{"id":196,"date":"2018-06-12T15:30:34","date_gmt":"2018-06-12T08:30:34","guid":{"rendered":"https:\/\/www.fiahub.com\/blog\/?p=196"},"modified":"2025-06-06T20:47:48","modified_gmt":"2025-06-06T13:47:48","slug":"blockchain-khong-co-khai-niem-ve-thoi-gian-no-can-cai-thien-lai-van-de-nay","status":"publish","type":"post","link":"https:\/\/www.fiahub.com\/blog\/blockchain-khong-co-khai-niem-ve-thoi-gian-no-can-cai-thien-lai-van-de-nay\/","title":{"rendered":"Blockchain kh\u00f4ng c\u00f3 kh\u00e1i ni\u1ec7m v\u1ec1 th\u1eddi gian"},"content":{"rendered":"\r\n

Cryptocurrencies mong mu\u1ed1n \u0111\u00e1nh s\u1ee5p\u00a0 c\u00e1c ng\u00e2n h\u00e0ng. M\u1eb7c d\u00f9, \u0111\u1ec3 n\u00f3 tr\u1edf th\u00e0nh hi\u1ec7n th\u1ef1c, ch\u1ee9c n\u0103ng c\u1ee7a c\u00e1c v\u00ed ti\u1ec1n b\u00ed\u00a0 m\u1eadt kh\u00f4ng n\u00ean nh\u01b0\u1eddng ch\u1ed7 cho c\u00e1c h\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng. M\u1ed9t trong nh\u1eefng ch\u1ee9c n\u0103ng t\u00e0i ch\u00ednh c\u01a1 b\u1ea3n nh\u1ea5t l\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch giao d\u1ecbch. Th\u1eadt kh\u00f4ng may r\u1eb1ng , blockchain kh\u00f4ng h\u1ec1 bi\u1ebft kh\u00e1i ni\u1ec7m v\u1ec1 th\u1eddi gian v\u00e0 ch\u00fang ta c\u1ea7n ph\u1ea3i thay \u0111\u1ed5i n\u00f3. Tr\u01b0\u1eddng h\u1ee3p th\u00f4ng th\u01b0\u1eddng – H\u1ecd c\u1ea7n ph\u1ea3i tr\u1ea3 thu\u1ebf. H\u1ea1n ch\u00f3t l\u00e0 ng\u00e0y th\u1ee9 10 c\u1ee7a m\u1ed7i th\u00e1ng. Ch\u00fang t\u00f4i kh\u00f4ng mu\u1ed1n chuy\u1ec3n ti\u1ec1n s\u1edbm h\u01a1n, nh\u01b0ng ch\u00ednh x\u00e1c v\u00e0o ng\u00e0y cu\u1ed1i c\u00f9ng. V\u00ed d\u1ee5 th\u1ee9 hai, m\u1ed7i th\u00e1ng ch\u00fang t\u00f4i c\u00f3 th\u1ec3 tr\u1ea3 ti\u1ec1n thu\u00ea nh\u00e0. Ch\u00fang t\u00f4i mu\u1ed1n t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c giao d\u1ecbch trong n\u0103m t\u1edbi. H\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng cho ph\u00e9p ch\u00fang t\u00f4i l\u00e0m nh\u01b0 v\u1eady, trong c\u1ea3 hai tr\u01b0\u1eddng h\u1ee3p. \u0110i\u1ec1u g\u00ec th\u00fa v\u1ecb v\u1ec1 v\u00ed ti\u1ec1n \u0111i\u1ec7n t\u1eed? C\u00e2u tr\u1ea3 l\u1eddi v\u1ec1 ti\u1ec1n \u0111i\u1ec7n t\u1eed l\u00e0 g\u00ec ?\u00a0 Hai trong s\u1ed1 c\u00e1c cryptocurrencies ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 Bitcoin v\u00e0 Ethereum. Khi n\u00f3i \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 c\u1ee7a c\u1ea3 hai n\u1ec1n t\u1ea3ng n\u00e0y th\u00ec Ethereum m\u1ea1nh h\u01a1n h\u1eb3n v\u00ec n\u00f3 l\u00e0\u00a0 h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh. \u0110i\u1ec1u \u0111\u00f3 ngh\u0129a l\u00e0 g\u00ec? Trong Bitcoin, ch\u00fang t\u00f4i ch\u1ec9 c\u00f3 th\u1ec3 chuy\u1ec3n gi\u00e1 tr\u1ecb gi\u1eefa c\u00e1c \u0111\u1ecba ch\u1ec9. Trong Ethereum, ch\u00fang ta c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh v\u00e0 thi\u1ebft l\u1eadp th\u00f4ng minh\u00a0 trong blockchain. Theo c\u00e1ch n\u00e0y, c\u00e1c \u1ee9ng d\u1ee5ng ph\u00e2n c\u1ea5p s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o ra. M\u1ed9t \u1ee9ng d\u1ee5ng v\u00ed d\u1ee5 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t trang web \u00e2m nh\u1ea1c phi t\u1eadp trung.<\/p>\r\n\r\n\r\n\r\n

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\"V\u1ea5n<\/a><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n

Quay l\u1ea1i v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch giao d\u1ecbch\u2026 trong Bitcoin, \u0111\u00f3 l\u00e0 \u201ckh\u00f4ng \u0111i\u201d. Kh\u00e1i ni\u1ec7m v\u1ec1 th\u1eddi gian c\u1ee7a n\u00f3 l\u00e0 kh\u00f4ng t\u1ed3n t\u1ea1i, ch\u1ec9 c\u00f3 c\u00e1c kh\u1ed1i v\u1edbi nhau . T\u1ea5t nhi\u00ean, b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t c\u00e1i g\u1ecdi l\u00e0 “CRON”, c\u00f3 ngh\u0129a l\u00e0, t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh, m\u00e1y t\u00ednh s\u1ebd b\u1eaft \u0111\u1ea7u m\u1ed9t qu\u00e1 tr\u00ecnh . N\u00f3 s\u1ebd c\u1ed1 g\u1eafng th\u1ef1c hi\u1ec7n m\u1ed9t giao d\u1ecbch b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t m\u00e1y \u0111\u1ec3 b\u00e0n\u00a0 \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng . \u0110\u00f3 l\u00e0 m\u1ed9t c\u00e1ch t\u1eadp trung, v\u00ec v\u1eady t\u1ea5t c\u1ea3 c\u00e1c v\u1ea5n \u0111\u1ec1,s\u1ef1 c\u1ed1v\u1ec1 m\u00e1y ho\u1eb7c internet \u0111\u1ec1u c\u00f3 th\u1ec3 b\u1ecb ng\u1eebng l\u1ea1i khi \u0111ang\u00a0 hi\u1ec7n. B\u1ea1n kh\u00f4ng mu\u1ed1n \u0111i\u1ec1u \u0111\u00f3 s\u1ea3y ra , ph\u1ea3i kh\u00f4ng? \u00dd t\u01b0\u1edfng CRON l\u00e0 \u00fd t\u01b0\u1eddn\u00a0 hi\u1ec7u qu\u1ea3 trong th\u1ebf gi\u1edbi\u00a0 Ethereum v\u00ec n\u00f3 l\u00e0 trong Bitcoin. Tuy nhi\u00ean, Ethereum c\u00f3 th\u1ec3 cung c\u1ea5p nhi\u1ec1u h\u01a1n th\u1ebf . Tr\u00ean th\u1ef1c t\u1ebf, n\u00f3 t\u1ea1o ra c\u01a1 h\u1ed9i \u0111\u1ec3 \u0111\u01b0a ra m\u1ed9t gi\u1ea3i ph\u00e1p l\u00e0m vi\u1ec7c, phi t\u1eadp trung\u2026H\u1ecd \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh. Trong logic c\u1ee7a h\u1ecd, ch\u00fang ta c\u00f3 th\u1ec3 truy c\u1eadp c\u1ea3 s\u1ed1 kh\u1ed1i hi\u1ec7n t\u1ea1i, c\u0169ng nh\u01b0\u2026 UNIX time. \u0110i\u1ec1u n\u00e0y ng\u1ee5 \u00fd r\u1eb1ng ch\u00fang ta c\u00f3 th\u1ec3 l\u01b0u l\u1ea1i c\u00e1c chi ti\u1ebft c\u1ee7a giao d\u1ecbch, ch\u00fang t\u00f4i mu\u1ed1n th\u1ef1c hi\u1ec7n, trong m\u1ed9t h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh. H\u1ee3p \u0111\u1ed3ng th\u00f4ng minh n\u00e0y s\u1ebd cho ph\u00e9p th\u1ef1c hi\u1ec7n, ch\u1ec9 trong m\u1ed9t c\u1eeda s\u1ed5 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp b\u1edfi ch\u00ednh b\u1ea1n, n\u00f3 c\u00f3 th\u1ec3 m\u1ea5t n\u0103m ph\u00fat. M\u1ed9t gi\u1ea3i ph\u00e1p \u0111\u1ec3 l\u00ean l\u1ecbch c\u00e1c giao d\u1ecbch trong Ethereum \u0111\u00e3 kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean, nh\u01b0ng b\u1ea3n th\u00e2n n\u1ec1n t\u1ea3ng cho ph\u00e9p t\u1ea1o ra m\u1ed9t giao th\u1ee9c kh\u00e1c \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 cao h\u01a1n – trong c\u00e1c h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh.<\/p>\r\n\r\n\r\n\r\n

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N\u1ed9i dung b\u00e0i vi\u1ebft<\/p>\n<\/div>