{"id":23670,"date":"2023-11-20T10:05:53","date_gmt":"2023-11-20T03:05:53","guid":{"rendered":"https:\/\/www.fiahub.com\/blog\/?p=23670"},"modified":"2024-03-22T16:21:42","modified_gmt":"2024-03-22T09:21:42","slug":"the-nao-la-metadata-trong-giao-dich-blockchain","status":"publish","type":"post","link":"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/","title":{"rendered":"Th\u1ebf n\u00e0o l\u00e0 metadata trong giao d\u1ecbch Blockchain?\u00a0"},"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\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Metadata_trong_cac_giao_dich_blockchain_duoc_giai_thich\" >Metadata trong c\u00e1c giao d\u1ecbch blockchain, \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#On-chain_metadata\" >On-chain metadata<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Off-chain_metadata\" >Off-chain metadata<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Cach_luu_tru_on-chain_va_off-chain_metadata\" >C\u00e1ch l\u01b0u tr\u1eef on-chain v\u00e0 off-chain metadata<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Timestamps\" >Timestamps<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Chi_tiet_giao_dich\" >Chi ti\u1ebft giao d\u1ecbch<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Du_lieu_hop_dong_thong_minh\" >D\u1eef li\u1ec7u h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh<\/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\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Chu_ky_so\" >Ch\u1eef k\u00fd s\u1ed1<\/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\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Phi_gas\" >Ph\u00ed gas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Lien_ket_InterPlanetary_File_System\" >Li\u00ean k\u1ebft InterPlanetary File System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Oracles\" >Oracles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Sieu_du_lieu_NFT\" >Si\u00eau d\u1eef li\u1ec7u NFT<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Lam_cach_nao_de_them_sieu_du_lieu_vao_giao_dich_blockchain\" >L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 th\u00eam si\u00eau d\u1eef li\u1ec7u v\u00e0o giao d\u1ecbch blockchain?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Tao_hop_dong_thong_minh\" >T\u1ea1o h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh<\/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\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Tuong_tac_voi_hop_dong_thong_minh\" >T\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Xac_minh_sieu_du_lieu\" >X\u00e1c minh si\u00eau d\u1eef li\u1ec7u<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Cac_truong_hop_su_dung_sieu_du_lieu_blockchain\" >C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng si\u00eau d\u1eef li\u1ec7u blockchain<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Quan_ly_chuoi_cung_ung\" >Qu\u1ea3n l\u00fd chu\u1ed7i cung \u1ee9ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Nhan_dang_va_xac_thuc_ky_thuat_so\" >Nh\u1eadn d\u1ea1ng v\u00e0 x\u00e1c th\u1ef1c k\u1ef9 thu\u1eadt s\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Hop_dong_thong_minh\" >H\u1ee3p \u0111\u1ed3ng th\u00f4ng minh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#NFT_va_tai_san_ky_thuat_so\" >NFT v\u00e0 t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Ho_so_cham_soc_suc_khoe_va_bao_mat_du_lieu\" >H\u1ed3 s\u01a1 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe v\u00e0 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/#Nhung_thach_thuc_lien_quan_den_sieu_du_lieu_blockchain\" >Nh\u1eefng th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn si\u00eau d\u1eef li\u1ec7u blockchain<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Metadata_trong_cac_giao_dich_blockchain_duoc_giai_thich\"><\/span><span style=\"font-weight: 400\">Metadata trong c\u00e1c giao d\u1ecbch blockchain, \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">D\u1eef li\u1ec7u ho\u1eb7c th\u00f4ng tin b\u1ed5 sung c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o giao d\u1ecbch ti\u1ec1n \u0111i\u1ec7n t\u1eed tr\u00ean blockchain \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 si\u00eau d\u1eef li\u1ec7u (metadata) trong giao d\u1ecbch blockchain.<\/span><\/p>\n<p><span style=\"font-weight: 400\">M\u1eb7c d\u00f9 ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a blockchain l\u00e0 ghi l\u1ea1i v\u00e0 x\u00e1c th\u1ef1c vi\u1ec7c chuy\u1ec3n giao t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1, bao g\u1ed3m c\u00e1c lo\u1ea1i ti\u1ec1n \u0111i\u1ec7n t\u1eed nh\u01b0 Ether (ETH) ho\u1eb7c <a href=\"https:\/\/www.fiahub.com\">Bitcoin (BTC)<\/a>, nh\u01b0ng si\u00eau d\u1eef li\u1ec7u cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng th\u00eam th\u00f4ng tin ho\u1eb7c ng\u1eef c\u1ea3nh b\u1ed5 sung v\u00e0o giao d\u1ecbch c\u1ee7a h\u1ecd.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Si\u00eau d\u1eef li\u1ec7u l\u00e0 d\u1eef li\u1ec7u v\u1ec1 d\u1eef li\u1ec7u. Trong b\u1ed1i c\u1ea3nh giao d\u1ecbch blockchain, n\u00f3 bao g\u1ed3m th\u00f4ng tin kh\u00f4ng li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn vi\u1ec7c chuy\u1ec3n ti\u1ec1n \u0111i\u1ec7n t\u1eed nh\u01b0ng c\u00f3 th\u1ec3 cung c\u1ea5p ch\u1ee9c n\u0103ng b\u1ed5 sung cho giao d\u1ecbch.<\/span><\/p>\n<figure id=\"attachment_25351\" aria-describedby=\"caption-attachment-25351\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-25351\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-2.png\" alt=\"metadata\" width=\"900\" height=\"696\" srcset=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-2.png 931w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-2-300x232.png 300w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-2-150x116.png 150w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-2-768x594.png 768w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-2-450x348.png 450w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-25351\" class=\"wp-caption-text\">Si\u00eau d\u1eef li\u1ec7u l\u00e0 d\u1eef li\u1ec7u v\u1ec1 d\u1eef li\u1ec7u. Trong b\u1ed1i c\u1ea3nh giao d\u1ecbch blockchain, n\u00f3 bao g\u1ed3m th\u00f4ng tin kh\u00f4ng li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn vi\u1ec7c chuy\u1ec3n ti\u1ec1n \u0111i\u1ec7n t\u1eed nh\u01b0ng c\u00f3 th\u1ec3 cung c\u1ea5p ch\u1ee9c n\u0103ng b\u1ed5 sung cho giao d\u1ecbch.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400\">C\u00f3 hai lo\u1ea1i si\u00eau d\u1eef li\u1ec7u ch\u00ednh trong giao d\u1ecbch blockchain:<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"On-chain_metadata\"><\/span><span style=\"font-weight: 400\">On-chain metadata<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">V\u00ec si\u00eau d\u1eef li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef ngay l\u1eadp t\u1ee9c tr\u00ean blockchain n\u00ean n\u00f3 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a d\u1eef li\u1ec7u giao d\u1ecbch \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef \u1edf \u0111\u00f3. B\u1ea5t c\u1ee9 ai c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o blockchain \u0111\u1ec1u c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y n\u00f3. T\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng tin nh\u01b0 nh\u00e3n giao d\u1ecbch, ghi ch\u00fa ho\u1eb7c t\u00e0i li\u1ec7u tham kh\u1ea3o \u0111\u1ebfn c\u00e1c h\u1ee3p \u0111\u1ed3ng ho\u1eb7c t\u00e0i li\u1ec7u b\u00ean ngo\u00e0i \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong si\u00eau d\u1eef li\u1ec7u on-chain.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Off-chain_metadata\"><\/span><span style=\"font-weight: 400\">Off-chain metadata<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">D\u1eef li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c tham chi\u1ebfu trong giao d\u1ecbch nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef tr\u1ef1c ti\u1ebfp tr\u00ean blockchain. C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn n\u1ed9i dung kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ec7p, t\u00e0i li\u1ec7u ho\u1eb7c URL web cung c\u1ea5p th\u00eam th\u00f4ng tin chi ti\u1ebft v\u1ec1 giao d\u1ecbch, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o si\u00eau d\u1eef li\u1ec7u off-chain. Si\u00eau d\u1eef li\u1ec7u off-chain l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m b\u1edbt s\u1ef1 l\u1ed9n x\u1ed9n tr\u00ean Blockchain.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach_luu_tru_on-chain_va_off-chain_metadata\"><\/span><span style=\"font-weight: 400\">C\u00e1ch l\u01b0u tr\u1eef on-chain v\u00e0 off-chain metadata<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>Si\u00eau d\u1eef li\u1ec7u on-chain<\/b><span style=\"font-weight: 400\">, ch\u1eb3ng h\u1ea1n nh\u01b0 chi ti\u1ebft giao d\u1ecbch, m\u00e3 h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh v\u00e0 thu\u1ed9c t\u00ednh Token, l\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ed1i v\u1edbi c\u1ea5u tr\u00fac d\u1eef li\u1ec7u c\u1ee7a Blockchain, \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef v\u00e0 sao ch\u00e9p v\u0129nh vi\u1ec5n tr\u00ean c\u00e1c n\u00fat m\u1ea1ng. Ng\u01b0\u1ee3c l\u1ea1i, si\u00eau d\u1eef li\u1ec7u off-chain \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u00ean ngo\u00e0i, s\u1eed d\u1ee5ng c\u00e1c tham chi\u1ebfu m\u1eadt m\u00e3, n\u00e2ng cao hi\u1ec7u qu\u1ea3 v\u00e0 t\u00ednh linh ho\u1ea1t c\u1ee7a Blockchain.<\/span><\/p>\n<p><span style=\"font-weight: 400\">C\u1ea5u tr\u00fac d\u1eef li\u1ec7u c\u1ee7a blockchain v\u1ed1n ch\u1ee9a si\u00eau d\u1eef li\u1ec7u on-chain. Th\u00f4ng tin n\u00e0y \u0111\u01b0\u1ee3c l\u01b0u v\u00e0 sao ch\u00e9p v\u0129nh vi\u1ec5n tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c n\u00fat m\u1ea1ng v\u00e0 n\u00f3 t\u1ea1o th\u00e0nh m\u1ed9t th\u00e0nh ph\u1ea7n c\u1ee7a s\u1ed5 c\u00e1i blockchain. Ph\u1ea7n l\u1edbn si\u00eau d\u1eef li\u1ec7u on-chain \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef trong c\u00e1c giao d\u1ecbch th\u1ef1c t\u1ebf. Tr\u00ean blockchain, m\u1ecdi giao d\u1ecbch \u0111\u1ec1u c\u00f3 t\u1ea3i tr\u1ecdng v\u1edbi si\u00eau d\u1eef li\u1ec7u th\u00edch h\u1ee3p. Ch\u1eb3ng h\u1ea1n, ng\u01b0\u1eddi g\u1eedi, ng\u01b0\u1eddi nh\u1eadn, s\u1ed1 ti\u1ec1n v\u00e0 ng\u00e0y giao d\u1ecbch \u0111\u01b0\u1ee3c ghi l\u1ea1i d\u01b0\u1edbi d\u1ea1ng si\u00eau d\u1eef li\u1ec7u on-chain khi g\u1eedi ti\u1ec1n \u0111i\u1ec7n t\u1eed gi\u1eefa c\u00e1c \u0111\u1ecba ch\u1ec9.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Khi n\u00f3i \u0111\u1ebfn h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, m\u00e3 c\u1ee7a h\u1ee3p \u0111\u1ed3ng v\u00e0 d\u1eef li\u1ec7u \u0111i k\u00e8m \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef tr\u00ean blockchain d\u01b0\u1edbi d\u1ea1ng si\u00eau d\u1eef li\u1ec7u on-chain. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m c\u00e1c ch\u1ee9c n\u0103ng, bi\u1ebfn tr\u1ea1ng th\u00e1i v\u00e0 d\u1eef li\u1ec7u li\u00ean quan c\u1ee7a h\u1ee3p \u0111\u1ed3ng. M\u1ed7i kh\u1ed1i c\u00f3 c\u00e1c ti\u00eau \u0111\u1ec1 cung c\u1ea5p m\u1ed9t s\u1ed1 si\u00eau d\u1eef li\u1ec7u nh\u1ea5t \u0111\u1ecbnh c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng truy c\u1eadp \u0111\u1ec3 x\u00e1c minh, nh\u01b0 d\u1ea5u th\u1eddi gian kh\u1ed1i, s\u1ed1 kh\u1ed1i v\u00e0 ID giao d\u1ecbch. Si\u00eau d\u1eef li\u1ec7u li\u00ean quan \u0111\u1ebfn thu\u1ed9c t\u00ednh Token (v\u00ed d\u1ee5: t\u00ean Token, k\u00fd hi\u1ec7u, ngu\u1ed3n cung c\u1ea5p) th\u01b0\u1eddng xuy\u00ean \u0111\u01b0\u1ee3c duy tr\u00ec tr\u00ean Blockchain \u0111\u1ed1i v\u1edbi c\u00e1c Token nh\u01b0 ERC-721 v\u00e0 ERC-20 c\u1ee7a Ethereum.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Ng\u01b0\u1ee3c l\u1ea1i, <\/span><b>si\u00eau d\u1eef li\u1ec7u off-chain <\/b><span style=\"font-weight: 400\">\u0111\u01b0\u1ee3c l\u01b0u tr\u1eef ngo\u00e0i Blockchain. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef \u1edf nhi\u1ec1u n\u01a1i, bao g\u1ed3m c\u00e1c gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng quy m\u00f4 ngo\u00e0i chu\u1ed7i nh\u01b0 Lightning Network, c\u00e1c h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef phi t\u1eadp trung nh\u01b0 H\u1ec7 th\u1ed1ng t\u1ec7p li\u00ean h\u00e0nh tinh (IPFS) v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u b\u00ean ngo\u00e0i. Blockchain s\u1eed d\u1ee5ng h\u00e0m b\u0103m ho\u1eb7c con tr\u1ecf m\u1eadt m\u00e3 \u0111\u1ec3 tham chi\u1ebfu \u0111\u1ebfn si\u00eau d\u1eef li\u1ec7u off-chain, gi\u00fap gi\u1ea3i ph\u00f3ng kh\u00f4ng gian tr\u00ean blockchain \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u1edbn h\u01a1n ho\u1eb7c \u00edt quan tr\u1ecdng h\u01a1n, gi\u1ea3m t\u1eafc ngh\u1ebdn v\u00e0 cung c\u1ea5p t\u00ednh linh ho\u1ea1t cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n th\u00f4ng tin ri\u00eang t\u01b0 ho\u1eb7c \u0111\u1ed9ng.<\/span><\/p>\n<figure id=\"attachment_25352\" aria-describedby=\"caption-attachment-25352\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-25352\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-3.png\" alt=\"metadata\" width=\"900\" height=\"450\" srcset=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-3.png 1024w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-3-300x150.png 300w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-3-150x75.png 150w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-3-768x384.png 768w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-3-450x225.png 450w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-25352\" class=\"wp-caption-text\">Khi n\u00f3i \u0111\u1ebfn h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, m\u00e3 c\u1ee7a h\u1ee3p \u0111\u1ed3ng v\u00e0 d\u1eef li\u1ec7u \u0111i k\u00e8m \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef tr\u00ean blockchain d\u01b0\u1edbi d\u1ea1ng si\u00eau d\u1eef li\u1ec7u on-chain.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400\">Si\u00eau d\u1eef li\u1ec7u trong blockchain bao g\u1ed3m d\u1ea5u th\u1eddi gian, chi ti\u1ebft giao d\u1ecbch, d\u1eef li\u1ec7u h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, ch\u1eef k\u00fd s\u1ed1, ph\u00ed gas, li\u00ean k\u1ebft IPFS, th\u00f4ng tin c\u1ee7a Oracles v\u00e0 si\u00eau d\u1eef li\u1ec7u NFT, cho ph\u00e9p l\u01b0u tr\u1eef th\u00f4ng tin v\u00e0 ch\u1ee9c n\u0103ng \u0111a d\u1ea1ng trong m\u1ea1ng blockchain.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Timestamps\"><\/span><span style=\"font-weight: 400\">Timestamps<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">M\u1ed7i kh\u1ed1i c\u1ee7a blockchain \u0111\u1ec1u ch\u1ee9a d\u1ea5u th\u1eddi gian (timestamps)\u00a0 hi\u1ec3n th\u1ecb th\u1eddi \u0111i\u1ec3m kh\u1ed1i \u0111\u01b0\u1ee3c th\u00eam v\u00e0o chu\u1ed7i. Th\u1eddi gian c\u1ee7a giao d\u1ecbch \u0111\u01b0\u1ee3c ghi l\u1ea1i th\u00f4ng qua si\u00eau d\u1eef li\u1ec7u n\u00e0y.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chi_tiet_giao_dich\"><\/span><span style=\"font-weight: 400\">Chi ti\u1ebft giao d\u1ecbch<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u0110\u1ecba ch\u1ec9 ng\u01b0\u1eddi g\u1eedi v\u00e0 ng\u01b0\u1eddi nh\u1eadn, s\u1ed1 ti\u1ec1n giao d\u1ecbch v\u00e0 ID giao d\u1ecbch ri\u00eang bi\u1ec7t ch\u1ec9 l\u00e0 m\u1ed9t v\u00e0i v\u00ed d\u1ee5 v\u1ec1 si\u00eau d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u1ed7i giao d\u1ecbch tr\u00ean blockchain.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Du_lieu_hop_dong_thong_minh\"><\/span><span style=\"font-weight: 400\">D\u1eef li\u1ec7u h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">C\u00e1c tham s\u1ed1 v\u00e0 d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o c\u1ea7n thi\u1ebft cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ee3p \u0111\u1ed3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bao g\u1ed3m trong si\u00eau d\u1eef li\u1ec7u khi h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh \u0111\u01b0\u1ee3c th\u1ef1c thi tr\u00ean blockchain.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chu_ky_so\"><\/span><span style=\"font-weight: 400\">Ch\u1eef k\u00fd s\u1ed1<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u0110\u1ec3 x\u00e1c nh\u1eadn t\u00ednh h\u1ee3p ph\u00e1p c\u1ee7a c\u00e1c giao d\u1ecbch v\u00e0 ch\u1ee9ng minh quy\u1ec1n s\u1edf h\u1eefu, si\u00eau d\u1eef li\u1ec7u ch\u1ee9a ch\u1eef k\u00fd s\u1ed1.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phi_gas\"><\/span><span style=\"font-weight: 400\">Ph\u00ed gas<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">Tr\u00ean c\u00e1c Blockchain nh\u01b0 Ethereum, si\u00eau d\u1eef li\u1ec7u c\u00f3 th\u1ec3 bao g\u1ed3m c\u00e1c chi ti\u1ebft li\u00ean quan \u0111\u1ebfn ph\u00ed gas li\u00ean quan \u0111\u1ebfn vi\u1ec7c x\u1eed l\u00fd c\u00e1c giao d\u1ecbch. Ng\u01b0\u1eddi khai th\u00e1c v\u00e0 ng\u01b0\u1eddi x\u00e1c th\u1ef1c c\u1ea7n th\u00f4ng tin n\u00e0y \u0111\u1ec3 \u01b0u ti\u00ean c\u00e1c giao d\u1ecbch.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Lien_ket_InterPlanetary_File_System\"><\/span><span style=\"font-weight: 400\">Li\u00ean k\u1ebft InterPlanetary File System<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">C\u00e1c li\u00ean k\u1ebft t\u1edbi IPFS, m\u1ed9t h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef t\u1ec7p phi t\u1eadp trung, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong si\u00eau d\u1eef li\u1ec7u blockchain. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp d\u1eef li\u1ec7u tr\u00ean blockchain b\u1eb1ng c\u00e1ch truy xu\u1ea5t m\u1ed9t tham chi\u1ebfu, th\u01b0\u1eddng \u1edf d\u1ea1ng h\u00e0m b\u0103m, v\u00e0o t\u1ec7p IPFS n\u1ebfu c\u1ea7n. C\u00e1c t\u1ec7p l\u1edbn, bao g\u1ed3m h\u00ecnh \u1ea3nh, video ho\u1eb7c t\u00e0i li\u1ec7u li\u00ean quan \u0111\u1ebfn t\u00e0i s\u1ea3n tr\u00ean chu\u1ed7i nh\u01b0 NFT, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Oracles\"><\/span><span style=\"font-weight: 400\">Oracles<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">Oracles l\u00e0 c\u00e1c d\u1ecbch v\u1ee5 b\u00ean ngo\u00e0i cung c\u1ea5p quy\u1ec1n truy c\u1eadp h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh v\u00e0o d\u1eef li\u1ec7u trong th\u1ebf gi\u1edbi th\u1ef1c. Th\u00f4ng tin c\u1ee7a c\u00e1c nh\u00e0 ti\u00ean tri n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o si\u00eau d\u1eef li\u1ec7u <a href=\"https:\/\/www.fiahub.com\">blockchain<\/a> \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sieu_du_lieu_NFT\"><\/span><span style=\"font-weight: 400\">Si\u00eau d\u1eef li\u1ec7u NFT<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">NFT th\u01b0\u1eddng ch\u1ee9a si\u00eau d\u1eef li\u1ec7u, ch\u1eb3ng h\u1ea1n nh\u01b0 ng\u01b0\u1eddi t\u1ea1o, m\u00f4 t\u1ea3 v\u00e0 c\u00e1c chi ti\u1ebft kh\u00e1c v\u1ec1 t\u00e0i s\u1ea3n v\u1eadt l\u00fd ho\u1eb7c k\u1ef9 thu\u1eadt s\u1ed1 m\u00e0 ch\u00fang \u0111\u1ea1i di\u1ec7n.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Lam_cach_nao_de_them_sieu_du_lieu_vao_giao_dich_blockchain\"><\/span><span style=\"font-weight: 400\">L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 th\u00eam si\u00eau d\u1eef li\u1ec7u v\u00e0o giao d\u1ecbch blockchain?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">Khi ng\u01b0\u1eddi d\u00f9ng mu\u1ed1n th\u00eam si\u00eau d\u1eef li\u1ec7u v\u00e0o giao d\u1ecbch blockchain, h\u1ecd c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u \u0111\u00f3 th\u00f4ng qua h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, \u0111\u00e2y l\u00e0 h\u1ee3p \u0111\u1ed3ng t\u1ef1 th\u1ef1c hi\u1ec7n v\u1edbi c\u00e1c \u0111i\u1ec1u kho\u1ea3n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a trong \u0111\u00f3.<\/span><\/p>\n<p><span style=\"font-weight: 400\">H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u quy tr\u00ecnh s\u1eed d\u1ee5ng Ethereum l\u00e0m v\u00ed d\u1ee5, v\u1ed1n \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng \u0111\u01b0a si\u00eau d\u1eef li\u1ec7u v\u00e0o c\u00e1c giao d\u1ecbch th\u00f4ng qua h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tao_hop_dong_thong_minh\"><\/span><span style=\"font-weight: 400\">T\u1ea1o h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">H\u1ee3p \u0111\u1ed3ng th\u00f4ng minh ph\u1ea3i \u0111\u01b0\u1ee3c t\u1ea1o tr\u01b0\u1edbc khi th\u00eam si\u00eau d\u1eef li\u1ec7u. H\u01b0\u1edbng d\u1eabn v\u1ec1 v\u1ecb tr\u00ed v\u00e0 c\u00e1ch th\u1ee9c l\u01b0u tr\u1eef si\u00eau d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c bao g\u1ed3m trong h\u1ee3p \u0111\u1ed3ng n\u00e0y. Si\u00eau d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong m\u1ed9t bi\u1ebfn \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, th\u01b0\u1eddng l\u00e0 d\u01b0\u1edbi d\u1ea1ng chu\u1ed7i.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Trong v\u00ed d\u1ee5 tr\u00ean, h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh c\u00f3 t\u00ean MyContract c\u00f3 bi\u1ebfn si\u00eau d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u1ecdc c\u00f4ng khai v\u00e0 c\u00f3 ch\u1ee9c n\u0103ng g\u1ecdi l\u00e0 setMetadata cho ph\u00e9p c\u1eadp nh\u1eadt si\u00eau d\u1eef li\u1ec7u.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tuong_tac_voi_hop_dong_thong_minh\"><\/span><span style=\"font-weight: 400\">T\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">M\u1ed9t c\u00e1 nh\u00e2n ph\u1ea3i giao ti\u1ebfp v\u1edbi h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh b\u1eb1ng c\u00e1ch g\u1eedi giao d\u1ecbch \u0111\u1ec3 th\u00eam si\u00eau d\u1eef li\u1ec7u v\u00e0o giao d\u1ecbch blockchain. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c th\u01b0 vi\u1ec7n nh\u01b0 web3.js ho\u1eb7c ethers.js ho\u1eb7c th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng v\u00ed <a href=\"https:\/\/www.fiahub.com\">Ethereum<\/a>.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xac_minh_sieu_du_lieu\"><\/span><span style=\"font-weight: 400\">X\u00e1c minh si\u00eau d\u1eef li\u1ec7u<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">B\u1eb1ng c\u00e1ch t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh v\u00e0 \u0111\u1ecdc bi\u1ebfn si\u00eau d\u1eef li\u1ec7u, b\u1ea5t k\u1ef3 ai c\u0169ng c\u00f3 th\u1ec3 x\u00e1c th\u1ef1c si\u00eau d\u1eef li\u1ec7u sau khi giao d\u1ecbch \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn v\u00e0 th\u00eam v\u00e0o Blockchain. Tuy nhi\u00ean, \u0111i\u1ec1u quan tr\u1ecdng c\u1ea7n nh\u1edb l\u00e0 c\u1ea7n xem x\u00e9t c\u00e1c c\u00e2n nh\u1eafc nh\u01b0 chi ph\u00ed gas, b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 khi th\u00eam si\u00eau d\u1eef li\u1ec7u v\u00e0o giao d\u1ecbch blockchain.<\/span><\/p>\n<figure id=\"attachment_25353\" aria-describedby=\"caption-attachment-25353\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-25353\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-10.jpg\" alt=\"metadata\" width=\"900\" height=\"703\" srcset=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-10.jpg 1408w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-10-300x234.jpg 300w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-10-1024x800.jpg 1024w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-10-150x117.jpg 150w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-10-768x600.jpg 768w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-10-450x352.jpg 450w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-10-1200x938.jpg 1200w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-25353\" class=\"wp-caption-text\">Si\u00eau d\u1eef li\u1ec7u trong blockchain bao g\u1ed3m d\u1ea5u th\u1eddi gian, chi ti\u1ebft giao d\u1ecbch, d\u1eef li\u1ec7u h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, ch\u1eef k\u00fd s\u1ed1, ph\u00ed gas, li\u00ean k\u1ebft IPFS, th\u00f4ng tin c\u1ee7a Oracles v\u00e0 si\u00eau d\u1eef li\u1ec7u NFT, cho ph\u00e9p l\u01b0u tr\u1eef th\u00f4ng tin v\u00e0 ch\u1ee9c n\u0103ng \u0111a d\u1ea1ng trong m\u1ea1ng blockchain.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Cac_truong_hop_su_dung_sieu_du_lieu_blockchain\"><\/span><span style=\"font-weight: 400\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng si\u00eau d\u1eef li\u1ec7u blockchain<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">Si\u00eau d\u1eef li\u1ec7u Blockchain t\u00ecm th\u1ea5y \u1ee9ng d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh, bao g\u1ed3m qu\u1ea3n l\u00fd chu\u1ed7i cung \u1ee9ng, nh\u1eadn d\u1ea1ng k\u1ef9 thu\u1eadt s\u1ed1, h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, NFT v\u00e0 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quan_ly_chuoi_cung_ung\"><\/span><span style=\"font-weight: 400\">Qu\u1ea3n l\u00fd chu\u1ed7i cung \u1ee9ng<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">C\u00e1c doanh nghi\u1ec7p c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c v\u00e0 t\u00ednh minh b\u1ea1ch b\u1eb1ng c\u00e1ch \u0111\u01b0a si\u00eau d\u1eef li\u1ec7u li\u00ean quan \u0111\u1ebfn s\u1ea3n xu\u1ea5t, v\u1eadn chuy\u1ec3n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m l\u00ean blockchain. V\u00ed d\u1ee5, m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t th\u1ef1c ph\u1ea9m c\u00f3 th\u1ec3 theo d\u00f5i th\u00f4ng tin li\u00ean quan \u0111\u1ebfn ngu\u1ed3n g\u1ed1c c\u1ee7a nguy\u00ean li\u1ec7u, vi\u1ec7c ch\u00fang \u0111i qua chu\u1ed7i cung \u1ee9ng v\u00e0 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Th\u00f4ng tin n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 gian l\u1eadn ho\u1eb7c thu h\u1ed3i, \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh v\u00e0 x\u00e1c nh\u1eadn t\u00ednh x\u00e1c th\u1ef1c. H\u01a1n n\u1eefa, kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng si\u00eau d\u1eef li\u1ec7u n\u00e0y \u0111\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u1ec1 h\u00e0ng h\u00f3a h\u1ecd mua.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Nhan_dang_va_xac_thuc_ky_thuat_so\"><\/span><span style=\"font-weight: 400\">Nh\u1eadn d\u1ea1ng v\u00e0 x\u00e1c th\u1ef1c k\u1ef9 thu\u1eadt s\u1ed1<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">Si\u00eau d\u1eef li\u1ec7u Blockchain c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 qu\u1ea3n l\u00fd v\u00e0 b\u1ea3o qu\u1ea3n an to\u00e0n th\u00f4ng tin x\u00e1c th\u1ef1c c\u0169ng nh\u01b0 d\u1eef li\u1ec7u c\u00e1 nh\u00e2n. M\u1ecdi ng\u01b0\u1eddi ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh v\u00e0 c\u00f3 th\u1ec3 cho ph\u00e9p ho\u1eb7c c\u1ea5m truy c\u1eadp \u0111\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi \u0111\u01b0\u1ee3c ph\u00e9p, \u0111i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng b\u1ecb \u0111\u00e1nh c\u1eafp danh t\u00ednh v\u00e0 vi ph\u1ea1m quy\u1ec1n ri\u00eang t\u01b0. C\u00e1c doanh nghi\u1ec7p, ch\u00ednh ph\u1ee7 v\u00e0 t\u1ed5 ch\u1ee9c gi\u00e1o d\u1ee5c c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u1ec3 c\u1ea3i thi\u1ec7n b\u1ea3o m\u1eadt d\u1ecbch v\u1ee5 v\u00e0 \u0111\u1ea9y nhanh c\u00e1c th\u1ee7 t\u1ee5c x\u00e1c minh danh t\u00ednh.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hop_dong_thong_minh\"><\/span><span style=\"font-weight: 400\">H\u1ee3p \u0111\u1ed3ng th\u00f4ng minh<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">M\u1ed9t l\u0129nh v\u1ef1c kh\u00e1c trong \u0111\u00f3 si\u00eau d\u1eef li\u1ec7u blockchain r\u1ea5t c\u1ea7n thi\u1ebft l\u00e0 h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh. Si\u00eau d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c c\u00e1c h\u1ee3p \u0111\u1ed3ng t\u1ef1 th\u1ef1c hi\u1ec7n n\u00e0y s\u1eed d\u1ee5ng \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh th\u1eddi \u0111i\u1ec3m v\u00e0 c\u00e1ch th\u1ef1c hi\u1ec7n m\u1ed9t \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3. V\u00ed d\u1ee5: h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh b\u1ea3o hi\u1ec3m c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u kh\u00ed t\u01b0\u1ee3ng l\u00e0m si\u00eau d\u1eef li\u1ec7u \u0111\u1ec3 b\u1eaft \u0111\u1ea7u thanh to\u00e1n ngay l\u1eadp t\u1ee9c cho c\u00e1c ch\u1ee7 h\u1ee3p \u0111\u1ed3ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft kh\u00f4ng thu\u1eadn l\u1ee3i.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Trong ng\u00e0nh t\u00e0i ch\u00ednh, c\u00e1c th\u1ecfa thu\u1eadn cho vay c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp t\u00ednh \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n v\u00e0 l\u00e3i su\u1ea5t d\u1ef1a tr\u00ean x\u1ebfp h\u1ea1ng t\u00edn d\u1ee5ng v\u00e0 l\u1ecbch s\u1eed giao d\u1ecbch \u0111\u01b0\u1ee3c duy tr\u00ec d\u01b0\u1edbi d\u1ea1ng si\u00eau d\u1eef li\u1ec7u, cho ph\u00e9p th\u1ef1c hi\u1ec7n c\u00e1c th\u1ee7 t\u1ee5c cho vay t\u1ef1 \u0111\u1ed9ng v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"NFT_va_tai_san_ky_thuat_so\"><\/span><span style=\"font-weight: 400\">NFT v\u00e0 t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">NFT v\u00e0 t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1 th\u01b0\u1eddng xuy\u00ean s\u1eed d\u1ee5ng th\u00f4ng tin blockchain \u0111\u1ec3 cung c\u1ea5p \u00fd ngh\u0129a v\u00e0 gi\u00e1 tr\u1ecb cho c\u00e1c m\u00f3n \u0111\u1ed3 s\u01b0u t\u1ea7m k\u1ef9 thu\u1eadt s\u1ed1, t\u00e1c ph\u1ea9m ngh\u1ec7 thu\u1eadt v\u00e0 t\u00e0i s\u1ea3n. Th\u00f4ng tin v\u1ec1 ng\u01b0\u1eddi kh\u1edfi t\u1ea1o, l\u1ecbch s\u1eed quy\u1ec1n s\u1edf h\u1eefu v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a v\u1eadt ph\u1ea9m k\u1ef9 thu\u1eadt s\u1ed1 l\u00e0 v\u00ed d\u1ee5 v\u1ec1 si\u00eau d\u1eef li\u1ec7u. Theo d\u00f5i ngu\u1ed3n g\u1ed1c, x\u00e1c th\u1ef1c ngh\u1ec7 thu\u1eadt v\u00e0 t\u1ea1o c\u00e1c \u1ee9ng d\u1ee5ng phi t\u1eadp trung (DApps) x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean NFT \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i r\u1ea5t nhi\u1ec1u t\u1eeb ki\u1ebfn th\u1ee9c n\u00e0y.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ho_so_cham_soc_suc_khoe_va_bao_mat_du_lieu\"><\/span><span style=\"font-weight: 400\">H\u1ed3 s\u01a1 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe v\u00e0 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">H\u01a1n n\u1eefa, l\u0129nh v\u1ef1c ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe \u0111ang s\u1eed d\u1ee5ng si\u00eau d\u1eef li\u1ec7u blockchain \u0111\u1ec3 qu\u1ea3n l\u00fd h\u1ed3 s\u01a1 b\u1ec7nh nh\u00e2n m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u. L\u1ecbch s\u1eed y t\u1ebf, bi\u1ec3u m\u1eabu ch\u1ea5p thu\u1eadn c\u1ee7a b\u1ec7nh nh\u00e2n v\u00e0 nh\u1eadt k\u00fd truy c\u1eadp d\u1eef li\u1ec7u \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong si\u00eau d\u1eef li\u1ec7u, c\u1ea3i thi\u1ec7n t\u00ednh b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 c\u1ee7a th\u00f4ng tin s\u1ee9c kh\u1ecfe. H\u01a1n n\u1eefa, n\u00f3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n li\u00ean l\u1ea1c gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe kh\u00e1c nhau v\u00e0 cho ph\u00e9p ng\u01b0\u1eddi \u1ee9ng c\u1ee9u kh\u1ea9n c\u1ea5p c\u00f3 \u0111\u01b0\u1ee3c th\u00f4ng tin y t\u1ebf quan tr\u1ecdng nhanh h\u01a1n.<\/span><\/p>\n<figure id=\"attachment_25354\" aria-describedby=\"caption-attachment-25354\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-25354\" src=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-11.jpg\" alt=\"metadata\" width=\"900\" height=\"523\" srcset=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-11.jpg 771w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-11-300x174.jpg 300w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-11-150x87.jpg 150w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-11-768x446.jpg 768w, https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/a1-11-450x261.jpg 450w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption id=\"caption-attachment-25354\" class=\"wp-caption-text\">Si\u00eau d\u1eef li\u1ec7u Blockchain t\u00ecm th\u1ea5y \u1ee9ng d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh, bao g\u1ed3m qu\u1ea3n l\u00fd chu\u1ed7i cung \u1ee9ng, nh\u1eadn d\u1ea1ng k\u1ef9 thu\u1eadt s\u1ed1, h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, NFT v\u00e0 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Nhung_thach_thuc_lien_quan_den_sieu_du_lieu_blockchain\"><\/span><span style=\"font-weight: 400\">Nh\u1eefng th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn si\u00eau d\u1eef li\u1ec7u blockchain<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">V\u01b0\u1ee3t qua c\u00e1c th\u00e1ch th\u1ee9c trong si\u00eau d\u1eef li\u1ec7u blockchain, bao g\u1ed3m c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng, m\u1ed1i lo ng\u1ea1i v\u1ec1 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a Oracle, l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 b\u1ec1n v\u1eefng v\u00e0 \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i.<\/span><\/p>\n<p><span style=\"font-weight: 400\">M\u1ed1i quan t\u00e2m v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 chi ph\u00ed l\u01b0u tr\u1eef l\u00e0 r\u1ea5t quan tr\u1ecdng b\u1edfi v\u00ec khi m\u1ea1ng blockchain t\u0103ng quy m\u00f4, ch\u00fang c\u00f3 th\u1ec3 tr\u1edf n\u00ean k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 c\u1ea7n nhi\u1ec1u t\u00e0i nguy\u00ean h\u01a1n. Kh\u1ed1i l\u01b0\u1ee3ng l\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u1edbn tr\u00ean blockchain c\u00f3 th\u1ec3 g\u00e2y c\u0103ng th\u1eb3ng cho ki\u1ebfn tr\u00fac m\u1ea1ng v\u00e0 t\u0103ng nguy c\u01a1 t\u1eadp trung h\u00f3a.<\/span><\/p>\n<p><span style=\"font-weight: 400\">M\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00e1c l\u00e0 b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 d\u1eef li\u1ec7u, \u0111\u1eb7c bi\u1ec7t khi x\u1eed l\u00fd d\u1eef li\u1ec7u ri\u00eang t\u01b0 ho\u1eb7c nh\u1ea1y c\u1ea3m. T\u00ednh minh b\u1ea1ch c\u1ee7a Blockchain c\u00f3 th\u1ec3 m\u00e2u thu\u1eabn v\u1edbi c\u00e1c quy \u0111\u1ecbnh v\u1ec1 quy\u1ec1n ri\u00eang t\u01b0, v\u00ec v\u1eady vi\u1ec7c tri\u1ec3n khai v\u00e0 thi\u1ebft k\u1ebf ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n c\u1ea9n th\u1eadn. H\u01a1n n\u1eefa, \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng blockchain v\u00e0 h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o \u0111\u1ed9c h\u1ea1i ho\u1eb7c sai s\u00f3t khi ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c nh\u00e0 ti\u00ean tri \u0111\u1ec3 truy xu\u1ea5t d\u1eef li\u1ec7u b\u00ean ngo\u00e0i.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n v\u00e0 \u00e1p d\u1ee5ng c\u00f4ng ngh\u1ec7 blockchain trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. V\u01b0\u1ee3t qua nh\u1eefng tr\u1edf ng\u1ea1i n\u00e0y trong si\u00eau d\u1eef li\u1ec7u blockchain \u0111\u00f2i h\u1ecfi m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c \u0111a d\u1ea1ng. C\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c gi\u1ea3i ph\u00e1p l\u1edbp 2 v\u00e0 k\u1ef9 thu\u1eadt ph\u00e2n chia \u0111\u1ec3 gi\u1ea3m t\u1ea3i m\u1ed9t s\u1ed1 d\u1eef li\u1ec7u nh\u1ea5t \u0111\u1ecbnh kh\u1ecfi chu\u1ed7i ch\u00ednh nh\u1eb1m tr\u00e1nh nh\u1eefng kh\u00f3 kh\u0103n v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<\/span><\/p>\n<p><span style=\"font-weight: 400\">M\u00e3 h\u00f3a v\u00e0 Blockchain \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e9p c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 c\u1ee7a d\u1eef li\u1ec7u \u0111\u1ed1i v\u1edbi d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m. \u0110\u1ed9 tin c\u1eady c\u1ee7a Oracle c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nhi\u1ec1u ngu\u1ed3n d\u1eef li\u1ec7u cho c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c v\u00e0 danh ti\u1ebfng. Do \u0111\u00f3, si\u00eau d\u1eef li\u1ec7u blockchain c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o ra hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n h\u01a1n v\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a c\u00e1c giao th\u1ee9c b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd, c\u00f4ng ngh\u1ec7 s\u00e1ng t\u1ea1o v\u00e0 thi\u1ebft k\u1ebf c\u1ea9n th\u1eadn.<\/span><\/p>\n<p><span style=\"font-weight: 400\">C\u1ea3m \u01a1n s\u1ef1 theo d\u00f5i v\u00e0 \u0111\u00f3n \u0111\u1ecdc c\u1ee7a c\u00e1c b\u1ea1n. \u0110\u1eebng qu\u00ean, m\u1ecdi th\u1eafc v\u1ec1 th\u1ecb tr\u01b0\u1eddng ti\u1ec1n k\u1ef9 thu\u1eadt s\u1ed1, 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>Metadata trong c\u00e1c giao d\u1ecbch blockchain, \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch D\u1eef li\u1ec7u ho\u1eb7c th\u00f4ng tin b\u1ed5 sung c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o giao d\u1ecbch ti\u1ec1n \u0111i\u1ec7n t\u1eed tr\u00ean blockchain \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 si\u00eau d\u1eef li\u1ec7u (metadata) trong giao d\u1ecbch blockchain. M\u1eb7c d\u00f9 ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a blockchain l\u00e0 ghi l\u1ea1i v\u00e0 x\u00e1c th\u1ef1c vi\u1ec7c chuy\u1ec3n giao<\/p>\n","protected":false},"author":24,"featured_media":25350,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21850],"tags":[2740,3150,23101,13057,23102],"class_list":{"0":"post-23670","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-tu-dien-crypto","8":"tag-blockchain","9":"tag-crypto","10":"tag-metadata","11":"tag-nft","12":"tag-oracles"},"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>Th\u1ebf n\u00e0o l\u00e0 metadata trong giao d\u1ecbch Blockchain?\u00a0 - Fiahub<\/title>\n<meta name=\"description\" content=\"D\u1eef li\u1ec7u ho\u1eb7c th\u00f4ng tin b\u1ed5 sung c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o giao d\u1ecbch ti\u1ec1n \u0111i\u1ec7n t\u1eed tr\u00ean blockchain \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 si\u00eau d\u1eef li\u1ec7u (metadata) trong giao d\u1ecbch blockchain.\" \/>\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\/the-nao-la-metadata-trong-giao-dich-blockchain\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Th\u1ebf n\u00e0o l\u00e0 metadata trong giao d\u1ecbch Blockchain?\u00a0\" \/>\n<meta property=\"og:description\" content=\"D\u1eef li\u1ec7u ho\u1eb7c th\u00f4ng tin b\u1ed5 sung c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o giao d\u1ecbch ti\u1ec1n \u0111i\u1ec7n t\u1eed tr\u00ean blockchain \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 si\u00eau d\u1eef li\u1ec7u (metadata) trong giao d\u1ecbch blockchain.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fiahub.com\/blog\/the-nao-la-metadata-trong-giao-dich-blockchain\/\" \/>\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=\"2023-11-20T03:05:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T09:21:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fiahub.com\/blog\/wp-content\/uploads\/2023\/11\/Fiahub_Glossary_Metadata.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\\\/the-nao-la-metadata-trong-giao-dich-blockchain\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/the-nao-la-metadata-trong-giao-dich-blockchain\\\/\"},\"author\":{\"name\":\"Le Hoang\",\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/#\\\/schema\\\/person\\\/438ca2054bd04d8ef374b9dd54ed3418\"},\"headline\":\"Th\u1ebf n\u00e0o l\u00e0 metadata trong giao d\u1ecbch Blockchain?\u00a0\",\"datePublished\":\"2023-11-20T03:05:53+00:00\",\"dateModified\":\"2024-03-22T09:21:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/the-nao-la-metadata-trong-giao-dich-blockchain\\\/\"},\"wordCount\":4166,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/the-nao-la-metadata-trong-giao-dich-blockchain\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/Fiahub_Glossary_Metadata.png\",\"keywords\":[\"Blockchain\",\"crypto\",\"metadata\",\"nft\",\"oracles\"],\"articleSection\":[\"T\u1eeb \u0111i\u1ec3n Crypto\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/the-nao-la-metadata-trong-giao-dich-blockchain\\\/\",\"url\":\"https:\\\/\\\/www.fiahub.com\\\/blog\\\/the-nao-la-metadata-trong-giao-dich-blockchain\\\/\",\"name\":\"Th\u1ebf n\u00e0o l\u00e0 metadata trong giao d\u1ecbch Blockchain?\u00a0 - 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