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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
722,317 ( 0.003%)
Market
Price
$10.89 @ 0.004375 ETH (-0.59%)
Onchain Market Cap
$10,890,000,000.00
Circulating Supply Market Cap
$6,827,451,659.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.000032026299803631 LINKValue
$0.00 ( ~0 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | WhiteBIT | LINK-USDT | $10.89 0.0043731 Eth | $13,230,923.00 1,214,730.950 LINK | 10.6668% |
2 | HTX | LINK-USDT | $10.90 0.0043759 Eth | $8,801,414.00 802,334.781 LINK | 7.0454% |
3 | Ecxx | LINK-USDT | $10.89 0.0043728 Eth | $8,768,390.00 805,336.820 LINK | 7.0718% |
4 | Bitget | LINK-USDT | $10.89 0.0043731 Eth | $8,347,108.00 760,902.205 LINK | 6.6816% |
5 | Coinbase Exchange | LINK-USD | $10.89 0.0043703 Eth | $7,898,035.00 725,522.230 LINK | 6.3709% |
6 | Bybit | LINK-USDT | $10.89 0.0043727 Eth | $4,511,399.00 410,771.351 LINK | 3.6071% |
7 | Azbit | LINK-USDT | $10.87 0.0043646 Eth | $4,340,191.00 396,100.700 LINK | 3.4782% |
8 | BTSE | LINK-USDT | $10.89 0.0043714 Eth | $3,498,887.00 321,303.212 LINK | 2.8214% |
9 | Poloniex | LINK-USDT | $10.89 0.0043718 Eth | $3,338,442.00 304,181.064 LINK | 2.6711% |
10 | WEEX | LINK-USDT | $10.90 0.0043742 Eth | $3,107,764.00 283,115.870 LINK | 2.4861% |
11 | P2B | LINK-USDT | $10.88 0.0043688 Eth | $3,079,277.00 283,077.320 LINK | 2.4858% |
12 | BVOX | LINK-USDT | $10.89 0.0043705 Eth | $2,965,821.00 270,139.212 LINK | 2.3721% |
13 | Biconomy.com | LINK-USDT | $10.91 0.0043808 Eth | $2,951,707.00 269,110.830 LINK | 2.3631% |
14 | Ourbit | LINK-USDT | $10.89 0.0043707 Eth | $2,607,276.00 237,540.180 LINK | 2.0859% |
15 | Slex | LINK-USDT | $10.91 0.0043779 Eth | $2,556,026.00 232,840.040 LINK | 2.0446% |
16 | Upbit | LINK-KRW | $10.99 0.0044120 Eth | $2,482,359.00 225,967.273 LINK | 1.9843% |
17 | OKX | LINK-USDT | $10.88 0.0043686 Eth | $2,349,225.00 214,213.199 LINK | 1.8810% |
18 | Trubit | LINK-USDT | $10.90 0.0043773 Eth | $2,318,738.00 211,035.350 LINK | 1.8531% |
19 | DigiFinex | LINK-USDT | $10.89 0.0043716 Eth | $1,900,208.00 174,570.880 LINK | 1.5329% |
20 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.93 0.0043894 Eth | $1,852,831.00 167,369.029 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 1.4697% |
21 | AscendEX (BitMax) | LINK-USDT | $10.86 0.0043609 Eth | $1,702,766.00 156,818.700 LINK | 1.3771% |
22 | C-Patex | LINK-USDT | $10.90 0.0043761 Eth | $1,576,808.00 144,643.073 LINK | 1.2701% |
23 | LBank | LINK-USDT | $10.89 0.0043702 Eth | $1,536,288.00 141,125.970 LINK | 1.2393% |
24 | CoinW | LINK-USDT | $10.88 0.0043702 Eth | $1,534,333.00 141,005.660 LINK | 1.2382% |
25 | Deepcoin | LINK-USDT | $10.88 0.0043687 Eth | $1,534,123.00 143,092.500 LINK | 1.2565% |
26 | XT.COM | LINK-USDT | $10.88 0.0043700 Eth | $1,481,920.00 135,009.300 LINK | 1.1855% |
27 | Niza Global | LINK-USD | $10.88 0.0043677 Eth | $1,284,171.00 116,933.236 LINK | 1.0268% |
28 | Kraken | LINK-USD | $10.88 0.0043698 Eth | $1,272,038.00 116,909.576 LINK | 1.0266% |
29 | Toobit | LINK-USDT | $10.87 0.0043691 Eth | $1,236,719.00 112,663.640 LINK | 0.9893% |
30 | Bitunix | LINK-USDT | $10.88 0.0043704 Eth | $1,226,544.00 112,701.680 LINK | 0.9897% |
31 | KuCoin | LINK-USDT | $10.90 0.0043742 Eth | $1,183,692.00 108,636.237 LINK | 0.9540% |
32 | HashKey Global | LINK-USDT | $10.90 0.0043748 Eth | $1,098,892.00 100,772.503 LINK | 0.8849% |
33 | Coinstore | LINK-USDT | $10.89 0.0043687 Eth | $1,090,093.00 99,342.150 LINK | 0.8723% |
34 | Crypto.com Exchange | LINK-USDT | $10.89 0.0043727 Eth | $1,034,867.00 95,051.370 LINK | 0.8347% |
35 | Binance | LINK-BTC | $10.87 0.0043667 Eth | $860,696.00 78,227.420 LINK | 0.6869% |
36 | Azbit | LINK-ETH | $10.89 0.0043773 Eth | $797,656.00 72,657.927 LINK | 0.6380% |
37 | MEXC | LINK-USDT | $10.90 0.0043741 Eth | $753,728.00 69,151.340 LINK | 0.6072% |
38 | BYDFi | LINK-USDT | $10.91 0.0043804 Eth | $695,168.00 63,719.300 LINK | 0.5595% |
39 | Crypto.com Exchange | LINK-USD | $10.89 0.0043725 Eth | $661,969.00 60,803.630 LINK | 0.5339% |
40 | HitBTC | LINK-USDT | $10.88 0.0043682 Eth | $640,371.00 58,422.060 LINK | 0.5130% |
41 | FMFW.io | LINK-USDT | $10.90 0.0043819 Eth | $636,925.00 58,427.620 LINK | 0.5131% |
42 | Bitvavo | LINK-EUR | $10.89 0.0043707 Eth | $635,871.00 58,406.078 LINK | 0.5129% |
43 | Bithumb | LINK-KRW | $10.99 0.0044128 Eth | $626,268.00 56,971.277 LINK | 0.5003% |
44 | FameEX | LINK-USDT | $10.90 0.0043759 Eth | $589,525.00 53,700.881 LINK | 0.4716% |
45 | WhiteBIT | LINK-BTC | $10.90 0.0043750 Eth | $578,671.00 53,090.110 LINK | 0.4662% |
46 | Gate.io | LINK-USDT | $10.89 0.0043699 Eth | $540,863.00 49,235.510 LINK | 0.4323% |
47 | CoinEx | LINK-USDT | $10.89 0.0043704 Eth | $527,067.00 48,028.134 LINK | 0.4217% |
48 | FMCPAY | LINK-BTC | $10.90 0.0043764 Eth | $482,124.00 43,680.400 LINK | 0.3836% |
49 | tanX | LINK-USDC | $10.90 0.0043761 Eth | $437,234.00 39,855.080 LINK | 0.3500% |
50 | FMCPAY | LINK-ETH | $10.90 0.0043748 Eth | $382,160.00 34,692.000 LINK | 0.3046% |
51 | LATOKEN | LINK-USDT | $10.90 0.0043727 Eth | $284,591.00 26,118.473 LINK | 0.2294% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $10.89 0.0043727 Eth | $241,706.00 22,055.784 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1937% |
53 | PointPay | LINK-USDT | $10.88 0.0043729 Eth | $238,926.00 21,758.226 LINK | 0.1911% |
54 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.87 0.0043628 Eth | $238,646.00 21,737.882 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1909% |
55 | Pionex | LINK-USDT | $10.90 0.0043734 Eth | $198,892.00 18,118.620 LINK | 0.1591% |
56 | BigONE | LINK-USDT | $10.92 0.0043838 Eth | $196,665.00 18,007.840 LINK | 0.1581% |
57 | BitMart | LINK-BTC | $10.90 0.0043763 Eth | $194,467.00 17,846.760 LINK | 0.1567% |
58 | LATOKEN | LINK-BTC | $10.89 0.0043700 Eth | $169,977.00 15,613.534 LINK | 0.1371% |
59 | EXMO | LINK-USDT | $10.90 0.0043754 Eth | $162,113.00 14,874.250 LINK | 0.1306% |
60 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.93 0.0043876 Eth | $137,216.00 12,534.859 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1101% |
61 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.88 0.0043667 Eth | $134,770.00 12,309.304 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1081% |
62 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.89 0.0043701 Eth | $124,879.00 11,340.236 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0996% |
63 | BitDelta | LINK-USDT | $10.91 0.0043779 Eth | $120,884.00 11,022.000 LINK | 0.0968% |
64 | Bitci TR | LINK-TRY | $10.91 0.0043783 Eth | $115,175.00 10,425.450 LINK | 0.0915% |
65 | WhiteBIT | LINK-TRY | $10.94 0.0043907 Eth | $103,269.00 9,442.270 LINK | 0.0829% |
66 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $10.87 0.0043623 Eth | $100,510.00 9,206.461 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0808% |
67 | Coinbase Exchange | LINK-BTC | $10.90 0.0043776 Eth | $92,991.00 8,528.910 LINK | 0.0749% |
68 | Slex | LINK-ETH | $10.91 0.0043788 Eth | $69,345.00 6,309.730 LINK | 0.0554% |
69 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.86 0.0043614 Eth | $62,266.00 63,019.051 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.5534% |
70 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.87 0.0043628 Eth | $56,184.00 56,708.704 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.4980% |
71 | Slex | LINK-BTC | $10.85 0.0043636 Eth | $49,886.00 4,535.900 LINK | 0.0398% |
72 | OKX | LINK-USDC | $10.88 0.0043686 Eth | $46,071.00 4,196.467 LINK | 0.0368% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.86 0.0043614 Eth | $37,558.00 3,407.645 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0299% |
74 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $10.89 0.0043731 Eth | $33,982.00 3,104.424 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0273% |
75 | GMO Japan | LINK-JPY | $10.89 0.0043728 Eth | $33,588.00 3,083.400 LINK | 0.0271% |
76 | Binance US | LINK-USDT | $10.89 0.0043692 Eth | $23,717.00 2,178.687 LINK | 0.0191% |
77 | EXMO | LINK-BTC | $10.91 0.0043788 Eth | $22,699.00 2,081.070 LINK | 0.0183% |
78 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $10.92 0.0043827 Eth | $20,670.00 1,881.533 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0165% |
79 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $10.89 0.0043726 Eth | $19,190.25 19,395.659 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 0.1703% |
80 | Nonkyc.io | LINK-BTC | $10.94 0.0043935 Eth | $17,577.85 1,593.597 LINK | 0.0140% |
81 | Bitcointry | LINK-USDT | $10.89 0.0043732 Eth | $16,706.98 1,525.758 LINK | 0.0134% |
82 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $10.85 0.0043550 Eth | $16,366.34 1,491.723 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0131% |
83 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $10.89 0.0043735 Eth | $16,225.64 1,478.737 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0130% |
84 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $10.87 0.0043628 Eth | $12,919.83 13,123.728 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1152% |
85 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $10.90 0.0043745 Eth | $11,353.57 1,032.428 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0091% |
86 | TokoCrypto | LINK-USDT | $10.91 0.0043772 Eth | $8,288.94 760.095 LINK | 0.0067% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $10.88 0.0043687 Eth | $4,558.48 413.373 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0036% |
88 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $10.92 0.0043857 Eth | $4,065.39 370.257 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0033% |
89 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $10.92 0.0043871 Eth | $3,927.33 358.031 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0031% |
90 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $10.86 0.0043621 Eth | $3,422.62 311.774 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0027% |
91 | CoinEx | LINK-BTC | $10.93 0.0043886 Eth | $2,560.88 231.579 LINK | 0.0020% |
92 | CoinEx | LINK-USDC | $10.87 0.0043638 Eth | $1,985.85 180.740 LINK | 0.0016% |
93 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $10.90 0.0043763 Eth | $1,138.01 101.875 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0009% |
94 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $10.91 0.0043805 Eth | $943.01 85.531 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0008% |
95 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $10.86 0.0043651 Eth | $919.13 84.665 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0007% |
96 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $10.87 0.0043654 Eth | $367.04 33.225 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0003% |
97 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XB33EAAD8D922B1083446DC23F610C2567FB5180F | $10.88 0.0043715 Eth | $178.44 16.387 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
98 | Uniswap V3 (Ethereum) | 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $10.93 0.0043917 Eth | $173.93 1.208 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9 | 0.0000% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $10.89 0.0043750 Eth | $129.65 11.810 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
100 | CEX.IO | LINK-USDT | $10.89 0.0043714 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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