ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,355 ( 0.007%)
Market
Price
$11.11 @ 0.004402 ETH (+2.08%)
Onchain Market Cap
$11,110,000,000.00
Circulating Supply Market Cap
$6,963,022,642.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0 LINKValue
$0.00Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $11.11 0.0043982 Eth | $17,846,591.00 1,627,434.430 LINK | 10.9953% |
2 | WhiteBIT | LINK-USDT | $11.10 0.0043974 Eth | $17,360,436.00 1,563,541.820 LINK | 10.5636% |
3 | HTX | LINK-USDT | $11.10 0.0043944 Eth | $9,930,860.00 905,664.284 LINK | 6.1188% |
4 | CoinTR | LINK-USDT | $11.11 0.0044001 Eth | $9,871,029.00 899,563.030 LINK | 6.0776% |
5 | Coinbase Exchange | LINK-USD | $11.08 0.0043857 Eth | $9,608,974.00 867,470.790 LINK | 5.8608% |
6 | Bitget | LINK-USDT | $11.10 0.0043956 Eth | $8,368,103.00 762,598.335 LINK | 5.1523% |
7 | Bybit | LINK-USDT | $11.10 0.0043958 Eth | $6,064,810.00 552,405.739 LINK | 3.7322% |
8 | P2B | LINK-USDT | $11.11 0.0043984 Eth | $3,793,953.00 341,515.530 LINK | 2.3073% |
9 | Azbit | LINK-USDT | $11.10 0.0043969 Eth | $3,793,512.00 345,999.340 LINK | 2.3376% |
10 | WEEX | LINK-USDT | $11.10 0.0043940 Eth | $3,673,584.00 334,820.200 LINK | 2.2621% |
11 | Poloniex | LINK-USDT | $11.10 0.0043958 Eth | $3,583,498.00 326,346.224 LINK | 2.2049% |
12 | BVOX | LINK-USDT | $11.10 0.0043962 Eth | $3,557,690.00 324,389.170 LINK | 2.1916% |
13 | Upbit | LINK-KRW | $11.18 0.0044277 Eth | $3,436,084.00 307,264.791 LINK | 2.0759% |
14 | BTSE | LINK-USDT | $11.10 0.0043952 Eth | $3,421,182.00 308,270.490 LINK | 2.0827% |
15 | OKX | LINK-USDT | $11.10 0.0043953 Eth | $3,223,236.00 294,285.319 LINK | 1.9883% |
16 | Ourbit | LINK-USDT | $11.10 0.0043960 Eth | $3,164,981.00 288,550.270 LINK | 1.9495% |
17 | Slex | LINK-USDT | $11.11 0.0044006 Eth | $3,075,087.00 280,261.700 LINK | 1.8935% |
18 | Biconomy.com | LINK-USDT | $11.10 0.0043957 Eth | $3,056,807.00 278,759.740 LINK | 1.8834% |
19 | Trubit | LINK-USDT | $11.09 0.0043938 Eth | $2,863,490.00 260,740.610 LINK | 1.7616% |
20 | DigiFinex | LINK-USDT | $11.10 0.0043948 Eth | $2,402,775.00 216,472.560 LINK | 1.4625% |
21 | CoinW | LINK-USDT | $11.11 0.0043985 Eth | $1,925,404.00 173,348.980 LINK | 1.1712% |
22 | KuCoin | LINK-USDT | $11.10 0.0043941 Eth | $1,921,702.00 173,160.501 LINK | 1.1699% |
23 | Deepcoin | LINK-USDT | $11.12 0.0044017 Eth | $1,859,214.00 168,411.660 LINK | 1.1378% |
24 | XT.COM | LINK-USDT | $11.10 0.0043939 Eth | $1,782,837.00 162,566.810 LINK | 1.0983% |
25 | C-Patex | LINK-USDT | $11.10 0.0043932 Eth | $1,766,263.00 159,179.195 LINK | 1.0754% |
26 | AscendEX (BitMax) | LINK-USDT | $11.08 0.0043899 Eth | $1,750,429.00 157,913.300 LINK | 1.0669% |
27 | LBank | LINK-USDT | $11.10 0.0043955 Eth | $1,667,780.00 150,271.050 LINK | 1.0153% |
28 | Hotcoin | LINK-USDT | $11.10 0.0043960 Eth | $1,645,406.00 148,221.390 LINK | 1.0014% |
29 | Bitunix | LINK-USDT | $11.11 0.0043997 Eth | $1,552,383.00 139,750.740 LINK | 0.9442% |
30 | Toobit | LINK-USDT | $11.08 0.0043847 Eth | $1,449,309.00 132,191.850 LINK | 0.8931% |
31 | Kraken | LINK-USD | $11.10 0.0043938 Eth | $1,353,307.00 121,951.433 LINK | 0.8239% |
32 | Niza Global | LINK-USD | $11.10 0.0043941 Eth | $1,339,547.00 121,963.231 LINK | 0.8240% |
33 | Coinstore | LINK-USDT | $11.09 0.0043918 Eth | $1,293,406.00 117,973.130 LINK | 0.7971% |
34 | Crypto.com Exchange | LINK-USDT | $11.10 0.0043965 Eth | $1,228,884.00 110,670.910 LINK | 0.7477% |
35 | Binance | LINK-BTC | $11.08 0.0043882 Eth | $1,178,426.00 106,537.500 LINK | 0.7198% |
36 | Oceanex | LINK-USDT | $11.09 0.0043893 Eth | $1,100,356.00 99,254.710 LINK | 0.6706% |
37 | HashKey Global | LINK-USDT | $11.11 0.0043993 Eth | $1,097,860.00 101,645.715 LINK | 0.6867% |
38 | BYDFi | LINK-USDT | $11.10 0.0043946 Eth | $868,563.00 78,257.220 LINK | 0.5287% |
39 | MEXC | LINK-USDT | $11.10 0.0043940 Eth | $847,426.00 76,360.680 LINK | 0.5159% |
40 | Gate.io | LINK-USDT | $11.10 0.0043953 Eth | $802,925.00 73,284.830 LINK | 0.4951% |
41 | WhiteBIT | LINK-BTC | $11.09 0.0043918 Eth | $755,846.00 68,146.900 LINK | 0.4604% |
42 | Crypto.com Exchange | LINK-USD | $11.10 0.0043961 Eth | $753,027.00 67,821.960 LINK | 0.4582% |
43 | Azbit | LINK-ETH | $11.10 0.0043941 Eth | $739,943.00 66,736.103 LINK | 0.4509% |
44 | Bitvavo | LINK-EUR | $11.10 0.0043942 Eth | $725,302.00 65,369.507 LINK | 0.4416% |
45 | FameEX | LINK-USDT | $11.10 0.0043977 Eth | $711,872.00 64,896.800 LINK | 0.4385% |
46 | CoinEx | LINK-USDT | $11.09 0.0043910 Eth | $630,286.00 57,481.440 LINK | 0.3884% |
47 | Dex-Trade | LINK-USDT | $11.11 0.0043982 Eth | $607,294.00 54,672.662 LINK | 0.3694% |
48 | FMCPAY | LINK-BTC | $11.10 0.0043931 Eth | $533,707.00 48,055.200 LINK | 0.3247% |
49 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.08 0.0043852 Eth | $361,305.00 32,672.989 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2207% |
50 | Niza Global | LINK-EUR | $11.09 0.0043929 Eth | $347,456.00 31,531.391 LINK | 0.2130% |
51 | LATOKEN | LINK-USDT | $11.10 0.0043952 Eth | $337,854.00 30,435.435 LINK | 0.2056% |
52 | PointPay | LINK-USDT | $11.10 0.0043960 Eth | $298,183.00 27,175.792 LINK | 0.1836% |
53 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.10 0.0043951 Eth | $294,088.00 26,981.333 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1823% |
54 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $11.08 0.0043852 Eth | $289,335.00 26,199.443 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1770% |
55 | BigONE | LINK-USDT | $11.08 0.0043872 Eth | $285,857.00 25,790.220 LINK | 0.1742% |
56 | Pionex | LINK-USDT | $11.09 0.0043925 Eth | $245,399.00 22,372.920 LINK | 0.1512% |
57 | LATOKEN | LINK-BTC | $11.10 0.0043982 Eth | $242,053.00 21,798.351 LINK | 0.1473% |
58 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.10 0.0043963 Eth | $221,005.00 19,932.954 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1347% |
59 | WhiteBIT | LINK-EUR | $11.12 0.0044046 Eth | $212,238.00 19,085.810 LINK | 0.1289% |
60 | BitMart | LINK-BTC | $11.11 0.0043970 Eth | $193,459.00 17,419.760 LINK | 0.1177% |
61 | Phemex | LINK-USDT | $11.11 0.0043991 Eth | $183,038.00 16,477.990 LINK | 0.1113% |
62 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.06 0.0043802 Eth | $178,409.00 16,135.275 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1090% |
63 | Hotcoin | LINK-BTC | $11.08 0.0043890 Eth | $163,274.00 14,733.710 LINK | 0.0995% |
64 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $11.13 0.0044067 Eth | $151,430.00 13,796.964 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0932% |
65 | WhiteBIT | LINK-TRY | $11.16 0.0044185 Eth | $144,458.00 12,947.780 LINK | 0.0875% |
66 | BitDelta | LINK-USDT | $11.10 0.0043952 Eth | $126,866.00 11,570.000 LINK | 0.0782% |
67 | Hotcoin | LINK-ETH | $11.10 0.0043962 Eth | $126,441.00 11,387.780 LINK | 0.0769% |
68 | Coinbase Exchange | LINK-GBP | $11.11 0.0043989 Eth | $98,333.00 8,853.070 LINK | 0.0598% |
69 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $11.11 0.0043991 Eth | $91,386.00 8,303.986 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0561% |
70 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.06 0.0043802 Eth | $81,617.00 80,961.777 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.5470% |
71 | Slex | LINK-BTC | $11.11 0.0044007 Eth | $69,919.00 6,313.500 LINK | 0.0427% |
72 | Slex | LINK-ETH | $11.11 0.0043987 Eth | $62,302.00 5,609.690 LINK | 0.0379% |
73 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.08 0.0043869 Eth | $61,928.00 61,283.752 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4140% |
74 | OKX | LINK-USDC | $11.06 0.0043792 Eth | $59,215.00 5,402.050 LINK | 0.0365% |
75 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.11 0.0043990 Eth | $47,438.00 4,338.225 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0293% |
76 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $11.06 0.0043802 Eth | $45,531.00 4,138.078 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0280% |
77 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $11.10 0.0043963 Eth | $25,124.00 24,868.289 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1680% |
78 | Binance US | LINK-USDT | $11.09 0.0043918 Eth | $24,216.00 2,183.980 LINK | 0.0148% |
79 | EXMO | LINK-BTC | $11.03 0.0043672 Eth | $24,106.00 2,186.267 LINK | 0.0148% |
80 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $11.04 0.0043719 Eth | $22,115.00 2,017.741 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0136% |
81 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $11.05 0.0043751 Eth | $21,848.00 1,976.071 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0134% |
82 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $11.07 0.0043847 Eth | $21,042.00 20,980.058 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1417% |
83 | Pangolin | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $11.07 0.0043849 Eth | $19,607.11 1,826.428 0X5947BB275C521040051D82396192181B413227A3 | 0.0123% |
84 | Nonkyc.io | LINK-BTC | $11.06 0.0043814 Eth | $18,536.24 1,669.912 LINK | 0.0113% |
85 | LFJ | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $11.05 0.0043739 Eth | $17,391.86 1,619.176 0X5947BB275C521040051D82396192181B413227A3 | 0.0109% |
86 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $11.11 0.0043983 Eth | $12,618.22 1,135.800 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0077% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $11.11 0.0043996 Eth | $12,400.85 1,134.666 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0077% |
88 | THENA FUSION | 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827-0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | $11.11 0.0043997 Eth | $12,316.51 18.757 0X52F24A5E03AEE338DA5FD9DF68D2B6FAE1178827 | 0.0001% |
89 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $11.08 0.0043859 Eth | $8,581.28 778.970 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0053% |
90 | CoinEx | LINK-BTC | $11.05 0.0043763 Eth | $7,218.49 652.202 LINK | 0.0044% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $11.07 0.0043823 Eth | $6,571.66 592.836 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0040% |
92 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $11.09 0.0043936 Eth | $6,554.48 599.878 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0041% |
93 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $11.06 0.0043806 Eth | $4,075.87 371.620 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0025% |
94 | CoinEx | LINK-USDC | $11.09 0.0043911 Eth | $2,232.44 203.871 LINK | 0.0014% |
95 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $11.13 0.0044041 Eth | $1,382.55 123.262 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0008% |
96 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $11.08 0.0043857 Eth | $785.01 71.220 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0005% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X61299774020DA444AF134C82FA83E3810B309991 | $11.12 0.0044030 Eth | $665.31 60.413 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0004% |
98 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X7130D2A12B9BCBFAE4F2634D864A1EE1CE3EAD9C | $11.11 0.0044004 Eth | $269.41 24.539 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0002% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $11.08 0.0043868 Eth | $230.28 20.980 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
100 | CEX.IO | LINK-USDT | $11.10 0.0043973 Eth | $18.43 1.678 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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