{"id":2047,"date":"2021-12-21T22:34:13","date_gmt":"2021-12-21T13:34:13","guid":{"rendered":"https:\/\/adrianroche.vn\/vi\/?p=2047"},"modified":"2021-12-21T22:52:55","modified_gmt":"2021-12-21T13:52:55","slug":"blockchain-la-gi-phuong-thuc-hoat-dong-va-nhung-uu-nhuoc-diem-cua-blockchain","status":"publish","type":"post","link":"https:\/\/adrianroche-tech.com\/vi\/blockchain-la-gi-phuong-thuc-hoat-dong-va-nhung-uu-nhuoc-diem-cua-blockchain\/","title":{"rendered":"Blockchain l\u00e0 g\u00ec? Ph\u01b0\u01a1ng th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 nh\u1eefng \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a blockchain"},"content":{"rendered":"

Blockchain l\u00e0 g\u00ec?<\/span><\/h3>\n

Blockchain l\u00e0 m\u1ed9t s\u1ed5 c\u00e1i k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c ph\u00e2n chia hay d\u1ec5 hi\u1ec3u h\u01a1n l\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u trong m\u1ed9t m\u1ea1ng. S\u1ed5 c\u00e1i \u0111\u01b0\u1ee3c chia s\u1ebb cho nh\u1eefng ng\u01b0\u1eddi tham gia v\u00e0o m\u1ea1ng l\u01b0\u1edbi. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y r\u1eb1ng trong to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng kh\u00f4ng ph\u1ea3i ch\u1ec9 c\u00f3 m\u1ed9t v\u1ecb tr\u00ed duy nh\u1ea5t, m\u1ed9t t\u00e0i li\u1ec7u c\u00f3 th\u1ec3 l\u00e0m c\u0103n c\u1ee9 \u0111\u00e1ng tin (authority) duy nh\u1ea5t, v\u00ec nh\u1eefng l\u1ea7n sao ch\u00e9p c\u00f9ng m\u1ed9t phi\u00ean b\u1ea3n s\u1ed5 c\u00e1i \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf nhi\u1ec1u n\u01a1i.<\/p>\n

T\u1ea5t c\u1ea3 c\u00e1c b\u1ea3n sao n\u00e0y \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt khi d\u1eef li\u1ec7u ho\u1eb7c giao d\u1ecbch m\u1edbi \u0111\u01b0\u1ee3c ghi v\u00e0o blockchain th\u00f4ng qua s\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ee7a t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi tham gia. Ng\u01b0\u1eddi \u0111\u00e0o c\u00f3 tr\u00e1ch nhi\u1ec7m ph\u00ea duy\u1ec7t c\u00e1c giao d\u1ecbch v\u00e0 gi\u00e1m s\u00e1t m\u1ea1ng b\u1eb1ng c\u00e1ch gi\u1ea3i quy\u1ebft c\u00e1c c\u00f4ng th\u1ee9c tinh vi v\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a m\u00e1y t\u00ednh. N\u00f3 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng ngang h\u00e0ng P2P, lo\u1ea1i b\u1ecf t\u1ea5t c\u1ea3 m\u1ecdi kh\u00e2u trung gian, l\u00e0m t\u0103ng c\u01b0\u1eddng an ninh, minh b\u1ea1ch v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u0169ng nh\u01b0 gi\u1ea3m thi\u1ec3u chi ph\u00ed v\u00e0 l\u1ed7i do con ng\u01b0\u1eddi g\u00e2y ra.<\/p>\n

B\u1eb1ng c\u00e1ch cho ph\u00e9p ph\u00e2n ph\u1ed1i c\u00e1c th\u00f4ng tin k\u1ef9 thu\u1eadt s\u1ed1 nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c sao ch\u00e9p, c\u00f4ng ngh\u1ec7 blockchain \u0111\u00e3 t\u1ea1o ra x\u01b0\u01a1ng s\u1ed1ng cho m\u1ed9t lo\u1ea1i h\u00ecnh Internet m\u1edbi.<\/p>\n

Trong cu\u1ed1n s\u00e1ch Blockchain Revolution (2016), Don & Alex Tapscott \u0111\u00e3 nh\u1eadn \u0111\u1ecbnh r\u1eb1ng: “Blockchain l\u00e0 m\u1ed9t s\u1ed5 c\u00e1i k\u1ef9 thu\u1eadt s\u1ed1 kh\u00f4ng th\u1ec3 b\u1ecb ph\u00e1 h\u1ecfng c\u1ee7a c\u00e1c giao d\u1ecbch kinh t\u1ebf, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 ghi l\u1ea1i kh\u00f4ng ch\u1ec9 nh\u1eefng giao d\u1ecbch t\u00e0i ch\u00ednh m\u00e0 c\u00f3 th\u1ec3 ghi l\u1ea1i t\u1ea5t c\u1ea3 m\u1ecdi th\u1ee9 c\u00f3 gi\u00e1 tr\u1ecb”.<\/p>\n

Blockchain ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/h3>\n

C\u00f4ng ngh\u1ec7 blockchain c\u00f3 l\u1ebd l\u00e0 ph\u00e1t minh t\u1ed1t nh\u1ea5t t\u1eeb ch\u00ednh Internet. N\u00f3 cho ph\u00e9p trao \u0111\u1ed5i gi\u00e1 tr\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n s\u1ef1 tin t\u01b0\u1edfng ho\u1eb7c ch\u1ee9ng c\u1ee9 l\u00e0m tin. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n v\u00e0 t\u00f4i \u0111\u1eb7t c\u01b0\u1ee3c 50$ cho th\u1eddi ti\u1ebft ng\u00e0y mai \u1edf San Francisco. T\u00f4i \u0111\u1eb7t c\u01b0\u1ee3c tr\u1eddi s\u1ebd n\u1eafng, b\u1ea1n c\u01b0\u1ee3c l\u00e0 m\u01b0a. H\u00f4m nay ch\u00fang ta c\u00f3 ba t\u00f9y ch\u1ecdn \u0111\u1ec3 qu\u1ea3n l\u00fd giao d\u1ecbch n\u00e0y:<\/p>\n

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  • Ch\u00fang ta c\u00f3 th\u1ec3 tin t\u01b0\u1edfng l\u1eabn nhau.<\/strong> M\u01b0a ho\u1eb7c n\u1eafng, ng\u01b0\u1eddi thua s\u1ebd tr\u1ea3 50 \u0111\u00f4 la cho ng\u01b0\u1eddi chi\u1ebfn th\u1eafng. N\u1ebfu ch\u00fang ta l\u00e0 b\u1ea1n, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t c\u00e1ch hay \u0111\u1ec3 \u0111\u1eb7t c\u01b0\u1ee3c. Tuy nhi\u00ean, d\u00f9 l\u00e0 b\u1ea1n b\u00e8 hay ng\u01b0\u1eddi l\u1ea1 th\u00ec v\u1eabn kh\u00f4ng th\u1ec3 d\u1ec5 d\u00e0ng tr\u1ea3 ti\u1ec1n cho ng\u01b0\u1eddi kia.<\/li>\n
  • Ch\u00fang ta c\u00f3 th\u1ec3 bi\u1ebfn ti\u1ec1n c\u01b0\u1ee3c th\u00e0nh m\u1ed9t h\u1ee3p \u0111\u1ed3ng.<\/strong> V\u1edbi m\u1ed9t h\u1ee3p \u0111\u1ed3ng t\u1ea1i ch\u1ed7, c\u1ea3 hai b\u00ean s\u1ebd d\u1ec5 ph\u1ea3i tr\u1ea3 ti\u1ec1n h\u01a1n, tuy nhi\u00ean, n\u1ebfu m\u1ed9t trong hai ng\u01b0\u1eddi quy\u1ebft \u0111\u1ecbnh kh\u00f4ng tr\u1ea3, ng\u01b0\u1eddi chi\u1ebfn th\u1eafng s\u1ebd ph\u1ea3i tr\u1ea3 th\u00eam ti\u1ec1n \u0111\u1ec3 trang tr\u1ea3i chi ph\u00ed ph\u00e1p l\u00fd v\u00e0 b\u1ea3n \u00e1n c\u00f3 th\u1ec3 m\u1ea5t m\u1ed9t th\u1eddi gian d\u00e0i. \u0110\u1eb7c bi\u1ec7t v\u1edbi m\u1ed9t l\u01b0\u1ee3ng ti\u1ec1n m\u1eb7t nh\u1ecf, \u0111i\u1ec1u n\u00e0y d\u01b0\u1eddng nh\u01b0 kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1ch t\u1ed1i \u01b0u \u0111\u1ec3 qu\u1ea3n l\u00fd giao d\u1ecbch.<\/li>\n
  • Ch\u00fang ta c\u00f3 th\u1ec3 nh\u1edd \u0111\u1ebfn m\u1ed9t b\u00ean th\u1ee9 ba trung l\u1eadp.<\/strong> M\u1ed7i ng\u01b0\u1eddi trong ch\u00fang ta \u0111\u01b0a 50 \u0111\u00f4 la cho m\u1ed9t ng\u01b0\u1eddi th\u1ee9 ba, c\u00f4 \u1ea5y s\u1ebd \u0111\u01b0a t\u1ed5ng s\u1ed1 ti\u1ec1n cho ng\u01b0\u1eddi chi\u1ebfn th\u1eafng. Nh\u01b0ng, c\u00f4 \u1ea5y c\u0169ng c\u00f3 th\u1ec3 b\u1ecf tr\u1ed1n v\u1edbi t\u1ea5t c\u1ea3 s\u1ed1 ti\u1ec1n. V\u00ec v\u1eady, ch\u00fang ta s\u1ebd ch\u1ecdn m\u1ed9t trong hai l\u1ef1a ch\u1ecdn \u0111\u1ea7u ti\u00ean: tin t\u01b0\u1edfng ho\u1eb7c h\u1ee3p \u0111\u1ed3ng.<\/li>\n<\/ul>\n

    \u01afu v\u00e0 ng\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Blockchain<\/span><\/h3>\n
      \n
    • \u01afu \u0111i\u1ec3m\n
        \n
      • T\u00ednh to\u00e0n v\u1eb9n: C\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 to\u00e0n v\u1eb9n v\u00e0 tin c\u1eady. C\u00e1c kh\u1ed1i lu\u00f4n \u0111\u01b0\u1ee3c th\u00eam v\u00e0o m\u1ed9t c\u00e1ch tu\u1ea7n t\u1ef1 v\u00e0 tuy\u1ebfn t\u00ednh. Kh\u1ed1i m\u1edbi lu\u00f4n lu\u00f4n \u0111\u01b0\u1ee3c th\u00eam v\u00e0o v\u1ecb tr\u00ed cu\u1ed1i c\u00f9ng c\u1ee7a kh\u1ed1i hi\u1ec7n t\u1ea1i. M\u1ed7i khi m\u1ed9t kh\u1ed1i \u0111\u01b0\u1ee3c th\u00eam v\u00e0o, vi\u1ec7c \u0111i ng\u01b0\u1ee3c l\u1ea1i kh\u1ed1i c\u0169 v\u00e0 thay \u0111\u1ed5i g\u1ea7n nh\u01b0 b\u1ea5t kh\u1ea3 thi v\u00ec c\u1ea7n ph\u1ea3i \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ee7a c\u00e1c m\u00e1y t\u00ednh tham gia m\u1ea1ng n\u00e0y.<\/li>\n
      • T\u00ednh ph\u00e2n t\u00e1n: V\u00ec d\u1eef li\u1ec7u blockchain th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong h\u00e0ng ng\u00e0n thi\u1ebft b\u1ecb tr\u00ean m\u1ed9t m\u1ea1ng l\u01b0\u1edbi g\u1ed3m c\u00e1c node ph\u00e2n t\u00e1n, h\u1ec7 th\u1ed1ng v\u00e0 d\u1eef li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c l\u1ed7i k\u1ef9 thu\u1eadt v\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ed9c h\u1ea1i.<\/li>\n
      • T\u00ednh \u1ed5n \u0111\u1ecbnh: C\u00e1c kh\u1ed1i \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn r\u1ea5t kh\u00f3 b\u1ecb \u0111\u1ea3o ng\u01b0\u1ee3c, c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t khi d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c ghi v\u00e0o blockchain, vi\u1ec7c lo\u1ea1i b\u1ecf ho\u1eb7c thay \u0111\u1ed5i n\u00f3 l\u00e0 v\u00f4 c\u00f9ng kh\u00f3 kh\u0103n.<\/li>\n<\/ul>\n<\/li>\n
      • Nh\u01b0\u1ee3c \u0111i\u1ec3m:\n
          \n
        • Chi ph\u00ed \u0111\u1ea7u t\u01b0 cao<\/li>\n
        • V\u1ea5n \u0111\u1ec1 \u0111\u1ed9 tr\u1ec5 x\u00e1c minh giao d\u1ecbch<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

          Blockchain l\u00e0 m\u1ed9t s\u1ed5 c\u00e1i k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c ph\u00e2n chia hay d\u1ec5 hi\u1ec3u h\u01a1n l\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u trong m\u1ed9t m\u1ea1ng.<\/p>\n","protected":false},"author":1,"featured_media":2057,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-2047","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/posts\/2047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/comments?post=2047"}],"version-history":[{"count":7,"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/posts\/2047\/revisions"}],"predecessor-version":[{"id":2058,"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/posts\/2047\/revisions\/2058"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/media\/2057"}],"wp:attachment":[{"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/media?parent=2047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/categories?post=2047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/adrianroche-tech.com\/vi\/wp-json\/wp\/v2\/tags?post=2047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}