{"id":992,"date":"2021-03-16T01:33:22","date_gmt":"2021-03-16T01:33:22","guid":{"rendered":"http:\/\/cafe2sach.com\/?p=992"},"modified":"2021-04-29T12:34:31","modified_gmt":"2021-04-29T11:34:31","slug":"bitcoin-hoat-dong-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/cafe2sach.com\/index.php\/2021\/03\/16\/bitcoin-hoat-dong-nhu-the-nao\/","title":{"rendered":"Bitcoin ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"\n<p><div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">N\u1ed9i dung ch&iacute;nh<\/p><ul class=\"toc_list\"><li><a href=\"#Giao_dich_Khoi_Khai_thac_va_Blockchain\"><span class=\"toc_number toc_depth_1\">1<\/span> Giao d\u1ecbch, Kh\u1ed1i, Khai th\u00e1c v\u00e0 Blockchain<\/a><\/li><li><a href=\"#Mua_mot_coc_cafe_voi_Bitcoin\"><span class=\"toc_number toc_depth_1\">2<\/span> Mua m\u1ed9t c\u1ed1c cafe v\u1edbi Bitcoin <\/a><ul><li><a href=\"#Giao_dich_Bitcoin\"><span class=\"toc_number toc_depth_2\">2.1<\/span>  Giao d\u1ecbch Bitcoin <\/a><\/li><\/ul><\/li><li><a href=\"#Dau_vao_va_dau_ra_cua_giao_dich\"><span class=\"toc_number toc_depth_1\">3<\/span> \u0110\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a giao d\u1ecbch<\/a><\/li><li><a href=\"#Chuoi_giao_dich_Bitcoin\"><span class=\"toc_number toc_depth_1\">4<\/span>  Chu\u1ed5i giao d\u1ecbch Bitcoin <\/a><\/li><\/ul><\/div>\n<h1><span id=\"Giao_dich_Khoi_Khai_thac_va_Blockchain\">Giao d\u1ecbch, Kh\u1ed1i, Khai th\u00e1c v\u00e0 Blockchain<\/span><\/h1><\/p>\n\n\n\n<p>H\u1ec7 th\u1ed1ng bitcoin, kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng thanh to\u00e1n v\u00e0 ng\u00e2n h\u00e0ng truy\u1ec1n th\u1ed1ng, d\u1ef1a tr\u00ean \u1ee7y th\u00e1c phi t\u1eadp trung. Thay v\u00ec m\u1ed9t c\u01a1 quan \u0111\u00e1ng tin c\u1eady trung \u01b0\u01a1ng, trong bitcoin, s\u1ef1 tin t\u01b0\u1edfng \u0111\u1ea1t \u0111\u01b0\u1ee3c<br>nh\u01b0 m\u1ed9t t\u00e0i s\u1ea3n n\u1ed5i l\u00ean t\u1eeb s\u1ef1 t\u01b0\u01a1ng t\u00e1c c\u1ee7a nh\u1eefng ng\u01b0\u1eddi tham gia kh\u00e1c nhau trong bitcoin h\u1ec7 th\u1ed1ng. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd ki\u1ec3m tra bitcoin t\u1eeb c\u1ea5p \u0111\u1ed9 cao b\u1eb1ng c\u00e1ch theo d\u00f5i m\u1ed9t giao d\u1ecbch th\u00f4ng qua h\u1ec7 th\u1ed1ng bitcoin v\u00e0 xem khi n\u00f3 tr\u1edf n\u00ean &#8220;\u0111\u00e1ng tin c\u1eady&#8221; v\u00e0 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn b\u1edfi c\u01a1 ch\u1ebf \u0111\u1ed3ng thu\u1eadn ph\u00e2n t\u00e1n c\u1ee7a bitcoin v\u00e0 cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c ghi l\u1ea1i<br>tr\u00ean blockchain, s\u1ed5 c\u00e1i ph\u00e2n t\u00e1n c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c giao d\u1ecbch. <\/p>\n\n\n\n<p>Trong s\u01a1 \u0111\u1ed3 t\u1ed5ng quan \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong H\u00ecnh sau <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"838\" height=\"486\" src=\"http:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-4.png\" alt=\"\" class=\"wp-image-993\" srcset=\"https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-4.png 838w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-4-600x348.png 600w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-4-300x174.png 300w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-4-768x445.png 768w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-4-696x404.png 696w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-4-724x420.png 724w\" sizes=\"(max-width: 838px) 100vw, 838px\" \/><figcaption>T\u1ed5ng quan v\u1ec1 Bitcoin<\/figcaption><\/figure>\n\n\n\n<p>ch\u00fang ta th\u1ea5y r\u1eb1ng h\u1ec7 th\u1ed1ng bitcoin bao g\u1ed3m c\u1ee7a ng\u01b0\u1eddi d\u00f9ng c\u00f3 v\u00ed ch\u1ee9a kh\u00f3a, c\u00e1c giao d\u1ecbch \u0111\u01b0\u1ee3c truy\u1ec1n tr\u00ean m\u1ea1ng\u2010 c\u00f4ng vi\u1ec7c v\u00e0 nh\u1eefng ng\u01b0\u1eddi khai th\u00e1c t\u1ea1o ra (th\u00f4ng qua t\u00ednh to\u00e1n c\u1ea1nh tranh) s\u1ef1 \u0111\u1ed3ng thu\u1eadn blockchain, l\u00e0 s\u1ed5 c\u00e1i c\u00f3 th\u1ea9m quy\u1ec1n c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c giao d\u1ecbch.<br>M\u1ed7i v\u00ed d\u1ee5 trong b\u00e0i vi\u1ebft n\u00e0y d\u1ef1a tr\u00ean m\u1ed9t giao d\u1ecbch th\u1ef1c t\u1ebf \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean bitcoin m\u1ea1ng, m\u00f4 ph\u1ecfng c\u00e1c t\u01b0\u01a1ng t\u00e1c gi\u1eefa nh\u1eefng ng\u01b0\u1eddi d\u00f9ng (Joe, Alice, Bob v\u00e0 Gopesh) b\u1eb1ng c\u00e1ch g\u1eedi ti\u1ec1n t\u1eeb v\u00ed n\u00e0y sang v\u00ed kh\u00e1c. Trong khi theo d\u00f5i m\u1ed9t giao d\u1ecbch th\u00f4ng qua m\u1ea1ng bitcoin v\u1edbi chu\u1ed7i kh\u1ed1i, ch\u00fang t\u00f4i s\u1ebd s\u1eed d\u1ee5ng m\u1ed9t trang web kh\u00e1m ph\u00e1 chu\u1ed7i kh\u1ed1i \u0111\u1ec3 h\u00ecnh dung\u2010 ize t\u1eebng b\u01b0\u1edbc. Tr\u00ecnh kh\u00e1m ph\u00e1 chu\u1ed7i kh\u1ed1i l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng web ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t bitcoin c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm, trong \u0111\u00f3 n\u00f3 cho ph\u00e9p b\u1ea1n t\u00ecm ki\u1ebfm \u0111\u1ecba ch\u1ec9, giao d\u1ecbch v\u00e0 kh\u1ed1i v\u00e0 xem c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 d\u00f2ng ch\u1ea3y gi\u1eefa ch\u00fang.<\/p>\n\n\n\n<p>C\u00e1c tr\u00ecnh kh\u00e1m ph\u00e1 blockchain ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<br>\u2022 Tr\u00ecnh kh\u00e1m ph\u00e1 kh\u1ed1i Bitcoin<br>\u2022 BlockCypher Explorer<br>\u2022 blockchain.info<br>\u2022 BitPay Insight<br>M\u1ed7i trong s\u1ed1 n\u00e0y c\u00f3 m\u1ed9t ch\u1ee9c n\u0103ng t\u00ecm ki\u1ebfm c\u00f3 th\u1ec3 l\u1ea5y \u0111\u1ecba ch\u1ec9 bitcoin, b\u0103m giao d\u1ecbch, s\u1ed1 kh\u1ed1i, ho\u1eb7c b\u0103m kh\u1ed1i v\u00e0 l\u1ea5y th\u00f4ng tin t\u01b0\u01a1ng \u1ee9ng t\u1eeb ti\u1ec1n \u0111i\u1ec7n t\u1eed.  V\u1edbi m\u1ed7i v\u00ed d\u1ee5 v\u1ec1 giao d\u1ecbch ho\u1eb7c kh\u1ed1i, ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p m\u1ed9t URL \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 m\u00ecnh tra c\u1ee9u v\u00e0 nghi\u00ean c\u1ee9u chi ti\u1ebft.<\/p>\n\n\n\n<p><h1><span id=\"Mua_mot_coc_cafe_voi_Bitcoin\">Mua m\u1ed9t c\u1ed1c cafe v\u1edbi Bitcoin <\/span><\/h1><\/p>\n\n\n\n<p>Alice l\u00e0 m\u1ed9t ng\u01b0\u1eddi d\u00f9ng m\u1edbi v\u1eeba c\u00f3 \u0111\u01b0\u1ee3c bitcoin \u0111\u1ea7u ti\u00ean c\u1ee7a m\u00ecnh. Trong \u201cNh\u1eadn Bitcoin \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n\u201d tr\u00ean trang 10, Alice \u0111\u00e3 g\u1eb7p g\u1ee1 ng\u01b0\u1eddi b\u1ea1n c\u1ee7a c\u00f4 \u1ea5y l\u00e0 Joe \u0111\u1ec3 \u0111\u1ed5i m\u1ed9t s\u1ed1 ti\u1ec1n m\u1eb7t l\u1ea5y bitcoin. Giao d\u1ecbch do Joe t\u1ea1o \u0111\u00e3 t\u00e0i tr\u1ee3 cho v\u00ed c\u1ee7a Alice v\u1edbi 0,10 BTC. B\u00e2y gi\u1edd Alice s\u1ebd th\u1ef1c hi\u1ec7n giao d\u1ecbch b\u00e1n l\u1ebb \u0111\u1ea7u ti\u00ean c\u1ee7a m\u00ecnh, mua m\u1ed9t t\u00e1ch c\u00e0 ph\u00ea t\u1ea1i c\u1eeda h\u00e0ng c\u00e0 ph\u00ea c\u1ee7a Bob \u1edf Palo Alto, California. Bob\u2019s Cafe g\u1ea7n \u0111\u00e2y \u0111\u00e3 b\u1eaft \u0111\u1ea7u ch\u1ea5p nh\u1eadn thanh to\u00e1n b\u1eb1ng bitcoin b\u1eb1ng c\u00e1ch th\u00eam t\u00f9y ch\u1ecdn bitcoin v\u00e0o h\u1ec7 th\u1ed1ng \u0111i\u1ec3m b\u00e1n h\u00e0ng c\u1ee7a h\u1ecd. Gi\u00e1 t\u1ea1i Bob\u2019s Cafe \u0111\u01b0\u1ee3c ni\u00eam y\u1ebft b\u1eb1ng n\u1ed9i t\u1ec7 (Hoa K\u1ef3 \u0111\u00f4 la), nh\u01b0ng t\u1ea1i s\u1ed5 \u0111\u0103ng k\u00fd, kh\u00e1ch h\u00e0ng c\u00f3 t\u00f9y ch\u1ecdn thanh to\u00e1n b\u1eb1ng \u0111\u00f4 la ho\u1eb7c bitcoin. Alice \u0111\u1eb7t m\u1ed9t t\u00e1ch c\u00e0 ph\u00ea c\u1ee7a c\u00f4 \u1ea5y v\u00e0 Bob nh\u1eadp n\u00f3 v\u00e0o s\u1ed5 \u0111\u0103ng k\u00fd, nh\u01b0  anh ta l\u00e0m cho t\u1ea5t c\u1ea3 c\u00e1c giao d\u1ecbch. H\u1ec7 th\u1ed1ng \u0111i\u1ec3m b\u00e1n h\u00e0ng t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i t\u1ed5ng<br>gi\u00e1 t\u1eeb \u0111\u00f4 la M\u1ef9 sang bitcoin theo t\u1ef7 gi\u00e1 th\u1ecb tr\u01b0\u1eddng ph\u1ed5 bi\u1ebfn v\u00e0 hi\u1ec3n th\u1ecb gi\u00e1 b\u1eb1ng c\u1ea3 hai lo\u1ea1i ti\u1ec1n t\u1ec7:<br>To\u00e0n b\u1ed9:<br>$ 1,50 USD<br>0,015 BTC<br>Bob n\u00f3i, &#8220;\u0110\u00f3 l\u00e0 m\u1ed9t \u0111\u00f4 la n\u0103m m\u01b0\u01a1i ho\u1eb7c m\u01b0\u1eddi l\u0103m milibit.&#8221;<br>H\u1ec7 th\u1ed1ng \u0111i\u1ec3m b\u00e1n h\u00e0ng c\u1ee7a Bob c\u0169ng s\u1ebd t\u1ef1 \u0111\u1ed9ng t\u1ea1o m\u00e3 QR \u0111\u1eb7c bi\u1ec7t ch\u1ee9a m\u1ed9t y\u00eau c\u1ea7u thanh to\u00e1n (xem H\u00ecnh QR code).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"http:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-5.png\" alt=\"\" class=\"wp-image-994\" width=\"359\" height=\"232\" srcset=\"https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-5.png 359w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-5-300x194.png 300w\" sizes=\"(max-width: 359px) 100vw, 359px\" \/><figcaption>QR code<\/figcaption><\/figure>\n\n\n\n<p><br>Kh\u00f4ng gi\u1ed1ng nh\u01b0 m\u00e3 QR ch\u1ec9 ch\u1ee9a \u0111\u1ecba ch\u1ec9 bitcoin \u0111\u00edch, kho\u1ea3n thanh to\u00e1n<br>y\u00eau c\u1ea7u l\u00e0 m\u1ed9t URL \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a QR ch\u1ee9a \u0111\u1ecba ch\u1ec9 \u0111\u00edch, s\u1ed1 ti\u1ec1n thanh to\u00e1n, v\u00e0 m\u00f4 t\u1ea3 chung chung, ch\u1eb3ng h\u1ea1n nh\u01b0 \u201cBob\u2019s Cafe\u201d. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p m\u1ed9t \u1ee9ng d\u1ee5ng v\u00ed bitcoin \u0111i\u1ec1n tr\u01b0\u1edbc th\u00f4ng tin \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u1eedi thanh to\u00e1n trong khi hi\u1ec3n th\u1ecb th\u00f4ng tin con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c<br>m\u00f4 t\u1ea3 cho ng\u01b0\u1eddi d\u00f9ng. B\u1ea1n c\u00f3 th\u1ec3 qu\u00e9t m\u00e3 QR b\u1eb1ng \u1ee9ng d\u1ee5ng v\u00ed bitcoin \u0111\u1ec3 xem Alice s\u1ebd th\u1ea5y g\u00ec.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bitcoin:1GdK9UzpHBzqzX2A9JFP3Di4weBwqgmoQA?\namount=0.015&amp;\nlabel=Bob%27s%20Cafe&amp;\nmessage=Purchase%20at%20Bob%27s%20Cafe\nComponents of the URL\nA bitcoin address: \"1GdK9UzpHBzqzX2A9JFP3Di4weBwqgmoQA\"\nThe payment amount: \"0.015\"\nA label for the recipient address: \"Bob's Cafe\"\nA description for the payment: \"Purchase at Bob's Cafe\"\n\n\n<\/code><\/pre>\n\n\n\n<p>Alice s\u1eed d\u1ee5ng \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u1ee7a m\u00ecnh \u0111\u1ec3 qu\u00e9t m\u00e3 v\u1ea1ch tr\u00ean m\u00e0n h\u00ecnh. \u0110i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u1ee7a c\u00f4 \u1ea5y hi\u1ec3n th\u1ecb m\u1ed9t thanh to\u00e1n 0,0150 BTC cho Bob\u2019s Cafe v\u00e0 c\u00f4 \u1ea5y ch\u1ecdn G\u1eedi \u0111\u1ec3 cho ph\u00e9p thanh to\u00e1n.<br>Trong v\u00f2ng v\u00e0i gi\u00e2y (kho\u1ea3ng th\u1eddi gian t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi \u1ee7y quy\u1ec1n th\u1ebb t\u00edn d\u1ee5ng), Bob nh\u00ecn th\u1ea5y giao d\u1ecbch tr\u00ean s\u1ed5 \u0111\u0103ng k\u00fd, ho\u00e0n t\u1ea5t giao d\u1ecbch.<br><\/p>\n\n\n\n<p>M\u1ea1ng bitcoin c\u00f3 th\u1ec3 giao d\u1ecbch theo c\u00e1c gi\u00e1 tr\u1ecb ph\u00e2n s\u1ed1, v\u00ed d\u1ee5: t\u1eeb<br>millibitcoin (1\/1000 bitcoin) xu\u1ed1ng 1 \/ 100.000.000 bitcoin, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 satoshi. Ch\u00fang t\u00f4i s\u1ebd s\u1eed d\u1ee5ng thu\u1eadt ng\u1eef \u201cbitcoin\u201d \u0111\u1ec3 ch\u1ec9 b\u1ea5t k\u1ef3 s\u1ed1 l\u01b0\u1ee3ng ti\u1ec1n t\u1ec7 bitcoin n\u00e0o, t\u1eeb \u0111\u01a1n v\u1ecb nh\u1ecf nh\u1ea5t (1 satoshi) \u0111\u1ebfn t\u1ed5ng s\u1ed1 (21.000.000) c\u1ee7a t\u1ea5t c\u1ea3 bitcoin c\u00f3 th\u1ec3 ch\u01b0a t\u1eebng \u0111\u01b0\u1ee3c khai th\u00e1c.<\/p>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra giao d\u1ecbch c\u1ee7a Alice \u0111\u1ebfn Bob\u2019s Cafe tr\u00ean blockchain b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t kh\u1ed1i trang web blockexplorer.com<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>https:&#47;&#47;blockexplorer.com\/tx\/\n0627052b6f28912f2703066a912ea577f2ce4da4caa5a5fbd8a57286c345c2f2\n<\/code><\/pre>\n\n\n\n<h2><span id=\"Giao_dich_Bitcoin\"> Giao d\u1ecbch Bitcoin <\/span><\/h2>\n\n\n\nN\u00f3i m\u1ed9t c\u00e1ch d\u1ec5 hi\u1ec3u, m\u1ed9t giao d\u1ecbch cho m\u1ea1ng bi\u1ebft r\u1eb1ng ch\u1ee7 s\u1edf h\u1eefu c\u1ee7a m\u1ed9t s\u1ed1 gi\u00e1 tr\u1ecb bitcoin \u0111\u00e3 \u1ee7y quy\u1ec1n chuy\u1ec3n nh\u01b0\u1ee3ng gi\u00e1 tr\u1ecb \u0111\u00f3 cho ch\u1ee7 s\u1edf h\u1eefu kh\u00e1c. Ch\u1ee7 s\u1edf h\u1eefu m\u1edbi b\u00e2y gi\u1edd c\u00f3 th\u1ec3 ti\u00eau bitcoin b\u1eb1ng c\u00e1ch t\u1ea1o m\u1ed9t giao d\u1ecbch kh\u00e1c cho ph\u00e9p chuy\u1ec3n sang m\u1ed9t ch\u1ee7 s\u1edf h\u1eefu, v.v., trong m\u1ed9t chu\u1ed7i s\u1edf h\u1eefu.\n<h1><span id=\"Dau_vao_va_dau_ra_cua_giao_dich\">\u0110\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a giao d\u1ecbch<\/span><\/h1>\nC\u00e1c giao d\u1ecbch gi\u1ed1ng nh\u01b0 c\u00e1c d\u00f2ng trong s\u1ed5 c\u00e1i k\u1ebf to\u00e1n ghi s\u1ed5 k\u00e9p. M\u1ed7i giao d\u1ecbch<br>ch\u1ee9a m\u1ed9t ho\u1eb7c nhi\u1ec1u \u201c\u0111\u1ea7u v\u00e0o\u201d, gi\u1ed1ng nh\u01b0 ghi n\u1ee3 \u0111\u1ed1i v\u1edbi t\u00e0i kho\u1ea3n bitcoin. Tr\u00ean<br>m\u1eb7t kh\u00e1c c\u1ee7a giao d\u1ecbch, c\u00f3 m\u1ed9t ho\u1eb7c nhi\u1ec1u &#8220;\u0111\u1ea7u ra&#8221;, gi\u1ed1ng nh\u01b0 t\u00edn d\u1ee5ng<br>\u0111\u00e3 th\u00eam v\u00e0o t\u00e0i kho\u1ea3n bitcoin. C\u00e1c \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra (ghi n\u1ee3 v\u00e0 t\u00edn d\u1ee5ng) kh\u00f4ng c\u1ea7n thi\u1ebft\u2010<br>t\u1ea1m th\u1eddi c\u1ed9ng l\u00ean \u0111\u1ebfn c\u00f9ng m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng. Thay v\u00e0o \u0111\u00f3, \u0111\u1ea7u ra c\u1ed9ng l\u1ea1i \u00edt h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi \u0111\u1ea7u v\u00e0o<br>v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t th\u1ec3 hi\u1ec7n m\u1ed9t kho\u1ea3n ph\u00ed giao d\u1ecbch ng\u1ee5 \u00fd, l\u00e0 m\u1ed9t kho\u1ea3n thanh to\u00e1n nh\u1ecf<br>\u0111\u01b0\u1ee3c cho b\u1edfi ng\u01b0\u1eddi khai th\u00e1c bao g\u1ed3m giao d\u1ecbch trong s\u1ed5 c\u00e1i. M\u1ed9t giao d\u1ecbch bitcoin<br>\u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n nh\u01b0 m\u1ed9t m\u1ee5c nh\u1eadp s\u1ed5 c\u00e1i k\u1ebf to\u00e1n trong H\u00ecnh 2-3.<br>Giao d\u1ecbch c\u0169ng ch\u1ee9a b\u1eb1ng ch\u1ee9ng v\u1ec1 quy\u1ec1n s\u1edf h\u1eefu \u0111\u1ed1i v\u1edbi m\u1ed7i l\u01b0\u1ee3ng bitcoin (\u0111\u1ea7u v\u00e0o)<br>m\u00e0 gi\u00e1 tr\u1ecb \u0111ang \u0111\u01b0\u1ee3c chi ti\u00eau, d\u01b0\u1edbi d\u1ea1ng ch\u1eef k\u00fd \u0111i\u1ec7n t\u1eed t\u1eeb ch\u1ee7 s\u1edf h\u1eefu,<\/p> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn \u0111\u1ed9c l\u1eadp b\u1edfi b\u1ea5t k\u1ef3 ai. Theo thu\u1eadt ng\u1eef bitcoin, &#8220;chi ti\u00eau&#8221; l\u00e0 k\u00fd k\u1ebft\ngiao d\u1ecbch chuy\u1ec3n gi\u00e1 tr\u1ecb t\u1eeb giao d\u1ecbch tr\u01b0\u1edbc \u0111\u00f3 sang ch\u1ee7 s\u1edf h\u1eefu m\u1edbi\n\u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ed9t \u0111\u1ecba ch\u1ec9 bitcoin.\n\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"730\" height=\"488\" src=\"http:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-6.png\" alt=\"\" class=\"wp-image-995\" srcset=\"https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-6.png 730w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-6-600x401.png 600w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-6-300x201.png 300w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-6-696x465.png 696w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-6-628x420.png 628w\" sizes=\"(max-width: 730px) 100vw, 730px\" \/><figcaption>Giao d\u1ecbch nh\u01b0 m\u1ed9t s\u1ed5 c\u00e1i to\u00e1n K\u00e9p<\/figcaption><\/figure>\n\n\n\n<h1><span id=\"Chuoi_giao_dich_Bitcoin\"> Chu\u1ed5i giao d\u1ecbch Bitcoin <\/span><\/h1>\n\n\n\n<p>Thanh to\u00e1n c\u1ee7a Alice cho Bob\u2019s Cafe s\u1eed d\u1ee5ng \u0111\u1ea7u ra c\u1ee7a giao d\u1ecbch tr\u01b0\u1edbc \u0111\u00f3 l\u00e0m \u0111\u1ea7u v\u00e0o. Alice \u0111\u00e3 nh\u1eadn bitcoin t\u1eeb ng\u01b0\u1eddi b\u1ea1n Joe c\u1ee7a c\u00f4 \u1ea5y \u0111\u1ec3 \u0111\u1ed5i l\u1ea5y ti\u1ec1n m\u1eb7t. C\u00e1i \u0111\u00f3 giao d\u1ecbch \u0111\u00e3 t\u1ea1o ra m\u1ed9t gi\u00e1 tr\u1ecb bitcoin b\u1ecb kh\u00f3a b\u1edfi kh\u00f3a c\u1ee7a Alice. Giao d\u1ecbch m\u1edbi c\u1ee7a c\u00f4 \u1ea5y v\u1edbi Bob&#8217;s Cafe tham chi\u1ebfu giao d\u1ecbch tr\u01b0\u1edbc \u0111\u00f3 l\u00e0m \u0111\u1ea7u v\u00e0o v\u00e0 t\u1ea1o \u0111\u1ea7u ra m\u1edbi \u0111\u1ec3 thanh to\u00e1n cho t\u00e1ch c\u00e0 ph\u00ea v\u00e0 nh\u1eadn ti\u1ec1n l\u1ebb. C\u00e1c giao d\u1ecbch t\u1ea1o th\u00e0nh m\u1ed9t chu\u1ed7i, n\u01a1i<br>\u0111\u1ea7u v\u00e0o t\u1eeb giao d\u1ecbch g\u1ea7n nh\u1ea5t t\u01b0\u01a1ng \u1ee9ng v\u1edbi \u0111\u1ea7u ra t\u1eeb c\u00e1c giao d\u1ecbch tr\u01b0\u1edbc \u0111\u00f3.<br>Kh\u00f3a c\u1ee7a Alice cung c\u1ea5p ch\u1eef k\u00fd \u0111\u1ec3 m\u1edf kh\u00f3a c\u00e1c \u0111\u1ea7u ra giao d\u1ecbch tr\u01b0\u1edbc \u0111\u00f3, qua \u0111\u00f3 ch\u1ee9ng minh v\u1edbi m\u1ea1ng bitcoin r\u1eb1ng c\u00f4 \u1ea5y s\u1edf h\u1eefu c\u00e1c kho\u1ea3n ti\u1ec1n. C\u00f4 \u1ea5y \u0111\u00ednh k\u00e8m ti\u1ec1n c\u00f4ng\u2010 \u0111\u01b0a c\u00e0 ph\u00ea \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 c\u1ee7a Bob, do \u0111\u00f3 &#8220;m\u00e3 h\u00f3a&#8221; \u0111\u1ea7u ra v\u1edbi y\u00eau c\u1ea7u\u2010 \u0111\u1ec1 c\u1eadp r\u1eb1ng Bob t\u1ea1o ra m\u1ed9t ch\u1eef k\u00fd \u0111\u1ec3 chi ti\u00eau s\u1ed1 ti\u1ec1n \u0111\u00f3. \u0110i\u1ec1u n\u00e0y \u0111\u1ea1i di\u1ec7n cho m\u1ed9t chuy\u1ec3n gi\u00e1 tr\u1ecb gi\u1eefa Alice v\u00e0 Bob. Chu\u1ed7i giao d\u1ecbch n\u00e0y, t\u1eeb Joe \u0111\u1ebfn Alice cho Bob, \u0111\u01b0\u1ee3c minh h\u1ecda trong hinh d\u01b0\u1edbi \u0111\u1ea5y<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"832\" height=\"526\" src=\"http:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-7.png\" alt=\"\" class=\"wp-image-996\" srcset=\"https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-7.png 832w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-7-600x379.png 600w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-7-300x190.png 300w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-7-768x486.png 768w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-7-696x440.png 696w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/03\/image-7-664x420.png 664w\" sizes=\"(max-width: 832px) 100vw, 832px\" \/><\/figure>\n\n\n\n<p>&#8230;.<\/p>\n\n\n\n<p><em>Source: Chapter 2 Mastering Bitcoin<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u1ed9i dung ch&iacute;nh1 Giao d\u1ecbch, Kh\u1ed1i, Khai th\u00e1c v\u00e0 Blockchain2 Mua m\u1ed9t c\u1ed1c cafe v\u1edbi Bitcoin 2.1 Giao d\u1ecbch Bitcoin [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":993,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[251,111],"tags":[266,262,267,269],"class_list":["post-992","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-an-ninh-mang-cyber-security","category-tin-tuc-4-0","tag-bitcoin-hoat-dong","tag-bitcoin-la-gi","tag-hoat-dot-cua-bitcoin","tag-tien-dien-tu"],"_links":{"self":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/992","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/comments?post=992"}],"version-history":[{"count":3,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/992\/revisions"}],"predecessor-version":[{"id":1048,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/992\/revisions\/1048"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/media\/993"}],"wp:attachment":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/media?parent=992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/categories?post=992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/tags?post=992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}