{"id":36605,"date":"2018-02-22T10:00:44","date_gmt":"2018-02-22T09:00:44","guid":{"rendered":"http:\/\/e3mag.com\/?p=33886"},"modified":"2024-01-19T14:52:22","modified_gmt":"2024-01-19T13:52:22","slug":"quest-ce-que-la-blockchain","status":"publish","type":"post","link":"https:\/\/e3mag.com\/fr\/was-ist-blockchain\/","title":{"rendered":"Qu'est-ce que la blockchain ?"},"content":{"rendered":"

La concat\u00e9nation est effectu\u00e9e par des entr\u00e9es de hachage cryptographiques, une sorte de somme de contr\u00f4le. Chaque entr\u00e9e de hachage est cr\u00e9\u00e9e \u00e0 partir de tous les enregistrements d'une entr\u00e9e de liste et est conserv\u00e9e aussi bien dans l'entr\u00e9e de liste pr\u00e9c\u00e9dente que dans l'entr\u00e9e de liste suivante. Les entr\u00e9es de la liste sont ainsi soud\u00e9es entre elles de mani\u00e8re inalt\u00e9rable, comme une cha\u00eene.<\/p>\n

De plus, la blockchain est un syst\u00e8me de stockage de donn\u00e9es enti\u00e8rement redondant. Toutes les donn\u00e9es se trouvent chez tous les participants du r\u00e9seau et sont synchronis\u00e9es en permanence.<\/p>\n

Mais la v\u00e9ritable quintessence r\u00e9side dans la programmabilit\u00e9 du r\u00e9seau via des contrats intelligents. Un smart contract est un petit programme qui est introduit dans la blockchain et qui y est conserv\u00e9 de mani\u00e8re redondante et inalt\u00e9rable, comme les autres donn\u00e9es.<\/p>\n

L'interaction entre les contrats intelligents, les donn\u00e9es et les \u00e9v\u00e9nements, c'est-\u00e0-dire des \u00e9v\u00e9nements d\u00e9finis au pr\u00e9alable, permet de reproduire certains processus de mani\u00e8re infalsifiable et fiable, ce qui n'\u00e9tait jusqu'alors r\u00e9alisable que par le biais d'interm\u00e9diaires.<\/p>\n

\"https:\/\/e3mag.com\/partners\/camelot-itlab-gmbh\/\"<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Avec la blockchain, nous parlons d'une technologie aux caract\u00e9ristiques disruptives. Il s'agit d'une liste cha\u00een\u00e9e dans laquelle chaque entr\u00e9e de la liste (bloc) peut contenir un ou plusieurs enregistrements.<\/p>","protected":false},"author":1406,"featured_media":36808,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pmpro_default_level":"","footnotes":""},"categories":[2,20719,161],"tags":[887,886,1177],"coauthors":[21847],"class_list":["post-36605","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sap-nachrichten","category-mag-1803","category-szene","tag-bitcoin","tag-blockchain","tag-disruptiv","pmpro-has-access"],"acf":[],"featured_image_urls_v2":{"full":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"thumbnail":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-150x150.jpg",150,150,true],"medium":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",400,172,false],"medium_large":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-768x329.jpg",768,329,true],"large":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"image-100":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-100x43.jpg",100,43,true],"image-480":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-480x206.jpg",480,206,true],"image-640":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-640x275.jpg",640,275,true],"image-720":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-720x309.jpg",720,309,true],"image-960":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-960x412.jpg",960,412,true],"image-1168":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"image-1440":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"image-1920":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"1536x1536":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"2048x2048":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"trp-custom-language-flag":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",18,8,false],"bricks_large_16x9":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"bricks_large":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"bricks_large_square":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",1000,429,false],"bricks_medium":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",600,257,false],"bricks_medium_square":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain.jpg",600,257,false],"profile_24":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-24x24.jpg",24,24,true],"profile_48":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-48x48.jpg",48,48,true],"profile_96":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-96x96.jpg",96,96,true],"profile_150":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-150x150.jpg",150,150,true],"profile_300":["https:\/\/e3mag.com\/wp-content\/uploads\/2018\/04\/shutterstock_760467970_chain-300x300.jpg",300,300,true]},"post_excerpt_stackable_v2":"

Bei Blockchain sprechen wir von einer Technologie mit disruptiven Eigenschaften. Es handelt sich dabei um eine verkettete Liste, bei der jeder Listeneintrag (Block) einen oder mehrere Datens\u00e4tze umfassen kann.<\/p>\n","category_list_v2":"Community Nachrichten<\/a>, MAG 18-03<\/a>, Szene<\/a>","author_info_v2":{"name":"Dr Josef Packowski, Camelot","url":"https:\/\/e3mag.com\/fr\/author\/josef-packowski\/"},"comments_num_v2":"0 commentaire","_links":{"self":[{"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/posts\/36605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/users\/1406"}],"replies":[{"embeddable":true,"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/comments?post=36605"}],"version-history":[{"count":1,"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/posts\/36605\/revisions"}],"predecessor-version":[{"id":138148,"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/posts\/36605\/revisions\/138148"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/media\/36808"}],"wp:attachment":[{"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/media?parent=36605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/categories?post=36605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/tags?post=36605"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/e3mag.com\/fr\/wp-json\/wp\/v2\/coauthors?post=36605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}