{"id":1878,"date":"2018-04-30T11:00:11","date_gmt":"2018-04-30T09:00:11","guid":{"rendered":"https:\/\/profesionalhosting.com\/blog\/?p=1878"},"modified":"2023-04-25T13:35:38","modified_gmt":"2023-04-25T11:35:38","slug":"cadena-de-bloques-que-es-el-blockchain","status":"publish","type":"post","link":"https:\/\/www.profesionalhosting.com\/blog\/hosting\/cadena-de-bloques-que-es-el-blockchain\/","title":{"rendered":"Cadena de bloques: \u00bfqu\u00e9 es el blockchain?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 ez-toc-wrap-left-text counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Tabla de contenidos<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<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.profesionalhosting.com\/blog\/hosting\/cadena-de-bloques-que-es-el-blockchain\/#%C2%BFQue_es_el_Blockchain_o_cadena_de_bloques\" >\u00bfQu\u00e9 es el Blockchain o cadena de bloques?<\/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.profesionalhosting.com\/blog\/hosting\/cadena-de-bloques-que-es-el-blockchain\/#Funcionamiento_del_blockchain_o_cadena_de_bloques\" >Funcionamiento del\u00a0blockchain o cadena de bloques<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.profesionalhosting.com\/blog\/hosting\/cadena-de-bloques-que-es-el-blockchain\/#Con_todo_esto_en_cuenta_podemos_establecer_que_los_blockchain_o_cadena_de_bloques_funcionan_en_5_fases\" >Con todo esto en cuenta, podemos\u00a0 establecer que los\u00a0blockchain o cadena de bloques funcionan en 5 fases:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.profesionalhosting.com\/blog\/hosting\/cadena-de-bloques-que-es-el-blockchain\/#Que_aportan_los_blockchain_o_cadena_de_bloques\" >Qu\u00e9 aportan los\u00a0blockchain o cadena de bloques<\/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.profesionalhosting.com\/blog\/hosting\/cadena-de-bloques-que-es-el-blockchain\/#%C2%BFAcabar_con_en_anonimato_en_redes_sociales\" >\u00bfAcabar con en anonimato en redes sociales?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>El blockchain o cadena de bloques es una nueva manera de transferir datos. Su codificaci\u00f3n, m\u00e1s compleja que las conocidas hasta ahora, permite que dicha transferencia sea mucho m\u00e1s segura. Ahora, \u00bfc\u00f3mo nos afectar\u00e1 el blockchain?<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%C2%BFQue_es_el_Blockchain_o_cadena_de_bloques\"><\/span>\u00bfQu\u00e9 es el Blockchain o cadena de bloques?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Para comprender en qu\u00e9 consiste exactamente, se compara con la estructura de los libros contables, en los que se registran todos los movimientos econ\u00f3micos de una empresa. Pues bien, el blockchain ser\u00eda un <strong>figurado libro registro de movimientos digitales<\/strong>. La novedad que incorpora es que el blockchain no necesita de un intermediario que compruebe la informaci\u00f3n relativa a la transferencia de datos. Esta informaci\u00f3n se halla en nodos independientes entre ellos que realizan su propia validaci\u00f3n. Solo si todos ellos se pudieran de acuerdo la informaci\u00f3n podr\u00eda borrarse. Algo de todo punto imposible.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Funcionamiento_del_blockchain_o_cadena_de_bloques\"><\/span>Funcionamiento del\u00a0blockchain o cadena de bloques<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Antes de explicar el proceso de funcionamiento de los blockchains hay que hablar de los tres elementos b\u00e1sicos que forman parte de estos procesos.<\/p>\n<ul>\n<li>El sistema de\u00a0blockchain o cadena de bloques est\u00e1 compuesto por una <strong>red de ordenadores<\/strong>. No se trata de un \u00fanico servidor. Estos ordenadores son los que en el mundo del bitcoin se llaman mineros o miners.<\/li>\n<li>Existen unas <strong>reglas acordadas<\/strong> que determinan si cada operaci\u00f3n es o no v\u00e1lida.<\/li>\n<li>El <strong>Hash<\/strong> es el c\u00f3digo que sirve de sello a cada bloque, que adem\u00e1s contiene referencias a Hash anteriores a s\u00ed mismos. Esto es lo que forma la cadena de bloques y lo que a\u00f1ade el plus de seguridad.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Con_todo_esto_en_cuenta_podemos_establecer_que_los_blockchain_o_cadena_de_bloques_funcionan_en_5_fases\"><\/span>Con todo esto en cuenta, podemos\u00a0 establecer que los\u00a0blockchain o cadena de bloques funcionan en 5 fases:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li>Dos personas acuerdan llevar a cabo una <strong>transacci\u00f3n<\/strong>. Por ejemplo una compraventa de alg\u00fan bien digital.<\/li>\n<li><strong>Se crea el bloque<\/strong>: la transacci\u00f3n anterior se env\u00eda dentro de un bloque con otras transacciones pendientes. La reciben los ordenadores que conforman el sistema, los llamados mineros.<\/li>\n<li>Dichos ordenadores aplican determinados c\u00e1lculos matem\u00e1ticos para comprobar que las reglas acordadas se cumplen. Cuando todo el sistema llega al \u00abacuerdo\u00bb de que s\u00ed se cumplen, <strong>las operaciones se dan por validadas<\/strong>.<\/li>\n<li>Se aplica a cada bloque un <strong>Hash<\/strong>, el sello criptogr\u00e1fico que coment\u00e1bamos m\u00e1s arriba. Como todos los bloques incorporan referencias a Hashs de bloques anteriores, la cadena no se puede registrar.<\/li>\n<li>En \u00faltimo lugar se <strong>ejecuta la transacci\u00f3n<\/strong>. En este caso la compraventa.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"Que_aportan_los_blockchain_o_cadena_de_bloques\"><\/span>Qu\u00e9 aportan los\u00a0blockchain o cadena de bloques<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>En primer lugar un <strong>aumento de la seguridad en las compras online<\/strong>, ya que desaparece la posibilidad de llevar a cabo falsificaciones. Una vez un producto entre en una de estas cadenas de bloques, se le podr\u00e1 hacer un seguimiento exhaustivo desde su fabricaci\u00f3n hasta que llega al usuario final. As\u00ed se sabr\u00e1 que el producto recibido no es una copia.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%BFAcabar_con_en_anonimato_en_redes_sociales\"><\/span>\u00bfAcabar con en anonimato en redes sociales?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Si el acceso a internet pasase por el uso de una clave \u00fanica que sustituyese a todas las contrase\u00f1as de acceso de las que disponemos ahora y esa clave \u00fanica se encontrara en un\u00a0blockchain o cadena de bloques, el anonimato en redes se terminar\u00eda. Por lo tanto, es probable que <strong>desaparecieran los trolls<\/strong> y, por tanto, que aumentase la seguridad de los usuarios de la red.<\/p>\n<p>De momento esto no es viable o al menos no existe todav\u00eda, as\u00ed que en <strong>ProfesionalHosting<\/strong> te animamos a hacer un uso razonable de internet y a mantener tus contrase\u00f1as a salvo. Cuenta con nosotros si necesitas un <a href=\"https:\/\/www.profesionalhosting.com\/hosting\/\" target=\"_blank\" rel=\"noopener\">hosting seguro<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El blockchain o cadena de bloques es una nueva manera de transferir datos. Su codificaci\u00f3n, m\u00e1s compleja que las conocidas hasta ahora, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1879,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1878","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-hosting","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cadena de bloques: \u00bfqu\u00e9 es el blockchain? - ProfesionalHosting | blog<\/title>\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.profesionalhosting.com\/blog\/hosting\/cadena-de-bloques-que-es-el-blockchain\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cadena de bloques: \u00bfqu\u00e9 es el blockchain? - ProfesionalHosting | blog\" \/>\n<meta property=\"og:description\" content=\"El blockchain o cadena de bloques es una nueva manera de transferir datos. 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