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ERC-20
Oracle
Overview
Max Total Supply
1,000,000,000 LINK
Holders
728,005 ( 0.017%)
Market
Price
$23.32 @ 0.006833 ETH (+1.18%)
Onchain Market Cap
$23,320,000,000.00
Circulating Supply Market Cap
$14,715,718,522.00
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Coinbase Exchange | LINK-USD | $23.28 0.0068213 Eth | $36,919,925.00 1,585,907.440 LINK | 11.2964% |
2 | Bitget | LINK-USDT | $23.31 0.0068386 Eth | $27,577,725.00 1,203,086.961 LINK | 8.5696% |
3 | Bybit | LINK-USDT | $23.28 0.0068296 Eth | $22,449,404.00 979,758.368 LINK | 6.9788% |
4 | P2B | LINK-USDT | $23.34 0.0068401 Eth | $19,480,831.00 834,518.190 LINK | 5.9443% |
5 | OKX | LINK-USDT | $23.29 0.0068271 Eth | $17,786,453.00 775,722.145 LINK | 5.5255% |
6 | Gate.io | LINK-USDT | $23.26 0.0068180 Eth | $17,406,656.00 758,569.460 LINK | 5.4033% |
7 | CoinW | LINK-USDT | $23.29 0.0068308 Eth | $16,191,600.00 695,281.740 LINK | 4.9525% |
8 | DigiFinex | LINK-USDT | $23.27 0.0068265 Eth | $12,798,149.00 549,907.610 LINK | 3.9170% |
9 | HTX | LINK-USDT | $23.29 0.0068305 Eth | $11,265,399.00 492,451.726 LINK | 3.5077% |
10 | XT.COM | LINK-USDT | $23.34 0.0068384 Eth | $9,546,331.00 416,082.100 LINK | 2.9637% |
11 | Azbit | LINK-USDT | $23.27 0.0068217 Eth | $9,497,692.00 414,075.463 LINK | 2.9495% |
12 | Coinstore | LINK-USDT | $23.34 0.0068436 Eth | $8,195,136.00 357,575.640 LINK | 2.5470% |
13 | Bitunix | LINK-USDT | $23.29 0.0068313 Eth | $7,966,989.00 341,721.170 LINK | 2.4341% |
14 | BTSE | LINK-USDT | $23.28 0.0068232 Eth | $6,881,810.00 295,643.603 LINK | 2.1059% |
15 | Biconomy.com | LINK-USDT | $23.34 0.0068454 Eth | $6,469,870.00 282,407.074 LINK | 2.0116% |
16 | Binance | LINK-FDUSD | $23.41 0.0068605 Eth | $6,198,528.00 270,474.870 LINK | 1.9266% |
17 | BYDFi | LINK-USDT | $23.31 0.0068386 Eth | $6,176,089.00 264,905.660 LINK | 1.8869% |
18 | Kraken | LINK-USD | $23.28 0.0068225 Eth | $5,302,966.00 227,839.462 LINK | 1.6229% |
19 | Hotcoin | LINK-USDT | $23.28 0.0068295 Eth | $5,270,668.00 226,361.200 LINK | 1.6124% |
20 | KuCoin | LINK-USDT | $23.26 0.0068190 Eth | $4,716,600.00 202,767.425 LINK | 1.4443% |
21 | LATOKEN | LINK-USDT | $23.27 0.0068226 Eth | $4,600,234.00 197,648.825 LINK | 1.4078% |
22 | LBank | LINK-USDT | $23.28 0.0068255 Eth | $4,486,964.00 192,699.530 LINK | 1.3726% |
23 | Dex-Trade | LINK-USDT | $23.31 0.0068332 Eth | $3,064,689.00 131,462.169 LINK | 0.9364% |
24 | Binance | LINK-USDC | $23.37 0.0068503 Eth | $2,968,941.00 129,337.830 LINK | 0.9213% |
25 | FMCPAY | LINK-USDT | $23.26 0.0068239 Eth | $2,923,877.00 127,648.191 LINK | 0.9092% |
26 | Coinbase Exchange | LINK-GBP | $23.31 0.0068337 Eth | $2,523,039.00 108,231.570 LINK | 0.7709% |
27 | Dcoin | LINK-USDT | $23.46 0.0068696 Eth | $2,489,052.00 106,111.000 LINK | 0.7558% |
28 | Bitvavo | LINK-EUR | $23.32 0.0068322 Eth | $2,067,721.00 88,678.789 LINK | 0.6317% |
29 | PointPay | LINK-USDT | $23.30 0.0068266 Eth | $1,584,566.00 69,076.293 LINK | 0.4920% |
30 | FMCPAY | LINK-ETH | $23.38 0.0068510 Eth | $1,499,402.00 64,399.680 LINK | 0.4587% |
31 | EXMO | LINK-USDT | $23.28 0.0068230 Eth | $1,451,292.00 62,350.007 LINK | 0.4441% |
32 | FMCPAY | LINK-BTC | $23.37 0.0068541 Eth | $1,432,030.00 62,069.900 LINK | 0.4421% |
33 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.30 0.0068290 Eth | $1,422,894.00 61,012.299 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.4346% |
34 | WhiteBIT | LINK-BTC | $23.30 0.0068336 Eth | $1,380,456.00 59,254.010 LINK | 0.4221% |
35 | WhiteBIT | LINK-TRY | $23.24 0.0068113 Eth | $1,377,206.00 59,268.220 LINK | 0.4222% |
36 | Bybit | LINK-USDC | $23.25 0.0068202 Eth | $1,338,740.00 58,559.965 LINK | 0.4171% |
37 | CoinEx | LINK-USDT | $23.38 0.0068584 Eth | $1,227,773.00 53,671.520 LINK | 0.3823% |
38 | Bitbank | LINK-JPY | $23.34 0.0068411 Eth | $1,188,702.00 50,936.957 LINK | 0.3628% |
39 | Phemex | LINK-USDT | $23.26 0.0068195 Eth | $1,051,552.00 45,199.730 LINK | 0.3220% |
40 | Coinbase Exchange | LINK-USDT | $23.30 0.0068266 Eth | $1,012,182.00 43,448.704 LINK | 0.3095% |
41 | tanX | LINK-USDC | $23.31 0.0068327 Eth | $949,700.00 41,397.720 LINK | 0.2949% |
42 | Uniswap V3 (Ethereum) | 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984-0X514910771AF9CA656AF840DFF83E8264ECF986CA | $23.28 0.0068236 Eth | $945,822.00 68,216.646 0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984 | 0.4859% |
43 | Azbit | LINK-ETH | $23.36 0.0068420 Eth | $920,547.00 39,554.831 LINK | 0.2817% |
44 | Coinbase Exchange | LINK-EUR | $23.30 0.0068306 Eth | $893,018.00 38,325.510 LINK | 0.2730% |
45 | EarnBIT | LINK-USDT | $23.24 0.0068132 Eth | $860,305.00 37,587.386 LINK | 0.2677% |
46 | BigONE | LINK-USDT | $23.32 0.0068369 Eth | $845,043.00 36,232.480 LINK | 0.2581% |
47 | BitStorage | LINK-USDT | $23.36 0.0068432 Eth | $787,426.00 33,709.610 LINK | 0.2401% |
48 | itBit | LINK-USD | $23.42 0.0068630 Eth | $765,707.00 32,694.578 LINK | 0.2329% |
49 | Binance | LINK-TRY | $23.35 0.0068493 Eth | $617,775.00 26,812.660 LINK | 0.1910% |
50 | Gemini | LINK-USD | $23.40 0.0068648 Eth | $536,464.00 22,921.360 LINK | 0.1633% |
51 | PancakeSwap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C | $23.27 0.0068217 Eth | $530,479.00 22,732.390 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.1619% |
52 | Koinpark | LINK-USDT | $23.34 0.0068469 Eth | $500,033.00 21,422.992 LINK | 0.1526% |
53 | WhiteBIT | LINK-EUR | $23.33 0.0068352 Eth | $459,006.00 19,678.440 LINK | 0.1402% |
54 | GMO Japan | LINK-JPY | $23.35 0.0068439 Eth | $426,623.00 18,273.800 LINK | 0.1302% |
55 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9 | $23.36 0.0068471 Eth | $409,295.00 17,827.684 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.1270% |
56 | Slex | LINK-ETH | $23.36 0.0068408 Eth | $405,220.00 17,395.020 LINK | 0.1239% |
57 | HashKey Exchange | LINK-USD | $23.40 0.0068536 Eth | $377,529.00 16,456.598 LINK | 0.1172% |
58 | Uniswap V3 (Polygon) | 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | $23.28 0.0068254 Eth | $338,200.00 332,493.198 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359 | 2.3683% |
59 | BitMart | LINK-BTC | $23.28 0.0068280 Eth | $335,741.00 14,423.040 LINK | 0.1027% |
60 | Quickswap (v3) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.32 0.0068343 Eth | $334,292.00 14,354.980 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.1023% |
61 | OKX | LINK-USDC | $23.30 0.0068305 Eth | $291,043.00 12,719.350 LINK | 0.0906% |
62 | Bitci TR | LINK-TRY | $23.20 0.0067966 Eth | $233,105.00 10,144.690 LINK | 0.0723% |
63 | Camelot V3 | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.48 0.0068878 Eth | $210,550.00 9,037.293 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0644% |
64 | Bitkub | LINK-THB | $23.51 0.0068933 Eth | $208,695.00 8,875.053 LINK | 0.0632% |
65 | Coinbase Exchange | LINK-BTC | $23.29 0.0068257 Eth | $206,365.00 8,861.790 LINK | 0.0631% |
66 | DeGate | 0X514910771AF9CA656AF840DFF83E8264ECF986CA-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $23.28 0.0068213 Eth | $193,314.00 8,432.075 0X514910771AF9CA656AF840DFF83E8264ECF986CA | 0.0601% |
67 | Hotcoin | LINK-BTC | $23.30 0.0068258 Eth | $184,026.00 7,899.670 LINK | 0.0563% |
68 | LATOKEN | LINK-BTC | $23.29 0.0068278 Eth | $180,139.00 7,733.704 LINK | 0.0551% |
69 | PointPay | LINK-BTC | $23.30 0.0068290 Eth | $137,414.00 5,949.979 LINK | 0.0424% |
70 | BitMart | LINK-ETH | $23.31 0.0068322 Eth | $134,330.00 5,763.660 LINK | 0.0411% |
71 | Bitso | LINK-USD | $23.37 0.0068496 Eth | $109,521.00 4,687.269 LINK | 0.0334% |
72 | Binance US | LINK-USDT | $23.38 0.0068510 Eth | $102,610.00 4,387.914 LINK | 0.0313% |
73 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619 | $23.32 0.0068364 Eth | $92,224.00 3,957.854 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0282% |
74 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.36 0.0068514 Eth | $88,232.00 86,931.559 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.6192% |
75 | Coinbase Exchange | LINK-ETH | $23.38 0.0068525 Eth | $78,501.00 3,357.880 LINK | 0.0239% |
76 | Hotcoin | LINK-ETH | $23.30 0.0068286 Eth | $64,575.00 2,771.870 LINK | 0.0197% |
77 | Uniswap V3 (Optimism) | 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6-0X4200000000000000000000000000000000000006 | $23.31 0.0068315 Eth | $59,389.00 2,546.848 0X350A791BFC2C21F9ED5D10980DAD2E2638FFA7F6 | 0.0181% |
78 | Mercado Bitcoin | LINK-BRL | $23.38 0.0068549 Eth | $41,024.00 1,754.385 LINK | 0.0125% |
79 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X2F2A2543B76A4166549F7AAB2E75BEF0AEFC5B0F | $23.34 0.0068430 Eth | $39,826.00 1,721.544 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0123% |
80 | Korbit | LINK-KRW | $23.57 0.0069143 Eth | $30,489.00 1,303.780 LINK | 0.0093% |
81 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X2170ED0880AC9A755FD29B2688956BD959F933F8 | $23.36 0.0068465 Eth | $17,910.32 784.285 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0056% |
82 | Bitexen | LINK-TRY | $23.14 0.0067816 Eth | $17,424.24 753.126 LINK | 0.0054% |
83 | Uniswap V3 (Avalanche) | 0X5947BB275C521040051D82396192181B413227A3-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7 | $23.32 0.0068417 Eth | $15,882.98 675.166 0X5947BB275C521040051D82396192181B413227A3 | 0.0048% |
84 | Uniswap V3 (Arbitrum One) | 0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.34 0.0068410 Eth | $15,410.28 15,214.159 0XAF88D065E77C8CC2239327C5EDB3A432268E5831 | 0.1084% |
85 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC2132D05D31C914A87C6611C10748AEB04B58E8F | $23.44 0.0068718 Eth | $14,734.42 642.626 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0046% |
86 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.40 0.0068571 Eth | $14,451.84 619.209 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0044% |
87 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6 | $23.44 0.0068700 Eth | $13,914.46 599.138 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0043% |
88 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X55D398326F99059FF775485246999027B3197955 | $23.44 0.0068760 Eth | $8,185.38 354.799 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0025% |
89 | Uniswap V3 (Arbitrum One) | 0X0C880F6761F1AF8D9AA9C466984B80DAB9A8C9E8-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.34 0.0068403 Eth | $4,626.67 898.408 0X0C880F6761F1AF8D9AA9C466984B80DAB9A8C9E8 | 0.0064% |
90 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270 | $23.35 0.0068460 Eth | $4,047.93 171.954 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0012% |
91 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XD6DF932A45C0F255F85145F286EA0B292B21C90B | $23.33 0.0068426 Eth | $3,587.02 156.275 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0011% |
92 | Ace | LINK-USDT | $23.30 0.0068293 Eth | $3,499.26 152.540 LINK | 0.0011% |
93 | Uniswap V3 (Arbitrum One) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0XFA7F8980B0F1E64A2062791CC3B0871572F1F7F0 | $23.34 0.0068414 Eth | $3,196.90 135.424 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0010% |
94 | PancakeSwap V3 (Arbitrum) | 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1 | $23.47 0.0068781 Eth | $3,079.73 131.537 0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | 0.0009% |
95 | CoinEx | LINK-USDC | $23.35 0.0068482 Eth | $3,027.41 131.950 LINK | 0.0009% |
96 | CoinEx | LINK-BTC | $23.43 0.0068688 Eth | $2,085.42 90.196 LINK | 0.0006% |
97 | Uniswap V3 (Arbitrum One) | 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XF97F4DF75117A78C1A5A0DBB814AF92458539FB4 | $23.30 0.0068293 Eth | $1,125.80 3.255 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196 | 0.0000% |
98 | Uniswap V3 (BSC) | 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD-0X8AC76A51CC950D9822D68B83FE1AD97B32CD580D | $23.34 0.0068466 Eth | $912.12 39.790 0XF8A0BF9CF54BB92F17374D9E9A321E6A111A51BD | 0.0003% |
99 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XC3C7D422809852031B44AB29EEC9F1EFF2A58756 | $23.43 0.0068712 Eth | $527.31 21.923 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39 | 0.0002% |
100 | Uniswap V3 (Polygon) | 0X53E0BCA35EC356BD5DDDFEBBD1FC0FD03FABAD39-0XB33EAAD8D922B1083446DC23F610C2567FB5180F | $23.24 0.0068162 Eth | $474.77 20.141 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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