ETH Price: $2,744.03 (-2.07%)

Token

ChainLink Token (LINK)
 

Overview

Max Total Supply

1,000,000,000 LINK

Holders

738,370 ( 0.034%)

Market

Price

$17.64 @ 0.006428 ETH (-5.01%)

Onchain Market Cap

$17,640,000,000.00

Circulating Supply Market Cap

$11,255,128,605.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 LINK

Value
$0.00
0xbc354bfeae145797e1d59fec8651d52163e8f9dd
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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 15936.36% |ETH 0.0003846 1571.35%

Market

Volume (24H):$826,074,766.00
Market Capitalization:$11,255,128,605.00
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
WhiteBIT
LINK-USDT$17.56
0.0064755 Eth
$91,920,828.00
5,235,845.550 LINK
16.7786%
2
Binance
LINK-USDT$17.66
0.0064434 Eth
$83,299,190.00
4,638,779.240 LINK
14.8653%
3
Bybit
LINK-USDT$17.66
0.0064358 Eth
$61,861,423.00
3,461,581.954 LINK
11.0929%
4
Coinbase Exchange
LINK-USD$17.67
0.0064385 Eth
$30,769,198.00
1,741,225.600 LINK
5.5799%
5
Bitget
LINK-USDT$17.67
0.0064376 Eth
$29,990,332.00
1,676,156.517 LINK
5.3714%
6
HTX
LINK-USDT$17.67
0.0064405 Eth
$20,790,763.00
1,169,059.400 LINK
3.7463%
7
P2B
LINK-USDT$17.69
0.0064440 Eth
$15,024,892.00
849,562.960 LINK
2.7225%
8
Gate.io
LINK-USDT$17.67
0.0064394 Eth
$14,916,007.00
830,849.360 LINK
2.6625%
9
OKX
LINK-USDT$17.69
0.0064450 Eth
$14,214,077.00
798,123.669 LINK
2.5576%
10
Slex
LINK-USDT$17.71
0.0064527 Eth
$11,047,762.00
617,656.690 LINK
1.9793%
11
DigiFinex
LINK-USDT$17.68
0.0064429 Eth
$10,664,271.00
603,130.990 LINK
1.9328%
12
KuCoin
LINK-USDT$17.67
0.0064393 Eth
$8,746,196.00
494,950.587 LINK
1.5861%
13
XT.COM
LINK-USDT$17.66
0.0064434 Eth
$8,191,623.00
456,416.410 LINK
1.4626%
14
MEXC
LINK-EUR$17.65
0.0064998 Eth
$7,950,376.00
450,323.830 LINK
1.4431%
15
MEXC
LINK-USDC$17.72
0.0064897 Eth
$7,693,274.00
434,195.810 LINK
1.3914%
16
Hotcoin
LINK-USDT$17.68
0.0064413 Eth
$7,206,965.00
407,719.850 LINK
1.3066%
17
LBank
LINK-USDT$17.67
0.0064376 Eth
$7,155,569.00
405,048.700 LINK
1.2980%
18
Coinstore
LINK-USDT$17.65
0.0064414 Eth
$7,025,490.00
391,823.560 LINK
1.2556%
19
Binance
LINK-FDUSD$17.67
0.0064396 Eth
$6,911,579.00
384,541.140 LINK
1.2323%
20
Kraken
LINK-USD$17.68
0.0064411 Eth
$6,660,220.00
376,800.306 LINK
1.2075%
21
Binance
LINK-USDC$17.67
0.0064957 Eth
$6,653,107.00
370,277.160 LINK
1.1866%
22
CoinW
LINK-USDT$17.70
0.0064537 Eth
$6,022,164.00
340,280.790 LINK
1.0905%
23
Bitunix
LINK-USDT$17.68
0.0064436 Eth
$5,790,852.00
327,431.180 LINK
1.0493%
24
Azbit
LINK-USDT$17.68
0.0064464 Eth
$4,960,529.00
276,215.120 LINK
0.8851%
25
BYDFi
LINK-USDT$17.66
0.0064334 Eth
$4,579,792.00
259,383.620 LINK
0.8312%
26
BTSE
LINK-USDT$17.68
0.0064479 Eth
$3,919,133.00
221,708.465 LINK
0.7105%
27
LATOKEN
LINK-USDT$17.69
0.0064453 Eth
$3,819,711.00
215,982.033 LINK
0.6921%
28
QMall
LINK-USDT$17.65
0.0064420 Eth
$3,390,900.00
189,078.635 LINK
0.6059%
29
CoinEx
LINK-USDT$17.67
0.0064375 Eth
$2,899,434.00
164,591.326 LINK
0.5274%
30
Bitvavo
LINK-EUR$17.72
0.0064549 Eth
$2,593,086.00
146,374.171 LINK
0.4691%
31
Dex-Trade
LINK-USDT$17.70
0.0064486 Eth
$2,509,607.00
141,815.647 LINK
0.4545%
32
FMCPAY
LINK-USDT$17.65
0.0064361 Eth
$2,424,988.00
135,049.779 LINK
0.4328%
33
Biconomy.com
LINK-USDT$17.67
0.0064460 Eth
$1,957,350.00
110,083.130 LINK
0.3528%
34
Coinbase Exchange
LINK-EUR$17.68
0.0064419 Eth
$1,704,379.00
96,424.910 LINK
0.3090%
35
Coinbase Exchange
LINK-GBP$17.68
0.0064445 Eth
$1,661,662.00
93,971.010 LINK
0.3011%
36
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.67
0.0064381 Eth
$1,623,015.00
89,619.578 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.2872%
37
PointPay
LINK-USDT$17.69
0.0064453 Eth
$1,331,392.00
74,187.060 LINK
0.2377%
38
Bybit
LINK-USDC$17.67
0.0064382 Eth
$1,283,099.00
73,342.790 LINK
0.2350%
39
Camelot V3
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$17.66
0.0064340 Eth
$1,259,627.00
69,450.716 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.2226%
40
Quickswap (v3)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.69
0.0064477 Eth
$1,211,433.00
66,373.052 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.2127%
41
FMCPAY
LINK-ETH$17.68
0.0064418 Eth
$1,121,675.00
62,016.640 LINK
0.1987%
42
Binance
LINK-ETH$17.69
0.0064467 Eth
$1,058,638.00
58,447.610 LINK
0.1873%
43
FMCPAY
LINK-BTC$17.68
0.0064407 Eth
$998,115.00
56,127.800 LINK
0.1799%
44
BigONE
LINK-USDT$17.73
0.0064613 Eth
$933,894.00
52,669.660 LINK
0.1688%
45
Trubit
LINK-USDT$17.69
0.0064484 Eth
$860,817.00
48,302.580 LINK
0.1548%
46
Phemex
LINK-USDT$17.72
0.0064551 Eth
$839,960.00
47,411.930 LINK
0.1519%
47
WhiteBIT
LINK-BTC$17.71
0.0064521 Eth
$790,108.00
44,619.110 LINK
0.1430%
48
EXMO
LINK-USDT$17.68
0.0064416 Eth
$773,705.00
43,768.590 LINK
0.1403%
49
Gemini
LINK-USD$17.69
0.0064467 Eth
$745,482.00
42,136.959 LINK
0.1350%
50
LATOKEN
LINK-BTC$17.64
0.0064295 Eth
$712,106.00
40,364.153 LINK
0.1293%
51
EarnBIT
LINK-USDT$17.70
0.0064503 Eth
$692,754.00
38,855.481 LINK
0.1245%
52
Tokpie
LINK-USDT$17.64
0.0064256 Eth
$677,991.00
38,444.794 LINK
0.1232%
53
BitStorage
LINK-USDT$17.68
0.0064412 Eth
$664,734.00
37,606.690 LINK
0.1205%
54
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$17.69
0.0064453 Eth
$638,178.00
36,150.991 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1158%
55
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$17.63
0.0064240 Eth
$618,204.00
34,404.326 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.1103%
56
tanX
LINK-USDC$17.65
0.0064426 Eth
$599,279.00
33,412.920 LINK
0.1071%
57
Binance
LINK-TRY$17.75
0.0064692 Eth
$583,412.00
32,404.840 LINK
0.1038%
58
Bitbank
LINK-JPY$17.67
0.0064381 Eth
$535,404.00
30,308.163 LINK
0.0971%
59
QMall
LINK-USDC$17.67
0.0064475 Eth
$524,821.00
29,260.998 LINK
0.0938%
60
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.63
0.0064240 Eth
$500,323.00
27,649.312 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0886%
61
Uniswap V3 (Ethereum)
0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA$17.67
0.0064381 Eth
$494,602.00
55,673.159 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984
0.1784%
62
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.63
0.0064240 Eth
$481,814.00
496,503.519 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
1.5911%
63
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$17.68
0.0064451 Eth
$428,855.00
24,032.053 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0770%
64
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$17.67
0.0064369 Eth
$362,052.00
375,613.586 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
1.2037%
65
BitMart
LINK-BTC$17.69
0.0064446 Eth
$298,898.00
16,900.940 LINK
0.0542%
66
XT.COM
LINK-ETH$17.65
0.0064409 Eth
$295,681.00
16,356.210 LINK
0.0524%
67
itBit
LINK-USD$17.62
0.0064300 Eth
$273,054.00
15,496.824 LINK
0.0497%
68
Mercado Bitcoin
LINK-BRL$17.77
0.0064738 Eth
$268,714.00
15,123.514 LINK
0.0485%
69
Slex
LINK-ETH$17.64
0.0064387 Eth
$257,947.00
14,320.820 LINK
0.0459%
70
Hotcoin
LINK-BTC$17.70
0.0064546 Eth
$253,745.00
14,335.750 LINK
0.0459%
71
GMO Japan
LINK-JPY$17.60
0.0064115 Eth
$237,793.00
13,513.700 LINK
0.0433%
72
BitDelta
LINK-USDT$17.69
0.0064453 Eth
$224,885.00
12,566.000 LINK
0.0403%
73
BYDFi
LINK-USDC$17.60
0.0064687 Eth
$223,837.00
12,717.530 LINK
0.0408%
74
Uniswap V3 (Ethereum)
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.67
0.0064381 Eth
$213,778.00
11,929.920 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0382%
75
Uniswap V3 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.67
0.0064402 Eth
$213,297.00
11,768.120 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0377%
76
Coinbase Exchange
LINK-BTC$17.68
0.0064419 Eth
$209,105.00
11,828.690 LINK
0.0379%
77
OKX
LINK-USDC$17.67
0.0064405 Eth
$209,056.00
11,732.560 LINK
0.0376%
78
HashKey Exchange
LINK-USD$17.58
0.0064797 Eth
$209,031.00
11,533.334 LINK
0.0370%
79
Bitkub
LINK-THB$17.62
0.0064211 Eth
$206,004.00
11,689.766 LINK
0.0375%
80
WhiteBIT
LINK-TRY$17.71
0.0064644 Eth
$186,431.00
10,524.190 LINK
0.0337%
81
KuCoin
LINK-USDC$17.70
0.0064508 Eth
$181,798.00
10,269.805 LINK
0.0329%
82
Bitci TR
LINK-TRY$17.84
0.0065021 Eth
$171,679.00
9,597.898 LINK
0.0308%
83
bitcastle
LINK-USDT$17.65
0.0064398 Eth
$167,580.00
9,364.220 LINK
0.0300%
84
WhiteBIT
LINK-EUR$17.62
0.0064203 Eth
$154,833.00
8,789.270 LINK
0.0282%
85
Bitbegin
LINK-USDT$17.66
0.0064364 Eth
$154,641.00
8,671.912 LINK
0.0278%
86
DeGate
0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$17.70
0.0064514 Eth
$132,047.00
7,325.766 0X514910771AF9CA656AF840DFF83E8264ECF986CA
0.0235%
87
Foxbit
LINK-BRL$17.77
0.0064738 Eth
$125,356.00
6,984.271 LINK
0.0224%
88
CoinTR
LINK-TRY$17.74
0.0064773 Eth
$123,952.00
6,950.320 LINK
0.0223%
89
Bitso
LINK-USD$17.65
0.0064309 Eth
$110,592.00
6,265.850 LINK
0.0201%
90
Binance US
LINK-USDT$17.63
0.0064228 Eth
$106,829.00
6,060.754 LINK
0.0194%
91
KuCoin
LINK-BTC$17.70
0.0064485 Eth
$106,263.00
6,004.968 LINK
0.0192%
92
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4$17.67
0.0064373 Eth
$103,640.00
105,747.114 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
0.3389%
93
Uniswap V4 (Polygon)
0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$17.67
0.0064381 Eth
$101,356.00
5,590.408 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39
0.0179%
94
BitMart
LINK-ETH$17.67
0.0064385 Eth
$99,315.00
5,621.000 LINK
0.0180%
95
Uniswap V4 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39$17.67
0.0064381 Eth
$95,969.00
99,085.774 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
0.3175%
96
Uniswap V3 (Arbitrum One)
0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F$17.67
0.0064373 Eth
$90,330.00
5,086.331 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4
0.0163%
97
HTX
LINK-BTC$17.63
0.0064242 Eth
$83,076.00
4,720.260 LINK
0.0151%
98
Hotcoin
LINK-ETH$17.63
0.0064338 Eth
$73,467.00
4,166.420 LINK
0.0134%
99
Bitstamp
LINK-GBP$17.66
0.0064342 Eth
$62,504.00
3,539.832 LINK
0.0113%
100
Dex-Trade
LINK-ETH$17.66
0.0064498 Eth
$29,742.00
1,684.470 LINK
0.0054%

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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