{"id":2407,"date":"2021-10-07T18:58:01","date_gmt":"2021-10-07T16:58:01","guid":{"rendered":"https:\/\/www.api.parlonsfinance.fr\/?p=2407"},"modified":"2023-02-19T17:42:00","modified_gmt":"2023-02-19T16:42:00","slug":"crypto-gros-plan-sur-polkadot","status":"publish","type":"post","link":"https:\/\/www.api.parlonsfinance.fr\/index.php\/2021\/10\/07\/crypto-gros-plan-sur-polkadot\/","title":{"rendered":"Crypto : gros plan sur Polkadot"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\">De retour dans notre sph\u00e8re des cryptomonnaies, cette semaine, nous vous sugg\u00e9rons d\u2019\u00e9tudier un protocole concurrent d\u2019Ethereum, le <span class=\"has-inline-color has-vivid-red-color\">Polkadot<\/span>. Cette haute technologie qui dispose d\u2019algorithmes \u00ab\u2009<span class=\"has-inline-color has-vivid-cyan-blue-color\">multicha\u00eene<\/span>\u2009\u00bb propose aux diff\u00e9rentes blockchains d\u2019\u00e9changer des informations arbitraires de mani\u00e8re compl\u00e8tement s\u00e9curis\u00e9es. Le r\u00e9seau qui, offre la possibilit\u00e9, de cr\u00e9er des applications qui utilisent des donn\u00e9es d\u2019une cha\u00eene de registre priv\u00e9, sur une cha\u00eene de registre publique, a s\u00e9duit un grand nombre d\u2019investisseurs dans leurs d\u00e9cisions d\u2019achats. D\u2019apr\u00e8s la plateforme de nouvelles cryptographiques, <span class=\"has-inline-color has-vivid-cyan-blue-color\">Messari, le jeton virtuel (DOT)<\/span> occupe la premi\u00e8re position, au classement de devises alternatives les plus d\u00e9tenues, par les fonds de placement.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><strong>La gen\u00e8se de la plateforme Polkadot<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\">Polkadot (sigle\u00a0: <strong>DOT<\/strong>) est une plateforme dont la particularit\u00e9 permet <span class=\"has-inline-color has-vivid-cyan-blue-color\">aux blockchains de se lier, entrent-elles<\/span>. La structure d\u00e9marre en 2017, par l\u2019initiative de <span class=\"has-inline-color has-vivid-cyan-blue-color\"><em>Gavin Wood<\/em><\/span>, co-fondateur et anciennement directeur technique d\u2019Ethereum, chercheur chez Microsoft, et inventeur de l\u2019illustre langage de programmation <span class=\"has-inline-color has-vivid-red-color\">Solidity<\/span>. Cette architecture qui est d\u00e9centralis\u00e9e et \u00e9volutive, fonctionne sur le consensus de la preuve d\u2019enjeu \u00ab\u2009Proof-of-Stake\u2009\u00bb. Elle dispose d\u2019un \u00e9cosyst\u00e8me de cha\u00eene parall\u00e8le et h\u00e9t\u00e9rog\u00e8ne, les \u00ab\u2009<span class=\"has-inline-color has-vivid-cyan-blue-color\">parachains<\/span>\u2009\u00bb et \u00ab\u2009<span class=\"has-inline-color has-vivid-cyan-blue-color\">parathreads<\/span>\u2009\u00bb. <span class=\"has-inline-color has-vivid-cyan-blue-color\">Ces maillons se connectent \u00e0 la cha\u00eene de relai principale, et par celle-ci, sont s\u00e9curis\u00e9<\/span>s. Elles peuvent \u00e9galement se lier \u00e0 des structures externes gr\u00e2ce aux \u00ab\u2009ponts\u2009\u00bb qui permettent de se brancher \u00e0 des r\u00e9seaux comme bitcoin ou Ethereum. Le projet Polkadot s\u2019appuie sur la Web3 Fondation, et la soci\u00e9t\u00e9 Parity Technologies. Ces deux institutions implant\u00e9es \u00e0 Zoug, en Suisse, ont pour mission de rendre l\u2019utilisation des logiciels d\u00e9centralis\u00e9s beaucoup plus accessible aux programmeurs.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><strong>La face technique de Polkadot&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\">L\u2019am\u00e9nagement de la structure de Polkadot diff\u00e8re de la plupart des r\u00e9seaux cryptoactifs. <span class=\"has-inline-color has-vivid-cyan-blue-color\">L\u2019algorithme permet de r\u00e9soudre les divers probl\u00e8mes techniques qui ont jusqu\u2019\u00e0 pr\u00e9sent ralenti le d\u00e9veloppement de la technologie des pi\u00e8ces virtuelles.<\/span> Il fonctionne sur le m\u00e9canisme de la preuve d\u2019enjeu \u00ab\u2009Proof-of-Stake\u2009\u00bb, et le syst\u00e8me repose sur une boucle fondamentale de relai o\u00f9 passent toutes les op\u00e9rations, et les \u00e9changes de donn\u00e9es. \u00c0 c\u00f4t\u00e9 de cette sangle principale, il si\u00e8ge des cha\u00eenes autonomes parall\u00e8les, les \u00ab\u2009parachains\u2009\u00bb et \u00ab\u2009parathreads\u2009\u00bb. Les \u00ab\u2009parachains\u2009\u00bb apparaissent sous la forme de petits r\u00e9seaux ind\u00e9pendants qui se greffent par s\u00e9quence \u00e0 la suite du registre de transaction centrale. Ces micror\u00e9seaux sont r\u00e9gis par les \u00ab\u2009valideurs\u2009\u00bb. Les autres maillons lat\u00e9raux de la cha\u00eene sont nomm\u00e9s, les \u00ab\u2009parathreads\u2009\u00bb. Tout comme les \u00ab\u2009parachains\u2009\u00bb, ces blockchains souveraines viennent se grossir \u00e0 la structure majeure de la plateforme. Cependant, par analogie aux \u00ab\u2009parachains\u2009\u00bb, elles ont la particularit\u00e9 de pouvoir accueillir plusieurs projets \u00e0 la fois qui vont coexister sous la m\u00eame fondation. Simplement, on peut associer les \u00ab\u2009parachains\u2009\u00bb et les \u00ab\u2009parathreads\u2009\u00bb \u00e0 la souscription d\u2019un serveur web o\u00f9 les \u00ab\u2009parachains\u2009\u00bb repr\u00e9senterait des serveurs d\u00e9di\u00e9s, et les \u00ab\u2009parathreads\u2009\u00bb, des serveurs mutualis\u00e9s. Enfin, en se connectant \u00e0 Polkadot, les cr\u00e9ateurs peuvent prot\u00e9ger leur cha\u00eene de blocs d\u00e8s le premier jour.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"625\" height=\"483\" src=\"https:\/\/www.api.parlonsfinance.fr\/wp-content\/uploads\/2021\/10\/Picture-1.png\" alt=\"\" class=\"wp-image-2417\" srcset=\"https:\/\/www.api.parlonsfinance.fr\/wp-content\/uploads\/2021\/10\/Picture-1.png 625w, https:\/\/www.api.parlonsfinance.fr\/wp-content\/uploads\/2021\/10\/Picture-1-300x232.png 300w, https:\/\/www.api.parlonsfinance.fr\/wp-content\/uploads\/2021\/10\/Picture-1-585x452.png 585w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><figcaption>Sch\u00e9ma de l\u2019infrastructure de Polkadot. Source&nbsp;: cryptonews.com<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><strong>Le r\u00f4le de la cryptodevise DOT<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\">Le r\u00e9seau de Polkadot emploie un syst\u00e8me de pilotage sophistiqu\u00e9. Les jetons DOT s\u2019utilisent pour participer aux choix dans le m\u00e9canisme de gouvernance, notamment lors de d\u00e9p\u00f4t de propositions, le scrutin et le cautionnement. <span class=\"has-inline-color has-vivid-cyan-blue-color\">Pour les d\u00e9lib\u00e9rations, les d\u00e9tenteurs de fonds\u00a0d\u00e9l\u00e8guent leurs pi\u00e8ces bloqu\u00e9es (leur voix) aux \u00ab\u2009valideurs\u2009\u00bb par la proc\u00e9dure du \u00ab\u2009staking\u2009\u00bb. Ce m\u00e9canisme permet de\u00a0s\u2019assurer que les \u00e9lecteurs qui poss\u00e8dent le plus de fonds commandent toujours le r\u00e9seau.<\/span> Tous les verdicts se passent par le referendum avec des seuils de super-majorit\u00e9 adaptatifs et des votes d\u2019approbation par lots. Par la suite, les individus qui ont l\u00e9gu\u00e9 leur droit de d\u00e9cision per\u00e7oivent un int\u00e9r\u00eat au prorata des sommes immobilis\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><strong>Le r\u00e9seau Kusama<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\">Lanc\u00e9 en 2016, le r\u00e9seau <em><span class=\"has-inline-color has-vivid-red-color\">Kusama<\/span><\/em> (sigle\u00a0: <strong>KSM<\/strong>) permet de composer des fonctionnalit\u00e9s, publier, et pr\u00e9parer des programmes \u00e0 venir sur la plateforme principale Polkadot. Les concepteurs y b\u00e9n\u00e9ficient de plus de souplesse lors de l\u2019\u00e9tablissement de leurs projets. Ils peuvent abr\u00e9ger ou am\u00e9liorer des parties de codes d\u2019un logiciel, pour qu\u2019<em>in fine<\/em>\u00a0Polkadot accueille la version des applis finies. Contrairement \u00e0 d\u2019autres dispositifs d\u2019essai, en aucun cas, <span class=\"has-inline-color has-vivid-cyan-blue-color\">l\u2019algorithme de Kusama ne s\u2019apparente \u00e0 un \u00ab\u2009Testnet\u2009\u00bb. C\u2019est bien au contraire, une entit\u00e9 autonome qui jouit d\u2019une cryptomonnaie native, qui a une vraie valeur intrins\u00e8que.\u00a0<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><strong>La comparaison de Polkadot vs Ethereum<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><strong><span class=\"has-inline-color has-vivid-red-color\">Polkadot<\/span>\u00a0<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\" style=\"font-size:17px\"><li><span class=\"has-inline-color has-vivid-cyan-blue-color\">La plateforme permet aux blockchains de se lier, entrent-elles.<\/span><\/li><li>Elle fonctionne gr\u00e2ce au m\u00e9canisme de la preuve d\u2019enjeu \u00ab\u2009Proof-of-Stake\u2009\u00bb.<\/li><li>Le r\u00e9seau est \u00e9quip\u00e9 <span class=\"has-inline-color has-vivid-cyan-blue-color\">d\u2019une cha\u00eene centrale, la cha\u00eene de relai, et des boucles secondaires<\/span> nomm\u00e9es \u00ab\u2009parachains\u2009\u00bb et \u00ab\u2009parathreads\u2009\u00bb.<\/li><li>Les jetons DOT s\u2019utilisent dans le processus de gouvernance de la structure, pour les prises des d\u00e9cisions.<\/li><li>L\u2019\u00e9cosyst\u00e8me de Polkadot se sert de la blockchain Kusama comme un banc d\u2019essai pour d\u00e9velopper de nouveaux logiciels.\u00a0<\/li><li>La vitesse des op\u00e9rations sur Polkadot se situe \u00e0 <span class=\"has-inline-color has-vivid-cyan-blue-color\">166,666\u00a0transactions par seconde (TPS)<\/span>.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><strong><span class=\"has-inline-color has-vivid-red-color\">Ethereum<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\" style=\"font-size:17px\"><li>La plateforme accepte aux programmeurs de d\u00e9velopper des applications d\u00e9centralis\u00e9es, appel\u00e9es \u00ab\u2009DApps\u2009\u00bb.<\/li><li>Dans sa premi\u00e8re version, Ethereum utilise le consensus de la preuve de travail (la preuve d\u2019enjeu&nbsp;PoS, remplacera ce m\u00e9canisme&nbsp;dans sa&nbsp;future&nbsp;mise \u00e0 jour&nbsp;Ethereum2.0).&nbsp;<\/li><li>Ethereum permet 15-20&nbsp;TPS.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:17px\"><strong>Des exemples d<span class=\"has-inline-color has-vivid-cyan-blue-color\">e projets pertinents lanc\u00e9s sur Polkadot\u00a0<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\" style=\"font-size:17px\"><li><em>Ocean Protocol<\/em><\/li><li><em>Chainlink<\/em><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px\"><strong>R\u00e9sum\u00e9<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\" style=\"font-size:17px\"><li>L\u2019architecture de Polkadot a vu le jour en <span class=\"has-inline-color has-vivid-cyan-blue-color\">2017 gr\u00e2ce \u00e0 l\u2019initiative de Gavin Wood<\/span>, un ancien employ\u00e9 de Microsoft, co-fondateur d\u2019Ethereum, et cr\u00e9ateur du langage de programmation Solidity.\u00a0<\/li><li>Polkadot est une \u00ab\u2009<strong><span class=\"has-inline-color has-vivid-red-color\">crosschain<\/span><\/strong>\u2009\u00bb qui accepte de relier les diff\u00e9rentes structures, entrent-elles, gr\u00e2ce aux \u00ab\u2009ponts\u2009\u00bb. Elle autorise des transferts pour diverses informations en toute s\u00e9curit\u00e9.<\/li><li>Le r\u00e9seau est \u00e9quip\u00e9 d\u2019une <span class=\"has-inline-color has-vivid-cyan-blue-color\">boucle centrale<\/span>, la cha\u00eene de relai qui permet de valider des transactions, et <span class=\"has-inline-color has-vivid-cyan-blue-color\">des micror\u00e9seaux secondaires<\/span> nomm\u00e9s \u00ab\u2009parachains\u2009\u00bb et \u00ab\u2009parathreads\u2009\u00bb.<\/li><li>La cryptomonnaie native sur Polkadot se nomme <strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">DOT<\/span><\/strong><\/li><li>\u00c0 l\u2019heure de la r\u00e9daction de cet article, <span class=\"has-inline-color has-vivid-cyan-blue-color\">Polkadot occupe la huiti\u00e8me place des plus grandes capitalisations boursi\u00e8res sur le march\u00e9 des cryptomonnaies<\/span>, totalisant 32,79\u00a0milliards de dollars. Le prix unitaire du DOT se situe \u00e0 33,11\u00a0dollars.\u00a0<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet article a \u00e9t\u00e9 r\u00e9dig\u00e9 par\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/mbomasi-jean-goy-222147b3\/?fbclid=IwAR2BahiDRL22ANvUQzr5MD5sDkzipN04bZYzeDUXA7x8RzMKSdtdYvlKPMA\" target=\"_blank\" rel=\"noreferrer noopener\">Jean Goy Mbomasi<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>De retour dans notre sph\u00e8re des cryptomonnaies, cette semaine, nous vous sugg\u00e9rons d\u2019\u00e9tudier un protocole concurrent d\u2019Ethereum, le Polkadot. Cette haute technologie qui dispose d\u2019algorithmes \u00ab\u2009multicha\u00eene\u2009\u00bb propose aux diff\u00e9rentes blockchains d\u2019\u00e9changer des informations arbitraires de mani\u00e8re compl\u00e8tement s\u00e9curis\u00e9es. Le r\u00e9seau qui, offre la possibilit\u00e9, de cr\u00e9er des applications qui utilisent des donn\u00e9es d\u2019une cha\u00eene de [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":2408,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[612,4],"tags":[222,582,5,109,272],"class_list":["post-2407","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-parlons-crypto","category-nos-analyses","tag-crypto","tag-cryptomonnaies","tag-finance","tag-trading","tag-wall-street"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"De retour dans notre sph\u00e8re des cryptomonnaies, cette semaine, nous vous sugg\u00e9rons d\u2019\u00e9tudier un protocole concurrent d\u2019Ethereum, le Polkadot. Cette haute technologie qui dispose d\u2019algorithmes \u00ab multicha\u00eene \u00bb propose aux diff\u00e9rentes blockchains d\u2019\u00e9changer des informations arbitraires de mani\u00e8re compl\u00e8tement s\u00e9curis\u00e9es. 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