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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
725,728 ( -0.001%)
Market
Price
$19.63 @ 0.006053 ETH (-3.40%)
Onchain Market Cap
$19,630,000,000.00
Circulating Supply Market Cap
$12,383,349,376.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
355.40262102 LINKValue
$6,976.55 ( ~2.1514 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Binance | LINK-USDT | $19.66 0.0060646 Eth | $48,708,963.00 2,430,590.150 LINK | 19.9710% |
2 | Coinbase Exchange | LINK-USD | $19.68 0.0060726 Eth | $15,598,396.00 792,520.900 LINK | 6.5118% |
3 | WEEX | LINK-USDT | $19.61 0.0060543 Eth | $10,507,412.00 524,109.450 LINK | 4.3064% |
4 | P2B | LINK-USDT | $19.63 0.0060550 Eth | $9,896,632.00 504,036.150 LINK | 4.1414% |
5 | Bitget | LINK-USDT | $19.69 0.0060739 Eth | $8,021,035.00 400,613.271 LINK | 3.2916% |
6 | BVOX | LINK-USDT | $19.67 0.0060570 Eth | $7,631,395.00 380,596.150 LINK | 3.1272% |
7 | Ourbit | LINK-USDT | $19.61 0.0060574 Eth | $7,094,561.00 353,805.360 LINK | 2.9070% |
8 | Bybit | LINK-USDT | $19.66 0.0060655 Eth | $6,765,601.00 337,739.414 LINK | 2.7750% |
9 | Poloniex | LINK-USDT | $19.65 0.0060639 Eth | $6,643,043.00 331,142.338 LINK | 2.7208% |
10 | MEXC | LINK-USDT | $19.67 0.0060603 Eth | $5,861,736.00 297,996.400 LINK | 2.4485% |
11 | DigiFinex | LINK-USDT | $19.66 0.0060656 Eth | $5,798,528.00 294,949.880 LINK | 2.4235% |
12 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.75 0.0060947 Eth | $5,269,565.00 265,151.700 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 2.1786% |
13 | Deepcoin | LINK-USDT | $19.64 0.0060581 Eth | $4,964,185.00 249,874.971 LINK | 2.0531% |
14 | XT.COM | LINK-USDT | $19.62 0.0060586 Eth | $4,895,053.00 244,028.170 LINK | 2.0051% |
15 | Azbit | LINK-USDT | $19.61 0.0060488 Eth | $4,859,750.00 242,475.927 LINK | 1.9923% |
16 | FameEX | LINK-USDT | $19.63 0.0060570 Eth | $4,857,283.00 242,527.009 LINK | 1.9927% |
17 | HTX | LINK-USDT | $19.69 0.0060753 Eth | $4,850,879.00 242,090.573 LINK | 1.9891% |
18 | OKX | LINK-USDT | $19.66 0.0060656 Eth | $4,764,175.00 237,575.601 LINK | 1.9520% |
19 | Coinstore | LINK-USDT | $19.59 0.0060563 Eth | $4,505,388.00 224,724.220 LINK | 1.8464% |
20 | Kraken | LINK-USD | $19.65 0.0060632 Eth | $4,361,054.00 221,919.666 LINK | 1.8234% |
21 | Binance | LINK-FDUSD | $19.70 0.0060771 Eth | $4,338,410.00 216,155.250 LINK | 1.7760% |
22 | CoinW | LINK-USDT | $19.71 0.0060712 Eth | $3,862,676.00 195,930.770 LINK | 1.6099% |
23 | Gate.io | LINK-USDT | $19.65 0.0060621 Eth | $3,790,819.00 189,516.660 LINK | 1.5572% |
24 | Bitunix | LINK-USDT | $19.62 0.0060433 Eth | $3,424,695.00 174,546.620 LINK | 1.4342% |
25 | Toobit | LINK-USDT | $19.69 0.0060610 Eth | $3,123,841.00 155,849.020 LINK | 1.2805% |
26 | BYDFi | LINK-USDT | $19.68 0.0060594 Eth | $2,693,181.00 136,869.090 LINK | 1.1246% |
27 | LATOKEN | LINK-USDT | $19.68 0.0060592 Eth | $2,351,944.00 119,522.874 LINK | 0.9821% |
28 | LBank | LINK-USDT | $19.62 0.0060468 Eth | $2,303,323.00 117,403.260 LINK | 0.9646% |
29 | Binance | LINK-USDC | $19.65 0.0060691 Eth | $2,294,812.00 114,371.160 LINK | 0.9397% |
30 | KuCoin | LINK-USDT | $19.63 0.0060560 Eth | $2,153,386.00 109,708.542 LINK | 0.9014% |
31 | QMall | LINK-USDT | $19.68 0.0060579 Eth | $2,011,815.00 100,389.744 LINK | 0.8249% |
32 | FMCPAY | LINK-USDT | $19.65 0.0060618 Eth | $1,820,228.00 90,986.481 LINK | 0.7476% |
33 | Hotcoin | LINK-USDT | $19.62 0.0060484 Eth | $1,817,140.00 92,628.610 LINK | 0.7611% |
34 | Binance | LINK-BTC | $19.62 0.0060604 Eth | $1,811,585.00 90,781.850 LINK | 0.7459% |
35 | BTSE | LINK-USDT | $19.65 0.0060627 Eth | $1,668,082.00 84,889.821 LINK | 0.6975% |
36 | Dex-Trade | LINK-USDT | $19.67 0.0060638 Eth | $1,520,234.00 77,296.960 LINK | 0.6351% |
37 | Biconomy.com | LINK-USDT | $19.67 0.0060591 Eth | $1,352,671.00 67,469.400 LINK | 0.5544% |
38 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.61 0.0060401 Eth | $1,128,464.00 56,825.864 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.4669% |
39 | CoinEx | LINK-USDT | $19.55 0.0060394 Eth | $934,844.00 46,736.147 LINK | 0.3840% |
40 | Coinbase Exchange | LINK-ETH | $19.66 0.0060552 Eth | $888,191.00 45,166.960 LINK | 0.3711% |
41 | tanX | LINK-USDC | $19.70 0.0060650 Eth | $847,356.00 42,264.750 LINK | 0.3473% |
42 | Bitvavo | LINK-EUR | $19.68 0.0060624 Eth | $802,176.00 40,764.741 LINK | 0.3349% |
43 | Coinbase Exchange | LINK-EUR | $19.71 0.0060686 Eth | $797,409.00 40,460.820 LINK | 0.3324% |
44 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $19.60 0.0060470 Eth | $786,398.00 39,255.325 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.3225% |
45 | PointPay | LINK-USDT | $19.67 0.0060604 Eth | $774,611.00 38,672.938 LINK | 0.3178% |
46 | Azbit | LINK-ETH | $19.68 0.0060575 Eth | $758,017.00 38,119.977 LINK | 0.3132% |
47 | Pionex | LINK-USDT | $19.68 0.0060708 Eth | $609,913.00 30,432.310 LINK | 0.2500% |
48 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.64 0.0060470 Eth | $494,648.00 24,875.841 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2044% |
49 | FMFW.io | LINK-USDT | $19.63 0.0060471 Eth | $489,491.00 24,937.860 LINK | 0.2049% |
50 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $19.63 0.0060458 Eth | $484,824.00 24,412.336 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.2006% |
51 | EXMO | LINK-USDT | $19.66 0.0060643 Eth | $400,933.00 20,398.306 LINK | 0.1676% |
52 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.60 0.0060392 Eth | $348,613.00 17,817.630 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1464% |
53 | Coinbase Exchange | LINK-GBP | $19.69 0.0060644 Eth | $341,845.00 17,357.220 LINK | 0.1426% |
54 | Bitbank | LINK-JPY | $19.75 0.0060794 Eth | $329,608.00 16,692.257 LINK | 0.1372% |
55 | BigONE | LINK-USDT | $19.64 0.0060610 Eth | $299,262.00 15,233.990 LINK | 0.1252% |
56 | Quickswap (v3) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.67 0.0060586 Eth | $284,951.00 290,092.026 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.3835% |
57 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $19.63 0.0060559 Eth | $271,635.00 20,248.602 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.1664% |
58 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $19.71 0.0060766 Eth | $270,814.00 13,527.013 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1111% |
59 | BitMart | LINK-BTC | $19.66 0.0060638 Eth | $259,742.00 13,209.340 LINK | 0.1085% |
60 | Gemini | LINK-USD | $19.69 0.0060752 Eth | $252,834.00 12,840.328 LINK | 0.1055% |
61 | Coinbase Exchange | LINK-BTC | $19.68 0.0060618 Eth | $207,862.00 10,564.180 LINK | 0.0868% |
62 | Bitci TR | LINK-TRY | $19.79 0.0060955 Eth | $200,993.00 9,997.390 LINK | 0.0821% |
63 | QMall | LINK-USDC | $19.69 0.0060631 Eth | $193,947.00 9,679.521 LINK | 0.0795% |
64 | GMO Japan | LINK-JPY | $19.81 0.0060979 Eth | $180,523.00 9,114.500 LINK | 0.0749% |
65 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.61 0.0060401 Eth | $160,297.00 8,083.383 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0664% |
66 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $19.61 0.0060401 Eth | $142,113.00 145,304.773 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 1.1939% |
67 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $19.73 0.0060766 Eth | $132,873.00 6,631.204 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0545% |
68 | OKX | LINK-USDC | $19.66 0.0060650 Eth | $126,703.00 6,321.370 LINK | 0.0519% |
69 | BitStorage | LINK-ETH | $19.68 0.0060713 Eth | $125,162.00 6,360.650 LINK | 0.0523% |
70 | bitcastle | LINK-USDT | $19.65 0.0060618 Eth | $123,870.00 6,181.090 LINK | 0.0508% |
71 | Kanga | LINK-PLN | $19.73 0.0060839 Eth | $103,525.00 0.000 LINK | 0.0000% |
72 | LATOKEN | LINK-BTC | $19.66 0.0060624 Eth | $91,643.00 4,661.697 LINK | 0.0383% |
73 | BitMart | LINK-ETH | $19.66 0.0060628 Eth | $83,324.00 4,237.380 LINK | 0.0348% |
74 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $19.61 0.0060519 Eth | $79,810.00 4,032.947 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0331% |
75 | Hotcoin | LINK-BTC | $19.61 0.0060595 Eth | $60,502.00 3,084.980 LINK | 0.0253% |
76 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.64 0.0060508 Eth | $58,470.00 2,942.789 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0242% |
77 | Bitso | LINK-USD | $19.69 0.0060669 Eth | $57,131.00 2,901.250 LINK | 0.0238% |
78 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174 | $19.61 0.0060401 Eth | $49,470.00 2,468.566 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0203% |
79 | EXMO | LINK-BTC | $19.67 0.0060681 Eth | $45,878.00 2,332.710 LINK | 0.0192% |
80 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $19.70 0.0060655 Eth | $37,494.00 1,798.263 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0148% |
81 | Bitexen | LINK-TRY | $19.47 0.0060081 Eth | $33,705.00 1,730.926 LINK | 0.0142% |
82 | Solidly V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $19.76 0.0060842 Eth | $32,630.00 1,641.290 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0135% |
83 | BTCMarkets | LINK-AUD | $19.60 0.0060372 Eth | $30,014.00 1,531.645 LINK | 0.0126% |
84 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $19.63 0.0060458 Eth | $28,061.00 28,649.241 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.2354% |
85 | Gemini | LINK-BTC | $19.68 0.0060711 Eth | $25,264.00 1,283.930 LINK | 0.0105% |
86 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $19.47 0.0059940 Eth | $24,288.00 1,235.582 0X5947BB275C521040051D82396192181B413227A3 | 0.0102% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $19.70 0.0060679 Eth | $18,228.95 930.716 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0076% |
88 | Dex-Trade | LINK-ETH | $19.64 0.0060592 Eth | $16,330.19 831.530 LINK | 0.0068% |
89 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $19.62 0.0060463 Eth | $10,758.25 536.937 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0044% |
90 | TokoCrypto | LINK-USDT | $19.68 0.0060592 Eth | $9,063.70 460.606 LINK | 0.0038% |
91 | KuCoin | LINK-KCS | $19.65 0.0060641 Eth | $8,245.37 419.514 LINK | 0.0034% |
92 | Uniswap V3 (Ethereum) | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XDAC17F958D2EE523A2206206994597C13D831EC7 | $19.70 0.0060783 Eth | $7,552.90 377.211 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0031% |
93 | CoinEx | LINK-USDC | $19.61 0.0060518 Eth | $5,280.19 264.575 LINK | 0.0022% |
94 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $19.76 0.0060959 Eth | $1,735.48 87.941 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0007% |
95 | Retro | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $19.66 0.0060670 Eth | $807.13 40.634 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0003% |
96 | Uniswap V3 (Optimism) | 0X0B2C639C533813F4AA9D7837CAF62653D097FF85-0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | $19.58 0.0060286 Eth | $674.88 687.225 0X0B2C639C533813F4AA9D7837CAF62653D097FF85 | 0.0056% |
97 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $19.60 0.0060432 Eth | $645.40 32.580 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0003% |
98 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $19.66 0.0060709 Eth | $404.93 20.323 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0002% |
99 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0XDA10009CBD5D07DD0CECC66161FC93D7C9000DA1 | $19.56 0.0060476 Eth | $355.79 17.740 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0001% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X8F3CF7AD23CD3CADBD9735AFF958023239C6A063 | $19.62 0.0060538 Eth | $185.92 9.287 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0001% |
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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