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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
733,131 ( 0.008%)
Market
Price
$18.24 @ 0.006970 ETH (-0.98%)
Onchain Market Cap
$18,240,000,000.00
Circulating Supply Market Cap
$11,655,088,974.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
145.898663171596974661 LINKValue
$2,661.19 ( ~1.0169 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $18.35 0.0069548 Eth | $61,475,260.00 3,347,842.590 LINK | 20.5898% |
2 | Coinbase Exchange | LINK-USD | $18.17 0.0069458 Eth | $29,072,822.00 1,600,485.660 LINK | 9.8433% |
3 | Bybit | LINK-USDT | $18.16 0.0069449 Eth | $26,630,312.00 1,452,381.047 LINK | 8.9324% |
4 | HTX | LINK-USDT | $18.14 0.0069322 Eth | $15,739,446.00 850,134.825 LINK | 5.2285% |
5 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $18.16 0.0069437 Eth | $13,879,847.00 758,885.057 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 4.6673% |
6 | P2B | LINK-USDT | $18.15 0.0069196 Eth | $12,152,071.00 669,466.180 LINK | 4.1173% |
7 | Gate.io | LINK-USDT | $18.13 0.0069312 Eth | $9,935,743.00 541,827.280 LINK | 3.3323% |
8 | OKX | LINK-USDT | $18.13 0.0069307 Eth | $9,790,272.00 530,364.465 LINK | 3.2618% |
9 | MEXC | LINK-USDT | $18.19 0.0069445 Eth | $8,268,775.00 454,485.330 LINK | 2.7952% |
10 | DigiFinex | LINK-USDT | $18.13 0.0069317 Eth | $7,851,497.00 433,112.240 LINK | 2.6637% |
11 | XT.COM | LINK-USDT | $18.13 0.0069245 Eth | $6,161,061.00 335,510.110 LINK | 2.0634% |
12 | Coinstore | LINK-USDT | $18.16 0.0069414 Eth | $5,384,164.00 292,851.840 LINK | 1.8011% |
13 | KuCoin | LINK-USDT | $18.13 0.0069314 Eth | $5,171,615.00 285,225.168 LINK | 1.7542% |
14 | Binance | LINK-USDC | $18.18 0.0069224 Eth | $4,908,379.00 269,366.470 LINK | 1.6567% |
15 | BTSE | LINK-USDT | $18.14 0.0069315 Eth | $4,874,945.00 268,806.180 LINK | 1.6532% |
16 | Bitunix | LINK-USDT | $18.16 0.0069359 Eth | $4,528,215.00 249,474.600 LINK | 1.5343% |
17 | CoinW | LINK-USDT | $18.18 0.0069357 Eth | $4,363,806.00 240,078.560 LINK | 1.4765% |
18 | Binance | LINK-FDUSD | $18.07 0.0069102 Eth | $4,261,547.00 232,542.530 LINK | 1.4302% |
19 | Kraken | LINK-USD | $18.14 0.0069352 Eth | $3,986,352.00 219,735.906 LINK | 1.3514% |
20 | Hotcoin | LINK-USDT | $18.17 0.0069488 Eth | $3,624,813.00 199,463.720 LINK | 1.2267% |
21 | BYDFi | LINK-USDT | $18.28 0.0069326 Eth | $3,413,423.00 186,737.820 LINK | 1.1485% |
22 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $18.17 0.0069415 Eth | $2,718,209.00 148,791.384 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.9151% |
23 | LATOKEN | LINK-USDT | $18.36 0.0069587 Eth | $2,517,342.00 137,107.184 LINK | 0.8432% |
24 | QMall | LINK-USDT | $18.18 0.0069436 Eth | $2,509,966.00 136,765.671 LINK | 0.8411% |
25 | Bitvavo | LINK-EUR | $18.24 0.0069544 Eth | $2,492,765.00 136,640.932 LINK | 0.8404% |
26 | Coinbase Exchange | LINK-EUR | $18.20 0.0069485 Eth | $2,427,097.00 133,327.770 LINK | 0.8200% |
27 | FMCPAY | LINK-USDT | $18.13 0.0069245 Eth | $2,121,799.00 115,017.704 LINK | 0.7074% |
28 | Dex-Trade | LINK-USDT | $18.15 0.0069353 Eth | $2,001,483.00 110,302.360 LINK | 0.6784% |
29 | WhiteBIT | LINK-USDT | $18.28 0.0069876 Eth | $1,790,429.00 97,931.660 LINK | 0.6023% |
30 | Biconomy.com | LINK-USDT | $18.15 0.0069322 Eth | $1,654,928.00 89,490.570 LINK | 0.5504% |
31 | FMCPAY | LINK-ETH | $18.16 0.0069336 Eth | $1,228,251.00 67,007.200 LINK | 0.4121% |
32 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $18.16 0.0069440 Eth | $1,224,551.00 67,101.268 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4127% |
33 | Coinbase Exchange | LINK-GBP | $18.17 0.0069380 Eth | $1,172,550.00 64,532.410 LINK | 0.3969% |
34 | CoinEx | LINK-USDT | $18.15 0.0069304 Eth | $1,168,607.00 63,512.843 LINK | 0.3906% |
35 | FMCPAY | LINK-BTC | $18.19 0.0069382 Eth | $1,086,564.00 58,889.200 LINK | 0.3622% |
36 | PointPay | LINK-USDT | $18.18 0.0069380 Eth | $953,904.00 51,980.779 LINK | 0.3197% |
37 | Trubit | LINK-USDT | $18.14 0.0069282 Eth | $932,739.00 50,323.060 LINK | 0.3095% |
38 | Bitbank | LINK-JPY | $18.26 0.0069747 Eth | $729,749.00 39,969.730 LINK | 0.2458% |
39 | Binance | LINK-ETH | $18.33 0.0069521 Eth | $724,767.00 39,453.560 LINK | 0.2426% |
40 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $18.15 0.0069315 Eth | $686,587.00 37,497.926 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2306% |
41 | EXMO | LINK-USDT | $18.15 0.0069342 Eth | $667,376.00 36,766.970 LINK | 0.2261% |
42 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.18 0.0069411 Eth | $665,435.00 36,377.313 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.2237% |
43 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $18.19 0.0069471 Eth | $662,357.00 36,350.270 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.2236% |
44 | Phemex | LINK-USDT | $18.20 0.0069452 Eth | $638,738.00 35,104.930 LINK | 0.2159% |
45 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $18.22 0.0069576 Eth | $564,508.00 31,110.484 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1913% |
46 | Binance | LINK-TRY | $18.23 0.0069718 Eth | $515,914.00 27,927.360 LINK | 0.1718% |
47 | BitStorage | LINK-USDT | $18.17 0.0069416 Eth | $497,728.00 27,391.320 LINK | 0.1685% |
48 | BigONE | LINK-USDT | $18.27 0.0069329 Eth | $485,903.00 26,602.160 LINK | 0.1636% |
49 | EarnBIT | LINK-USDT | $18.14 0.0069336 Eth | $467,137.00 25,333.899 LINK | 0.1558% |
50 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $18.16 0.0069437 Eth | $401,459.00 44,721.668 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.2750% |
51 | QMall | LINK-USDC | $18.19 0.0069445 Eth | $401,215.00 21,926.567 LINK | 0.1349% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.20 0.0069490 Eth | $398,872.00 21,795.089 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1340% |
53 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $18.18 0.0069411 Eth | $376,985.00 381,883.081 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.3486% |
54 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $18.17 0.0069405 Eth | $337,743.00 18,706.512 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1150% |
55 | Slex | LINK-ETH | $18.14 0.0069380 Eth | $316,638.00 17,271.820 LINK | 0.1062% |
56 | WhiteBIT | LINK-TRY | $18.26 0.0069692 Eth | $315,416.00 17,275.350 LINK | 0.1062% |
57 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $18.17 0.0069425 Eth | $313,409.00 17,137.757 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1054% |
58 | Bybit | LINK-USDC | $18.19 0.0069548 Eth | $304,934.00 16,717.952 LINK | 0.1028% |
59 | Coinbase Exchange | LINK-ETH | $18.20 0.0069595 Eth | $267,044.00 14,672.110 LINK | 0.0902% |
60 | Bitkub | LINK-THB | $18.56 0.0070218 Eth | $262,805.00 14,156.986 LINK | 0.0871% |
61 | BitMart | LINK-BTC | $18.33 0.0069601 Eth | $256,838.00 14,012.040 LINK | 0.0862% |
62 | Gemini | LINK-USD | $18.16 0.0069440 Eth | $238,589.00 13,137.964 LINK | 0.0808% |
63 | Coinbase Exchange | LINK-BTC | $18.16 0.0069357 Eth | $223,693.00 12,315.220 LINK | 0.0757% |
64 | BitDelta | LINK-USDT | $18.39 0.0069612 Eth | $220,794.00 11,981.000 LINK | 0.0737% |
65 | Bitci TR | LINK-TRY | $18.34 0.0070038 Eth | $187,938.00 10,082.800 LINK | 0.0620% |
66 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $18.16 0.0069427 Eth | $178,458.00 9,769.462 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0601% |
67 | LATOKEN | LINK-BTC | $18.22 0.0069653 Eth | $176,595.00 9,694.476 LINK | 0.0596% |
68 | Bitso | LINK-USD | $18.27 0.0069786 Eth | $169,699.00 9,289.444 LINK | 0.0571% |
69 | GMO Japan | LINK-JPY | $18.55 0.0070860 Eth | $166,328.00 8,967.000 LINK | 0.0551% |
70 | BitStorage | LINK-ETH | $18.19 0.0069428 Eth | $163,719.00 9,002.950 LINK | 0.0554% |
71 | WhiteBIT | LINK-EUR | $18.20 0.0069546 Eth | $156,959.00 8,625.970 LINK | 0.0531% |
72 | OKX | LINK-USDC | $18.13 0.0069292 Eth | $150,944.00 8,240.264 LINK | 0.0507% |
73 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $18.13 0.0069123 Eth | $135,844.00 7,401.733 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0455% |
74 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $18.16 0.0069419 Eth | $130,309.00 7,165.769 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0441% |
75 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $18.19 0.0069492 Eth | $125,941.00 6,891.516 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0424% |
76 | Hotcoin | LINK-BTC | $18.20 0.0069398 Eth | $120,880.00 6,639.980 LINK | 0.0408% |
77 | Kraken | LINK-GBP | $18.39 0.0070313 Eth | $111,214.00 6,046.564 LINK | 0.0372% |
78 | BYDFi | LINK-USDC | $18.46 0.0069877 Eth | $110,849.00 6,006.220 LINK | 0.0369% |
79 | WhiteBIT | LINK-BTC | $18.30 0.0069830 Eth | $103,397.00 5,648.620 LINK | 0.0347% |
80 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $18.17 0.0069415 Eth | $95,379.00 95,471.784 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.5872% |
81 | PointPay | LINK-BTC | $18.18 0.0069387 Eth | $90,329.00 4,918.723 LINK | 0.0303% |
82 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $18.15 0.0069417 Eth | $82,630.00 4,523.252 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0278% |
83 | PancakeSwap (v2) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $18.28 0.0069805 Eth | $80,603.00 4,403.641 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0271% |
84 | KuCoin | LINK-USDC | $18.13 0.0069290 Eth | $80,172.00 4,423.173 LINK | 0.0272% |
85 | KuCoin | LINK-BTC | $18.15 0.0069395 Eth | $60,647.00 3,340.896 LINK | 0.0205% |
86 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $18.21 0.0069548 Eth | $55,673.00 3,042.024 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0187% |
87 | EXMO | LINK-BTC | $18.23 0.0069708 Eth | $47,101.00 2,583.073 LINK | 0.0159% |
88 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $18.19 0.0069466 Eth | $46,270.00 2,544.235 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0156% |
89 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $18.17 0.0069397 Eth | $41,130.00 2,280.257 0X5947BB275C521040051D82396192181B413227A3 | 0.0140% |
90 | Bitexen | LINK-TRY | $18.37 0.0069643 Eth | $33,488.00 1,823.003 LINK | 0.0112% |
91 | Hotcoin | LINK-ETH | $18.16 0.0069433 Eth | $32,127.00 1,768.830 LINK | 0.0109% |
92 | Dex-Trade | LINK-ETH | $18.18 0.0069470 Eth | $22,683.00 1,247.950 LINK | 0.0077% |
93 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $18.22 0.0069556 Eth | $21,318.00 32.007 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0002% |
94 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $18.22 0.0069587 Eth | $18,976.65 1,038.739 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0064% |
95 | Mercado Bitcoin | LINK-BRL | $18.26 0.0069795 Eth | $18,422.75 1,009.045 LINK | 0.0062% |
96 | CoinEx | LINK-USDC | $18.22 0.0069581 Eth | $18,071.98 991.926 LINK | 0.0061% |
97 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $18.24 0.0069623 Eth | $17,730.81 17,845.409 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1098% |
98 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $18.26 0.0069750 Eth | $16,846.15 917.931 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0056% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $18.23 0.0069604 Eth | $16,100.30 876.798 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0054% |
100 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $18.19 0.0069494 Eth | $13,326.10 55.567 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0003% |
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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