{"id":579649,"date":"2023-12-28T03:10:21","date_gmt":"2023-12-28T03:10:21","guid":{"rendered":"https:\/\/proxyelite.info\/glossary\/proof-of-work\/"},"modified":"2023-12-28T03:10:21","modified_gmt":"2023-12-28T03:10:21","slug":"proof-of-work","status":"publish","type":"glossary","link":"https:\/\/proxyelite.info\/vi\/glossary\/proof-of-work\/","title":{"rendered":"B\u1eb1ng ch\u1ee9ng l\u00e0m vi\u1ec7c"},"content":{"rendered":"<p>B\u1eb1ng ch\u1ee9ng c\u00f4ng vi\u1ec7c (PoW) l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n trong th\u1ebf gi\u1edbi ti\u1ec1n \u0111i\u1ec7n t\u1eed v\u00e0 c\u00f4ng ngh\u1ec7 chu\u1ed7i kh\u1ed1i. N\u00f3 ph\u1ee5c v\u1ee5 nh\u01b0 m\u1ed9t c\u01a1 ch\u1ebf quan tr\u1ecdng \u0111\u1ec3 b\u1ea3o m\u1eadt c\u00e1c giao d\u1ecbch, x\u00e1c th\u1ef1c c\u00e1c kh\u1ed1i v\u00e0 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a c\u00e1c m\u1ea1ng phi t\u1eadp trung. Trong b\u00e0i vi\u1ebft to\u00e0n di\u1ec7n n\u00e0y, ch\u00fang ta s\u1ebd \u0111i s\u00e2u v\u00e0o s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a Proof of Work, c\u00e1c lo\u1ea1i, \u1ee9ng d\u1ee5ng, th\u00e1ch th\u1ee9c kh\u00e1c nhau v\u00e0 m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a n\u00f3 v\u1edbi m\u00e1y ch\u1ee7 proxy.<\/p>\n<h2>Hi\u1ec3u b\u1eb1ng ch\u1ee9ng c\u00f4ng vi\u1ec7c<\/h2>\n<p>V\u1ec1 c\u1ed1t l\u00f5i, Proof of Work l\u00e0 m\u1ed9t thu\u1eadt to\u00e1n \u0111\u1ed3ng thu\u1eadn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng blockchain \u0111\u1ec3 x\u00e1c nh\u1eadn v\u00e0 x\u00e1c th\u1ef1c c\u00e1c giao d\u1ecbch. N\u00f3 y\u00eau c\u1ea7u nh\u1eefng ng\u01b0\u1eddi tham gia, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u1ee3 m\u1ecf, gi\u1ea3i c\u00e1c c\u00e2u \u0111\u1ed1 to\u00e1n h\u1ecdc ph\u1ee9c t\u1ea1p. Ng\u01b0\u1eddi khai th\u00e1c \u0111\u1ea7u ti\u00ean gi\u1ea3i th\u00e0nh c\u00f4ng c\u00e2u \u0111\u1ed1 s\u1ebd c\u00f3 \u0111\u1eb7c quy\u1ec1n th\u00eam m\u1ed9t kh\u1ed1i giao d\u1ecbch m\u1edbi v\u00e0o chu\u1ed7i kh\u1ed1i. Qu\u00e1 tr\u00ecnh n\u00e0y t\u1ed1n nhi\u1ec1u t\u00e0i nguy\u00ean v\u00e0 th\u1eddi gian, khi\u1ebfn n\u00f3 c\u00f3 \u0111\u1ed9 an to\u00e0n cao tr\u01b0\u1edbc c\u00e1c t\u00e1c nh\u00e2n \u0111\u1ed9c h\u1ea1i.<\/p>\n<h2>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a B\u1eb1ng ch\u1ee9ng c\u00f4ng vi\u1ec7c<\/h2>\n<p>H\u00e3y ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Proof of Work:<\/p>\n<ol>\n<li>\n<p><strong>B\u1ea3o v\u1ec7<\/strong>: PoW n\u1ed5i ti\u1ebfng v\u1edbi c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd. \u0110\u1ec3 thao t\u00fang chu\u1ed7i kh\u1ed1i, k\u1ebb t\u1ea5n c\u00f4ng s\u1ebd c\u1ea7n ph\u1ea3i ki\u1ec3m so\u00e1t h\u01a1n 50% s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n c\u1ee7a m\u1ea1ng, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean c\u1ef1c k\u1ef3 t\u1ed1n k\u00e9m v\u00e0 \u0111\u1ea7y th\u00e1ch th\u1ee9c.<\/p>\n<\/li>\n<li>\n<p><strong>Ph\u00e2n c\u1ea5p<\/strong>: PoW th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e2n c\u1ea5p v\u00ec b\u1ea5t k\u1ef3 ai c\u00f3 ph\u1ea7n c\u1ee9ng c\u1ea7n thi\u1ebft \u0111\u1ec1u c\u00f3 th\u1ec3 tham gia v\u00e0o m\u1ea1ng, \u0111\u1ea3m b\u1ea3o r\u1eb1ng kh\u00f4ng m\u1ed9t th\u1ef1c th\u1ec3 n\u00e0o c\u00f3 qu\u00e1 nhi\u1ec1u quy\u1ec1n ki\u1ec3m so\u00e1t.<\/p>\n<\/li>\n<li>\n<p><strong>C\u00f4ng b\u1eb1ng<\/strong>: Ng\u01b0\u1eddi khai th\u00e1c c\u1ea1nh tranh b\u00ecnh \u0111\u1eb3ng \u0111\u1ec3 gi\u1ea3i c\u00e1c c\u00e2u \u0111\u1ed1, \u0111\u1ea3m b\u1ea3o ph\u00e2n ph\u1ed1i ph\u1ea7n th\u01b0\u1edfng c\u00f4ng b\u1eb1ng.<\/p>\n<\/li>\n<li>\n<p><strong>T\u00ednh b\u1ea5t bi\u1ebfn<\/strong>: Khi m\u1ed9t kh\u1ed1i \u0111\u01b0\u1ee3c th\u00eam v\u00e0o chu\u1ed7i kh\u1ed1i, vi\u1ec7c thay \u0111\u1ed5i c\u00e1c giao d\u1ecbch trong qu\u00e1 kh\u1ee9 s\u1ebd tr\u1edf n\u00ean c\u1ef1c k\u1ef3 kh\u00f3 kh\u0103n, l\u00e0m t\u0103ng t\u00ednh b\u1ea5t bi\u1ebfn c\u1ee7a s\u1ed5 c\u00e1i.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i b\u1eb1ng ch\u1ee9ng c\u00f4ng vi\u1ec7c<\/h2>\n<p>C\u00f3 m\u1ed9t s\u1ed1 bi\u1ebfn th\u1ec3 c\u1ee7a Proof of Work, m\u1ed7i bi\u1ebfn th\u1ec3 c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m ri\u00eang. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i \u0111\u00e1ng ch\u00fa \u00fd:<\/p>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>SHA-256 (Bitcoin)<\/td>\n<td>Thu\u1eadt to\u00e1n PoW ban \u0111\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong Bitcoin, d\u1ef1a tr\u00ean h\u00e0m b\u0103m m\u1eadt m\u00e3 SHA-256.<\/td>\n<\/tr>\n<tr>\n<td>Ethash (Ethereum)<\/td>\n<td>\u0110\u01b0\u1ee3c Ethereum s\u1eed d\u1ee5ng, Ethash c\u00f3 b\u1ed9 nh\u1edb c\u1ee9ng, y\u00eau c\u1ea7u ng\u01b0\u1eddi khai th\u00e1c truy c\u1eadp c\u00e1c t\u1eadp d\u1eef li\u1ec7u l\u1edbn.<\/td>\n<\/tr>\n<tr>\n<td>RandomX (Monero)<\/td>\n<td>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ed1ng ASIC, RandomX \u0111\u1ea3m b\u1ea3o c\u01a1 h\u1ed9i khai th\u00e1c c\u00f4ng b\u1eb1ng cho t\u1ea5t c\u1ea3 ng\u01b0\u1eddi tham gia.<\/td>\n<\/tr>\n<tr>\n<td>Chu k\u1ef3 c\u00fac cu (C\u01b0\u1eddi)<\/td>\n<td>Cuckoo Cycle l\u00e0 m\u1ed9t thu\u1eadt to\u00e1n PoW gi\u1edbi h\u1ea1n b\u1ed9 nh\u1edb, gi\u00fap n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i vi\u1ec7c khai th\u00e1c ASIC.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u1ee8ng d\u1ee5ng v\u00e0 th\u00e1ch th\u1ee9c<\/h2>\n<p>B\u1eb1ng ch\u1ee9ng c\u00f4ng vi\u1ec7c t\u00ecm th\u1ea5y c\u00e1c \u1ee9ng d\u1ee5ng ngo\u00e0i ti\u1ec1n \u0111i\u1ec7n t\u1eed, bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>Ch\u1ed1ng th\u01b0 r\u00e1c<\/strong>: PoW \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ed1ng th\u01b0 r\u00e1c email b\u1eb1ng c\u00e1ch y\u00eau c\u1ea7u ng\u01b0\u1eddi g\u1eedi gi\u1ea3i c\u00e1c c\u00e2u \u0111\u1ed1 t\u00ednh to\u00e1n tr\u01b0\u1edbc khi g\u1eedi email.<\/p>\n<\/li>\n<li>\n<p><strong>L\u01b0u tr\u1eef phi t\u1eadp trung<\/strong>: C\u00e1c d\u1ef1 \u00e1n nh\u01b0 Filecoin s\u1eed d\u1ee5ng PoW \u0111\u1ec3 ch\u1ee9ng minh vi\u1ec7c l\u01b0u tr\u1eef, \u0111\u1ea3m b\u1ea3o c\u00e1c t\u1ec7p \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady theo c\u00e1ch phi t\u1eadp trung.<\/p>\n<\/li>\n<\/ul>\n<p>Nh\u1eefng th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn PoW bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>Ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng<\/strong>: M\u1ea1ng PoW, \u0111\u1eb7c bi\u1ec7t l\u00e0 Bitcoin, ti\u00eau th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3, d\u1eabn \u0111\u1ebfn nh\u1eefng lo ng\u1ea1i v\u1ec1 m\u00f4i tr\u01b0\u1eddng.<\/p>\n<\/li>\n<li>\n<p><strong>T\u1eadp trung c\u00e1c nh\u00f3m khai th\u00e1c<\/strong>: Vi\u1ec7c t\u1eadp trung s\u1ee9c m\u1ea1nh khai th\u00e1c v\u00e0o m\u1ed9t s\u1ed1 nh\u00f3m l\u1edbn g\u00e2y ra r\u1ee7i ro t\u1eadp trung h\u00f3a.<\/p>\n<\/li>\n<\/ul>\n<h2>So s\u00e1nh v\u00e0 quan \u0111i\u1ec3m<\/h2>\n<p>H\u00e3y so s\u00e1nh Proof of Work v\u1edbi c\u00e1c thu\u1eadt to\u00e1n \u0111\u1ed3ng thu\u1eadn kh\u00e1c:<\/p>\n<table>\n<thead>\n<tr>\n<th>T\u00ednh n\u0103ng<\/th>\n<th>B\u1eb1ng ch\u1ee9ng l\u00e0m vi\u1ec7c<\/th>\n<th>B\u1eb1ng ch\u1ee9ng v\u1ec1 c\u1ed5 ph\u1ea7n<\/th>\n<th>B\u1eb1ng ch\u1ee9ng v\u1ec1 c\u1ed5 ph\u1ea7n \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B\u1ea3o v\u1ec7<\/td>\n<td>Cao<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>Hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng<\/td>\n<td>Th\u1ea5p<\/td>\n<td>Cao<\/td>\n<td>Trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>Ph\u00e2n c\u1ea5p<\/td>\n<td>Cao<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>C\u00f4ng b\u1eb1ng<\/td>\n<td>Cao<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Th\u1ea5p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Nh\u00ecn v\u1ec1 t\u01b0\u01a1ng lai, PoW ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng. Nhi\u1ec1u d\u1ef1 \u00e1n blockchain \u0111ang kh\u00e1m ph\u00e1 c\u00e1c c\u01a1 ch\u1ebf \u0111\u1ed3ng thu\u1eadn thay th\u1ebf nh\u01b0 B\u1eb1ng ch\u1ee9ng c\u1ed5 ph\u1ea7n (PoS) v\u00e0 B\u1eb1ng ch\u1ee9ng c\u1ed5 ph\u1ea7n \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n (DPoS) \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng lo ng\u1ea1i n\u00e0y.<\/p>\n<h2>M\u00e1y ch\u1ee7 proxy v\u00e0 B\u1eb1ng ch\u1ee9ng c\u00f4ng vi\u1ec7c<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u1ea1o \u0111i\u1ec1u ki\u1ec7n li\u00ean l\u1ea1c an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 t\u00e0i nguy\u00ean tr\u1ef1c tuy\u1ebfn. Khi n\u00f3i \u0111\u1ebfn Proof of Work, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau:<\/p>\n<ul>\n<li>\n<p><strong>Quy\u1ec1n truy c\u1eadp v\u00e0o nh\u00f3m khai th\u00e1c<\/strong>: Th\u1ee3 m\u1ecf th\u01b0\u1eddng s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi nh\u00f3m khai th\u00e1c, n\u00e2ng cao hi\u1ec7u qu\u1ea3 v\u00e0 gi\u1ea3m \u0111\u1ed9 tr\u1ec5.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ea3o v\u1ec7<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung b\u1eb1ng c\u00e1ch che gi\u1ea5u \u0111\u1ecba ch\u1ec9 IP c\u1ee7a ng\u01b0\u1eddi khai th\u00e1c, t\u0103ng c\u01b0\u1eddng t\u00ednh \u1ea9n danh.<\/p>\n<\/li>\n<li>\n<p><strong>Truy c\u1eadp v\u00e0o c\u00e1c t\u00e0i nguy\u00ean b\u1ecb h\u1ea1n ch\u1ebf v\u1ec1 m\u1eb7t \u0111\u1ecba l\u00fd<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 gi\u00fap ng\u01b0\u1eddi khai th\u00e1c truy c\u1eadp c\u00e1c t\u00e0i nguy\u00ean b\u1ecb gi\u1edbi h\u1ea1n \u0111\u1ecba l\u00fd c\u1ea7n thi\u1ebft cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng khai th\u00e1c.<\/p>\n<\/li>\n<\/ul>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 B\u1eb1ng ch\u1ee9ng c\u00f4ng vi\u1ec7c, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ol>\n<li><a target=\"_new\" rel=\"noopener\">S\u00e1ch tr\u1eafng Bitcoin<\/a><\/li>\n<li><a target=\"_new\" rel=\"noopener\">S\u00e1ch tr\u1eafng Ethereum<\/a><\/li>\n<li><a target=\"_new\" rel=\"noopener\">T\u00e0i li\u1ec7u Grin<\/a><\/li>\n<\/ol>\n<p>T\u00f3m l\u1ea1i, Proof of Work l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m n\u1ec1n t\u1ea3ng trong c\u00f4ng ngh\u1ec7 blockchain, mang l\u1ea1i s\u1ef1 ph\u00e2n c\u1ea5p v\u00e0 b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd. M\u1eb7c d\u00f9 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c, n\u00f3 v\u1eabn ti\u1ebfp t\u1ee5c l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a nhi\u1ec1u m\u1ea1ng blockchain, v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng trong nhi\u1ec1u ng\u00e0nh kh\u00e1c nhau, bao g\u1ed3m c\u1ea3 th\u1ebf gi\u1edbi m\u00e1y ch\u1ee7 proxy.<\/p>\n<p><a target=\"_new\" href=\"https:\/\/proxyelite.info\/vi\/\" rel=\"noopener\">Truy c\u1eadp ProxyElite \u0111\u1ec3 bi\u1ebft Gi\u1ea3i ph\u00e1p m\u00e1y ch\u1ee7 proxy<\/a><\/p>\n<hr>","protected":false},"featured_media":579650,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-579649","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary\/579649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":0,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary\/579649\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media\/579650"}],"wp:attachment":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media?parent=579649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}