{"id":779,"date":"2025-03-15T16:18:01","date_gmt":"2025-03-15T15:18:01","guid":{"rendered":"https:\/\/kryptozukunft.com\/?p=779"},"modified":"2025-05-29T17:44:39","modified_gmt":"2025-05-29T15:44:39","slug":"blockchains-de-couche-1","status":"publish","type":"post","link":"https:\/\/kryptozukunft.com\/fr\/2025\/03\/15\/blockchains-de-couche-1\/","title":{"rendered":"Cha\u00eenes de blocs de niveau 1"},"content":{"rendered":"<h1 class=\"wp-block-heading\" id=\"h-was-ist-layer-1-blockchain\">Qu'est-ce que la cha\u00eene de blocs de niveau 1 ?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Une <strong>Blockchain de niveau 1<\/strong> est la couche principale et de base d'un r\u00e9seau de cha\u00eenes de blocs. Elle traite les transactions directement sur sa propre cha\u00eene de blocs et ne n\u00e9cessite pas de couche suppl\u00e9mentaire pour la mise \u00e0 l'\u00e9chelle ou le r\u00e8glement. Les cha\u00eenes de blocs de couche 1 sont \u00e0 la base de nombreuses applications d\u00e9centralis\u00e9es (dApps) et de cryptomonnaies, car elles offrent une infrastructure s\u00fbre et autonome.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qu'est-ce que la cha\u00eene de blocs de niveau 1 ?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bitcoin, Ethereum, Solana et Avalanche sont des exemples de cha\u00eenes de blocs de niveau 1 connues. Ces r\u00e9seaux ont leurs propres m\u00e9canismes de consensus et s'auto-s\u00e9curisent sans le soutien de solutions externes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-merkmale-und-funktionen-von-layer-1-blockchains\">Caract\u00e9ristiques et fonctions des cha\u00eenes de blocs de niveau 1<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-eigenstandiges-konsensprotokoll\">1. protocole de consensus autonome<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les blockchains de niveau 1 utilisent leurs propres <strong>M\u00e9canismes de consensus<\/strong> pour valider les transactions. Elles d\u00e9terminent la mani\u00e8re dont les nouveaux blocs sont ajout\u00e9s \u00e0 la blockchain. Exemples :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bitcoin \u2192 <\/strong><a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/14\/proof-of-work\/\">Preuve de travail (PoW)<\/a> - S\u00e9curit\u00e9 \u00e9lev\u00e9e, mais \u00e9volutivit\u00e9 limit\u00e9e.<\/li>\n\n\n\n<li>Ethereum (depuis The Merge) \u2192 <a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/14\/proof-of-stake\/\">Preuve de l'enjeu (PoS)<\/a> - Plus efficace sur le plan \u00e9nerg\u00e9tique que le PoW, permet des transactions plus rapides.<\/li>\n\n\n\n<li>Solana \u2192 Proof of History (PoH) - m\u00e9canisme bas\u00e9 sur l'horodatage pour une grande rapidit\u00e9.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces m\u00e9canismes assurent la s\u00e9curit\u00e9 et la d\u00e9centralisation, mais influencent \u00e9galement l'\u00e9volutivit\u00e9 du r\u00e9seau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-verarbeitung-und-speicherung-von-transaktionen\">2. traitement et stockage des transactions<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les blockchains de niveau 1 g\u00e8rent leur propre grand livre et sont responsables du <strong>validation directe des transactions<\/strong> sans avoir besoin d'une deuxi\u00e8me couche. Ils doivent traiter efficacement un grand nombre de transactions, ce qui pose souvent des probl\u00e8mes d'\u00e9volutivit\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-unterstutzung-von-smart-contracts\">3. soutien aux contrats intelligents<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les blockchains de niveau 1 ne supportent pas toutes <a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/14\/smart-contracts\/\"><strong>Contrats intelligents<\/strong><\/a>. Alors que le bitcoin se concentre sur la s\u00e9curit\u00e9 et les transactions de paiement, Ethereum, Solana et Avalanche permettent des contrats programmables, indispensables pour les dApps et les projets DeFi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-bekannte-layer-1-blockchains\">Blockchains de niveau 1 connues<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Voici quelques-uns des r\u00e9seaux de couche 1 les plus connus et leurs particularit\u00e9s :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Blockchain<\/th><th>M\u00e9canisme de consensus<\/th><th>Caract\u00e9ristiques principales<\/th><\/tr><tr><td><a href=\"https:\/\/bitcoin.org\/de\/\" rel=\"nofollow noopener\" target=\"_blank\"><strong>Bitcoin<\/strong><\/a><\/td><td><a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/10\/proof-of-work-pow-explique-simplement-comment-fonctionne-le-minage-de-bitcoin-co\/\">Preuve de travail (PoW)<\/a><\/td><td>Bien s\u00fbr, <a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/10\/la-decentralisation-pourquoi-est-elle-au-coeur-de-la-blockchain\/\">d\u00e9centralis\u00e9<\/a>mais lentement<\/td><\/tr><tr><td><a href=\"https:\/\/ethereum.org\/en\/\" rel=\"nofollow noopener\" target=\"_blank\"><strong>Ethereum<\/strong><\/a><\/td><td><a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/10\/proof-of-stake-pos-explique-simplement-plus-efficace-plus-rapide-et-plus-ecologique-que-proof-of-work\/\">Preuve de l'enjeu (PoS)<\/a><\/td><td>Soutient <a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/10\/comment-les-smart-contracts-revolutionnent-notre-quotidien\/\">Contrats intelligents<\/a>, activit\u00e9 \u00e9lev\u00e9e<\/td><\/tr><tr><td><strong><a href=\"https:\/\/solana.org\/\" rel=\"nofollow noopener\" target=\"_blank\">Solana<\/a><\/strong><\/td><td>Preuve de l'histoire (PoH)<\/td><td>Haute vitesse, faibles frais<\/td><\/tr><tr><td><a href=\"https:\/\/www.avax.network\/\" rel=\"nofollow noopener\" target=\"_blank\"><strong>Avalanche<\/strong><\/a><\/td><td>PoS + DAG<\/td><td>\u00c9volutif, confirmations tr\u00e8s rapides<\/td><\/tr><tr><td><strong>Aptos<\/strong><\/td><td>PoS (Move-VM)<\/td><td>Focalisation sur l'\u00e9volutivit\u00e9 et la s\u00e9curit\u00e9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udd17 En savoir plus sur <a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/15\/kyc\/\"><strong>KYC<\/strong><\/a> et les exigences r\u00e9glementaires pour les blockchains de niveau 1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-herausforderungen-von-layer-1-blockchains\">Les d\u00e9fis des blockchains de niveau 1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les blockchains de niveau 1 sont confront\u00e9es \u00e0 un <strong><a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/10\/quest-ce-que-la-blockchain-avantages-et-defis\/\">Blockchain<\/a>-trilemme<\/strong> de la s\u00e9curit\u00e9, de la d\u00e9centralisation et de l'\u00e9volutivit\u00e9. Cela signifie que<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Haute s\u00e9curit\u00e9<\/strong> peut rendre l'\u00e9volutivit\u00e9 difficile (par exemple, Bitcoin est s\u00fbr mais lent).<\/li>\n\n\n\n<li><strong>Grande \u00e9volutivit\u00e9<\/strong> peut conduire \u00e0 moins de d\u00e9centralisation (par exemple, Solana est rapide, mais moins d\u00e9centralis\u00e9).<\/li>\n\n\n\n<li><strong>D\u00e9centralisation maximale<\/strong> peut r\u00e9duire l'efficacit\u00e9 du r\u00e9seau.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-losungen-fur-skalierungsprobleme\">Solutions aux probl\u00e8mes de mise \u00e0 l'\u00e9chelle<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour r\u00e9soudre ce trilemme, il existe diff\u00e9rentes approches :<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-sharding\">1. sharding<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Utiliser des blockchains comme Ethereum et NEAR <a href=\"https:\/\/kryptozukunft.com\/fr\/2025\/03\/14\/sharding\/\"><strong>Sharding<\/strong><\/a>Le syst\u00e8me de gestion de la base de donn\u00e9es permet de r\u00e9partir les charges de transaction sur plusieurs petites sections de la base de donn\u00e9es (shards). Cela augmente consid\u00e9rablement l'\u00e9volutivit\u00e9, car chaque shard traite les transactions en parall\u00e8le.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-layer-2-losungen\">2. solutions de la couche 2<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les technologies de couche 2 comme le <a href=\"https:\/\/bitcoin.org\/de\/\" rel=\"nofollow noopener\" target=\"_blank\"><strong>R\u00e9seau Lightning<\/strong><\/a> (Bitcoin) ou <a href=\"https:\/\/kryptokenner.de\/ethereum-zk-rollups\/\" rel=\"nofollow noopener\" target=\"_blank\"><strong>ZK rollups<\/strong><\/a> (Ethereum) permettent des transactions en dehors de la blockchain principale et soulagent ainsi les r\u00e9seaux de couche 1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-optimierte-konsensmechanismen\">3. m\u00e9canismes de consensus optimis\u00e9s<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">De nouveaux m\u00e9canismes de consensus comme la preuve d'enjeu d\u00e9l\u00e9gu\u00e9e (Delegated Proof of Stake, DPoS) ou <strong>Syst\u00e8mes hybrides de consensus<\/strong> combinent efficacit\u00e9 et s\u00e9curit\u00e9 et r\u00e9duisent la consommation d'\u00e9nergie et les frais de transaction.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-interoperabilitat-zwischen-blockchains\">4. interop\u00e9rabilit\u00e9 entre les blockchains<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Comme il existe de nombreuses blockchains, certains projets de couche 1 travaillent sur une <a href=\"https:\/\/de.wikipedia.org\/wiki\/Interoperabilit%C3%A4t\" rel=\"nofollow noopener\" target=\"_blank\">Interop\u00e9rabilit\u00e9<\/a>Le but est de permettre des transactions transparentes entre diff\u00e9rents r\u00e9seaux. Voici quelques exemples <strong>Polkadot<\/strong> et <strong>Cosmos<\/strong>Les syst\u00e8mes de paiement en ligne, qui fonctionnent avec des \"ponts\" entre les blockchains.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-fazit\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les blockchains de niveau 1 sont le <strong>Les fondements de la crypto-industrie<\/strong>. Ils offrent une s\u00e9curit\u00e9, une d\u00e9centralisation et, dans certains cas, une fonctionnalit\u00e9 de contrat intelligent. Les d\u00e9fis tels que <strong>\u00c9volutivit\u00e9<\/strong> sont de plus en plus am\u00e9lior\u00e9es par de nouvelles technologies telles que le sharding, les solutions de couche 2 et les m\u00e9canismes de consensus optimis\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 l'avenir, les progr\u00e8s en mati\u00e8re de preuve de connaissance z\u00e9ro, de communication inter-cha\u00eenes et d'adaptation des r\u00e9seaux bas\u00e9e sur l'IA pourraient rendre les blockchains de niveau 1 encore plus performantes.<\/p>","protected":false},"excerpt":{"rendered":"<p>Les blockchains de niveau 1 sont la base des dApps et des cryptomonnaies, elles offrent la s\u00e9curit\u00e9, des d\u00e9fis en mati\u00e8re d'\u00e9volutivit\u00e9 ainsi que des solutions telles que le sharding et le niveau 2.<\/p>","protected":false},"author":263121695,"featured_media":873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false},"categories":[778788590],"tags":[],"class_list":["post-779","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-krypto-begriffe"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-67.png","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":788,"url":"https:\/\/kryptozukunft.com\/fr\/2025\/03\/15\/blockchains-de-couche-2\/","url_meta":{"origin":779,"position":0},"title":"Cha\u00eenes de blocs de niveau 2","author":"Felix Rieger","date":"mars 15, 2025","format":false,"excerpt":"Les blockchains de niveau 2 am\u00e9liorent l'\u00e9volutivit\u00e9, la vitesse et la rentabilit\u00e9 en regroupant les transactions en dehors de la blockchain principale.","rel":"","context":"Dans &quot;Krypto Begriffe erkl\u00e4rt- Kryptowikipedia&quot;","block_context":{"text":"Krypto Begriffe erkl\u00e4rt- Kryptowikipedia","link":"https:\/\/kryptozukunft.com\/fr\/categorie\/termes-de-cryptographie\/"},"img":{"alt_text":"Layer2","src":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-66.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-66.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-66.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-66.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":802,"url":"https:\/\/kryptozukunft.com\/fr\/2025\/03\/15\/interoperabilite-de-la-blockchain\/","url_meta":{"origin":779,"position":1},"title":"Interop\u00e9rabilit\u00e9 de la cha\u00eene de blocs","author":"Felix Rieger","date":"mars 15, 2025","format":false,"excerpt":"L'interop\u00e9rabilit\u00e9 des cha\u00eenes de blocs est essentielle pour un \u00e9change de donn\u00e9es efficace et des interactions transparentes entre diff\u00e9rentes cha\u00eenes de blocs dans le monde de la cryptographie.","rel":"","context":"Dans &quot;Krypto Begriffe erkl\u00e4rt- Kryptowikipedia&quot;","block_context":{"text":"Krypto Begriffe erkl\u00e4rt- Kryptowikipedia","link":"https:\/\/kryptozukunft.com\/fr\/categorie\/termes-de-cryptographie\/"},"img":{"alt_text":"Blockchain","src":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-62.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-62.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-62.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/03\/image-62.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1483,"url":"https:\/\/kryptozukunft.com\/fr\/2025\/03\/29\/ethereum-couche-2\/","url_meta":{"origin":779,"position":2},"title":"Ethereum couche 2","author":"Felix Rieger","date":"mars 29, 2025","format":false,"excerpt":"Les solutions Ethereum de niveau 2 am\u00e9liorent l'\u00e9volutivit\u00e9 et la vitesse de transaction d'Ethereum, mais affectent la stabilit\u00e9 \u00e9conomique du r\u00e9seau.","rel":"","context":"Dans &quot;Krypto News - 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