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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
721,833 ( 0.004%)
Market
Price
$11.39 @ 0.004323 ETH (+2.83%)
Onchain Market Cap
$11,390,000,000.00
Circulating Supply Market Cap
$7,157,915,076.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.000000000000000001 LINKValue
$0.00 ( ~0 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $11.47 0.0043083 Eth | $25,178,278.00 2,240,131.570 LINK | 14.7918% |
2 | WhiteBIT | LINK-USDT | $11.40 0.0043233 Eth | $14,159,454.00 1,241,940.830 LINK | 8.2007% |
3 | Coinbase Exchange | LINK-USD | $11.40 0.0043215 Eth | $13,835,458.00 1,213,210.950 LINK | 8.0110% |
4 | HTX | LINK-USDT | $11.41 0.0043233 Eth | $9,202,210.00 820,275.107 LINK | 5.4164% |
5 | Bitget | LINK-USDT | $11.41 0.0043235 Eth | $8,823,822.00 786,314.064 LINK | 5.1921% |
6 | Bybit | LINK-USDT | $11.41 0.0043257 Eth | $8,765,230.00 781,109.804 LINK | 5.1578% |
7 | P2B | LINK-USDT | $11.41 0.0043102 Eth | $5,297,060.00 464,271.240 LINK | 3.0656% |
8 | Azbit | LINK-USDT | $11.40 0.0043127 Eth | $4,771,736.00 426,401.310 LINK | 2.8156% |
9 | Slex | LINK-USDT | $11.41 0.0043234 Eth | $4,176,291.00 371,593.760 LINK | 2.4537% |
10 | WEEX | LINK-USDT | $11.39 0.0043181 Eth | $4,126,617.00 367,466.930 LINK | 2.4264% |
11 | OKX | LINK-USDT | $11.39 0.0043204 Eth | $3,715,470.00 330,466.913 LINK | 2.1821% |
12 | BTSE | LINK-USDT | $11.39 0.0043034 Eth | $3,690,666.00 323,990.793 LINK | 2.1393% |
13 | Biconomy.com | LINK-USDT | $11.40 0.0043185 Eth | $3,566,233.00 317,895.870 LINK | 2.0991% |
14 | DigiFinex | LINK-USDT | $11.40 0.0043219 Eth | $3,275,538.00 287,394.180 LINK | 1.8977% |
15 | FameEX | LINK-USDT | $11.39 0.0043123 Eth | $2,502,285.00 222,451.956 LINK | 1.4689% |
16 | Deepcoin | LINK-USDT | $11.38 0.0043063 Eth | $2,445,164.00 218,191.700 LINK | 1.4407% |
17 | XT.COM | LINK-USDT | $11.39 0.0043148 Eth | $2,275,356.00 202,499.120 LINK | 1.3371% |
18 | CoinW | LINK-USDT | $11.41 0.0043253 Eth | $2,230,486.00 195,413.940 LINK | 1.2903% |
19 | Trubit | LINK-USDT | $11.38 0.0043084 Eth | $2,191,140.00 195,251.880 LINK | 1.2893% |
20 | Upbit | LINK-KRW | $11.33 0.0042929 Eth | $2,184,236.00 192,823.435 LINK | 1.2732% |
21 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $11.37 0.0043105 Eth | $2,124,226.00 187,893.412 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.2407% |
22 | Toobit | LINK-USDT | $11.40 0.0043193 Eth | $2,070,940.00 184,325.690 LINK | 1.2171% |
23 | Gate.io | LINK-USDT | $11.39 0.0043129 Eth | $2,059,303.00 183,940.860 LINK | 1.2146% |
24 | Bitunix | LINK-USDT | $11.40 0.0043053 Eth | $1,871,220.00 164,181.020 LINK | 1.0841% |
25 | KuCoin | LINK-USDT | $11.40 0.0043205 Eth | $1,831,374.00 160,640.115 LINK | 1.0607% |
26 | Coinstore | LINK-USDT | $11.37 0.0043048 Eth | $1,815,092.00 161,656.200 LINK | 1.0674% |
27 | Bitexen | LINK-TRY | $11.42 0.0043229 Eth | $1,799,613.00 157,546.510 LINK | 1.0403% |
28 | LBank | LINK-USDT | $11.40 0.0043071 Eth | $1,756,650.00 154,074.550 LINK | 1.0174% |
29 | AscendEX (BitMax) | LINK-USDT | $11.39 0.0043147 Eth | $1,752,679.00 153,885.800 LINK | 1.0161% |
30 | C-Patex | LINK-USDT | $11.40 0.0043217 Eth | $1,703,944.00 149,407.235 LINK | 0.9866% |
31 | Kraken | LINK-USD | $11.42 0.0043271 Eth | $1,607,405.00 140,768.706 LINK | 0.9295% |
32 | Niza Global | LINK-USD | $11.40 0.0043220 Eth | $1,567,143.00 140,839.608 LINK | 0.9300% |
33 | WhiteBIT | LINK-BTC | $11.41 0.0043258 Eth | $1,272,878.00 111,579.570 LINK | 0.7368% |
34 | ProBit Global | LINK-USDT | $11.39 0.0043098 Eth | $1,250,762.00 109,858.766 LINK | 0.7254% |
35 | BYDFi | LINK-USDT | $11.40 0.0043219 Eth | $1,240,779.00 108,865.360 LINK | 0.7188% |
36 | HashKey Global | LINK-USDT | $11.37 0.0043087 Eth | $1,041,703.00 91,385.554 LINK | 0.6034% |
37 | Crypto.com Exchange | LINK-USDT | $11.40 0.0043215 Eth | $955,591.00 83,850.430 LINK | 0.5537% |
38 | Azbit | LINK-ETH | $11.41 0.0043172 Eth | $880,831.00 77,896.016 LINK | 0.5144% |
39 | Dex-Trade | LINK-USDT | $11.39 0.0043111 Eth | $860,261.00 75,537.780 LINK | 0.4988% |
40 | Bitexen | LINK-USDT | $11.40 0.0043133 Eth | $814,178.00 71,435.850 LINK | 0.4717% |
41 | LATOKEN | LINK-USDT | $11.40 0.0043150 Eth | $778,374.00 68,286.018 LINK | 0.4509% |
42 | FMFW.io | LINK-USDT | $11.41 0.0043183 Eth | $675,613.00 59,224.650 LINK | 0.3911% |
43 | Bitvavo | LINK-EUR | $11.42 0.0043231 Eth | $672,957.00 58,911.112 LINK | 0.3890% |
44 | HitBTC | LINK-USDT | $11.39 0.0043145 Eth | $664,639.00 59,221.140 LINK | 0.3910% |
45 | AscendEX (BitMax) | LINK-BTC | $11.36 0.0043037 Eth | $616,446.00 54,263.100 LINK | 0.3583% |
46 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.48 0.0043466 Eth | $593,204.00 52,347.955 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.3457% |
47 | BigONE | LINK-USDT | $11.43 0.0043315 Eth | $558,340.00 48,846.690 LINK | 0.3225% |
48 | BingX | LINK-USDT | $11.40 0.0043211 Eth | $527,519.00 46,977.505 LINK | 0.3102% |
49 | Crypto.com Exchange | LINK-USD | $11.40 0.0043210 Eth | $510,751.00 44,822.340 LINK | 0.2960% |
50 | Bithumb | LINK-KRW | $11.33 0.0042908 Eth | $504,908.00 44,544.342 LINK | 0.2941% |
51 | Gemini | LINK-USD | $11.35 0.0043044 Eth | $476,818.00 42,005.520 LINK | 0.2774% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.48 0.0043466 Eth | $412,715.00 36,158.723 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2388% |
53 | PointPay | LINK-USDT | $11.38 0.0043073 Eth | $410,381.00 36,508.321 LINK | 0.2411% |
54 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.47 0.0043443 Eth | $406,819.00 35,549.556 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2347% |
55 | MEXC | LINK-USDT | $11.39 0.0043128 Eth | $371,263.00 32,606.980 LINK | 0.2153% |
56 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.29 0.0042790 Eth | $358,655.00 31,874.778 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2105% |
57 | EXMO | LINK-USDT | $11.40 0.0043213 Eth | $345,667.00 30,314.306 LINK | 0.2002% |
58 | Pionex | LINK-USDT | $11.39 0.0043146 Eth | $342,572.00 30,480.380 LINK | 0.2013% |
59 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.33 0.0042885 Eth | $280,295.00 24,787.827 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1637% |
60 | LATOKEN | LINK-BTC | $11.39 0.0043107 Eth | $274,842.00 24,135.184 LINK | 0.1594% |
61 | Phemex | LINK-USDT | $11.40 0.0043189 Eth | $260,759.00 22,872.530 LINK | 0.1510% |
62 | ProBit Global | LINK-BTC | $11.39 0.0043133 Eth | $226,053.00 19,838.836 LINK | 0.1310% |
63 | Bybit | LINK-USDC | $11.41 0.0043269 Eth | $210,168.00 18,793.428 LINK | 0.1241% |
64 | BitMart | LINK-BTC | $11.39 0.0043180 Eth | $190,218.00 16,704.440 LINK | 0.1103% |
65 | BYDFi | LINK-USDC | $11.47 0.0043136 Eth | $158,655.00 13,832.690 LINK | 0.0913% |
66 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.40 0.0043199 Eth | $128,192.00 11,322.204 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0748% |
67 | BitDelta | LINK-USDT | $11.39 0.0043112 Eth | $128,003.00 11,428.000 LINK | 0.0755% |
68 | Coinbase Exchange | LINK-GBP | $11.41 0.0043240 Eth | $127,488.00 11,172.730 LINK | 0.0738% |
69 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.48 0.0043466 Eth | $126,051.00 123,974.310 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.8186% |
70 | Coinbase Exchange | LINK-ETH | $11.40 0.0043242 Eth | $121,886.00 10,688.350 LINK | 0.0706% |
71 | Bitci TR | LINK-TRY | $11.37 0.0043097 Eth | $113,008.00 10,088.470 LINK | 0.0666% |
72 | Slex | LINK-BTC | $11.38 0.0043134 Eth | $80,436.00 7,068.700 LINK | 0.0467% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.40 0.0043155 Eth | $69,378.00 6,149.432 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0406% |
74 | Slex | LINK-ETH | $11.39 0.0043155 Eth | $63,950.00 5,666.560 LINK | 0.0374% |
75 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.48 0.0043466 Eth | $50,524.00 4,467.550 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0295% |
76 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.35 0.0042996 Eth | $47,518.00 46,951.785 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.3100% |
77 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.41 0.0043218 Eth | $46,222.00 4,095.885 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0270% |
78 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.47 0.0043462 Eth | $40,644.00 40,001.841 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.2641% |
79 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.42 0.0043258 Eth | $29,421.00 2,590.310 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0171% |
80 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $11.29 0.0042798 Eth | $28,581.00 2,567.006 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0170% |
81 | EXMO | LINK-BTC | $11.40 0.0043221 Eth | $23,936.00 2,098.751 LINK | 0.0139% |
82 | Mercado Bitcoin | LINK-BRL | $11.37 0.0043027 Eth | $21,211.00 1,866.100 LINK | 0.0123% |
83 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $11.34 0.0042930 Eth | $19,314.19 1,701.048 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0112% |
84 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $11.30 0.0042819 Eth | $17,985.48 1,595.420 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0105% |
85 | Nonkyc.io | LINK-BTC | $11.35 0.0043008 Eth | $15,935.30 1,403.696 LINK | 0.0093% |
86 | KuCoin | LINK-KCS | $11.36 0.0043051 Eth | $13,607.98 1,197.890 LINK | 0.0079% |
87 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.38 0.0043124 Eth | $12,616.78 1,114.358 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0074% |
88 | Coinone | LINK-KRW | $11.30 0.0042844 Eth | $10,253.49 907.513 LINK | 0.0060% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.46 0.0043375 Eth | $10,092.40 882.648 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0058% |
90 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.29 0.0042798 Eth | $9,621.96 9,488.730 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.0627% |
91 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.37 0.0043046 Eth | $5,384.24 481.778 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0032% |
92 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $11.40 0.0043184 Eth | $3,077.30 272.389 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0018% |
93 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.34 0.0042930 Eth | $1,917.95 169.350 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0011% |
94 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.47 0.0043440 Eth | $1,568.62 94.928 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0006% |
95 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $11.40 0.0043193 Eth | $1,261.42 112.144 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0007% |
96 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X7F5C764CBC14F9669B88837CA1490CCA17C31607 | $11.44 0.0043362 Eth | $857.95 76.479 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0005% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $11.47 0.0043468 Eth | $769.63 67.561 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0004% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.45 0.0043187 Eth | $298.72 26.398 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0002% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $11.42 0.0043080 Eth | $120.26 10.756 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
100 | CEX.IO | LINK-USDT | $11.39 0.0043112 Eth | $56.52 5.012 LINK | 0.0000% |
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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