{"id":2315,"date":"2021-02-26T00:04:41","date_gmt":"2021-02-25T22:04:41","guid":{"rendered":"https:\/\/walloftraders.com\/blog\/?p=2306"},"modified":"2023-02-07T10:57:19","modified_gmt":"2023-02-07T09:57:19","slug":"quest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains","status":"publish","type":"post","link":"https:\/\/walloftraders.com\/blog\/quest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains\/","title":{"rendered":"Qu&rsquo;est-ce que Polkadot (DOT) ? Un web pour toutes les blockchains"},"content":{"rendered":"\n<p class=\"has-very-dark-black-color has-text-color\">Cr\u00e9\u00e9 par <strong>Gavin Wood<\/strong>, cofondateur d&rsquo;Ethereum, <strong>Polkadot<\/strong> est une <strong><a href=\"https:\/\/walloftraders.com\/blog\/notre-top-5-crypto-de-2023\/\">crypto-monnaie<\/a><\/strong> qui a lev\u00e9 144,3 millions de dollars en octobre 2017. Cet argent a \u00e9t\u00e9 financ\u00e9 gr\u00e2ce \u00e0 une <strong>Initial Coin Offering<\/strong> (<strong>ICO<\/strong>) qui \u00e9quivaut \u00e0 un <strong>financement participatif<\/strong> pour les <strong>crypto monnaies<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/walloftraders.com\/blog\/quest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains\/#Polkadot_pour_unifier_toutes_les_blockchains\" >Polkadot : pour unifier toutes les blockchains<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/walloftraders.com\/blog\/quest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains\/#DOT_le_Token\" >DOT : le Token<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"polkadot-pour-unifier-toutes-les-blockchains\"><span class=\"ez-toc-section\" id=\"Polkadot_pour_unifier_toutes_les_blockchains\"><\/span>Polkadot : pour unifier toutes les blockchains<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\"><strong>Polkadot <\/strong>est un <strong>logiciel multi-cha\u00eenes<\/strong> ou un <strong>r\u00e9seau cross-chain<\/strong> dont le but est de <strong>connecter plusieurs blockchains sp\u00e9cialis\u00e9es<\/strong> en un seul <strong><a href=\"https:\/\/polkadot.network\/\" target=\"_blank\" rel=\"noreferrer noopener\">r\u00e9seau unifi\u00e9<\/a><\/strong>.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">Avant <strong>Polkadot<\/strong>, toutes les autres blockchains fonctionnaient <strong>ind\u00e9pendamment <\/strong>et <strong>isol\u00e9ment<\/strong>. Il n&rsquo;y avait pas de communication entre les blockchains, ni de partage de donn\u00e9es ni de transactions entre elles. Le partage de valeur \u00e9tait impossible.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/walloftraders.com\/blog\/wp-content\/uploads\/2021\/02\/image-4.png\" alt=\"Logo Polkadot: lettre P\" class=\"wp-image-2309\" width=\"185\" height=\"186\" srcset=\"https:\/\/walloftraders.com\/blog\/wp-content\/uploads\/2021\/02\/image-4.png 564w, https:\/\/walloftraders.com\/blog\/wp-content\/uploads\/2021\/02\/image-4-298x300.png 298w, https:\/\/walloftraders.com\/blog\/wp-content\/uploads\/2021\/02\/image-4-150x150.png 150w, https:\/\/walloftraders.com\/blog\/wp-content\/uploads\/2021\/02\/image-4-86x86.png 86w, https:\/\/walloftraders.com\/blog\/wp-content\/uploads\/2021\/02\/image-4-60x60.png 60w, https:\/\/walloftraders.com\/blog\/wp-content\/uploads\/2021\/02\/image-4-70x70.png 70w, https:\/\/walloftraders.com\/blog\/wp-content\/uploads\/2021\/02\/image-4-370x370.png 370w\" sizes=\"(max-width: 185px) 100vw, 185px\" \/><\/figure><\/div>\n\n\n<p class=\"has-very-dark-black-color has-text-color\">Maintenant, pour la premi\u00e8re fois, Polkadot offre une<strong> interop\u00e9rabilit\u00e9 inter-cha\u00eenes<\/strong>. Polkadot permettra \u00e0 toute blockchain, publique ou priv\u00e9e, que ce soit avec permission ou pas, oracles et applications d\u00e9centralis\u00e9es de communiquer entre elles et de se connecter de fa\u00e7on d\u00e9centralis\u00e9e. Un exemple pourrait \u00eatre <strong>un Smart Contract<\/strong> d\u00e9clenchant <strong>un paiement Bitcoin<\/strong>.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\"><strong>Polkadot <\/strong>peut \u00eatre appel\u00e9 <strong>Internet des blockchains<\/strong>. Il est appel\u00e9 ainsi en raison de sa capacit\u00e9 \u00e0 fournir un r\u00e9seau interop\u00e9rable reliant toutes les blockchains. Polkadot y parvient en ayant trois couches sur son syst\u00e8me. La cha\u00eene de relais, qui est la couche centrale du syst\u00e8me, prend le r\u00f4le de n\u00e9gliger toutes les transactions du r\u00e9seau. Il assure la standardisation des donn\u00e9es pour que chaque syst\u00e8me s&rsquo;int\u00e8gre.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">Les <strong>parachaines <\/strong>sont des blockchains individuelles connect\u00e9es en parall\u00e8le. Elles permettent \u00e0 plusieurs cha\u00eenes de s&rsquo;ex\u00e9cuter simultan\u00e9ment pour permettre l&rsquo;\u00e9volutivit\u00e9 et augmenter la vitesse de transaction. Les <strong>parachaines <\/strong>peuvent \u00eatre vendues, les soci\u00e9t\u00e9s de crypto monnaie acheteuses les modifient ensuite pour r\u00e9pondre \u00e0 leurs besoins.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">Polkadots utilise des <strong>ponts <\/strong>pour se connecter \u00e0 des blockchains \u00e9tablies comme Bitcoin. Les ponts \u00e9crivent des Smart Contracts de rupture qui permettent la communication des blockchains avec le r\u00e9seau Polkadot.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"dot-le-token\"><span class=\"ez-toc-section\" id=\"DOT_le_Token\"><\/span>DOT : le Token<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">DOT est le <strong>Token <\/strong>et joue trois r\u00f4les sur le r\u00e9seau.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">Il est utilis\u00e9 pour la <strong>gouvernance <\/strong>dans le r\u00e9seau Polkadot. Les d\u00e9tenteurs du DOT votent sur la gouvernance du r\u00e9seau pour les mises \u00e0 niveau et les frais de r\u00e9seau. Les votes sont pond\u00e9r\u00e9s par le montant symbolique que l&rsquo;on poss\u00e8de.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">L&rsquo;autre utilisation du DOT est le <strong>jalonnement<\/strong>. Les d\u00e9tenteurs peuvent miser leurs tokens en tant que validateurs et nominateurs. Les validateurs participent \u00e0 la fabrication ou \u00e0 la production de nouveaux blocs. La pr\u00e9sence des proposants sert \u00e0 soutenir les validateurs. Les deux parties fournissent des fonctions de s\u00e9curit\u00e9 essentielles et re\u00e7oivent des DOTS en r\u00e9compense.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">Le token DOT sert \u00e9galement \u00e0 la <strong>liaison<\/strong>. Comme mentionn\u00e9 pr\u00e9c\u00e9demment, les parachaines peuvent \u00eatre achet\u00e9es. Les DOTS doivent \u00eatre li\u00e9s pour lier les tokens DOT \u00e0 la cha\u00eene de relai afin de cr\u00e9er une parachaine. Les parachaines p\u00e9rim\u00e9es ou inutiles sont \u00e9limin\u00e9es en supprimant le token li\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">Vous venez d&rsquo;apprendre ce qu&rsquo;est Polkadot et son token DOT, j&rsquo;esp\u00e8re que cela vous a plu.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\">Partagez cet article, ou si vous avez une remarque ou une question, \u00e9crivez simplement un commentaire, nous r\u00e9pondrons \u00e0 tout le monde.<\/p>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\" id=\"block-e914f95e-f7e3-4136-9744-b4b3d52226d1\">Pour en savoir plus sur les principales <strong>crypto monnaies<\/strong> : <a href=\"https:\/\/walloftraders.com\/blog\/quest-ce-que-le-bitcoin\/\">Bitcoin<\/a>, <a href=\"https:\/\/walloftraders.com\/blog\/quest-ce-que-ethereum-smart-contracts-applications-decentralisees\/\">Ethereum<\/a>, <a href=\"https:\/\/walloftraders.com\/blog\/quest-ce-que-binance-coin-bnb\/\">Binance Coin<\/a>, <a href=\"https:\/\/walloftraders.com\/blog\/quest-ce-que-cardano-ada-la-blockchain-open-source\/\">Cardano<\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" id=\"block-3a70b497-6891-4420-bfcc-ff208a26174f\"\/>\n\n\n\n<p class=\"has-very-dark-black-color has-text-color\" id=\"block-6ceaf8e1-b08d-4468-9d72-fd30f07e4b5f\"><em>Cet article n&rsquo;est pas un conseil en investissement. Faites vos propres recherches avant d&rsquo;investir sur le march\u00e9 de la crypto monnaie.<\/em><\/p>\n\n\n\n<div class=\"swp_social_panel swp_horizontal_panel swp_flat_fresh  swp_default_full_color swp_individual_full_color swp_other_full_color scale-100  scale-\" data-min-width=\"1100\" data-float-color=\"#ffffff\" data-float=\"none\" data-float-mobile=\"none\" data-transition=\"slide\" data-post-id=\"2315\" ><div class=\"nc_tweetContainer swp_share_button swp_twitter\" data-network=\"twitter\"><a class=\"nc_tweet swp_share_link\" rel=\"nofollow noreferrer noopener\" target=\"_blank\" href=\"https:\/\/twitter.com\/intent\/tweet?text=Qu%27est-ce+que+Polkadot+%28DOT%29+%3F+Un+web+pour+toutes+les+blockchains&url=https%3A%2F%2Fwalloftraders.com%2Fblog%2Fquest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains%2F&via=WallOfTraders\" data-link=\"https:\/\/twitter.com\/intent\/tweet?text=Qu%27est-ce+que+Polkadot+%28DOT%29+%3F+Un+web+pour+toutes+les+blockchains&url=https%3A%2F%2Fwalloftraders.com%2Fblog%2Fquest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains%2F&via=WallOfTraders\"><span class=\"swp_count swp_hide\"><span class=\"iconFiller\"><span class=\"spaceManWilly\"><i class=\"sw swp_twitter_icon\"><\/i><span class=\"swp_share\">Tweetez<\/span><\/span><\/span><\/span><\/a><\/div><div class=\"nc_tweetContainer swp_share_button swp_facebook\" data-network=\"facebook\"><a class=\"nc_tweet swp_share_link\" rel=\"nofollow noreferrer noopener\" target=\"_blank\" href=\"https:\/\/www.facebook.com\/share.php?u=https%3A%2F%2Fwalloftraders.com%2Fblog%2Fquest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains%2F\" data-link=\"https:\/\/www.facebook.com\/share.php?u=https%3A%2F%2Fwalloftraders.com%2Fblog%2Fquest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains%2F\"><span class=\"swp_count swp_hide\"><span class=\"iconFiller\"><span class=\"spaceManWilly\"><i class=\"sw swp_facebook_icon\"><\/i><span class=\"swp_share\">Partagez<\/span><\/span><\/span><\/span><\/a><\/div><div class=\"nc_tweetContainer swp_share_button swp_linkedin\" data-network=\"linkedin\"><a class=\"nc_tweet swp_share_link\" rel=\"nofollow noreferrer noopener\" target=\"_blank\" href=\"https:\/\/www.linkedin.com\/cws\/share?url=https%3A%2F%2Fwalloftraders.com%2Fblog%2Fquest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains%2F\" data-link=\"https:\/\/www.linkedin.com\/cws\/share?url=https%3A%2F%2Fwalloftraders.com%2Fblog%2Fquest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains%2F\"><span class=\"swp_count swp_hide\"><span class=\"iconFiller\"><span class=\"spaceManWilly\"><i class=\"sw swp_linkedin_icon\"><\/i><span class=\"swp_share\">Partagez<\/span><\/span><\/span><\/span><\/a><\/div><div class=\"nc_tweetContainer swp_share_button swp_pinterest\" data-network=\"pinterest\"><a rel=\"nofollow noreferrer noopener\" class=\"nc_tweet swp_share_link noPop\" href=\"https:\/\/pinterest.com\/pin\/create\/button\/?url=https%3A%2F%2Fwalloftraders.com%2Fblog%2Fquest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains%2F\" onClick=\"event.preventDefault(); \r\n\t\t\t\t\t\t\tvar e=document.createElement('script');\r\n\t\t\t\t\t\t\te.setAttribute('type','text\/javascript');\r\n\t\t\t\t\t\t\te.setAttribute('charset','UTF-8');\r\n\t\t\t\t\t\t\te.setAttribute('src','\/\/assets.pinterest.com\/js\/pinmarklet.js?r='+Math.random()*99999999);\r\n\t\t\t\t\t\t\tdocument.body.appendChild(e);\r\n\t\t\t\t\t\t\" ><span class=\"swp_count swp_hide\"><span class=\"iconFiller\"><span class=\"spaceManWilly\"><i class=\"sw swp_pinterest_icon\"><\/i><span class=\"swp_share\">Enregistrer<\/span><\/span><\/span><\/span><\/a><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cr\u00e9\u00e9 par Gavin Wood, cofondateur d&rsquo;Ethereum, Polkadot est une crypto-monnaie qui a lev\u00e9 144,3 millions de dollars en octobre 2017. Cet argent a \u00e9t\u00e9 financ\u00e9 gr\u00e2ce \u00e0 une Initial Coin Offering (ICO) qui \u00e9quivaut \u00e0 un financement participatif pour les crypto monnaies. Polkadot : pour unifier toutes les blockchains Polkadot est un logiciel multi-cha\u00eenes &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Qu&rsquo;est-ce que Polkadot (DOT) ? Un web pour toutes les blockchains\" class=\"read-more button\" href=\"https:\/\/walloftraders.com\/blog\/quest-ce-que-polkadot-dot-un-web-pour-toutes-les-blockchains\/#more-2315\" aria-label=\"Plus sur Qu&rsquo;est-ce que Polkadot (DOT) ? Un web pour toutes les blockchains\">Lire plus<\/a><\/p>\n","protected":false},"author":2,"featured_media":4368,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[188],"tags":[],"class_list":["post-2315","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-crypto-monnaies","masonry-post","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce que Polkadot (DOT) ? Un web pour toutes les blockchains<\/title>\n<meta name=\"description\" content=\"Polkadot (DOT) permet de connecter plusieurs blockchains en un seul r\u00e9seau. 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