{"id":6289,"date":"2026-03-03T06:52:26","date_gmt":"2026-03-03T06:52:26","guid":{"rendered":"https:\/\/onfa.us\/?p=6289"},"modified":"2026-03-03T06:57:12","modified_gmt":"2026-03-03T06:57:12","slug":"bi-quyet-cach-kiem-tra-vi-eth-tren-blockchain","status":"publish","type":"post","link":"https:\/\/onfa.us\/vi\/bi-quyet-cach-kiem-tra-vi-eth-tren-blockchain\/","title":{"rendered":"B\u00ed Quy\u1ebft C\u00e1ch Ki\u1ec3m Tra V\u00ed ETH Tr\u00ean Blockchain"},"content":{"rendered":"\n

\u0110\u1ec3 giao d\u1ecbch an to\u00e0n tr\u00ean Ethereum, vi\u1ec7c hi\u1ec3u \u0111\u00fang<\/span> c\u00e1ch ki\u1ec3m tra v\u00ed ETH<\/b> v\u00f4 c\u00f9ng quan tr\u1ecdng. B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra s\u1ed1 d\u01b0, l\u1ecbch s\u1eed giao d\u1ecbch v\u00e0 token ch\u1ec9 trong v\u00e0i gi\u00e2y. Hi\u1ec3u \u0111\u00fang c\u00e1ch ki\u1ec3m tra v\u00ed ETH gi\u00fap b\u1ea1n tr\u00e1nh r\u1ee7i ro, ph\u00e1t hi\u1ec7n giao d\u1ecbch b\u1ea5t th\u01b0\u1eddng v\u00e0 \u0111\u1ea3m b\u1ea3o v\u00ed kh\u00f4ng b\u1ecb hack. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn to\u00e0n b\u1ed9 quy tr\u00ecnh ki\u1ec3m tra v\u00ed ETH, \u00e1p d\u1ee5ng cho m\u1ecdi lo\u1ea1i v\u00ed.\u00a0<\/span><\/p>\n

\"Cac-tinh-nang-chinh-cua-Etherscan\"
C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Etherscan<\/figcaption><\/figure>\n

Gi\u1edbi thi\u1ec7u Etherscan\u00a0<\/b><\/h2>\n

Etherscan l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao quan tr\u1ecdng?\u00a0<\/b><\/h3>\n

Etherscan l\u00e0 tr\u00ecnh kh\u00e1m ph\u00e1 blockchain l\u1edbn nh\u1ea5t d\u00e0nh cho Ethereum. Khi n\u1eafm \u0111\u01b0\u1ee3c<\/span> c\u00e1ch ki\u1ec3m tra v\u00ed ETH <\/b>b\u1eb1ng Etherscan, b\u1ea1n c\u00f3 th\u1ec3 xem m\u1ecdi th\u00f4ng tin nh\u01b0 s\u1ed1 d\u01b0 v\u00ed, token, l\u1ecbch s\u1eed giao d\u1ecbch v\u00e0 m\u1ee9c \u0111\u1ed9 an to\u00e0n c\u1ee7a v\u00ed. C\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu n\u1ebfu b\u1ea1n c\u1ea7n ki\u1ec3m tra v\u00ed ETH tr\u00ean blockchain m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/span><\/p>\n

C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Etherscan\u00a0<\/b><\/h3>\n

Etherscan h\u1ed7 tr\u1ee3 tra c\u1ee9u \u0111\u1ecba ch\u1ec9 v\u00ed ETH, theo d\u00f5i l\u1ecbch s\u1eed giao d\u1ecbch ETH, xem ph\u00ed gas v\u00e0 ki\u1ec3m tra token ERC20 trong v\u00ed. Ngo\u00e0i ra, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra v\u00ed ETH b\u1ecb hack ho\u1eb7c theo d\u00f5i nh\u01b0ng v\u00ed l\u1edbn. \u0110\u00e2y l\u00e0 c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu n\u1ebfu b\u1ea1n c\u1ea7n ki\u1ec3m tra v\u00ed ETH tr\u00ean blockchain m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.\u00a0<\/span><\/p>\n

Tra c\u1ee9u giao d\u1ecbch (Transaction Lookup)<\/strong><\/h4>\n
    \n
  • Ki\u1ec3m tra <\/span>TxID \/ Hash<\/b><\/li>\n
  • Xem tr\u1ea1ng th\u00e1i giao d\u1ecbch: <\/span>Pending \u2013 Success \u2013 Failed<\/span><\/i><\/li>\n
  • Th\u1eddi gian, block, ph\u00ed gas, \u0111\u1ecba ch\u1ec9 g\u1eedi \u2013 nh\u1eadn<\/span><\/li>\n<\/ul>\n

    Ki\u1ec3m tra v\u00ed (Address Lookup)<\/strong><\/h4>\n
      \n
    • Xem <\/span>s\u1ed1 d\u01b0 ETH<\/b><\/li>\n
    • Danh s\u00e1ch token ERC-20, NFT (ERC-721 \/ ERC-1155)<\/span><\/li>\n
    • L\u1ecbch s\u1eed giao d\u1ecbch c\u1ee7a v\u00ed<\/span><\/li>\n<\/ul>\n

      Tra c\u1ee9u token & NFT<\/strong><\/h4>\n
        \n
      • Th\u00f4ng tin token:<\/span>\n
          \n
        • T\u00ean, k\u00fd hi\u1ec7u, total supply<\/span><\/li>\n
        • Holder, transfer history<\/span> <\/li>\n<\/ul>\n<\/li>\n
        • Ki\u1ec3m tra NFT \u0111ang s\u1edf h\u1eefu trong v\u00ed<\/span><\/li>\n<\/ul>\n

          Smart Contract<\/strong><\/h4>\n
            \n
          • Xem <\/span>m\u00e3 ngu\u1ed3n smart contract<\/b> (n\u1ebfu \u0111\u00e3 verify)<\/span><\/li>\n
          • Ki\u1ec3m tra & g\u1ecdi h\u00e0m contract (Read \/ Write Contract)<\/span><\/li>\n
          • Ph\u00e2n t\u00edch quy\u1ec1n owner, proxy, upgrade<\/span><\/li>\n<\/ul>\n

            Ph\u00ed gas & t\u00ecnh tr\u1ea1ng m\u1ea1ng<\/strong><\/h4>\n
              \n
            • Theo d\u00f5i <\/span>Gas Tracker<\/b><\/li>\n
            • G\u1ee3i \u00fd gas fee theo th\u1eddi gian th\u1ef1c<\/span><\/li>\n
            • Xem t\u00ecnh tr\u1ea1ng t\u1eafc ngh\u1ebdn m\u1ea1ng Ethereum<\/span><\/li>\n<\/ul>\n

              C\u1ea3nh b\u00e1o & b\u1ea3o m\u1eadt<\/strong><\/h4>\n
                \n
              • \u0110\u00e1nh d\u1ea5u v\u00ed\/token <\/span>c\u00f3 d\u1ea5u hi\u1ec7u scam<\/b><\/li>\n
              • Theo d\u00f5i c\u00e1c giao d\u1ecbch b\u1ea5t th\u01b0\u1eddng<\/span><\/li>\n
              • Ki\u1ec3m tra h\u1ee3p \u0111\u1ed3ng c\u00f3 r\u1ee7i ro hay kh\u00f4ng<\/span><\/li>\n<\/ul>\n

                Th\u1ed1ng k\u00ea & d\u1eef li\u1ec7u m\u1ea1ng<\/strong><\/h4>\n
                  \n
                • S\u1ed1 l\u01b0\u1ee3ng giao d\u1ecbch theo block<\/span><\/li>\n
                • Ho\u1ea1t \u0111\u1ed9ng c\u1ee7a miner \/ validator<\/span><\/li>\n
                • D\u1eef li\u1ec7u on-chain ph\u1ee5c v\u1ee5 ph\u00e2n t\u00edch<\/span><\/li>\n<\/ul>\n

                  T\u00ednh n\u0103ng n\u00e2ng cao<\/strong><\/h4>\n
                    \n
                  1. Theo d\u00f5i v\u00ed (Watch List)<\/span><\/li>\n
                  2. G\u1eafn nh\u00e3n \u0111\u1ecba ch\u1ec9 (Exchange, Whale, Contract\u2026)<\/span><\/li>\n
                  3. API cho developer truy xu\u1ea5t d\u1eef li\u1ec7u blockchain<\/span><\/li>\n<\/ol>\n

                    C\u00e1ch tra c\u1ee9u \u0111\u1ecba ch\u1ec9 v\u00ed ETH Etherscan<\/b><\/h2>\n
                    \"Cach-kiem-tra-vi-ETH-tren-Etherscan\"
                    C\u00e1ch ki\u1ec3m tra v\u00ed ETH tr\u00ean Etherscan<\/figcaption><\/figure>\n

                    D\u00e1n \u0111\u1ecba ch\u1ec9 v\u00ed v\u00e0o \u00f4 t\u00ecm ki\u1ebfm\u00a0<\/b><\/h3>\n

                    B\u01b0\u1edbc \u0111\u1ea7u \u0111\u1ec3 th\u1ef1c hi\u1ec7n<\/span> c\u00e1ch ki\u1ec3m tra v\u00ed ETH<\/b> l\u00e0 l\u1ea5y \u0111\u1ecba ch\u1ec9 v\u00ed Ethereum v\u00e0 d\u00e1n v\u00e0o \u00f4 t\u00ecm ki\u1ebfm Etherscan. B\u1ea1n c\u00f3 th\u1ec3 tra c\u1ee9u \u0111\u1ecba ch\u1ec9 v\u00ed MetaMask, Trust Wallet, SafePal ho\u1eb7c v\u00ed l\u1ea1nh nh\u01b0 Ledger. Vi\u1ec7c tra c\u1ee9u v\u00ed ETH theo \u0111\u1ecba ch\u1ec9 gi\u00fap b\u1ea1n bi\u1ebft to\u00e0n b\u1ed9 ho\u1ea1t \u0111\u1ed9ng l\u1ecbch s\u1eed c\u1ee7a v\u00ed.\u00a0<\/span><\/p>\n

                    Xem s\u1ed1 d\u01b0, l\u1ecbch s\u1eed giao d\u1ecbch v\u00e0 token n\u1eafm gi\u1eef\u00a0<\/b><\/h3>\n

                    Khi \u0111\u00e3 d\u00e1n \u0111\u1ecba ch\u1ec9, b\u1ea1n s\u1ebd th\u1ea5y ngay<\/span> c\u00e1ch xem s\u1ed1 d\u01b0 v\u00ed ETH<\/b>, bao g\u1ed3m ETH v\u00e0 c\u00e1c token ERC20. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 xem l\u1ecbch s\u1eed giao d\u1ecbch ETH \u0111\u1ea7y \u0111\u1ee7 – t\u1eebng giao d\u1ecbch v\u00e0o\/ra, tr\u1ea1ng th\u00e1i, th\u1eddi gian v\u00e0 m\u1ee9c ph\u00ed gas. \u0110\u1ed3ng th\u1eddi, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng<\/span> c\u00e1ch ki\u1ec3m tra token trong v\u00ed ETH<\/b> \u0111\u1ec3 bi\u1ebft v\u00ed \u0111ang gi\u1eef nhi\u1ec1u token kh\u00e1c nhau.\u00a0<\/span><\/p>\n

                    C\u00e1ch t\u00ecm v\u00ed ETH theo \u0111\u1ecba ch\u1ec9\u00a0<\/b><\/h3>\n

                    N\u1ebfu b\u1ea1n ch\u1ec9 c\u00f3 \u0111\u1ecba ch\u1ec9 v\u00ed nh\u01b0ng kh\u00f4ng bi\u1ebft v\u00ed thu\u1ed9c \u1ee9ng d\u1ee5ng n\u00e0o, Etherscan v\u1eabn ho\u1ea1t \u0111\u1ed9ng ho\u00e0n h\u1ea3o. V\u00ed d\u1ef1a tr\u00ean \u0111\u1ecba ch\u1ec9 Ethereum l\u00e0 chu\u1ea9n chung, n\u00ean ch\u1ec9 c\u1ea7n m\u1ed9t thao t\u00e1c l\u00e0 \u0111\u1ee7 \u0111\u1ec3 th\u1ef1c hi\u1ec7n<\/span> c\u00e1ch ki\u1ec3m tra v\u00ed ETH<\/b> ch\u00ednh x\u00e1c.\u00a0<\/span><\/p>\n

                    C\u00e1ch ki\u1ec3m tra v\u00ed ETH tr\u00ean v\u00ed n\u00f3ng v\u00e0 v\u00ed l\u1ea1nh\u00a0<\/b><\/h2>\n
                    \"Cach-kiem-tra-vi-ETH-tren-vi-nong-va-vi-lanh\"
                    C\u00e1ch ki\u1ec3m tra v\u00ed ETH tr\u00ean v\u00ed n\u00f3ng v\u00e0 v\u00ed l\u1ea1nh<\/figcaption><\/figure>\n

                    Khi d\u00f9ng MetaMask, Trust Wallet ho\u1eb7c SafePal, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra v\u00ed ETH ngay trong \u1ee9ng d\u1ee5ng. V\u1edbi v\u00ed l\u1ea1nh (Ledger, Trezor), b\u1ea1n ch\u1ec9 c\u1ea7n k\u1ebft n\u1ed1i v\u1edbi ph\u1ea7n m\u1ec1m qu\u1ea3n l\u00fd v\u00ed r\u1ed3i th\u1ef1c hi\u1ec7n <\/span>c\u00e1ch xem v\u00ed ETH tr\u00ean MetaMask<\/b> n\u1ebfu v\u00ed \u0111\u01b0\u1ee3c li\u00ean k\u1ebft. M\u1ecdi v\u00ed chu\u1ea9n Ethereum \u0111\u1ec1u c\u00f3 th\u1ec3 ki\u1ec3m tra b\u1eb1ng \u0111\u1ecba ch\u1ec9.\u00a0<\/span><\/p>\n

                    C\u00e1ch ki\u1ec3m tra v\u00ed ETH c\u00f3 an to\u00e0n kh\u00f4ng?<\/b><\/h2>\n

                    B\u1ea1n c\u00f3 th\u1ec3 theo d\u00f5i d\u1ea5u hi\u1ec7u v\u00ed ETH b\u1ecb hack b\u1eb1ng c\u00e1ch xem l\u1ecbch s\u1eed giao d\u1ecbch. N\u1ebfu xu\u1ea5t hi\u1ec7n giao d\u1ecbch l\u1ea1 ho\u1eb7c token b\u1ecb r\u00fat kh\u00f4ng r\u00f5 l\u00fd do, b\u1ea1n c\u1ea7n ki\u1ec3m tra ngay l\u1edbp b\u1ea3o m\u1eadt. \u00c1p d\u1ee5ng <\/span>c\u00e1ch ki\u1ec3m tra v\u00ed ETH <\/b>th\u01b0\u1eddng xuy\u00ean gi\u00fap b\u1ea1n ph\u00e1t hi\u1ec7n r\u1ee7i ro s\u1edbm.\u00a0<\/span><\/p>\n

                    M\u1eb9o n\u00e2ng cao \u0111\u1ec3 theo d\u00f5i v\u00ed ETH an to\u00e0n\u00a0<\/b><\/h2>\n

                    \u0110\u1ec3 t\u0103ng hi\u1ec7u qu\u1ea3 khi \u00e1p d\u1ee5ng <\/span>c\u00e1ch ki\u1ec3m tra v\u00ed ETH<\/b>, b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng t\u00ednh n\u0103ng \u201cWatcher\u201d tr\u00ean blockchain explorer \u0111\u1ec3 theo d\u00f5i bi\u1ebfn \u0111\u1ed9ng v\u00ed. Trang b\u1ecb b\u1ea3o m\u1eadt nh\u01b0 2FA, l\u01b0u private key an to\u00e0n v\u00e0 kh\u00f4ng k\u00fd giao d\u1ecbch l\u1ea1. Ngo\u00e0i ra, h\u1ea1n ch\u1ebf k\u1ebft n\u1ed1i v\u1edbi c\u00e1c DApp kh\u00f4ng uy t\u00edn \u0111\u1ec3 tr\u00e1nh b\u1ecb hack.\u00a0<\/span><\/p>\n

                    K\u1ebft lu\u1eadn\u00a0<\/b><\/h2>\n

                    Hi\u1ec3u \u0111\u00fang <\/span>c\u00e1ch ki\u1ec3m tra v\u00ed ETH<\/b> gi\u00fap b\u1ea1n t\u1ef1 b\u1ea3o v\u1ec7 t\u00e0i s\u1ea3n theo d\u00f5i v\u00ed Ethereum d\u1ec5 d\u00e0ng. D\u00f9 b\u1ea1n d\u00f9ng v\u00ed n\u00f3ng hay v\u00ed l\u1ea1nh, vi\u1ec7c ki\u1ec3m tra v\u00ed ETH tr\u00ean Etherscan l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an\u00a0 to\u00e0n. H\u00e3y duy tr\u00ec th\u00f3i quen ki\u1ec3m tra v\u00ed ETH \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 tr\u00e1nh c\u00e1c r\u1ee7i ro v\u00e0 lu\u00f4n theo d\u00f5i d\u00f2ng ti\u1ec1n m\u1ed9t c\u00e1ch ch\u1ee7 \u0111\u1ed9ng.\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                    \u0110\u1ec3 giao d\u1ecbch an to\u00e0n tr\u00ean Ethereum, vi\u1ec7c hi\u1ec3u \u0111\u00fang c\u00e1ch ki\u1ec3m tra v\u00ed ETH v\u00f4 c\u00f9ng quan tr\u1ecdng. B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra s\u1ed1 d\u01b0, l\u1ecbch s\u1eed giao d\u1ecbch v\u00e0 token ch\u1ec9 trong v\u00e0i gi\u00e2y. Hi\u1ec3u \u0111\u00fang c\u00e1ch ki\u1ec3m tra v\u00ed ETH gi\u00fap b\u1ea1n tr\u00e1nh r\u1ee7i ro, ph\u00e1t hi\u1ec7n giao d\u1ecbch b\u1ea5t th\u01b0\u1eddng v\u00e0 […]<\/p>\n","protected":false},"author":2,"featured_media":6293,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"_links":{"self":[{"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/posts\/6289","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/comments?post=6289"}],"version-history":[{"count":2,"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/posts\/6289\/revisions"}],"predecessor-version":[{"id":6295,"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/posts\/6289\/revisions\/6295"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/media\/6293"}],"wp:attachment":[{"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/media?parent=6289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/categories?post=6289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onfa.us\/vi\/wp-json\/wp\/v2\/tags?post=6289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}