{"id":13270,"date":"2022-02-09T17:05:56","date_gmt":"2022-02-09T16:05:56","guid":{"rendered":"https:\/\/blog.feel-mining.com\/?p=13270"},"modified":"2022-02-09T17:05:58","modified_gmt":"2022-02-09T16:05:58","slug":"blockchain-le-futur-de-la-finance-traditionnelle","status":"publish","type":"post","link":"https:\/\/blog.feel-mining.com\/blockchain-le-futur-de-la-finance-traditionnelle\/","title":{"rendered":"Blockchain, Le futur de la finance traditionnelle"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">D\u00e8s les ann\u00e9es 90, des chercheurs cr\u00e9ent une solution permettant l\u2019horodatage des documents num\u00e9riques. Impossible d\u2019alt\u00e9rer ou de modifier ces donn\u00e9es. Cette innovation est coupl\u00e9e avec le protocole \u00ab<a href=\"https:\/\/fr.wikipedia.org\/wiki\/Arbre_de_Merkle#:~:text=En%20informatique%20et%20en%20cryptographie,par%20Ralph%20Merkle%20en%201979.\">\u00a0Arbre de Merkle\u00a0<\/a>\u00bb qui permet de rassembler plusieurs documents dans un seul bloc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Peu utilis\u00e9e, cette technologie refait surface en 2008 avec la cr\u00e9ation du Bitcoin. Le ou les cr\u00e9ateurs cach\u00e9s derri\u00e8re le pseudonyme de \u00ab&nbsp;Satoshi Nakamoto&nbsp;\u00bb impl\u00e9mentent la solution de la <strong>blockchain<\/strong> l\u2019ann\u00e9e suivante. La cha\u00eene de bloc est utilis\u00e9e pour r\u00e9pertorier l\u2019ensemble des transactions \u00e9mises sur le r\u00e9seau. Il s\u2019agit d\u2019un registre public disponible en ligne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le secteur bancaire est le premier \u00e0 s\u2019int\u00e9resser \u00e0 cette technologie. Le transfert d\u2019argent \u00e0 l\u2019international n\u2019a jamais \u00e9t\u00e9 aussi rapide et aussi peu co\u00fbteux. Une solution qui r\u00e9pond \u00e0 un besoin et qui am\u00e9liore les solutions existantes. La r\u00e9volution <strong>blockchain<\/strong> est en marche.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Concepts de base<\/strong><\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>La blockchain<\/strong> est une cha\u00eene de blocs informatiques qui enregistre toutes les transactions r\u00e9alis\u00e9es au sein d\u2019un r\u00e9seau. C\u2019est le livre de compte d\u2019une <strong>cryptomonnaie<\/strong>.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"228\" src=\"https:\/\/i0.wp.com\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/2-1.jpg?resize=512%2C228&#038;ssl=1\" alt=\"Sch\u00e9ma montrant le fonctionnement d'une blockchain \" class=\"wp-image-13273\" srcset=\"https:\/\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/2-1.jpg 512w, https:\/\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/2-1-480x214.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 512px, 100vw\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u2019\u00e9change pair \u00e0 pair<\/strong> permet d\u2019envoyer de la valeur \u00e0 l\u2019autre bout du monde, rapidement, sans autorit\u00e9 centrale et \u00e0 moindre co\u00fbt gr\u00e2ce \u00e0 la <strong>blockchain<\/strong>.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"149\" src=\"https:\/\/i0.wp.com\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/2-2.png?resize=512%2C149&#038;ssl=1\" alt=\"Visuel montrant comment envoyer une cryptomonnaie \u00e0 travers une blockchain\" class=\"wp-image-13272\" srcset=\"https:\/\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/2-2.png 512w, https:\/\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/2-2-480x140.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 512px, 100vw\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Le contrat intelligent<\/strong> est un contrat programm\u00e9 par un protocole informatique. Son objectif est d\u2019automatiser une action selon des conditions d\u00e9termin\u00e9es.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/3-1.png?resize=473%2C182&#038;ssl=1\" alt=\"Visuel montrant comment fonctionne un contrat intelligent sur une blockchain\" class=\"wp-image-13274\" width=\"473\" height=\"182\"\/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>La finance d\u00e9centralis\u00e9e<\/strong> est un \u00e9cosyst\u00e8me qui propose des produits ou services financiers. Elle ne dispose pas d\u2019une autorit\u00e9 centrale, mais s\u2019appuie sur la <strong>blockchain<\/strong> pour fonctionner.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>#1 Bitcoin et l\u2019\u00e9change pair \u00e0 pair<\/strong><\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">C\u2019est en 2009 que les premiers \u00e9changes de Bitcoin voient le jour. Il s\u2019agit d\u2019un r\u00e9seau de paiement <strong>pair \u00e0 pair<\/strong> sans autorit\u00e9 centrale. Il fonctionne gr\u00e2ce \u00e0 la <strong>blockchain<\/strong> et \u00e0 la cryptographie qui assure la fiabilit\u00e9 et la tra\u00e7abilit\u00e9 des donn\u00e9es. On lui donnera plus tard le nom de <strong>crypto<\/strong>-\u00ab&nbsp;<em>monnaie<\/em>&nbsp;\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette <strong>cryptomonnaie<\/strong> existe depuis une dizaine d\u2019ann\u00e9es et malgr\u00e9 cela, elle est toujours en d\u00e9veloppement. Des solutions pour am\u00e9liorer la scalabilit\u00e9 du r\u00e9seau ont vu le jour. D\u00e9cri\u00e9e pour son caract\u00e8re \u00e9nergivore elle cherche \u00e0 s\u2019am\u00e9liorer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aujourd\u2019hui, 57% du besoin en \u00e9nergie de Bitcoin est cr\u00e9\u00e9 \u00e0 partir d\u2019\u00e9nergie renouvelable. La <strong>blockchain<\/strong> se d\u00e9veloppe et s\u2019am\u00e9liore de jour en jour.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">#<strong>2 Ethereum avec les contrats intelligents et la finance d\u00e9centralis\u00e9e<\/strong><\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">En 2015 c\u2019est la cr\u00e9ation de la <strong>blockchain<\/strong> Ethereum qui h\u00e9berge des <strong>applications d\u00e9centralis\u00e9es<\/strong>. Elles fonctionnent gr\u00e2ce aux <strong>contrats intelligents<\/strong>. Ces applications proposent des services et produits financiers sans autorit\u00e9 centrale. Un nouvel \u00e9cosyst\u00e8me est n\u00e9, la <strong>finance d\u00e9centralis\u00e9e<\/strong>.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/5-3.png?resize=554%2C200&#038;ssl=1\" alt=\"Visuel montrant comment marche la blockchain Ethereum\" class=\"wp-image-13276\" width=\"554\" height=\"200\" srcset=\"https:\/\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/5-3.png 554w, https:\/\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/5-3-480x173.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 554px, 100vw\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Cependant, quelques probl\u00e9matiques subsistent&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>La rapidit\u00e9 et la scalabilit\u00e9<br>Le r\u00e9seau est en mesure d\u2019accepter environ 15 transactions par seconde ce qui n\u2019est pas suffisant pour g\u00e9rer la demande totale. De ce fait, le r\u00e9seau est congestionn\u00e9, surcharg\u00e9.<br><\/li><li>Le co\u00fbt des transferts<br>Du fait de la congestion du r\u00e9seau, le co\u00fbt d\u2019utilisation est \u00e9lev\u00e9. C\u2019est la loi de l\u2019offre et de la demande, peu de disponibilit\u00e9s, une demande importante, de ce fait le prix augmente. Les frais de transaction explosent, ce qui rend Ethereum presque inutilisable pour les petits portefeuilles.<br><\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Le trilemme des blockchains, s\u00e9curit\u00e9, \u00e9volutivit\u00e9 et d\u00e9centralisation<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pour r\u00e9pondre aux probl\u00e9matiques de co\u00fbt et de congestion, d\u2019autres acteurs de l\u2019\u00e9cosyst\u00e8me <strong>blockchain<\/strong> apportent des solutions. Des <strong>blockchains<\/strong> de nouvelle g\u00e9n\u00e9ration voient le jour comme Solana, Avalanche ou Terra. Ce sont des infrastructures au m\u00eame titre qu\u2019Ethereum, capable d\u2019h\u00e9berger des <strong>applications d\u00e9centralis\u00e9es, <\/strong>mais qui sont plus puissantes et plus rapides.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/6-3.png?resize=584%2C162&#038;ssl=1\" alt=\"Visuel montrant les blockchains de nouvelle g\u00e9n\u00e9ration\" class=\"wp-image-13277\" width=\"584\" height=\"162\" srcset=\"https:\/\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/6-3.png 584w, https:\/\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/6-3-480x133.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 584px, 100vw\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Une <strong>blockchain <\/strong>doit satisfaire&nbsp; trois exigences majeures :&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>La s\u00e9curit\u00e9<\/li><li>La rapidit\u00e9&nbsp;<\/li><li>La d\u00e9centralisation<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;C\u2019est ce qu\u2019on appelle le trilemme des <strong>blockchains<\/strong>.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>La s\u00e9curit\u00e9 permet \u00e0 la blockchain de fonctionner correctement sans subir de hacks.<\/li><li>La <strong>d\u00e9centralisation <\/strong>est d\u00e9termin\u00e9e en fonction de la r\u00e9partition g\u00e9ographique des n\u0153uds validateurs sur le globe (en cas de coupure d\u2019\u00e9lectricit\u00e9 dans une partie du monde alors une autre zone prend le relais).&nbsp;<\/li><li>La scalabilit\u00e9 du r\u00e9seau permet \u00e0 celui-ci de s\u2019adapter \u00e0 la forte croissance des transactions \u00e0 une p\u00e9riode donn\u00e9e.<\/li><\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/blog.feel-mining.com\/wp-content\/uploads\/2022\/02\/7-3.png?resize=429%2C284&#038;ssl=1\" alt=\"Visuel repr\u00e9sentant le trilemme des blockchains\" class=\"wp-image-13278\" width=\"429\" height=\"284\"\/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>La blockchain<\/strong> permet l\u2019\u00e9change de <strong>pair \u00e0 pair<\/strong> sans autorit\u00e9 centrale. De nouveaux \u00e9cosyst\u00e8mes voient le jour pour accueillir des <strong>applications d\u00e9centralis\u00e9es<\/strong> qui fonctionnent gr\u00e2ce aux <strong>contrats intelligents<\/strong>. Elles proposent des produits et services financiers mais pas seulement. Apr\u00e8s le secteur bancaire avec les paiements, d\u2019autres secteurs sont attir\u00e9s par <strong>la technologie blockchain<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La <strong>finance<\/strong>, les collections num\u00e9riques ou encore les jeux vid\u00e9o commencent \u00e0 utiliser la <strong>blockchain<\/strong>. Cette technologie devrait \u00eatre l\u2019\u00e9l\u00e9ment essentiel de la <strong>finance<\/strong> de demain.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u00e8s les ann\u00e9es 90, des chercheurs cr\u00e9ent une solution permettant l\u2019horodatage des documents num\u00e9riques. Impossible d\u2019alt\u00e9rer ou de modifier ces donn\u00e9es. Cette innovation est coupl\u00e9e avec le protocole \u00ab\u00a0Arbre de Merkle\u00a0\u00bb qui permet de rassembler plusieurs documents dans un seul bloc. Peu utilis\u00e9e, cette technologie refait surface en 2008 avec la cr\u00e9ation du Bitcoin. Le [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":13334,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"","_wpcom_ai_launchpad_first_post":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[9,83],"tags":[],"class_list":["post-13270","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-marche-analyses-cryptomonnaies","category-revues-projets-crypto"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Blockchain, Le futur de la finance traditionnelle - Feel Mining Blog<\/title>\n<meta name=\"description\" content=\"Cela fait maintenant quelques ann\u00e9es que la blockchain et les cryptomonnaies se d\u00e9mocratisent davantage. 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