{"id":37253,"date":"2026-05-29T09:57:05","date_gmt":"2026-05-29T09:57:05","guid":{"rendered":"https:\/\/volity.io\/non-classifiee\/what-is-a-fork-blockchain\/"},"modified":"2026-05-29T09:57:43","modified_gmt":"2026-05-29T09:57:43","slug":"what-is-a-fork-blockchain","status":"publish","type":"post","link":"https:\/\/volity.io\/fr\/glossaire\/what-is-a-fork-blockchain\/","title":{"rendered":"Qu&rsquo;est-ce qu&rsquo;un fork en crypto"},"content":{"rendered":"<h2>Comment \u00e7a fonctionne<\/h2>\n<p>Les r\u00e8gles de la blockchain sont encod\u00e9es dans le logiciel des n\u0153uds. Quand des d\u00e9veloppeurs proposent de nouvelles r\u00e8gles, les op\u00e9rateurs de n\u0153uds d\u00e9cident s&rsquo;ils mettent \u00e0 jour. Un soft fork resserre les r\u00e8gles, de sorte que les anciens n\u0153uds acceptent la nouvelle cha\u00eene mais ne peuvent pas y produire de blocs. Un hard fork desserre ou modifie les r\u00e8gles d&rsquo;une mani\u00e8re que les anciens n\u0153uds rejettent ; la cha\u00eene se divise en deux si une part significative des op\u00e9rateurs refuse la mise \u00e0 jour.<\/p>\n<h2>Exemple<\/h2>\n<p>Bitcoin Cash a fork\u00e9 de Bitcoin en ao\u00fbt 2017 comme hard fork sur les limites de taille de bloc. Deux cha\u00eenes s\u00e9par\u00e9es existent aujourd&rsquo;hui, toutes deux descendant du m\u00eame historique avant la s\u00e9paration. Ethereum et Ethereum Classic se sont s\u00e9par\u00e9s en 2016 apr\u00e8s un hard fork annulant les transactions affect\u00e9es par le hack DAO. Les soft forks sont en g\u00e9n\u00e9ral moins dramatiques : SegWit sur Bitcoin en 2017 a activ\u00e9 de nouvelles fonctionnalit\u00e9s sans diviser la cha\u00eene.<\/p>\n<h2>Pourquoi c&rsquo;est important<\/h2>\n<p>Les forks sont la fa\u00e7on dont les protocoles d\u00e9centralis\u00e9s \u00e9voluent. Ils redistribuent aussi l&rsquo;enjeu \u00e9conomique : les d\u00e9tenteurs de la pi\u00e8ce pr\u00e9-fork re\u00e7oivent des soldes \u00e9gaux sur les deux cha\u00eenes post-fork. Les forks majeurs peuvent \u00eatre des mises \u00e0 niveau largement accept\u00e9es par la communaut\u00e9 ou des s\u00e9parations conflictuelles qui fragmentent valeur et communaut\u00e9. Quand vous tenez \u00e0 travers un fork, v\u00e9rifiez que votre wallet ou exchange supporte les deux nouvelles cha\u00eenes ; certains ne cr\u00e9ditent qu&rsquo;un seul c\u00f4t\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comment \u00e7a fonctionne Les r\u00e8gles de la blockchain sont encod\u00e9es dans le logiciel des n\u0153uds. Quand des d\u00e9veloppeurs proposent de nouvelles r\u00e8gles, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":37375,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"custom_schema":"","footnotes":""},"categories":[258],"tags":[],"class_list":["post-37253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossaire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Qu&#039;est-ce qu&#039;un fork en crypto<\/title>\n<meta name=\"description\" content=\"Un fork est un changement des r\u00e8gles de protocole blockchain. Soft forks r\u00e9tro-compatibles ; hard forks divisent la cha\u00eene. 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