485.00
9,206.058 LINK
0.0335%
88
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$24.77
0.0071292 Eth
$218,762.00
8,914.634 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0324%
89
Bitso
LINK-USD$24.88
0.0071542 Eth
$190,890.00
7,672.521 LINK
0.0279%
90
Uniswap V2 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$24.80
0.0071227 Eth
$188,243.00
7,658.391 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0279%
91
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$24.80
0.0071371 Eth
$182,421.00
7,608.320 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0277%
92
Binance
LINK-BNB$24.64
0.0070935 Eth
$167,123.00
6,920.450 LINK
0.0252%
93
Kraken
LINK-GBP$24.80
0.0071241 Eth
$163,835.00
6,606.745 LINK
0.0240%
94
KuCoin
LINK-USDC$24.85
0.0071381 Eth
$154,278.00
6,209.128 LINK
0.0226%
95
Solidly V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$24.84
0.0071496 Eth
$139,927.00
5,640.643 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0205%
96
Binance
LINK-BRL$24.47
0.0070294 Eth
$134,689.00
5,675.900 LINK
0.0207%
97
Bitcointry
LINK-USDT$24.77
0.0071298 Eth
$129,276.00
5,371.896 LINK
0.0196%
98
Mercado Bitcoin
LINK-BRL$24.50
0.0070356 Eth
$128,550.00
5,247.890 LINK
0.0191%
99
Foxbit
LINK-BRL$24.62
0.0070716 Eth
$99,388.00
4,147.640 LINK
0.0151%
100
BitMart
LINK-ETH$24.86
0.0071445 Eth
$98,516.00
3,962.380 LINK
0.0144%

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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