{"id":16685,"date":"2022-05-31T10:05:16","date_gmt":"2022-05-31T03:05:16","guid":{"rendered":"https:\/\/www.fiahub.com\/blog\/?p=16685"},"modified":"2025-03-06T10:36:24","modified_gmt":"2025-03-06T03:36:24","slug":"ethereum-2-0-va-da-vu-tru-layer-2","status":"publish","type":"post","link":"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/","title":{"rendered":"Ethereum 2.0 v\u00e0 \u0111a v\u0169 tr\u1ee5 Layer 2"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung b\u00e0i vi\u1ebft<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#1_Tong_quan_ve_Ethereum_20\" >1. T\u1ed5ng quan v\u1ec1 Ethereum 2.0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#2_Dinh_nghia_cua_Ethereum_20\" >2. \u0110\u1ecbnh ngh\u0129a c\u1ee7a Ethereum 2.0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Su_khac_biet_giua_Ethereum_10_va_ETH_20\" >S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa Ethereum 1.0 v\u00e0 ETH 2.0?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Bang_chung_ve_su_dong_thuan_co_phan\" >B\u1eb1ng ch\u1ee9ng v\u1ec1 s\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ed5 ph\u1ea7n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Shard_Chains\" >Shard Chains<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#3_Lo_trinh_cho_Ethereum_20\" >3. L\u1ed9 tr\u00ecnh cho Ethereum 2.0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Chuoi_bao_hieu\" >Chu\u1ed7i b\u00e1o hi\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Hop_nhat_chuoi_bao_hieu_voi_Mainnet\" >H\u1ee3p nh\u1ea5t chu\u1ed7i b\u00e1o hi\u1ec7u v\u1edbi Mainnet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Shard_Chains-2\" >Shard Chains<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#4_Loi_ich_cua_Ethereum_20\" >4. L\u1ee3i \u00edch c\u1ee7a Ethereum 2.0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#5_Da_vu_tru_layer_2\" >5. \u0110a v\u0169 tr\u1ee5 layer 2<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Loi_ich_cua_Layer_2\" >L\u1ee3i \u00edch c\u1ee7a Layer 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Layer_2_hoat_dong_nhu_the_nao\" >Layer 2 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Rollups\" >Rollups<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Su_dung_Layer_2\" >S\u1eed d\u1ee5ng Layer 2<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Lop_tong_quat_2s\" >L\u1edbp t\u1ed5ng qu\u00e1t 2s<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Ung_dung_cua_Layer_2\" >\u1ee8ng d\u1ee5ng c\u1ee7a Layer 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/#Luu_y_ve_sidechains_validium_va_cac_blockchains_thay_the\" >L\u01b0u \u00fd v\u1ec1 sidechains, validium v\u00e0 c\u00e1c blockchains thay th\u1ebf<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1_Tong_quan_ve_Ethereum_20\"><\/span><span style=\"font-weight: 400;\">1. T\u1ed5ng quan v\u1ec1 Ethereum 2.0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">S\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a Ethereum v\u00e0o n\u0103m 2015 \u0111\u00e3 m\u1edf ra c\u00e1nh c\u1eeda cho nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i m\u1edbi trong kh\u00f4ng gian ti\u1ec1n \u0111i\u1ec7n t\u1eed, th\u1ef1c t\u1ebf l\u00e0 t\u1ea5t c\u1ea3 v\u1ec1 Bitcoin cho \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m \u0111\u00f3. Vitalik Buterin v\u00e0 nh\u00f3m c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a anh \u1ea5y \u0111\u00e3 t\u1ea1o ra m\u1ed9t h\u1ec7 sinh th\u00e1i h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh \u0111\u1ed9t ph\u00e1 cho ng\u00e0nh c\u00f4ng nghi\u1ec7p blockchain. Ng\u00e0y nay, Ethereum ho\u00e0n to\u00e0n l\u00e0 m\u1ed9t v\u0169 tr\u1ee5 kh\u00e1c trong th\u1ebf gi\u1edbi ti\u1ec1n \u0111i\u1ec7n t\u1eed. H\u1ea7u h\u1ebft m\u1ecdi nh\u00e0 ph\u00e1t tri\u1ec3n \u0111\u1ec1u mu\u1ed1n t\u1ea1o c\u00e1c \u1ee9ng d\u1ee5ng phi t\u1eadp trung tr\u00ean n\u1ec1n t\u1ea3ng c\u1ee7a Ethereum. Tuy nhi\u00ean, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng ti\u1ebfp t\u1ee5c l\u00e0 v\u1ea5n \u0111\u1ec1 l\u1edbn nh\u1ea5t \u0111\u1ed1i v\u1edbi Ethereum, do \u0111\u00f3 k\u00eau g\u1ecdi c\u00e1c gi\u1ea3i ph\u00e1p m\u1edbi nh\u01b0 <a href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-la-gi-tai-sao-no-lai-quan-trong-den-vay\/\">Ethereum 2.0<\/a>, mang \u0111\u1ebfn nh\u1eefng c\u1ea3i ti\u1ebfn so v\u1edbi chu\u1ed7i kh\u1ed1i Ethereum hi\u1ec7n c\u00f3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t blockchain ph\u1ee5c v\u1ee5 nhu c\u1ea7u c\u1ee7a c\u00e1c h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh c\u0169ng nh\u01b0 c\u00e1c \u1ee9ng d\u1ee5ng phi t\u1eadp trung. T\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m, m\u1ea1ng l\u01b0\u1edbi blockchain s\u1ebd g\u1eb7p ph\u1ea3i r\u00e0o c\u1ea3n \u0111\u00e1ng k\u1ec3 cho s\u1ef1 ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai c\u1ee7a ch\u00fang. Ethereum Foundation \u0111\u00e3 l\u00e0m vi\u1ec7c tr\u00ean m\u1ed9t s\u1ed1 c\u1ea3i ti\u1ebfn trong m\u1ea1ng blockchain hi\u1ec7n c\u00f3 v\u00e0 gi\u1edbi thi\u1ec7u ETH 2.0.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u1eady, Ethereum 2.0 l\u00e0 g\u00ec? N\u00f3 c\u00f3 li\u00ean quan nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ee7a chu\u1ed7i kh\u1ed1i Ethereum ng\u00e0y nay? Nh\u1eefng thay \u0111\u1ed5i \u0111\u1ed1i v\u1edbi chu\u1ed7i kh\u1ed1i Ethereum hi\u1ec7n t\u1ea1i v\u1edbi s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a ETH 2.0 l\u00e0 g\u00ec? H\u00e3y \u0111\u1ec3 ch\u00fang t\u00f4i t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi cho t\u1ea5t c\u1ea3 nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y trong ph\u1ea7n gi\u1edbi thi\u1ec7u chi ti\u1ebft v\u1ec1 Ethereum 2.0 v\u00e0 ph\u00e1c th\u1ea3o c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1eb7c bi\u1ec7t c\u1ee7a n\u00f3.<\/span><\/p>\n<figure id=\"attachment_16686\" aria-describedby=\"caption-attachment-16686\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-16686\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51.jpg\" alt=\"ETH, Ethereum 2.0, Layer 2\" width=\"900\" height=\"506\" srcset=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51.jpg 1920w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51-300x169.jpg 300w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51-1024x576.jpg 1024w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51-150x84.jpg 150w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51-768x432.jpg 768w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51-1536x864.jpg 1536w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51-450x253.jpg 450w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-51-1200x675.jpg 1200w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-16686\" class=\"wp-caption-text\">ETH2 ho\u1eb7c ETH 2.0 v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c n\u00e2ng c\u1ea5p nh\u1eb1m c\u1ea3i thi\u1ec7n t\u00ednh b\u1ea3o m\u1eadt, t\u00ednh b\u1ec1n v\u1eefng v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng c\u1ee7a chu\u1ed7i kh\u1ed1i Ethereum<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"2_Dinh_nghia_cua_Ethereum_20\"><\/span><span style=\"font-weight: 400;\">2. \u0110\u1ecbnh ngh\u0129a c\u1ee7a Ethereum 2.0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Kh\u00eda c\u1ea1nh \u0111\u1ea7u ti\u00ean trong b\u1ea5t k\u1ef3 tin t\u1ee9c ho\u1eb7c cu\u1ed9c th\u1ea3o lu\u1eadn n\u00e0o v\u1ec1 Ethereum 2.0 \u0111\u1ec1u t\u1eadp trung v\u00e0o \u0111\u1ecbnh ngh\u0129a c\u1ee7a n\u00f3. ETH2 ho\u1eb7c ETH 2.0 v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c n\u00e2ng c\u1ea5p nh\u1eb1m c\u1ea3i thi\u1ec7n t\u00ednh b\u1ea3o m\u1eadt, t\u00ednh b\u1ec1n v\u1eefng v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng c\u1ee7a chu\u1ed7i kh\u1ed1i Ethereum. C\u00e1c n\u00e2ng c\u1ea5p m\u1edbi v\u1ec1 c\u01a1 b\u1ea3n nh\u1eb1m m\u1ee5c \u0111\u00edch l\u00e0m cho m\u1ea1ng Ethereum nhanh h\u01a1n v\u00e0 ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean h\u01a1n. Nh\u1eefng c\u1ea3i ti\u1ebfn t\u00e1ch ETH 2.0 kh\u1ecfi Ethereum 1.0 l\u00e0 g\u00ec?<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su_khac_biet_giua_Ethereum_10_va_ETH_20\"><\/span><span style=\"font-weight: 400;\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa Ethereum 1.0 v\u00e0 ETH 2.0?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e2u tr\u1ea3 l\u1eddi cho &#8220;Ethereum 2.0 l\u00e0 g\u00ec?&#8221; kh\u00f4ng ph\u1ea3n \u00e1nh v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh k\u1ef9 thu\u1eadt xem n\u00f3 t\u1ed1t h\u01a1n Ethereum 1.0 nh\u01b0 th\u1ebf n\u00e0o. ETH 2.0 \u0111\u00e3 gi\u1edbi thi\u1ec7u hai c\u1ea3i ti\u1ebfn quan tr\u1ecdng cung c\u1ea5p s\u1ef1 \u0111\u1ea3m b\u1ea3o cho c\u00e1c l\u1ee3i \u00edch mong mu\u1ed1n. Nh\u1eefng ti\u1ebfn b\u1ed9 ch\u00ednh bao g\u1ed3m s\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ee7a Proof of Stake v\u00e0 sharding.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u1ed5ng quan v\u1ec1 hai c\u1ea3i ti\u1ebfn ch\u00ednh m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y trong ETH 2.0.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Bang_chung_ve_su_dong_thuan_co_phan\"><\/span><span style=\"font-weight: 400;\">B\u1eb1ng ch\u1ee9ng v\u1ec1 s\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ed5 ph\u1ea7n<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Ethereum 2.0 s\u1eed d\u1ee5ng \u0111\u1ed3ng thu\u1eadn Proof of Stake thay v\u00ec \u0111\u1ed3ng thu\u1eadn Proof of Work \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong Ethereum 1.0. S\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ee7a Proof of Work y\u00eau c\u1ea7u s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n v\u1eadt l\u00fd t\u1eeb c\u00e1c th\u1ee3 \u0111\u00e0o v\u00e0 \u0111i\u1ec7n \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c kh\u1ed1i tr\u00ean blockchain. Ng\u01b0\u1ee3c l\u1ea1i, Proof of Stake kh\u00f4ng d\u1ef1a v\u00e0o th\u1ee3 \u0111\u00e0o v\u00e0 \u0111i\u1ec7n. B\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 Proof of Stake \u1edf ph\u1ea7n sau trong ph\u1ea7n v\u1ec1 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ETH 2.0.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Shard_Chains\"><\/span><span style=\"font-weight: 400;\">Shard Chains<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">M\u1ed9t c\u1ea3i ti\u1ebfn quan tr\u1ecdng kh\u00e1c trong ETH 2.0 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn sharding. Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c chu\u1ed7i ph\u00e2n \u0111o\u1ea1n l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 thi\u1ebfu th\u00fac \u0111\u1ea9y c\u1ea3i ti\u1ebfn kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cho chu\u1ed7i kh\u1ed1i Ethereum. C\u00e1ch ti\u1ebfp c\u1eadn hi\u1ec7n t\u1ea1i c\u1ee7a vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c chu\u1ed7i \u0111\u01a1n v\u1edbi c\u00e1c kh\u1ed1i li\u00ean ti\u1ebfp mang l\u1ea1i kh\u1ea3 n\u0103ng b\u1ea3o m\u1eadt t\u1ed1t h\u01a1n v\u00e0 c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n d\u1ec5 d\u00e0ng \u0111\u1ec3 x\u00e1c minh th\u00f4ng tin. M\u1eb7t kh\u00e1c, vi\u1ec7c chuy\u1ec3n t\u1eebng giao d\u1ecbch \u0111\u1ec3 \u0111i qua m\u1ecdi n\u00fat \u0111\u1ea7y \u0111\u1ee7 trong c\u00e1c kh\u1ed1i li\u00ean ti\u1ebfp tr\u00ean blockchain c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 giao d\u1ecbch. Chu\u1ed7i ph\u00e2n \u0111o\u1ea1n \u0111\u00f3ng vai tr\u00f2 l\u00e0 m\u1ed9t \u0111i\u1ec3m nh\u1ea5n quan tr\u1ecdng trong tin t\u1ee9c Ethereum 2.0 v\u00ec ch\u00fang ch\u1ecbu tr\u00e1ch nhi\u1ec7m ph\u1ea7n l\u1edbn trong vi\u1ec7c c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sharding l\u00e0 c\u01a1 ch\u1ebf chia nh\u1ecf chu\u1ed7i kh\u1ed1i Ethereum \u0111\u1ec3 ph\u00e2n chia tr\u00e1ch nhi\u1ec7m x\u1eed l\u00fd d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u gi\u1eefa c\u00e1c n\u00fat kh\u00e1c nhau. C\u00e1c chu\u1ed7i ph\u00e2n \u0111o\u1ea1n gi\u00fap x\u1eed l\u00fd c\u00e1c giao d\u1ecbch song song v\u1edbi nhau thay v\u00ec x\u1eed l\u00fd ch\u00fang li\u00ean ti\u1ebfp. V\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 cho qu\u00e1 tr\u00ecnh x\u1eed l\u00fd song song \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, Ethereum 2.0 c\u00f3 th\u1ec3 mang l\u1ea1i th\u00f4ng l\u01b0\u1ee3ng cao h\u01a1n.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-16687\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52.jpg\" alt=\"Ethereum 2.0, Layer 2.0, Blockchain\" width=\"900\" height=\"401\" srcset=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52.jpg 1542w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52-300x134.jpg 300w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52-1024x456.jpg 1024w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52-150x67.jpg 150w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52-768x342.jpg 768w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52-1536x684.jpg 1536w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52-450x200.jpg 450w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-52-1200x535.jpg 1200w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Lo_trinh_cho_Ethereum_20\"><\/span><span style=\"font-weight: 400;\">3. L\u1ed9 tr\u00ecnh cho Ethereum 2.0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Xem x\u00e9t c\u00e1c l\u1ee3i \u00edch gi\u00e1 tr\u1ecb h\u1ea5p d\u1eabn c\u1ee7a ETH 2.0, th\u1eadt h\u1ee3p l\u00fd khi b\u0103n kho\u0103n v\u1ec1 t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a n\u00f3. Ethereum 2.0 c\u00f3 ra m\u1eaft kh\u00f4ng? N\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh v\u00e0o th\u00e1ng 12 n\u0103m 2020 ph\u1ea3i kh\u00f4ng? Ch\u00e0, b\u1ea1n kh\u00f4ng ph\u1ea3i l\u00e0 ng\u01b0\u1eddi duy nh\u1ea5t c\u00f3 nh\u1eefng c\u00e2u h\u1ecfi nh\u01b0 v\u1eady. N\u1ebfu b\u1ea1n nh\u00ecn k\u1ef9, ETH 2.0 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t m\u1ea1ng blockchain kh\u00e1c t\u1ed1t h\u01a1n Ethereum 1.0. Ng\u01b0\u1ee3c l\u1ea1i, Ethereum 2.0 l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c b\u1ea3n n\u00e2ng c\u1ea5p, \u0111ang \u0111\u01b0\u1ee3c tri\u1ec3n khai theo c\u00e1c giai \u0111o\u1ea1n kh\u00e1c nhau. Do \u0111\u00f3, b\u1ea1n c\u1ea7n c\u00f3 m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng quan r\u00f5 r\u00e0ng v\u1ec1 l\u1ed9 tr\u00ecnh c\u1ee7a ETH 2.0 \u0111\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3. H\u00e3y c\u00f9ng ch\u00fang t\u00f4i xem x\u00e9t c\u00e1c giai \u0111o\u1ea1n kh\u00e1c nhau tr\u00ean l\u1ed9 tr\u00ecnh c\u1ee7a ETH 2.0 \u0111\u1ec3 bi\u1ebft khi n\u00e0o n\u00f3 s\u1ebd ho\u00e0n to\u00e0n h\u1ebft gi\u00e1 tr\u1ecb.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chuoi_bao_hieu\"><\/span><span style=\"font-weight: 400;\">Chu\u1ed7i b\u00e1o hi\u1ec7u<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Giai \u0111o\u1ea1n \u0111\u1ea7u ti\u00ean \u0111\u00e3 thu h\u00fat r\u1ea5t nhi\u1ec1u s\u1ef1 ch\u00fa \u00fd trong tin t\u1ee9c Ethereum 2.0, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi s\u1ef1 c\u01b0\u1eddng \u0111i\u1ec7u xung quanh ETH 2.0. Trong giai \u0111o\u1ea1n n\u00e0y, Ethereum \u0111\u00e3 tri\u1ec3n khai Beacon Chain m\u1edbi ho\u1eb7c l\u1edbp \u0111\u1ed3ng thu\u1eadn Proof of Stake. T\u1ea5t c\u1ea3 c\u00e1c tr\u00ecnh x\u00e1c th\u1ef1c \u0111\u1ea1i di\u1ec7n cho c\u1ed5 ph\u1ea7n l\u00e0 32 ETH tr\u00ean Beacon Chain. T\u00ednh \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i, Beacon Chain c\u00f3 kho\u1ea3ng 222.052 tr\u00ecnh x\u00e1c nh\u1eadn. \u0110i\u1ec1u th\u00fa v\u1ecb l\u00e0 chu\u1ed7i Proof of Work c\u0169ng ho\u1ea1t \u0111\u1ed9ng c\u00f9ng v\u1edbi chu\u1ed7i PoS m\u1edbi m\u00e0 kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 \u1ea3nh h\u01b0\u1edfng n\u00e0o v\u1ec1 t\u00ednh li\u00ean t\u1ee5c c\u1ee7a d\u1eef li\u1ec7u.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hop_nhat_chuoi_bao_hieu_voi_Mainnet\"><\/span><span style=\"font-weight: 400;\">H\u1ee3p nh\u1ea5t chu\u1ed7i b\u00e1o hi\u1ec7u v\u1edbi Mainnet<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Giai \u0111o\u1ea1n ti\u1ebfp theo trong l\u1ed9 tr\u00ecnh Ethereum 2.0 s\u1ebd li\u00ean quan \u0111\u1ebfn vi\u1ec7c h\u1ee3p nh\u1ea5t Beacon Chain v\u1edbi Ethereum Mainnet. S\u1ef1 h\u1ee3p nh\u1ea5t th\u1ef1c s\u1ef1 cung c\u1ea5p m\u1ed9t c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00e1ng tin c\u1eady cho &#8220;Li\u1ec7u Ethereum 2.0 c\u00f3 ra m\u1eaft kh\u00f4ng?&#8221; v\u1edbi k\u1ebf ho\u1ea1ch t\u01b0\u01a1ng t\u1ef1 v\u00e0o \u0111\u1ea7u n\u0103m 2022. Sau khi h\u1ee3p nh\u1ea5t, c\u00e1c giao d\u1ecbch v\u00e0 \u1ee9ng d\u1ee5ng s\u1ebd ti\u1ebfp t\u1ee5c nh\u01b0 b\u00ecnh th\u01b0\u1eddng.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Shard_Chains-2\"><\/span><span style=\"font-weight: 400;\">Shard Chains<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Giai \u0111o\u1ea1n cu\u1ed1i c\u00f9ng trong s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a Ethereum 2.0 s\u1ebd bao g\u1ed3m giai \u0111o\u1ea1n kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng. Trong khi Beacon Chain v\u00e0 Merge c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh b\u1ec1n v\u1eefng v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c, c\u00e1c chu\u1ed7i ph\u00e2n \u0111o\u1ea1n s\u1ebd gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng. Hi\u1ec7n t\u1ea1i, l\u1ed9 tr\u00ecnh cho ETH 2.0 g\u1ee3i \u00fd kh\u1ea3 n\u0103ng kh\u1edfi ch\u1ea1y giai \u0111o\u1ea1n kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0o cu\u1ed1i n\u0103m 2022. Chu\u1ed7i ph\u00e2n \u0111o\u1ea1n s\u1ebd cung c\u1ea5p nh\u1eefng c\u1ea3i ti\u1ebfn b\u1ec1n v\u1eefng v\u1ec1 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef v\u00e0 truy c\u1eadp d\u1eef li\u1ec7u. Ngo\u00e0i ra, l\u1ed9 tr\u00ecnh kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cho ETH 2.0 c\u0169ng t\u1eadp trung v\u00e0o c\u00e1c gi\u1ea3i ph\u00e1p l\u1edbp 2 nh\u01b0 cu\u1ed9n l\u00ean.<\/span><\/p>\n<figure id=\"attachment_16689\" aria-describedby=\"caption-attachment-16689\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-16689\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54.jpg\" alt=\"Ethereum 2.0, Layer 2, Blockchain\" width=\"900\" height=\"506\" srcset=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54.jpg 1668w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54-300x169.jpg 300w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54-1024x576.jpg 1024w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54-150x84.jpg 150w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54-768x432.jpg 768w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54-1536x864.jpg 1536w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54-450x253.jpg 450w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-54-1200x675.jpg 1200w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-16689\" class=\"wp-caption-text\">L\u1ed9 tr\u00ecnh Ethereum 2.0<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"4_Loi_ich_cua_Ethereum_20\"><\/span><span style=\"font-weight: 400;\">4. L\u1ee3i \u00edch c\u1ee7a Ethereum 2.0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">M\u1ed9t \u0111i\u1ec3m n\u1ed5i b\u1eadt quan tr\u1ecdng kh\u00e1c trong b\u1ea5t k\u1ef3 ph\u1ea7n gi\u1edbi thi\u1ec7u n\u00e0o v\u1ec1 Ethereum 2.0 \u0111\u1ec1u \u0111\u1ec1 c\u1eadp \u0111\u1ebfn nh\u1eefng \u01b0u \u0111i\u1ec3m. Ethereum s\u1ebd tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0o sau khi ho\u00e0n th\u00e0nh n\u00e2ng c\u1ea5p ETH 2.0? C\u00e1c l\u1ee3i \u00edch n\u1ed5i b\u1eadt nh\u1ea5t c\u1ee7a ETH 2.0 bao g\u1ed3m c\u00e1c c\u1ea3i ti\u1ebfn v\u1ec1 th\u00f4ng l\u01b0\u1ee3ng, b\u1ea3o m\u1eadt v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng c\u1ee7a m\u1ea1ng ch\u00ednh Ethereum. M\u1eb7t kh\u00e1c, n\u00f3 c\u0169ng t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho d\u1eef li\u1ec7u li\u00ean t\u1ee5c v\u00ec ETH 2.0 s\u1ebd kh\u00f4ng lo\u1ea1i b\u1ecf c\u00e1c b\u1ea3n ghi giao d\u1ecbch, quy\u1ec1n s\u1edf h\u1eefu t\u00e0i s\u1ea3n ho\u1eb7c l\u1ecbch s\u1eed d\u1eef li\u1ec7u tr\u00ean chu\u1ed7i kh\u1ed1i Ethereum. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng l\u1ee3i th\u1ebf \u0111\u00e1ng ch\u00fa \u00fd v\u1ec1 gi\u00e1 tr\u1ecb c\u1ee7a ETH 2.0.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1ed9t trong nh\u1eefng \u0111\u1ec1 c\u1eadp \u0111\u00e1ng ch\u00fa \u00fd nh\u1ea5t trong tin t\u1ee9c Ethereum 2.0 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn nh\u1eefng c\u1ea3i ti\u1ebfn v\u1ec1 hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng. V\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a Proof of Stake, chu\u1ed7i kh\u1ed1i Ethereum c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng t\u1ed1t h\u01a1n 99,95% trong khi v\u1eabn \u0111\u1ea3m b\u1ea3o an to\u00e0n cho m\u1ea1ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L\u1ee3i \u00edch n\u1ed5i b\u1eadt ti\u1ebfp theo c\u1ee7a ETH 2.0 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ph\u1ea1m vi ph\u00e2n quy\u1ec1n t\u1ed1t h\u01a1n v\u1edbi nhi\u1ec1u tr\u00ecnh x\u00e1c nh\u1eadn h\u01a1n. S\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ee7a Proof of Stake \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u1ea3m c\u00e1c r\u00e0o c\u1ea3n k\u1ef9 thu\u1eadt cho c\u00e1c c\u00e1 nh\u00e2n tham gia v\u00e0o m\u1ea1ng Ethereum 2.0.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">ETH 2.0 c\u0169ng cung c\u1ea5p s\u1ef1 \u0111\u1ea3m b\u1ea3o an ninh t\u1ed1t h\u01a1n v\u1edbi chi ph\u00ed cao cho vi\u1ec7c x\u00e2m ph\u1ea1m m\u1ea1ng. Ngo\u00e0i ra, s\u1ef1 \u0111\u1ed3ng thu\u1eadn c\u1ee7a Proof of Stake cho ph\u00e9p x\u00e1c \u0111\u1ecbnh d\u1ec5 d\u00e0ng h\u01a1n 51% nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng b\u1eb1ng \u0111\u1ecba ch\u1ec9 x\u00e1c th\u1ef1c c\u1ee7a h\u1ecd. K\u1ebft qu\u1ea3 l\u00e0, m\u1ea1ng c\u00f3 th\u1ec3 ph\u00e2n t\u00e1ch c\u00e1c t\u00e1c nh\u00e2n \u0111\u1ed9c h\u1ea1i trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra cu\u1ed9c t\u1ea5n c\u00f4ng tr\u00ean m\u1ea1ng.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"5_Da_vu_tru_layer_2\"><\/span><span style=\"font-weight: 400;\">5. \u0110a v\u0169 tr\u1ee5 layer 2<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.fiahub.com\/blog\/tong-quan-ve-cac-giao-thuc-layer-2-tren-ethereum\/\">Layer 2<\/a> (L2) l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef chung \u0111\u1ec3 m\u00f4 t\u1ea3 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng quy m\u00f4 Ethereum c\u1ee5 th\u1ec3. L\u1edbp 2 l\u00e0 m\u1ed9t blockchain ri\u00eang bi\u1ec7t m\u1edf r\u1ed9ng Ethereum v\u00e0 k\u1ebf th\u1eeba c\u00e1c \u0111\u1ea3m b\u1ea3o an ninh c\u1ee7a Ethereum.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Loi_ich_cua_Layer_2\"><\/span><span style=\"font-weight: 400;\">L\u1ee3i \u00edch c\u1ee7a Layer 2<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\"><strong>Ph\u00ed th\u1ea5p h\u01a1n<br \/>\n<\/strong><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p nhi\u1ec1u giao d\u1ecbch ngo\u00e0i chu\u1ed7i th\u00e0nh m\u1ed9t giao d\u1ecbch l\u1edbp 1 duy nh\u1ea5t, ph\u00ed giao d\u1ecbch \u0111\u01b0\u1ee3c gi\u1ea3m \u0111\u00e1ng k\u1ec3, khi\u1ebfn Ethereum d\u1ec5 ti\u1ebfp c\u1eadn h\u01a1n cho t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><strong>Duy tr\u00ec b\u1ea3o m\u1eadt<br \/>\n<\/strong><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">C\u00e1c blockchain l\u1edbp 2 gi\u1ea3i quy\u1ebft c\u00e1c giao d\u1ecbch c\u1ee7a h\u1ecd tr\u00ean Ethereum Mainnet, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng h\u01b0\u1edfng l\u1ee3i t\u1eeb s\u1ef1 b\u1ea3o m\u1eadt c\u1ee7a m\u1ea1ng Ethereum.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><strong>M\u1edf r\u1ed9ng c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<br \/>\n<\/strong><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">V\u1edbi giao d\u1ecbch cao h\u01a1n m\u1ed7i gi\u00e2y, ph\u00ed th\u1ea5p h\u01a1n v\u00e0 c\u00f4ng ngh\u1ec7 m\u1edbi, c\u00e1c d\u1ef1 \u00e1n s\u1ebd m\u1edf r\u1ed9ng sang c\u00e1c \u1ee9ng d\u1ee5ng m\u1edbi v\u1edbi tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Layer_2_hoat_dong_nhu_the_nao\"><\/span><span style=\"font-weight: 400;\">Layer 2 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Nh\u01b0 ch\u00fang t\u00f4i \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean, L\u1edbp 2 l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef chung cho c\u00e1c gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng quy m\u00f4 Ethereum x\u1eed l\u00fd c\u00e1c giao d\u1ecbch ngo\u00e0i Ethereum l\u1edbp 1 trong khi v\u1eabn t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c t\u00ednh b\u1ea3o m\u1eadt phi t\u1eadp trung m\u1ea1nh m\u1ebd c\u1ee7a l\u1edbp Ethereum. L\u1edbp 2 l\u00e0 m\u1ed9t blockchain ri\u00eang bi\u1ec7t m\u1edf r\u1ed9ng Ethereum. N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1ed9t chu\u1ed7i kh\u1ed1i l\u1edbp 2 th\u01b0\u1eddng xuy\u00ean giao ti\u1ebfp v\u1edbi Ethereum (b\u1eb1ng c\u00e1ch g\u1eedi c\u00e1c g\u00f3i giao d\u1ecbch) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u00f3 c\u00f3 c\u00e1c \u0111\u1ea3m b\u1ea3o v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 ph\u00e2n quy\u1ec1n t\u01b0\u01a1ng t\u1ef1. T\u1ea5t c\u1ea3 \u0111i\u1ec1u n\u00e0y kh\u00f4ng y\u00eau c\u1ea7u thay \u0111\u1ed5i \u0111\u1ed1i v\u1edbi giao th\u1ee9c l\u1edbp 1 (Ethereum). \u0110i\u1ec1u n\u00e0y cho ph\u00e9p l\u1edbp 1 x\u1eed l\u00fd b\u1ea3o m\u1eadt, t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a d\u1eef li\u1ec7u v\u00e0 ph\u00e2n quy\u1ec1n, trong khi l\u1edbp 2 x\u1eed l\u00fd vi\u1ec7c m\u1edf r\u1ed9ng quy m\u00f4. L\u1edbp 2 lo\u1ea1i b\u1ecf g\u00e1nh n\u1eb7ng giao d\u1ecbch kh\u1ecfi l\u1edbp 1 v\u00e0 \u0111\u0103ng c\u00e1c b\u1eb1ng ch\u1ee9ng ho\u00e0n thi\u1ec7n tr\u1edf l\u1ea1i l\u1edbp 1. B\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf t\u1ea3i giao d\u1ecbch n\u00e0y kh\u1ecfi l\u1edbp 1, l\u1edbp c\u01a1 s\u1edf tr\u1edf n\u00ean \u00edt t\u1eafc ngh\u1ebdn h\u01a1n v\u00e0 m\u1ecdi th\u1ee9 tr\u1edf n\u00ean d\u1ec5 m\u1edf r\u1ed9ng h\u01a1n.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Rollups\"><\/span><span style=\"font-weight: 400;\">Rollups<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Rollups hi\u1ec7n l\u00e0 gi\u1ea3i ph\u00e1p l\u1edbp 2 \u0111\u01b0\u1ee3c \u01b0a th\u00edch \u0111\u1ec3 m\u1edf r\u1ed9ng Ethereum. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Rollups, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 gi\u1ea3m ph\u00ed gas l\u00ean t\u1edbi 100 l\u1ea7n so v\u1edbi l\u1edbp 1.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Rollups (ho\u1eb7c &#8216;roll up&#8217;) h\u00e0ng tr\u0103m giao d\u1ecbch th\u00e0nh m\u1ed9t giao d\u1ecbch duy nh\u1ea5t tr\u00ean l\u1edbp 1. \u0110i\u1ec1u n\u00e0y ph\u00e2n b\u1ed5 ph\u00ed giao d\u1ecbch L1 cho t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi trong Rollup, gi\u00fap cho m\u1ed7i ng\u01b0\u1eddi d\u00f9ng r\u1ebb h\u01a1n. C\u00e1c giao d\u1ecbch Rollup \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u00ean ngo\u00e0i l\u1edbp 1 nh\u01b0ng d\u1eef li\u1ec7u giao d\u1ecbch \u0111\u01b0\u1ee3c \u0111\u0103ng l\u00ean l\u1edbp 1. B\u1eb1ng c\u00e1ch \u0111\u0103ng d\u1eef li\u1ec7u giao d\u1ecbch l\u00ean l\u1edbp 1, c\u00e1c giao d\u1ecbch Rollup k\u1ebf th\u1eeba t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a Ethereum. C\u00f3 hai c\u00e1ch ti\u1ebfp c\u1eadn kh\u00e1c nhau v\u1edbi Rollups: Optimistic v\u00e0 Zero-Knowledge &#8211; ch\u00fang ch\u1ee7 y\u1ebfu kh\u00e1c nhau v\u1ec1 c\u00e1ch d\u1eef li\u1ec7u giao d\u1ecbch n\u00e0y \u0111\u01b0\u1ee3c \u0111\u0103ng l\u00ean L1.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><strong>Optimistic Rollups<br \/>\n<\/strong><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">Optimistic Rollups hay &#8216;Optimistic&#8217; theo ngh\u0129a l\u00e0 c\u00e1c giao d\u1ecbch \u0111\u01b0\u1ee3c cho l\u00e0 h\u1ee3p l\u1ec7, nh\u01b0ng c\u00f3 th\u1ec3 b\u1ecb th\u00e1ch th\u1ee9c n\u1ebfu c\u1ea7n thi\u1ebft. N\u1ebfu nghi ng\u1edd m\u1ed9t giao d\u1ecbch kh\u00f4ng h\u1ee3p l\u1ec7, m\u1ed9t b\u1eb1ng ch\u1ee9ng l\u1ed7i s\u1ebd \u0111\u01b0\u1ee3c ch\u1ea1y \u0111\u1ec3 xem li\u1ec7u \u0111i\u1ec1u n\u00e0y c\u00f3 x\u1ea3y ra hay kh\u00f4ng.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><strong>Zero-Knowledge Rollups<\/strong><br \/>\n<\/span><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">Zero-knowledge Rollups s\u1eed d\u1ee5ng c\u00e1c b\u1eb1ng ch\u1ee9ng h\u1ee3p l\u1ec7 trong \u0111\u00f3 c\u00e1c giao d\u1ecbch \u0111\u01b0\u1ee3c t\u00ednh ngo\u00e0i chu\u1ed7i v\u00e0 sau \u0111\u00f3 d\u1eef li\u1ec7u n\u00e9n \u0111\u01b0\u1ee3c cung c\u1ea5p cho Ethereum Mainnet nh\u01b0 m\u1ed9t b\u1eb1ng ch\u1ee9ng v\u1ec1 t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a ch\u00fang.<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_16688\" aria-describedby=\"caption-attachment-16688\" style=\"width: 1280px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-16688\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-53.jpg\" alt=\"Ethereum 2.0, Layer 2.0, Blockchain\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-53.jpg 1280w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-53-300x169.jpg 300w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-53-1024x576.jpg 1024w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-53-150x84.jpg 150w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-53-768x432.jpg 768w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-53-450x253.jpg 450w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/a1-53-1200x675.jpg 1200w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><figcaption id=\"caption-attachment-16688\" class=\"wp-caption-text\">L\u00fd gi\u1ea3i nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Zero-Knowledge Rollups<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Su_dung_Layer_2\"><\/span><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng Layer 2<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">B\u00e2y gi\u1edd b\u1ea1n \u0111\u00e3 hi\u1ec3u t\u1ea1i sao Layer 2 t\u1ed3n t\u1ea1i v\u00e0 n\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o, h\u00e3y c\u00f9ng b\u1ea1n thi\u1ebft l\u1eadp v\u00e0 ch\u1ea1y!<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Lop_tong_quat_2s\"><\/span><span style=\"font-weight: 400;\">L\u1edbp t\u1ed5ng qu\u00e1t 2s<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">L\u1edbp 2 t\u1ed5ng qu\u00e1t ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng nh\u01b0 Ethereum &#8211; nh\u01b0ng r\u1ebb h\u01a1n. B\u1ea5t c\u1ee9 \u0111i\u1ec1u g\u00ec b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m tr\u00ean Ethereum l\u1edbp 1, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 l\u00e0m tr\u00ean l\u1edbp 2. Nhi\u1ec1u dapp \u0111\u00e3 b\u1eaft \u0111\u1ea7u chuy\u1ec3n sang c\u00e1c m\u1ea1ng n\u00e0y ho\u1eb7c \u0111\u00e3 b\u1ecf qua Mainnet ho\u00e0n to\u00e0n \u0111\u1ec3 tri\u1ec3n khai th\u1eb3ng tr\u00ean l\u1edbp 2.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><strong>Arbitrum One<\/strong><br \/>\n<\/span><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">Arbitrum l\u00e0 m\u1ed9t Optimistic Rollups nh\u1eb1m m\u1ee5c \u0111\u00edch t\u1ea1o c\u1ea3m gi\u00e1c gi\u1ed1ng h\u1ec7t nh\u01b0 t\u01b0\u01a1ng t\u00e1c v\u1edbi Ethereum, nh\u01b0ng v\u1edbi c\u00e1c giao d\u1ecbch c\u00f3 chi ph\u00ed ch\u1ec9 b\u1eb1ng m\u1ed9t ph\u1ea7n nh\u1ecf so v\u1edbi nh\u1eefng g\u00ec ch\u00fang th\u1ef1c hi\u1ec7n tr\u00ean L1.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><strong>Optimism<\/strong><br \/>\n<\/span><span style=\"font-weight: 400;\">Optimistic Ethereum l\u00e0 m\u1ed9t chu\u1ed7i t\u1ed5ng h\u1ee3p L\u1ea1c quan t\u01b0\u01a1ng \u0111\u01b0\u01a1ng EVM. N\u00f3 nh\u1eb1m m\u1ee5c \u0111\u00edch nhanh ch\u00f3ng, \u0111\u01a1n gi\u1ea3n v\u00e0 an to\u00e0n.<em>\u00a0<\/em><\/span><em><span style=\"font-size: 14px; color: var(--c-contrast-800);\">L\u01b0u \u00fd: C\u00e1c b\u1eb1ng ch\u1ee9ng l\u1ed7i trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n<\/span><\/em><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><strong>Boba Network<\/strong><br \/>\n<\/span><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">Boba l\u00e0 m\u1ed9t Optimistic Rollups ban \u0111\u1ea7u \u0111\u01b0\u1ee3c t\u00e1ch ra t\u1eeb Optimism, l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng quy m\u00f4 nh\u1eb1m m\u1ee5c \u0111\u00edch gi\u1ea3m ph\u00ed gas, c\u1ea3i thi\u1ec7n th\u00f4ng l\u01b0\u1ee3ng giao d\u1ecbch v\u00e0 m\u1edf r\u1ed9ng kh\u1ea3 n\u0103ng c\u1ee7a c\u00e1c h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh.\u00a0<\/span><em><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">L\u01b0u \u00fd: X\u00e1c th\u1ef1c tr\u1ea1ng th\u00e1i \u0111ang ph\u00e1t tri\u1ec3n<\/span><\/em><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Ung_dung_cua_Layer_2\"><\/span><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng c\u1ee7a Layer 2<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Layer 2 d\u00e0nh ri\u00eang cho \u1ee9ng d\u1ee5ng l\u00e0 c\u00e1c d\u1ef1 \u00e1n chuy\u00ean t\u1ed1i \u01b0u h\u00f3a cho kh\u00f4ng gian \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3, mang l\u1ea1i hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><strong>dYdX<\/strong><br \/>\n<\/span><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">dYdX nh\u1eb1m m\u1ee5c \u0111\u00edch x\u00e2y d\u1ef1ng m\u1ed9t s\u00e0n giao d\u1ecbch m\u1ea1nh m\u1ebd v\u00e0 chuy\u00ean nghi\u1ec7p \u0111\u1ec3 giao d\u1ecbch t\u00e0i s\u1ea3n ti\u1ec1n \u0111i\u1ec7n t\u1eed, n\u01a1i ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 th\u1ef1c s\u1ef1 s\u1edf h\u1eefu c\u00e1c giao d\u1ecbch c\u1ee7a h\u1ecd v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 ch\u00ednh s\u00e0n giao d\u1ecbch.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><strong>Loopring<\/strong><br \/>\n<\/span><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">Gi\u1ea3i ph\u00e1p zkRollup L2 c\u1ee7a Loopring nh\u1eb1m cung c\u1ea5p c\u00e1c \u0111\u1ea3m b\u1ea3o b\u1ea3o m\u1eadt t\u01b0\u01a1ng t\u1ef1 nh\u01b0 m\u1ea1ng ch\u00ednh Ethereum, v\u1edbi kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng l\u1edbn: th\u00f4ng l\u01b0\u1ee3ng t\u0103ng g\u1ea5p 1000 l\u1ea7n v\u00e0 chi ph\u00ed gi\u1ea3m xu\u1ed1ng ch\u1ec9 c\u00f2n 0,1% so v\u1edbi L1.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><strong>zkSync<\/strong><br \/>\n<\/span><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">zkSync l\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng cu\u1ed9n l\u00ean zk l\u1ea5y ng\u01b0\u1eddi d\u00f9ng l\u00e0m trung t\u00e2m t\u1eeb Matter Labs. N\u00f3 l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng quy m\u00f4 cho Ethereum, \u0111\u00e3 t\u1ed3n t\u1ea1i tr\u00ean m\u1ea1ng ch\u00ednh Ethereum. N\u00f3 h\u1ed7 tr\u1ee3 thanh to\u00e1n, ho\u00e1n \u0111\u1ed5i m\u00e3 th\u00f4ng b\u00e1o v\u00e0 \u0111\u00fac NFT.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><strong>ZKSpace<\/strong><br \/>\n<\/span><span style=\"font-size: 14px; color: var(--c-contrast-800); background: var(--c-contrast-0);\">N\u1ec1n t\u1ea3ng ZKSpace bao g\u1ed3m ba ph\u1ea7n ch\u00ednh: L\u1edbp 2 AMM DEX s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 ZK-Rollups \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ZKSwap, d\u1ecbch v\u1ee5 thanh to\u00e1n c\u00f3 t\u00ean ZKSquare v\u00e0 th\u1ecb tr\u01b0\u1eddng NFT c\u00f3 t\u00ean ZKSea.<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Luu_y_ve_sidechains_validium_va_cac_blockchains_thay_the\"><\/span><span style=\"font-weight: 400;\">L\u01b0u \u00fd v\u1ec1 sidechains, validium v\u00e0 c\u00e1c blockchains thay th\u1ebf<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Sidechains v\u00e0 validium l\u00e0 c\u00e1c blockchain cho ph\u00e9p c\u00e1c t\u00e0i s\u1ea3n t\u1eeb Ethereum \u0111\u01b0\u1ee3c b\u1eafc c\u1ea7u v\u00e0 s\u1eed d\u1ee5ng tr\u00ean m\u1ed9t blockchain kh\u00e1c. Sidechains v\u00e0 c\u00e1c h\u1ee3p l\u1ec7 ch\u1ea1y song song v\u1edbi Ethereum v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi Ethereum th\u00f4ng qua c\u00e1c c\u1ea7u n\u1ed1i, nh\u01b0ng ch\u00fang kh\u00f4ng l\u1ea5y \u0111\u01b0\u1ee3c t\u00ednh b\u1ea3o m\u1eadt ho\u1eb7c t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a d\u1eef li\u1ec7u t\u1eeb Ethereum.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u1ea3 hai \u0111\u1ec1u c\u00f3 quy m\u00f4 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 layer 2 &#8211; ch\u00fang cung c\u1ea5p ph\u00ed giao d\u1ecbch th\u1ea5p h\u01a1n v\u00e0 th\u00f4ng l\u01b0\u1ee3ng giao d\u1ecbch cao h\u01a1n &#8211; nh\u01b0ng c\u00f3 c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u1ec1 \u0111\u1ed9 tin c\u1eady kh\u00e1c nhau.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1ed9t s\u1ed1 blockchain layer 1 c\u00f3 th\u00f4ng l\u01b0\u1ee3ng cao h\u01a1n v\u00e0 ph\u00ed giao d\u1ecbch th\u1ea5p h\u01a1n Ethereum. C\u00e1c l\u1edbp 1 thay th\u1ebf n\u00e0y \u0111\u00e3 ph\u1ea3i hy sinh v\u1ec1 b\u1ea3o m\u1eadt ho\u1eb7c ph\u00e2n quy\u1ec1n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c giao d\u1ecbch cao h\u01a1n m\u1ed7i gi\u00e2y v\u00e0 ph\u00ed giao d\u1ecbch th\u1ea5p h\u01a1n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">H\u1ec7 sinh th\u00e1i Ethereum \u0111\u01b0\u1ee3c li\u00ean k\u1ebft ch\u1eafc ch\u1eafn r\u1eb1ng vi\u1ec7c m\u1edf r\u1ed9ng quy m\u00f4 layer 2 l\u00e0 c\u00e1ch duy nh\u1ea5t \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 nan gi\u1ea3i v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng trong khi v\u1eabn phi t\u1eadp trung v\u00e0 an to\u00e0n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u1eady l\u00e0 ch\u00fang ta \u0111\u00e3 c\u00f9ng nhau t\u00ecm hi\u1ec3u t\u1ed5ng quan v\u1ec1 Ethereum 2.0 v\u00e0 \u0111a v\u0169 tr\u1ee5 Layer 2. C\u1ea3m \u01a1n s\u1ef1 theo d\u00f5i v\u00e0 \u0111\u00f3n \u0111\u1ecdc c\u1ee7a c\u00e1c b\u1ea1n. Mong r\u1eb1ng b\u00e0i vi\u1ebft \u0111\u00e3 gi\u00fap c\u00e1c b\u1ea1n hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y. Sau c\u00f9ng, ch\u00fac c\u00e1c b\u1ea1n \u0111\u1ea7u t\u01b0 th\u00e0nh c\u00f4ng c\u00f9ng th\u1ecb tr\u01b0\u1eddng crypto v\u00e0 \u0111\u1eebng qu\u00ean, m\u1ecdi th\u1eafc m\u1eafc vui l\u00f2ng li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 Support c\u1ee7a <a href=\"https:\/\/www.fiahub.com\">Fiahub<\/a> 24\/7.\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. T\u1ed5ng quan v\u1ec1 Ethereum 2.0 S\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a Ethereum v\u00e0o n\u0103m 2015 \u0111\u00e3 m\u1edf ra c\u00e1nh c\u1eeda cho nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i m\u1edbi trong kh\u00f4ng gian ti\u1ec1n \u0111i\u1ec7n t\u1eed, th\u1ef1c t\u1ebf l\u00e0 t\u1ea5t c\u1ea3 v\u1ec1 Bitcoin cho \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m \u0111\u00f3. Vitalik Buterin v\u00e0 nh\u00f3m c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a anh \u1ea5y \u0111\u00e3 t\u1ea1o<\/p>\n","protected":false},"author":24,"featured_media":16690,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21849],"tags":[2740,2676,10627,17761],"class_list":{"0":"post-16685","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-phan-tich-nhan-dinh","8":"tag-blockchain","9":"tag-ethereum-eth","10":"tag-ethereum-2-0","11":"tag-layer-2"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Ethereum 2.0 v\u00e0 \u0111a v\u0169 tr\u1ee5 Layer 2 - Fiahub<\/title>\n<meta name=\"description\" content=\"B\u00e0i vi\u1ebft h\u00f4m nay Fiahub s\u1ebd c\u00f9ng b\u1ea1n gi\u1ea3i \u0111\u00e1p v\u1ec1 Ethereum 2.0 v\u00e0 \u0111a v\u0169 tr\u1ee5 Layer 2 nh\u00e9!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ethereum 2.0 v\u00e0 \u0111a v\u0169 tr\u1ee5 Layer 2\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i vi\u1ebft h\u00f4m nay Fiahub s\u1ebd c\u00f9ng b\u1ea1n gi\u1ea3i \u0111\u00e1p v\u1ec1 Ethereum 2.0 v\u00e0 \u0111a v\u0169 tr\u1ee5 Layer 2 nh\u00e9!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fiahub.com\/blog\/ethereum-2-0-va-da-vu-tru-layer-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Fiahub Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/FiahubVN\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-05-31T03:05:16+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-06T03:36:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2022\/05\/Fiahub_Kien-thuc-chuyen-sau_ETH20.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"576\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Le Hoang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@FIAHUBVN\" \/>\n<meta name=\"twitter:site\" content=\"@FIAHUBVN\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Le Hoang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"21 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/ethereum-2-0-va-da-vu-tru-layer-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/ethereum-2-0-va-da-vu-tru-layer-2\\\/\"},\"author\":{\"name\":\"Le Hoang\",\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/#\\\/schema\\\/person\\\/438ca2054bd04d8ef374b9dd54ed3418\"},\"headline\":\"Ethereum 2.0 v\u00e0 \u0111a v\u0169 tr\u1ee5 Layer 2\",\"datePublished\":\"2022-05-31T03:05:16+00:00\",\"dateModified\":\"2025-03-06T03:36:24+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/ethereum-2-0-va-da-vu-tru-layer-2\\\/\"},\"wordCount\":4282,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/ethereum-2-0-va-da-vu-tru-layer-2\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/Fiahub_Kien-thuc-chuyen-sau_ETH20.png\",\"keywords\":[\"Blockchain\",\"ethereum (eth)\",\"Ethereum 2.0\",\"layer 2\"],\"articleSection\":[\"Nh\u1eadn \u0111\u1ecbnh th\u1ecb tr\u01b0\u1eddng\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/ethereum-2-0-va-da-vu-tru-layer-2\\\/\",\"url\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/ethereum-2-0-va-da-vu-tru-layer-2\\\/\",\"name\":\"Ethereum 2.0 v\u00e0 \u0111a v\u0169 tr\u1ee5 Layer 2 - 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