ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
732,503 ( 0.034%)
Market
Price
$25.10 @ 0.007579 ETH (+1.04%)
Onchain Market Cap
$25,100,000,000.00
Circulating Supply Market Cap
$16,080,419,696.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $24.99 0.0075444 Eth | $125,620,219.00 4,970,635.860 LINK | 23.0016% |
2 | Coinbase Exchange | LINK-USD | $25.03 0.0075474 Eth | $50,911,075.00 2,034,246.020 LINK | 9.4135% |
3 | Bybit | LINK-USDT | $25.01 0.0075487 Eth | $41,216,648.00 1,632,564.780 LINK | 7.5547% |
4 | P2B | LINK-USDT | $25.08 0.0075691 Eth | $25,879,815.00 1,031,888.860 LINK | 4.7751% |
5 | OKX | LINK-USDT | $24.99 0.0075423 Eth | $20,421,265.00 805,330.770 LINK | 3.7267% |
6 | Gate.io | LINK-USDT | $24.96 0.0075344 Eth | $17,385,627.00 688,638.240 LINK | 3.1867% |
7 | DigiFinex | LINK-USDT | $25.01 0.0075485 Eth | $16,173,734.00 646,738.330 LINK | 2.9928% |
8 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $25.22 0.0076115 Eth | $15,923,378.00 627,212.242 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.9024% |
9 | MEXC | LINK-USDT | $24.95 0.0075295 Eth | $13,522,467.00 541,916.780 LINK | 2.5077% |
10 | XT.COM | LINK-USDT | $24.94 0.0075273 Eth | $12,486,090.00 493,471.930 LINK | 2.2835% |
11 | Azbit | LINK-USDT | $24.94 0.0075256 Eth | $12,234,063.00 484,056.900 LINK | 2.2400% |
12 | HTX | LINK-USDT | $24.96 0.0075368 Eth | $12,096,647.00 484,098.641 LINK | 2.2402% |
13 | Coinstore | LINK-USDT | $25.05 0.0075544 Eth | $10,667,050.00 422,195.060 LINK | 1.9537% |
14 | Bitunix | LINK-USDT | $24.95 0.0075288 Eth | $9,691,626.00 388,564.240 LINK | 1.7981% |
15 | Binance | LINK-USDC | $24.95 0.0075291 Eth | $8,877,545.00 351,630.550 LINK | 1.6272% |
16 | CoinW | LINK-USDT | $25.02 0.0075482 Eth | $8,071,998.00 322,570.980 LINK | 1.4927% |
17 | KuCoin | LINK-USDT | $24.96 0.0075340 Eth | $8,039,071.00 322,134.600 LINK | 1.4907% |
18 | Binance | LINK-FDUSD | $24.83 0.0074621 Eth | $8,035,904.00 320,983.330 LINK | 1.4853% |
19 | BYDFi | LINK-USDT | $25.10 0.0075727 Eth | $6,918,237.00 275,614.450 LINK | 1.2754% |
20 | LATOKEN | LINK-USDT | $24.95 0.0075324 Eth | $6,187,778.00 247,960.487 LINK | 1.1474% |
21 | LBank | LINK-USDT | $25.01 0.0075467 Eth | $6,061,691.00 242,371.760 LINK | 1.1216% |
22 | Kraken | LINK-USD | $25.03 0.0075553 Eth | $5,741,467.00 229,376.717 LINK | 1.0614% |
23 | BTSE | LINK-USDT | $25.04 0.0075456 Eth | $5,727,232.00 228,724.754 LINK | 1.0584% |
24 | QMall | LINK-USDT | $24.99 0.0075414 Eth | $5,074,275.00 200,680.533 LINK | 0.9286% |
25 | Hotcoin | LINK-USDT | $25.05 0.0075484 Eth | $4,867,863.00 194,330.916 LINK | 0.8993% |
26 | Bitvavo | LINK-EUR | $24.93 0.0075233 Eth | $4,780,949.00 191,782.008 LINK | 0.8875% |
27 | WhiteBIT | LINK-USDT | $25.10 0.0075701 Eth | $4,539,077.00 180,844.870 LINK | 0.8369% |
28 | FMCPAY | LINK-USDT | $25.01 0.0075486 Eth | $3,887,453.00 154,848.038 LINK | 0.7166% |
29 | Dex-Trade | LINK-USDT | $25.02 0.0075438 Eth | $3,843,538.00 153,617.160 LINK | 0.7109% |
30 | Coinbase Exchange | LINK-EUR | $25.04 0.0075540 Eth | $3,807,116.00 152,047.530 LINK | 0.7036% |
31 | CoinEx | LINK-USDT | $24.95 0.0075162 Eth | $2,989,196.00 118,056.753 LINK | 0.5463% |
32 | Biconomy.com | LINK-USDT | $25.02 0.0075523 Eth | $2,507,077.00 99,669.070 LINK | 0.4612% |
33 | PointPay | LINK-USDT | $24.97 0.0075335 Eth | $2,024,330.00 79,923.997 LINK | 0.3698% |
34 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.88 0.0075098 Eth | $1,860,059.00 73,982.971 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.3424% |
35 | FMCPAY | LINK-ETH | $24.98 0.0075389 Eth | $1,783,374.00 70,799.040 LINK | 0.3276% |
36 | Coinbase Exchange | LINK-GBP | $25.02 0.0075478 Eth | $1,675,186.00 66,958.220 LINK | 0.3098% |
37 | FMCPAY | LINK-BTC | $24.99 0.0075430 Eth | $1,642,999.00 66,440.100 LINK | 0.3075% |
38 | Phemex | LINK-USDT | $25.03 0.0075528 Eth | $1,391,791.00 55,596.950 LINK | 0.2573% |
39 | EXMO | LINK-USDT | $25.00 0.0075476 Eth | $1,336,323.00 53,452.166 LINK | 0.2473% |
40 | Binance | LINK-TRY | $24.96 0.0075328 Eth | $1,267,685.00 50,197.380 LINK | 0.2323% |
41 | tanX | LINK-USDC | $25.03 0.0075550 Eth | $1,251,306.00 49,930.690 LINK | 0.2311% |
42 | Bybit | LINK-USDC | $25.02 0.0075535 Eth | $1,146,866.00 45,215.173 LINK | 0.2092% |
43 | Kraken | LINK-USDT | $25.01 0.0075496 Eth | $1,035,069.00 41,383.399 LINK | 0.1915% |
44 | BitStorage | LINK-USDT | $24.94 0.0075153 Eth | $990,759.00 39,726.810 LINK | 0.1838% |
45 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $24.96 0.0075294 Eth | $955,993.00 38,008.077 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1759% |
46 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.18 0.0075954 Eth | $939,117.00 37,038.933 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1714% |
47 | EarnBIT | LINK-USDT | $25.15 0.0075270 Eth | $912,455.00 35,987.705 LINK | 0.1665% |
48 | Trubit | LINK-USDT | $24.94 0.0075248 Eth | $867,470.00 34,696.150 LINK | 0.1606% |
49 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $25.21 0.0076080 Eth | $856,239.00 70,083.313 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.3243% |
50 | Bitbank | LINK-JPY | $25.14 0.0075785 Eth | $852,493.00 33,916.012 LINK | 0.1569% |
51 | Coinbase Exchange | LINK-USDT | $25.08 0.0075667 Eth | $813,798.00 32,446.628 LINK | 0.1501% |
52 | Binance | LINK-EUR | $24.95 0.0075273 Eth | $803,134.00 31,778.420 LINK | 0.1471% |
53 | Gemini | LINK-USD | $24.98 0.0075385 Eth | $748,941.00 29,987.489 LINK | 0.1388% |
54 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $25.24 0.0076139 Eth | $747,813.00 29,414.476 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1361% |
55 | itBit | LINK-USD | $25.00 0.0075475 Eth | $723,352.00 28,934.066 LINK | 0.1339% |
56 | WhiteBIT | LINK-TRY | $25.04 0.0075514 Eth | $720,007.00 28,753.760 LINK | 0.1331% |
57 | QMall | LINK-USDC | $24.95 0.0075276 Eth | $718,363.00 28,449.396 LINK | 0.1316% |
58 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.04 0.0075548 Eth | $715,005.00 28,140.816 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1302% |
59 | BigONE | LINK-USDT | $24.96 0.0075303 Eth | $709,584.00 28,423.420 LINK | 0.1315% |
60 | OKX | LINK-USDC | $25.01 0.0075502 Eth | $705,870.00 27,902.590 LINK | 0.1291% |
61 | HashKey Exchange | LINK-USD | $24.94 0.0075250 Eth | $637,449.00 25,416.180 LINK | 0.1176% |
62 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $25.17 0.0075933 Eth | $634,328.00 25,461.704 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1178% |
63 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $24.88 0.0075090 Eth | $587,533.00 23,410.485 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1083% |
64 | LATOKEN | LINK-BTC | $24.99 0.0075424 Eth | $553,881.00 22,165.881 LINK | 0.1026% |
65 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $25.18 0.0075954 Eth | $537,985.00 539,106.668 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.4947% |
66 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $25.22 0.0076099 Eth | $470,311.00 18,478.474 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0855% |
67 | BitDelta | LINK-USDT | $25.01 0.0075451 Eth | $458,030.00 18,166.000 LINK | 0.0841% |
68 | Coinbase Exchange | LINK-ETH | $25.00 0.0075470 Eth | $421,510.00 16,858.270 LINK | 0.0780% |
69 | Coinbase Exchange | LINK-BTC | $25.04 0.0075533 Eth | $407,432.00 16,270.660 LINK | 0.0753% |
70 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $24.95 0.0075260 Eth | $368,779.00 14,673.635 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0679% |
71 | Kraken | LINK-GBP | $25.02 0.0075507 Eth | $365,720.00 14,619.701 LINK | 0.0677% |
72 | WhiteBIT | LINK-BTC | $25.04 0.0075533 Eth | $346,229.00 13,825.040 LINK | 0.0640% |
73 | GMO Japan | LINK-JPY | $25.01 0.0075417 Eth | $332,663.00 13,299.400 LINK | 0.0615% |
74 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.97 0.0075382 Eth | $308,288.00 12,222.896 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0566% |
75 | Bitci TR | LINK-TRY | $25.19 0.0075985 Eth | $253,007.00 10,139.835 LINK | 0.0469% |
76 | bitcastle | LINK-USDT | $24.93 0.0075116 Eth | $249,329.00 9,874.540 LINK | 0.0457% |
77 | Slex | LINK-ETH | $25.11 0.0075640 Eth | $234,961.00 9,297.570 LINK | 0.0430% |
78 | BitStorage | LINK-ETH | $24.99 0.0075459 Eth | $233,998.00 9,361.910 LINK | 0.0433% |
79 | WhiteBIT | LINK-EUR | $24.93 0.0075208 Eth | $229,296.00 9,198.550 LINK | 0.0426% |
80 | PointPay | LINK-BTC | $24.97 0.0075339 Eth | $215,397.00 8,595.787 LINK | 0.0398% |
81 | Bitkub | LINK-THB | $25.02 0.0075519 Eth | $204,859.00 8,186.779 LINK | 0.0379% |
82 | Foxbit | LINK-BRL | $24.93 0.0075177 Eth | $201,282.00 7,855.536 LINK | 0.0364% |
83 | Binance US | LINK-USDT | $25.03 0.0075490 Eth | $188,015.00 7,512.572 LINK | 0.0348% |
84 | Nonkyc.io | LINK-BTC | $25.50 0.0075624 Eth | $179,468.00 7,099.922 LINK | 0.0329% |
85 | Hotcoin | LINK-BTC | $25.06 0.0075588 Eth | $171,578.00 6,848.020 LINK | 0.0317% |
86 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $24.96 0.0075346 Eth | $170,331.00 6,807.098 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0315% |
87 | Bitso | LINK-USD | $25.07 0.0075647 Eth | $155,296.00 6,193.343 LINK | 0.0287% |
88 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $24.92 0.0075164 Eth | $146,123.00 5,792.803 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0268% |
89 | BYDFi | LINK-USDC | $25.26 0.0075392 Eth | $137,684.00 5,449.650 LINK | 0.0252% |
90 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $24.98 0.0075354 Eth | $135,103.00 5,326.308 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0246% |
91 | KuCoin | LINK-USDC | $25.02 0.0075548 Eth | $131,064.00 5,237.471 LINK | 0.0242% |
92 | Mercado Bitcoin | LINK-BRL | $25.10 0.0075771 Eth | $126,398.00 5,036.148 LINK | 0.0233% |
93 | CoinTR | LINK-TRY | $24.93 0.0075236 Eth | $125,898.00 5,045.500 LINK | 0.0233% |
94 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $25.03 0.0075558 Eth | $107,479.00 107,769.700 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4987% |
95 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $24.98 0.0075396 Eth | $100,363.00 4,041.501 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0187% |
96 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $24.96 0.0075343 Eth | $97,266.00 97,826.502 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.4527% |
97 | KuCoin | LINK-BTC | $25.10 0.0075786 Eth | $97,187.00 3,871.461 LINK | 0.0179% |
98 | BitMart | LINK-ETH | $25.03 0.0075503 Eth | $83,710.00 3,345.040 LINK | 0.0155% |
99 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $25.14 0.0075818 Eth | $68,249.00 2,706.281 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0125% |
100 | Dex-Trade | LINK-ETH | $25.23 0.0075441 Eth | $30,193.00 1,196.770 LINK | 0.0055% |
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
- 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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