ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
721,388 ( -0.006%)
Market
Price
$11.27 @ 0.004668 ETH (+1.87%)
Onchain Market Cap
$11,270,000,000.00
Circulating Supply Market Cap
$7,066,877,646.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
510.931545914943240353 LINKValue
$5,758.20 ( ~2.3851 Eth) [0.0001%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | LBank | LINK-USDT | $11.28 0.0046722 Eth | $27,874,656.00 2,471,355.920 LINK | 20.0496% |
2 | Binance | LINK-USDT | $11.26 0.0046646 Eth | $12,485,201.00 1,110,525.770 LINK | 9.0095% |
3 | Coinbase Exchange | LINK-USD | $11.28 0.0046723 Eth | $10,004,178.00 886,973.860 LINK | 7.1959% |
4 | Bitget | LINK-USDT | $11.25 0.0046613 Eth | $8,828,646.00 785,151.939 LINK | 6.3698% |
5 | HTX | LINK-USDT | $11.25 0.0046602 Eth | $7,427,368.00 660,393.699 LINK | 5.3577% |
6 | Bybit | LINK-USDT | $11.25 0.0046602 Eth | $7,286,012.00 647,262.558 LINK | 5.2511% |
7 | Websea | LINK-USDT | $11.25 0.0046619 Eth | $5,645,463.00 0.000 LINK | 0.0000% |
8 | WhiteBIT | LINK-USDT | $11.26 0.0046628 Eth | $5,612,875.00 498,611.930 LINK | 4.0451% |
9 | Azbit | LINK-USDT | $11.25 0.0046610 Eth | $5,212,115.00 463,495.040 LINK | 3.7602% |
10 | Biconomy.com | LINK-USDT | $11.25 0.0046609 Eth | $4,633,334.00 411,921.120 LINK | 3.3418% |
11 | BVOX | LINK-USDT | $11.28 0.0046745 Eth | $3,146,775.00 279,816.180 LINK | 2.2701% |
12 | WEEX | LINK-USDT | $11.28 0.0046704 Eth | $2,769,506.00 246,124.120 LINK | 1.9968% |
13 | P2B | LINK-USDT | $11.26 0.0046642 Eth | $2,678,354.00 237,881.470 LINK | 1.9299% |
14 | Slex | LINK-USDT | $11.28 0.0046728 Eth | $2,146,046.00 190,876.180 LINK | 1.5485% |
15 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.22 0.0046491 Eth | $2,102,972.00 187,049.547 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.5175% |
16 | OKX | LINK-USDT | $11.26 0.0046649 Eth | $1,963,622.00 174,786.811 LINK | 1.4180% |
17 | AscendEX (BitMax) | LINK-USDT | $11.26 0.0046661 Eth | $1,687,926.00 149,876.800 LINK | 1.2159% |
18 | DigiFinex | LINK-USDT | $11.25 0.0046613 Eth | $1,588,627.00 141,183.700 LINK | 1.1454% |
19 | Trubit | LINK-USDT | $11.28 0.0046743 Eth | $1,452,172.00 128,938.770 LINK | 1.0461% |
20 | Deepcoin | LINK-USDT | $11.26 0.0046648 Eth | $1,397,760.00 128,027.500 LINK | 1.0387% |
21 | Upbit | LINK-KRW | $11.29 0.0046781 Eth | $1,397,352.00 123,737.808 LINK | 1.0039% |
22 | C-Patex | LINK-USDT | $11.27 0.0046684 Eth | $1,298,153.00 115,181.799 LINK | 0.9344% |
23 | KuCoin | LINK-USDT | $11.26 0.0046643 Eth | $1,278,644.00 113,565.263 LINK | 0.9213% |
24 | Oceanex | LINK-USDT | $11.25 0.0046630 Eth | $1,176,190.00 104,507.630 LINK | 0.8479% |
25 | XT.COM | LINK-USDT | $11.28 0.0046723 Eth | $1,104,257.00 98,225.990 LINK | 0.7969% |
26 | Toobit | LINK-USDT | $11.29 0.0046765 Eth | $1,098,252.00 97,701.680 LINK | 0.7926% |
27 | Binance | LINK-BTC | $11.26 0.0046638 Eth | $1,010,184.00 89,977.110 LINK | 0.7300% |
28 | CoinW | LINK-USDT | $11.26 0.0046652 Eth | $988,436.00 87,777.520 LINK | 0.7121% |
29 | Azbit | LINK-ETH | $11.25 0.0046620 Eth | $951,744.00 84,564.634 LINK | 0.6861% |
30 | Crypto.com Exchange | LINK-USDT | $11.28 0.0046745 Eth | $870,765.00 77,173.780 LINK | 0.6261% |
31 | FMCPAY | LINK-USDT | $11.25 0.0046611 Eth | $793,982.00 70,664.464 LINK | 0.5733% |
32 | Gate.io | LINK-USDT | $11.25 0.0046616 Eth | $784,814.00 69,739.720 LINK | 0.5658% |
33 | BloFin | LINK-USDT | $11.27 0.0046681 Eth | $726,283.00 64,590.160 LINK | 0.5240% |
34 | BTSE | LINK-USDT | $11.25 0.0046610 Eth | $706,603.00 62,802.956 LINK | 0.5095% |
35 | BYDFi | LINK-USDT | $11.27 0.0046656 Eth | $596,600.00 52,946.390 LINK | 0.4295% |
36 | FMFW.io | LINK-USDT | $11.25 0.0046611 Eth | $593,085.00 52,714.470 LINK | 0.4277% |
37 | HitBTC | LINK-USDT | $11.25 0.0046615 Eth | $592,567.00 52,714.470 LINK | 0.4277% |
38 | Hotcoin | LINK-USDT | $11.27 0.0046689 Eth | $580,341.00 51,496.460 LINK | 0.4178% |
39 | tanX | LINK-USDC | $11.26 0.0046544 Eth | $566,511.00 50,352.650 LINK | 0.4085% |
40 | Bitvavo | LINK-EUR | $11.28 0.0046712 Eth | $558,613.00 49,543.395 LINK | 0.4019% |
41 | Bitunix | LINK-USDT | $11.29 0.0046745 Eth | $542,637.00 48,106.050 LINK | 0.3903% |
42 | Niza Global | LINK-USDT | $11.25 0.0046615 Eth | $514,991.00 45,536.186 LINK | 0.3694% |
43 | Kraken | LINK-USDT | $11.25 0.0046612 Eth | $512,369.00 45,536.186 LINK | 0.3694% |
44 | Bit2Me | LINK-USDT | $11.25 0.0046609 Eth | $501,581.00 44,625.462 LINK | 0.3620% |
45 | FameEX | LINK-USDT | $11.25 0.0046627 Eth | $496,954.00 44,198.874 LINK | 0.3586% |
46 | Niza Global | LINK-USD | $11.27 0.0046698 Eth | $496,335.00 44,082.765 LINK | 0.3576% |
47 | Kraken | LINK-USD | $11.25 0.0046623 Eth | $496,271.00 44,094.432 LINK | 0.3577% |
48 | FMCPAY | LINK-ETH | $11.26 0.0046631 Eth | $464,707.00 41,330.880 LINK | 0.3353% |
49 | FMCPAY | LINK-BTC | $11.26 0.0046634 Eth | $434,981.00 38,803.900 LINK | 0.3148% |
50 | Coinbase Exchange | LINK-USDT | $11.27 0.0046681 Eth | $382,037.00 33,901.458 LINK | 0.2750% |
51 | CoinEx | LINK-USDT | $11.26 0.0046635 Eth | $369,662.00 32,882.291 LINK | 0.2668% |
52 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.23 0.0046498 Eth | $345,731.00 30,878.441 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2505% |
53 | Crypto.com Exchange | LINK-USD | $11.28 0.0046749 Eth | $339,878.00 30,120.320 LINK | 0.2444% |
54 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.26 0.0046667 Eth | $310,864.00 27,871.674 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2261% |
55 | WhiteBIT | LINK-BTC | $11.26 0.0046625 Eth | $259,401.00 23,045.260 LINK | 0.1870% |
56 | Bitstamp | LINK-EUR | $11.29 0.0046769 Eth | $228,683.00 20,256.229 LINK | 0.1643% |
57 | MEXC | LINK-USDT | $11.25 0.0046608 Eth | $227,990.00 20,267.030 LINK | 0.1644% |
58 | EXMO | LINK-USDT | $11.25 0.0046614 Eth | $209,308.00 18,602.486 LINK | 0.1509% |
59 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.18 0.0046328 Eth | $203,570.00 18,183.437 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1475% |
60 | Pionex | LINK-USDT | $11.26 0.0046648 Eth | $202,097.00 17,975.440 LINK | 0.1458% |
61 | PointPay | LINK-USDT | $11.29 0.0046765 Eth | $196,961.00 17,504.860 LINK | 0.1420% |
62 | BitMart | LINK-BTC | $11.27 0.0046677 Eth | $180,538.00 16,022.700 LINK | 0.1300% |
63 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.24 0.0046565 Eth | $165,807.00 14,803.534 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1201% |
64 | BigONE | LINK-USDT | $11.30 0.0046835 Eth | $155,345.00 13,742.470 LINK | 0.1115% |
65 | Bithumb | LINK-KRW | $11.31 0.0046847 Eth | $139,999.00 12,380.864 LINK | 0.1004% |
66 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.28 0.0046748 Eth | $135,270.00 12,032.638 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0976% |
67 | LATOKEN | LINK-BTC | $11.28 0.0046745 Eth | $129,784.00 11,502.476 LINK | 0.0933% |
68 | Hotcoin | LINK-ETH | $11.26 0.0046630 Eth | $122,890.00 10,918.490 LINK | 0.0886% |
69 | BitDelta | LINK-USDT | $11.26 0.0046642 Eth | $115,592.00 10,290.000 LINK | 0.0835% |
70 | Kraken | LINK-EUR | $11.27 0.0046697 Eth | $112,780.00 10,005.027 LINK | 0.0812% |
71 | Niza Global | LINK-EUR | $11.27 0.0046701 Eth | $112,771.00 10,005.027 LINK | 0.0812% |
72 | Bit2Me | LINK-EUR | $11.27 0.0046698 Eth | $110,409.00 9,804.926 LINK | 0.0795% |
73 | Hotcoin | LINK-BTC | $11.26 0.0046666 Eth | $95,208.00 8,452.410 LINK | 0.0686% |
74 | Coinbase Exchange | LINK-ETH | $11.27 0.0046691 Eth | $84,480.00 7,495.200 LINK | 0.0608% |
75 | Nominex | LINK-USDT | $11.26 0.0046649 Eth | $81,628.00 7,249.811 LINK | 0.0588% |
76 | Slex | LINK-ETH | $11.29 0.0046772 Eth | $74,247.00 6,585.450 LINK | 0.0534% |
77 | Slex | LINK-BTC | $11.29 0.0046770 Eth | $69,451.00 6,190.200 LINK | 0.0502% |
78 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.27 0.0046697 Eth | $51,156.00 4,546.365 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0369% |
79 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.30 0.0046819 Eth | $39,078.00 38,856.350 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.3152% |
80 | GMO Japan | LINK-JPY | $11.29 0.0046774 Eth | $36,228.00 3,209.100 LINK | 0.0260% |
81 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.30 0.0046819 Eth | $25,221.00 2,254.572 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0183% |
82 | EXMO | LINK-BTC | $11.26 0.0046630 Eth | $23,792.00 2,113.811 LINK | 0.0171% |
83 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.30 0.0046814 Eth | $21,209.00 1,877.342 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0152% |
84 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.30 0.0046819 Eth | $19,694.70 1,755.653 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0142% |
85 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.18 0.0046328 Eth | $19,387.45 19,384.856 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1573% |
86 | TokoCrypto | LINK-USDT | $11.25 0.0046598 Eth | $18,567.89 1,650.744 LINK | 0.0134% |
87 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.24 0.0046565 Eth | $18,456.70 18,441.284 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1496% |
88 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.23 0.0046540 Eth | $14,772.18 1,313.519 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0107% |
89 | Nonkyc.io | LINK-BTC | $11.25 0.0046602 Eth | $14,268.26 1,271.685 LINK | 0.0103% |
90 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $11.26 0.0046647 Eth | $11,887.31 1,064.936 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0086% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.27 0.0046668 Eth | $8,270.99 734.812 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0060% |
92 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.30 0.0046820 Eth | $3,976.66 353.807 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0029% |
93 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.24 0.0046545 Eth | $3,331.34 284.635 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0023% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.23 0.0046532 Eth | $2,229.19 198.614 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0016% |
95 | CoinEx | LINK-USDC | $11.25 0.0046598 Eth | $2,154.06 191.465 LINK | 0.0016% |
96 | CoinEx | LINK-BTC | $11.28 0.0046735 Eth | $2,128.75 189.706 LINK | 0.0015% |
97 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.23 0.0046517 Eth | $1,082.99 96.783 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0008% |
98 | Quickswap | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.22 0.0046463 Eth | $789.55 61.922 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0005% |
99 | Uniswap V3 (Arbitrum One) | 0X912CE59144191C1204E64559FE8253A0E49E6548-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.26 0.0046625 Eth | $445.30 799.088 0X912CE59144191C1204E64559FE8253A0E49E6548 | 0.0065% |
100 | CEX.IO | LINK-USDT | $11.26 0.0046638 Eth | $161.06 14.336 LINK | 0.0001% |
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
- Callisto Network - April 14th, 2019 - Security Audit Report
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"transferAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"},{"indexed":false,"name":"data","type":"bytes"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]
Contract Creation Code
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Deployed Bytecode
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Swarm Source
bzzr://c5f438ff94e5ddaf2058efa0019e246c636c37a622e04bb67827c7374acad8d6
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