{"id":2595,"date":"2022-08-31T12:35:49","date_gmt":"2022-08-31T10:35:49","guid":{"rendered":"https:\/\/www.closeoption.com\/blog\/une-breve-histoire-du-bitcoin\/"},"modified":"2024-12-15T11:23:57","modified_gmt":"2024-12-15T10:23:57","slug":"une-breve-histoire-du-bitcoin","status":"publish","type":"post","link":"https:\/\/www.closeoption.com\/blog\/une-breve-histoire-du-bitcoin\/","title":{"rendered":"Une br\u00e8ve histoire du bitcoin"},"content":{"rendered":"<p><br \/>&#8211; wp:paragraph &#8211;&gt;<\/p>\r\n<p>Le concept de monnaie num\u00e9rique n&#8217;est pas nouveau. De nombreuses tentatives de cr\u00e9ation d&#8217;une crypto-monnaie ont \u00e9t\u00e9 faites par le pass\u00e9. Le plus gros probl\u00e8me de la plupart d&#8217;entre elles \u00e9tait la question de la double d\u00e9pense. Pour \u00e9viter de copier et effectivement de contrefaire un actif num\u00e9rique, celui-ci ne doit \u00eatre disponible qu&#8217;une seule fois. Nous allons commencer notre discussion par une courte description de trois mots-cl\u00e9s.\u00a0<\/p>\r\n<!-- \/wp:post-content -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Une blockchain est un\u00a0grand livre public qui documente les transactions Internet dans un format num\u00e9rique. C&#8217;est le fondement des crypto-monnaies telles que le bitcoin.\u00a0<\/p>\r\n<p>. <!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>Une crypto-monnaie est un moyen d&#8217;\u00e9change num\u00e9rique qui utilise des techniques cryptographiques pour contr\u00f4ler la formation des unit\u00e9s mon\u00e9taires et valider les mouvements de fonds.<\/p>\r\n<p>. <!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>Enfin, le bitcoin est la crypto-monnaie la plus connue qui est produite \u00e0 la suite de l&#8217;op\u00e9ration de &#8220;minage&#8221;. En outre, il s&#8217;agit d&#8217;une ressource num\u00e9rique cr\u00e9\u00e9e et g\u00e9r\u00e9e \u00e0 l&#8217;aide de la cryptographie au lieu d&#8217;impliquer des autorit\u00e9s centrales ou fondamentales. Mais o\u00f9 tout cela a-t-il commenc\u00e9 ?\u00a0<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2><strong>Naissance du bitcoin<\/strong><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Le bitcoin a \u00e9t\u00e9 cr\u00e9\u00e9 en 2008 par un individu ou un groupe d&#8217;individus anonymes identifi\u00e9s comme Satoshi Nakamoto. Il est d&#8217;abord pr\u00e9sent\u00e9 sous forme de livre blanc, puis, en 2009, il est d\u00e9velopp\u00e9 sous forme de logiciel libre. Cette ann\u00e9e-l\u00e0, pour la premi\u00e8re fois, le programme Bitcoin devient accessible au public, et le minage &#8211; la m\u00e9thode de cr\u00e9ation de nouveaux bitcoins et d&#8217;enregistrement et de v\u00e9rification des transactions sur la Blockchain &#8211; a lieu.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2><strong>La premi\u00e8re transaction<\/strong><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Le 12 janvier 2009, la premi\u00e8re transaction en bitcoins a \u00e9t\u00e9 effectu\u00e9e pour valider le r\u00e9seau. Dix bitcoins ont \u00e9t\u00e9 transf\u00e9r\u00e9s entre Nakamoto et feu Hal Finney, qui a \u00e9t\u00e9 utile dans le d\u00e9veloppement pr\u00e9coce de Blockchain, e, cr\u00e9ant le syst\u00e8me de preuve de travail r\u00e9utilisable (RPoW) en 2004. Le New Liberty Standard a \u00e9tabli le premier \u00e9change de BTC contre les dollars le 5 octobre 2009, et, par cons\u00e9quent, le bitcoin a attir\u00e9 l&#8217;attention.\u00a0<\/p>\r\n<p>.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2><strong>Un achat de pizza<\/strong><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>La premi\u00e8re transaction test de Bitcoin a \u00e9t\u00e9 rapidement suivie d&#8217;une transaction foodie dans le monde r\u00e9el. Le 22 mai 2010, le programmeur Laszlo Hanyecz a commenc\u00e9 \u00e0 utiliser le site Bitcointalk.org pour acheter deux pizzas pour 10 000 bitcoins. Jeremy Sturdivant, un \u00e9tudiant, a bien accueilli l&#8217;offre et a envoy\u00e9 \u00e0 Hanyecz sa commande de nourriture Papa John&#8217;s. C&#8217;est fantastique ! Ce paiement a \u00e9t\u00e9 un moment d\u00e9cisif pour le bitcoin, d\u00e9montrant que les BTC pouvaient \u00eatre utilis\u00e9s pour acheter des biens du monde r\u00e9el.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Les march\u00e9s noirs, tels que Silk Road, sont devenus les premiers grands utilisateurs de BTC apr\u00e8s les premiers \u00e9changes de &#8220;proof-of-concept&#8221;. Silk Road n&#8217;a accept\u00e9 que les bitcoins comme moyen de paiement pendant les 30 premiers mois de son existence, \u00e0 partir de f\u00e9vrier 2011, et a effectu\u00e9 des transactions portant sur 9,9 millions de bitcoins d&#8217;une valeur de 214 millions de dollars.\u00a0<\/p>\r\n<p>. <!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading --><\/p>\r\n<h2><strong>Bloc Genesis<\/strong><\/h2>\r\n<p><!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>Le premier bloc min\u00e9 dans une blockchain, comme celle du bitcoin, est appel\u00e9 bloc Genesis. Il contient 50 BTC qui ne peuvent pas \u00eatre d\u00e9pens\u00e9s, et il a engendr\u00e9 le d\u00e9veloppement de blocs suppl\u00e9mentaires. La cr\u00e9ation de nouveaux blocs prend environ 10 minutes en moyenne. Le bloc suivant, en revanche, a mis six jours \u00e0 \u00eatre ajout\u00e9 \u00e0 la blockchain. Il existe certaines hypoth\u00e8ses quant \u00e0 la raison pour laquelle cela a \u00e9t\u00e9 le cas. L&#8217;une des affirmations les plus intrigantes est que Satoshi a attendu six jours pour imiter la Gen\u00e8se de la Bible.\u00a0<\/p>\r\n<p>. <!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading --><\/p>\r\n<h2><strong>2011 &#8211; Les crypto-monnaies rivales ont fait leur apparition<\/strong><\/h2>\r\n<p>. <!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>Les premi\u00e8res crypto-monnaies concurrentes sont apparues alors que le Bitcoin gagne en popularit\u00e9 et, ainsi, le concept de monnaie d\u00e9centralis\u00e9e et cryptographique a \u00e9t\u00e9 pris en compte. Elles sont souvent connues sous le nom d&#8217;altcoins, et elles visaient \u00e0 d\u00e9velopper l&#8217;architecture initiale du Bitcoin en fournissant un processus de transaction plus rapide, l&#8217;anonymat, ou tout autre avantage. Namecoin et Litecoin ont \u00e9t\u00e9 les premiers \u00e0 appara\u00eetre. \u00c0 ce jour, il existe plus de 1 000 crypto-monnaies en circulation, et de nouvelles apparaissent r\u00e9guli\u00e8rement.\u00a0<\/p>\r\n<p><!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading --><\/p>\r\n<h2><strong>Le cours du bitcoin s&#8217;est effondr\u00e9 en 2013<\/strong><\/h2>\r\n<p>. <!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>Peu de temps apr\u00e8s avoir atteint 1 000 dollars pour la premi\u00e8re fois, le prix du bitcoin a continu\u00e9 \u00e0 baisser rapidement. De nombreux investisseurs avaient perdu de l&#8217;argent \u00e0 ce moment-l\u00e0, lorsque le titre est tomb\u00e9 \u00e0 environ 300 $ &#8211; il a fallu environ deux ans pour qu&#8217;il atteigne \u00e0 nouveau 1 000 $.<\/p>\r\n<p>. <!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading --><\/p>\r\n<h2><strong>Escroqueries et vols en 2014<\/strong><\/h2>\r\n<p>. <!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>Le bitcoin s&#8217;est r\u00e9v\u00e9l\u00e9 \u00eatre une destination attrayante et rentable pour les pirates informatiques, peut-\u00eatre de mani\u00e8re pr\u00e9visible pour une monnaie construite pour le secret et la perte de contr\u00f4le en t\u00eate. Mt.Gox, la plus grande bourse de bitcoins du monde, a fait faillite en janvier 2014, et les d\u00e9tenteurs de 850 000 bitcoins n&#8217;y ont plus jamais eu acc\u00e8s. Des enqu\u00eates sont actuellement en cours pour d\u00e9terminer ce qui s&#8217;est pass\u00e9, mais quoi qu&#8217;il en soit, quelqu&#8217;un a obtenu frauduleusement un butin estim\u00e9 \u00e0 450 millions de dollars \u00e0 l&#8217;\u00e9poque. Ces pi\u00e8ces disparues valent 4,4 milliards de dollars \u00e0 la valeur d&#8217;aujourd&#8217;hui.<\/p>\r\n<p><!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading --><\/p>\r\n<h2><strong>2017- une forte hausse<\/strong><\/h2>\r\n<p><!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>Pendant une p\u00e9riode o\u00f9 la valeur du bitcoin est rest\u00e9e en dessous des sommets pr\u00e9c\u00e9dents, une augmentation constante du nombre de sites o\u00f9 l&#8217;on pouvait investir le BTC a conduit \u00e0 son succ\u00e8s continu. Au fur et \u00e0 mesure que les applications \u00e9taient disponibles, il est devenu \u00e9vident que davantage de capitaux entraient dans l&#8217;\u00e9cosyst\u00e8me du bitcoin et des crypto-monnaies. Pendant ce temps, la capitalisation boursi\u00e8re totale de toutes les crypto-monnaies est pass\u00e9e de 11 milliards de dollars \u00e0 plus de 300 milliards de dollars. Par cons\u00e9quent, des banques telles que Barclays, Citi, Deutsche Bank et BNP Paribas ont d\u00e9clar\u00e9 qu&#8217;elles cherchaient des moyens de traiter avec le bitcoin. Pendant ce temps, la technologie blockchain qui sous-tend le bitcoin a d\u00e9clench\u00e9 un mouvement dans l&#8217;industrie fintech (et au-del\u00e0) qui ne fait que commencer.<\/p>\r\n<p>. <!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading --><\/p>\r\n<h2><strong>Avenir du bitcoin<\/strong><\/h2>\r\n<p><!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>Dans la plupart des transactions, la troisi\u00e8me partie est normalement une banque, et Bitcoin \u00e9limine essentiellement la troisi\u00e8me partie. Est-il possible que les banques deviennent redondantes \u00e0 la suite de cela ? Puisque les banques sont si critiques dans le monde d&#8217;aujourd&#8217;hui, c&#8217;est un non. Elles vont probablement r\u00e9agir \u00e0 la r\u00e9volution du bitcoin et m\u00eame participer \u00e0 sa r\u00e9gulation. La volatilit\u00e9 de la crypto-monnaie s&#8217;est av\u00e9r\u00e9e \u00eatre un d\u00e9fi qui doit \u00eatre relev\u00e9.<\/p>\r\n<p><!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>En outre, l&#8217;existence de la monnaie d\u00e9pend d&#8217;Internet, qui s&#8217;est av\u00e9r\u00e9 \u00eatre vuln\u00e9rable aux pirates informatiques. Par cons\u00e9quent, il y a une chance qu&#8217;un hacker puisse piller votre tr\u00e9sor simul\u00e9 et s&#8217;en emparer. Ce qui compte, c&#8217;est que les traders sont confiants dans la croissance du bitcoin, ce qui implique que la r\u00e9solution de nombreux probl\u00e8mes li\u00e9s \u00e0 la crypto-monnaie n&#8217;est qu&#8217;une question de temps.<\/p>\r\n<!-- \/wp:paragraph -->","protected":false},"excerpt":{"rendered":"<p>&#8211; wp:paragraph &#8211;&gt; Le concept de monnaie num\u00e9rique n&#8217;est pas nouveau. De nombreuses tentatives de [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":1899,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1314],"tags":[],"class_list":["post-2595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blockchain"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.1 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Une br\u00e8ve histoire du bitcoin<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez l&#039;histoire du Bitcoin : les d\u00e9fis de la monnaie num\u00e9rique, la double d\u00e9pense et l&#039;\u00e9volution vers une crypto-monnaie s\u00e9curis\u00e9e.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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