{"id":15088,"date":"2025-04-17T10:55:37","date_gmt":"2025-04-17T10:55:37","guid":{"rendered":"https:\/\/volity.io\/?p=15088"},"modified":"2026-06-10T15:09:42","modified_gmt":"2026-06-10T15:09:42","slug":"weth-ether-enveloppe","status":"publish","type":"post","link":"https:\/\/volity.io\/fr\/crypto\/weth-ether-enveloppe\/","title":{"rendered":"Qu\u2019est\u2011ce que WETH Crypto ?"},"content":{"rendered":"\n<div class=\"wp-block-group volity-quick-answer\" style=\"border-color:#0066cc;border-width:4px;border-radius:8px;padding:20px;background:#f7f9fc;border-left:4px solid #0066cc\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading volity-qa-heading\">R\u00e9ponse rapide<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le WETH (Wrapped Ether) est un jeton qui repr\u00e9sente l&rsquo;Ether (ETH) au ratio de un pour un mais suit le standard ERC-20, ce qui lui permet d&rsquo;\u00eatre utilis\u00e9 dans les applications DeFi et trad\u00e9 comme les autres jetons. Vous emballez l&rsquo;ETH en WETH pour l&rsquo;utiliser sur les exchanges d\u00e9centralis\u00e9s et le d\u00e9ballez \u00e0 tout moment. Le WETH vaut toujours la valeur de l&rsquo;ETH ; il rend simplement l&rsquo;ETH compatible avec les contrats intelligents.<\/p>\n\n<\/div><\/div>\n\n\n\n    <style>\n    .vd-wrap {\n        display: flex;\n        align-items: flex-start;\n        gap: 20px;\n        background: #ffffff;\n        border: 1px solid #f2f4f7;\n        border-left: 4px solid #c0392b;\n        border-radius: 12px;\n        padding: 24px;\n        margin: 30px 0;\n        box-sizing: border-box;\n        width: 100%;\n        box-shadow: 0 4px 20px rgba(0,0,0,0.04);\n        position: relative;\n        overflow: hidden;\n    }\n    .vd-wrap::after {\n        content: \"\";\n        position: absolute;\n        right: -20px;\n        bottom: -20px;\n        width: 100px;\n        height: 100px;\n        background: radial-gradient(circle, rgba(192, 57, 43, 0.03) 0%, transparent 70%);\n        pointer-events: none;\n    }\n    .vd-icon {\n        flex-shrink: 0;\n        background: #fff5f4;\n        border: 1px solid #fee2e1;\n        border-radius: 8px;\n        width: 40px;\n        height: 40px;\n        display: flex;\n        align-items: center;\n        justify-content: center;\n    }\n    .vd-icon svg { width: 22px; height: 22px; }\n    .vd-content { flex: 1; min-width: 0; }\n    .vd-label {\n        display: block;\n        font-size: 11px;\n        font-weight: 800;\n        letter-spacing: 0.1em;\n        text-transform: uppercase;\n        color: #c0392b;\n        margin-bottom: 8px;\n        font-family: \"Inter\", sans-serif;\n    }\n    .vd-text {\n        font-size: 14px;\n        line-height: 1.6;\n        color: #475467;\n        margin: 0;\n        font-family: \"Inter\", sans-serif;\n    }\n    .vd-text p { margin: 0 0 10px 0; }\n    .vd-text p:last-child { margin-bottom: 0; }\n    .vd-text strong { color: #101828; font-weight: 600; }\n    .vd-text a { color: #c0392b; text-decoration: underline; }\n    @media (max-width: 600px) {\n        .vd-wrap { flex-direction: column; gap: 12px; padding: 20px; }\n        .vd-icon { width: 32px; height: 32px; }\n    }\n    <\/style>\n\n    <div class=\"vd-wrap\" role=\"alert\" aria-label=\"Divulgation des risques\">\n        <div class=\"vd-icon\">\n            <svg viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                <path d=\"M12 9V14M12 17.01L12.01 16.998M12 21C16.9706 21 21 16.9706 21 12C21 7.02944 16.9706 3 12 3C7.02944 3 3 7.02944 3 12C3 16.9706 7.02944 21 12 21Z\" stroke=\"#c0392b\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\n            <\/svg>\n        <\/div>\n        <div class=\"vd-content\">\n            <span class=\"vd-label\">Avertissement R\u00e9glementaire sur les Risques<\/span>\n            <div class=\"vd-text\"><p>Investir dans des produits financiers comporte des risques. Les pertes peuvent d\u00e9passer la valeur de votre investissement initial.<\/p><\/div>\n        <\/div>\n    <\/div>\n\r\n\r\n\r\n\r\n<div style=\"border:1.5px solid #e0e0e0;border-left:6px solid #ff8c42;border-radius:10px;background:transparent;padding:18px 24px;margin:18px 0;box-shadow:0 3px 10px rgba(255,140,66,0.08);transition:all 0.3s ease;\"><div style=\"font-size:1.55em;font-weight:600;color:#1a1a33;margin:0 0 12px 0;padding-bottom:6px;display:inline-block;border-bottom:2px solid #7a5cff;\">R\u00e9sum\u00e9 rapide<\/div><div style=\"font-size:1.05em;line-height:1.7;color:#2f3b52;text-align:justify;\">Le WETH, ou Wrapped Ethereum, est un jeton conforme \u00e0 la norme <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-erc-20\/\">ERC-20<\/a> strictement index\u00e9 1:1 sur l&rsquo;Ether (ETH) natif. Il fonctionne comme un pont permettant \u00e0 l&rsquo;ETH natif d&rsquo;interagir avec le vaste \u00e9cosyst\u00e8me des applications d\u00e9centralis\u00e9es (dApps) et des <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-a-smart-contract\/\">contrats intelligents<\/a>.<\/div><\/div>\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">En encapsulant l&rsquo;ETH, les utilisateurs peuvent participer \u00e0 des activit\u00e9s de <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-defi\/\">DeFi<\/a> telles que le trading sur des DEX, le pr\u00eat et les ench\u00e8res sur des NFT, qui n\u00e9cessitent autrement le format standardis\u00e9 ERC-20.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Comprendre le WETH permet de clarifier la mani\u00e8re dont la cryptomonnaie native d&rsquo;Ethereum participe \u00e0 l&rsquo;ensemble du paysage de la finance d\u00e9centralis\u00e9e.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\"><div class=\"volity-note-box-1\"><p style=\"margin:0!important;font-size:1.1em!important;line-height:1.6!important;color:#212529!important;font-family:inherit!important;\">Comprendre <strong style=\"font-weight:700!important;color:#212529!important;\">Wrapped Ethereum (WETH)<\/strong> est important, mais la vraie progression commence en appliquant ces connaissances. <a href=\"https:\/\/my.volity.io\/signup\" target=\"_blank\" class=\"volity-cta-link-1\">Cr\u00e9ez votre compte de trading crypto gratuit<\/a> pour vous entra\u00eener sur un compte d\u00e9mo gratuit et mettre votre strat\u00e9gie \u00e0 l\u2019\u00e9preuve.<\/p><\/div><\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-what-is-wrapped-ethereum-weth\">Qu&rsquo;est-ce que le Wrapped Ethereum (WETH) ?<\/h2>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le Wrapped Ethereum (WETH) repr\u00e9sente une version tokenis\u00e9e de l&rsquo;Ether (ETH) natif qui respecte la norme de jeton ERC-20. Cette parit\u00e9 1:1 garantit que le WETH conserve toujours exactement la m\u00eame valeur que l&rsquo;ETH, le rendant fonctionnellement identique en termes d&rsquo;\u00e9volution des prix. L&rsquo;objectif principal du WETH est de permettre \u00e0 l&rsquo;Ether de participer pleinement aux applications d\u00e9centralis\u00e9es et aux contrats intelligents n\u00e9cessitant une conformit\u00e9 ERC-20.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le WETH fonctionne comme une solution d&rsquo;interop\u00e9rabilit\u00e9 critique sur la <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/volity.io\/fr\/crypto\/ethereum\/\">blockchain Ethereum<\/a>. Il permet \u00e0 l&rsquo;ETH natif, qui pr\u00e9c\u00e8de la norme ERC-20, de s&rsquo;int\u00e9grer de mani\u00e8re transparente dans un large \u00e9ventail de protocoles DeFi. Cette int\u00e9gration d\u00e9bloque de nouvelles fonctionnalit\u00e9s pour l&rsquo;Ether sur diverses plateformes.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\" id=\"h-why-is-weth-necessary-for-the-ethereum-network-the-native-vs-token-problem\">Pourquoi le WETH est-il n\u00e9cessaire pour le r\u00e9seau Ethereum ? (Le probl\u00e8me \u00ab\u00a0Natif vs Jeton\u00a0\u00bb)<\/h3>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le WETH est devenu n\u00e9cessaire pour le r\u00e9seau Ethereum en raison des diff\u00e9rences techniques fondamentales entre l&rsquo;Ether natif et la norme de jeton ERC-20. L&rsquo;ETH natif ne peut pas interagir directement avec les contrats intelligents con\u00e7us exclusivement pour les jetons ERC-20. Cette incompatibilit\u00e9 limite l&rsquo;utilit\u00e9 de l&rsquo;ETH au sein de l&rsquo;\u00e9cosyst\u00e8me DeFi plus large.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\" id=\"h-the-historical-context-of-eth-and-the-erc-20-standard\">Le contexte historique de l&rsquo;ETH et de la norme ERC-20<\/h3>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">La cryptomonnaie native d&rsquo;Ethereum, l&rsquo;Ether (ETH), a \u00e9t\u00e9 lanc\u00e9e en juillet 2015, avant la finalisation de la norme de jeton ERC-20. La norme ERC-20, introduite en 2015 et finalis\u00e9e en 2017, d\u00e9finit un ensemble commun de r\u00e8gles pour les jetons fongibles sur la blockchain Ethereum. Cette norme pr\u00e9cise comment les jetons sont transf\u00e9r\u00e9s, comment les soldes sont consult\u00e9s et comment les jetons interagissent avec les contrats intelligents.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">L&rsquo;ETH natif ne se conforme pas intrins\u00e8quement \u00e0 ces sp\u00e9cifications ERC-20. Bien que l&rsquo;ETH serve de monnaie pour les <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/volity.io\/fr\/crypto\/gas-fees-fr\/\">frais de gaz<\/a> de la blockchain, il lui manque des fonctions sp\u00e9cifiques comme <code>approve()<\/code> ou <code>transferFrom()<\/code>, qui sont essentielles pour les interactions de jetons ERC-20 au sein des contrats intelligents. Vous pouvez en apprendre davantage sur la norme de jeton ERC-20 sur <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/ethereum.org\/en\/developers\/docs\/standards\/tokens\/erc-20\/\">Ethereum.org<\/a>.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\" id=\"h-interoperability-issues-with-native-ether\">Probl\u00e8mes d&rsquo;interop\u00e9rabilit\u00e9 avec l&rsquo;Ether natif<\/h3>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">L&rsquo;Ether natif fait face \u00e0 des probl\u00e8mes d&rsquo;interop\u00e9rabilit\u00e9 significatifs lorsqu&rsquo;il tente d&rsquo;interagir avec des applications d\u00e9centralis\u00e9es (dApps) con\u00e7ues pour g\u00e9rer des jetons ERC-20. De nombreux protocoles DeFi, y compris les <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/volity.io\/fr\/crypto\/dex-bourse-decentralisee\/\">\u00e9changes d\u00e9centralis\u00e9s (DEX)<\/a> et les plateformes de pr\u00eat, exigent explicitement que les jetons soient conformes \u00e0 la norme ERC-20. Sans WETH, l&rsquo;ETH natif ne peut pas \u00eatre directement \u00e9chang\u00e9, pr\u00eat\u00e9 ou mis en jeu (staked) aux c\u00f4t\u00e9s d&rsquo;autres jetons ERC-20 comme le DAI, l&rsquo; <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-usdc\/\">USDC<\/a> ou l&rsquo;UNI.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le WETH r\u00e9sout ce probl\u00e8me en encapsulant l&rsquo;ETH natif dans un jeton conforme \u00e0 la norme ERC-20. Cette conversion permet \u00e0 l&rsquo;Ether d&rsquo;acc\u00e9der \u00e0 toutes les fonctionnalit\u00e9s de l&rsquo;\u00e9cosyst\u00e8me DeFi d&rsquo;Ethereum. Cela permet aux d\u00e9tenteurs d&rsquo;ETH d&rsquo;utiliser leurs actifs dans des pools de liquidit\u00e9, du yield farming et des places de march\u00e9 NFT.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-how-does-the-weth-wrapping-process-work-mechanism-amp-custody\">Comment fonctionne le processus d&rsquo;encapsulation du WETH ? (M\u00e9canisme et garde)<\/h2>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le processus d&rsquo;encapsulation du WETH fonctionne en envoyant de l&rsquo;Ether natif vers un contrat intelligent sp\u00e9cifique, qui verrouille l&rsquo;actif puis g\u00e9n\u00e8re (mint) une quantit\u00e9 \u00e9quivalente de WETH. Ce m\u00e9canisme garantit une parit\u00e9 stricte de 1:1 entre l&rsquo;ETH et le WETH. Le contrat intelligent agit comme un d\u00e9positaire pour l&rsquo;Ether natif.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\" id=\"h-converting-eth-to-weth-minting-via-smart-contract\">Conversion de l&rsquo;ETH en WETH (G\u00e9n\u00e9ration via contrat intelligent)<\/h3>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">La conversion de l&rsquo;ETH natif en WETH implique une transaction avec un contrat intelligent WETH. Les utilisateurs envoient le montant d&rsquo;ETH souhait\u00e9 \u00e0 cette adresse de contrat. \u00c0 la r\u00e9ception de l&rsquo;ETH, le contrat le verrouille et \u00ab\u00a0g\u00e9n\u00e8re\u00a0\u00bb une quantit\u00e9 \u00e9gale de jetons WETH.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Par exemple, l&rsquo;envoi de 1 ETH au contrat intelligent WETH entra\u00eene la cr\u00e9ation de 1 WETH. Ce processus entra\u00eene g\u00e9n\u00e9ralement des frais de gaz minimes en Gwei, car il implique une transaction sur la blockchain. L&rsquo;adresse du contrat WETH canonique est v\u00e9rifiable sur des plateformes comme <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/etherscan.io\/token\/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2\">Etherscan<\/a>, et sa source officielle est <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/weth.io\/\">WETH.io<\/a>.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\"><div class=\"volity-cta-box-2\"><p style=\"margin-top:0!important;margin-bottom:10px!important;font-size:1.1em!important;color:#212529!important;font-family:inherit!important;line-height:1.6!important;\"><strong style=\"font-weight:700!important;color:#212529!important;\">Pr\u00eat \u00e0 faire passer votre trading au niveau sup\u00e9rieur ?<\/strong><\/p><p style=\"margin-bottom:20px!important;font-size:1em!important;color:#212529!important;font-family:inherit!important;line-height:1.6!important;\">Vous avez les connaissances. Il vous manque la plateforme. Rejoignez des milliers de traders qui choisissent Volity pour ses outils puissants, son ex\u00e9cution rapide et son support d\u00e9di\u00e9.<\/p><a href=\"https:\/\/my.volity.io\/signup\" target=\"_blank\" class=\"volity-cta-button-2\">Cr\u00e9ez votre compte en moins de 3 minutes<\/a><\/div><\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\" id=\"h-converting-weth-to-eth-unwrapping-and-burning\">Conversion du WETH en ETH (D\u00e9sencapsulation et destruction)<\/h3>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">La conversion du WETH en ETH natif, souvent appel\u00e9e \u00ab\u00a0d\u00e9sencapsulation\u00a0\u00bb (unwrapping), inverse le processus initial. Les utilisateurs renvoient leurs jetons WETH au m\u00eame contrat intelligent WETH. Le contrat \u00ab\u00a0d\u00e9truit\u00a0\u00bb (burn) alors les jetons WETH re\u00e7us et \u00ab\u00a0lib\u00e8re\u00a0\u00bb la quantit\u00e9 \u00e9quivalente d&rsquo;ETH natif de ses r\u00e9serves verrouill\u00e9es.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Cette d\u00e9sencapsulation entra\u00eene \u00e9galement des frais de gaz, similaires au processus d&rsquo;encapsulation. Le m\u00e9canisme garantit que pour chaque jeton WETH en circulation, exactement un jeton ETH natif reste verrouill\u00e9 au sein du contrat intelligent. Ce processus transparent et v\u00e9rifiable maintient la parit\u00e9 1:1 de mani\u00e8re coh\u00e9rente.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-weth-vs-eth-key-technical-differences\">WETH vs ETH : Diff\u00e9rences techniques cl\u00e9s<\/h2>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-full\"><img width="1024" height="572" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/volity.io\/wp-content\/uploads\/2025\/04\/image-1.png\" alt=\"WETH vs. ETH\" class=\"wp-image-22103\"\/><\/figure>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le WETH et l&rsquo;ETH ne sont pas techniquement identiques, malgr\u00e9 leur parit\u00e9 de valeur 1:1. Leur principale diff\u00e9rence r\u00e9side dans leurs normes techniques et fonctionnalit\u00e9s sous-jacentes. L&rsquo;ETH fonctionne comme la monnaie native de la blockchain Ethereum, tandis que le WETH existe en tant que jeton ERC-20 construit <em>sur<\/em> cette blockchain.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Cette distinction devient critique pour les interactions avec les contrats intelligents. L&rsquo;ETH agit comme le paiement du gaz du r\u00e9seau, alors que le WETH ne peut pas remplir ce r\u00f4le. Le WETH, cependant, offre l&rsquo;interop\u00e9rabilit\u00e9 qui manque \u00e0 l&rsquo;ETH au sein de l&rsquo;\u00e9cosyst\u00e8me ERC-20. Le tableau ci-dessous met en \u00e9vidence leurs principales diff\u00e9rences techniques.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Caract\u00e9ristique<\/td><td>Ethereum (ETH)<\/td><td>Wrapped Ethereum (WETH)<\/td><\/tr><tr><td>Type d&rsquo;actif<\/td><td>Monnaie native (devise <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-l1-vs-l2\/\">Layer 1<\/a>)<\/td><td>Jeton ERC-20<\/td><\/tr><tr><td><a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-a-gas-fee\/\">Frais de gaz<\/a><\/td><td>Utilis\u00e9 pour payer les frais de gaz<\/td><td>Ne peut pas \u00eatre utilis\u00e9 pour payer les frais de gaz<\/td><\/tr><tr><td>Interop\u00e9rabilit\u00e9<\/td><td>Limit\u00e9e dans certaines dApps<\/td><td>\u00c9lev\u00e9e (compatible ERC-20)<\/td><\/tr><tr><td>Source de valeur<\/td><td>Demande du march\u00e9<\/td><td>Index\u00e9 1:1 sur l&rsquo;ETH<\/td><\/tr><tr><td>Cr\u00e9ation<\/td><td><a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-mining-in-crypto\/\">Minage<\/a> \/ <a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-staking\/\">Staking<\/a> (<a href=\"https:\/\/volity.io\/fr\/glossaire\/what-is-proof-of-stake\/\">PoS<\/a>)<\/td><td>G\u00e9n\u00e9ration via contrat intelligent<\/td><\/tr><\/tbody><\/table><\/figure>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-primary-use-cases-for-weth-in-decentralized-finance-defi\">Principaux cas d&rsquo;utilisation du WETH dans la finance d\u00e9centralis\u00e9e (DeFi)<\/h2>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le WETH sert plusieurs cas d&rsquo;utilisation principaux au sein de la finance d\u00e9centralis\u00e9e, principalement en permettant \u00e0 l&rsquo;Ether natif de fonctionner de mani\u00e8re transparente avec les plateformes conformes \u00e0 la norme ERC-20. Sans WETH, les d\u00e9tenteurs d&rsquo;ETH feraient face \u00e0 des limitations significatives pour participer \u00e0 diverses activit\u00e9s DeFi. Le WETH fournit une liquidit\u00e9 et une utilit\u00e9 cruciales \u00e0 travers l&rsquo;\u00e9cosyst\u00e8me.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\" id=\"h-trading-on-decentralized-exchanges-uniswap-sushiswap\">Trading sur les \u00e9changes d\u00e9centralis\u00e9s (Uniswap\/Sushiswap)<\/h3>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Les \u00e9changes d\u00e9centralis\u00e9s (DEX) comme Uniswap, Sushiswap et PancakeSwap fonctionnent principalement en utilisant des jetons ERC-20. Ces plateformes utilisent des <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/volity.io\/fr\/crypto\/automated-market-maker-amm\/\">teneurs de march\u00e9 automatis\u00e9s (AMM)<\/a> qui exigent que les paires de jetons respectent la m\u00eame norme. Comme l&rsquo;ETH natif n&rsquo;est pas un jeton ERC-20, il ne peut pas former directement des pools de liquidit\u00e9 avec d&rsquo;autres jetons ERC-20.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le WETH r\u00e9sout ce probl\u00e8me en permettant \u00e0 l&rsquo;ETH d&rsquo;\u00eatre converti au format ERC-20. Cela permet aux utilisateurs de fournir du WETH aux c\u00f4t\u00e9s d&rsquo;autres jetons ERC-20 (par exemple, WETH\/USDC) dans des <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/volity.io\/fr\/crypto\/pools-de-liquidite-crypto\/\">pools de liquidit\u00e9<\/a>, facilitant ainsi le trading et la fourniture de liquidit\u00e9. Cela \u00e9largit consid\u00e9rablement les opportunit\u00e9s de trading.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\" id=\"h-nft-bidding-and-marketplaces-opensea\">Ench\u00e8res NFT et places de march\u00e9 (OpenSea)<\/h3>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Les places de march\u00e9 NFT d\u00e9pendent \u00e9galement fortement de la compatibilit\u00e9 avec les jetons ERC-20 pour diverses fonctions, y compris les ench\u00e8res. Des plateformes comme OpenSea exigent souvent du WETH pour placer des ench\u00e8res sur des NFT. C&rsquo;est parce que le syst\u00e8me d&rsquo;ench\u00e8res fonctionne via des contrats intelligents qui imposent des interactions avec des jetons ERC-20.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Lorsqu&rsquo;un utilisateur place une ench\u00e8re sur un NFT, son WETH est verrouill\u00e9 dans un contrat intelligent. Si son ench\u00e8re est accept\u00e9e, le WETH est transf\u00e9r\u00e9 au vendeur. Ce m\u00e9canisme garantit des processus d&rsquo;ench\u00e8res \u00e9quitables et transparents sur ces plateformes.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\"><div class=\"volity-cta-box-3\"><p style=\"margin-top:0!important;margin-bottom:10px!important;font-size:1.1em!important;color:#212529!important;font-family:inherit!important;line-height:1.6!important;\"><strong style=\"font-weight:700!important;color:#212529!important;\">Transformez vos connaissances en profit<\/strong><\/p><p style=\"margin-bottom:20px!important;font-size:1em!important;color:#212529!important;font-family:inherit!important;line-height:1.6!important;\">Vous avez lu, il est temps d\u2019agir. La meilleure fa\u00e7on d\u2019apprendre, c\u2019est en pratiquant. Ouvrez un compte d\u00e9mo gratuit et sans risque et entra\u00eenez votre strat\u00e9gie avec des fonds virtuels d\u00e8s aujourd\u2019hui.<\/p><a href=\"https:\/\/my.volity.io\/signup\" target=\"_blank\" class=\"volity-cta-button-3\">Ouvrir un compte d\u00e9mo gratuit<\/a><\/div><\/p>\r\n\r\n\r\n\n    <div class=\"keytakeaways-container\">\n        <p class=\"keytakeaways-title\"><strong>Points cl\u00e9s<\/strong><\/p>\n        <ul class=\"keytakeaways-list\"><\/p>\n<li>Compatibilit\u00e9 ERC-20 : Le WETH fournit la standardisation n\u00e9cessaire pour que l&rsquo;Ether natif puisse interagir avec les protocoles DeFi modernes et les contrats intelligents.<\/li>\n<li>Maintien de la parit\u00e9 1:1 : Gr\u00e2ce \u00e0 un m\u00e9canisme transparent de g\u00e9n\u00e9ration et de destruction au sein d&rsquo;un contrat intelligent d\u00e9positaire, le WETH maintient toujours la valeur exacte de l&rsquo;ETH natif.<\/li>\n<li>Ancre d&rsquo;interop\u00e9rabilit\u00e9 : Le WETH est essentiel pour les activit\u00e9s \u00e0 haut volume comme les pools de trading DEX, les march\u00e9s de pr\u00eat (Aave) et les ench\u00e8res NFT (OpenSea).<\/li>\n<li>Distinction des frais de gaz : Bien que l&rsquo;ETH soit l&rsquo;actif principal pour payer les frais de transaction du r\u00e9seau, le WETH ne peut pas \u00eatre utilis\u00e9 pour le gaz et n\u00e9cessite une petite r\u00e9serve d&rsquo;ETH pour \u00eatre d\u00e9sencapsul\u00e9.<\/li>\n<p><\/ul>\n    <\/div>\n    <style>\n    .keytakeaways-container { background-color: #fff; padding: 25px; border: 1px solid #800080; border-radius: 10px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); max-width: 700px; margin: 30px auto; }\n    .keytakeaways-title { text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; border-bottom: 2px solid #800080; padding-bottom: 10px; font-weight: bold; font-size: 18px; }\n    .keytakeaways-list { list-style: none; margin: 0; padding: 0; }\n    .keytakeaways-list li { line-height: 1.8; margin-bottom: 15px; position: relative; padding-left: 25px; }\n    .keytakeaways-list li::before { content: \"\"; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 8px; height: 8px; border-radius: 50%; background-color: #800080; }\n    @media (max-width: 768px) { .keytakeaways-container { padding: 20px; margin: 20px auto; } .keytakeaways-title { font-size: 16px; } .keytakeaways-list li { font-size: 14px; } }\n    <\/style>\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-bottom-line\">Conclusion<\/h2>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Le WETH est le h\u00e9ros m\u00e9connu de l&rsquo;\u00e9cosyst\u00e8me Ethereum, fournissant la standardisation essentielle n\u00e9cessaire pour combler le foss\u00e9 entre les actifs natifs et la logique des contrats intelligents. En encapsulant l&rsquo;ETH au format ERC-20, les utilisateurs obtiennent un acc\u00e8s illimit\u00e9 au monde \u00e0 haut rendement de la DeFi et au march\u00e9 florissant des NFT sans sacrifier leur exposition au prix de l&rsquo;ETH. Alors que la finance d\u00e9centralis\u00e9e continue de m\u00fbrir, le WETH reste un outil fondamental pour tout investisseur cherchant \u00e0 maximiser l&rsquo;utilit\u00e9 de ses actifs num\u00e9riques.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-faq\">FAQ<\/h2>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-faqs\">Questions fr\u00e9quemment pos\u00e9es<\/h2>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">    \n    <div class=\"faq-accordion\">\n            <\/div>\n    <style>\n    .faq-accordion {\n        max-width: 800px;\n        margin: auto;\n        display: flex;\n        flex-direction: column;\n        gap: 10px;\n    }\n    .faq-card {\n        background: #fff;\n        border-radius: 8px;\n        border: 1px solid #ddd;\n        overflow: hidden;\n        box-shadow: 0 2px 6px rgba(0,0,0,0.05);\n        transition: box-shadow 0.3s ease;\n    }\n    .faq-question {\n        padding: 15px 20px;\n        font-weight: bold;\n        font-size: 1rem;\n        cursor: pointer;\n        display: flex;\n        justify-content: space-between;\n        align-items: center;\n        background: #f8f9fa;\n        transition: background 0.3s ease;\n    }\n    .faq-card:hover .faq-question {\n        background: #f1f3f5;\n    }\n    \n    \/* DEFAULT STATE - ANSWERS VISIBLE *\/\n    .faq-answer {\n        display: block !important;\n        padding: 15px 20px;\n        border-top: 1px solid #eee;\n        color: #444;\n        background: #fff;\n        animation: fadeIn 0.3s ease-in-out;\n        max-height: 1000px;\n        overflow: visible;\n        transition: max-height 0.3s ease, opacity 0.3s ease;\n        opacity: 1 !important;\n    }\n    \n    \/* HIDDEN STATE - When .active class is toggled *\/\n    .faq-card.active .faq-answer {\n        display: none !important;\n        max-height: 0;\n        opacity: 0 !important;\n        padding: 0 20px;\n    }\n    \n    \/* ARROW LOGIC *\/\n    .faq-arrow {\n        font-size: 1.2rem;\n        transition: transform 0.3s ease;\n        transform: rotate(0deg);\n    }\n    \n    .faq-card.active .faq-arrow {\n        transform: rotate(180deg);\n    }\n    \n    @keyframes fadeIn {\n        from { opacity: 0; transform: translateY(-5px); }\n        to { opacity: 1; transform: translateY(0); }\n    }\n    <\/style>\n    <script>\n    document.addEventListener(\"DOMContentLoaded\", function () {\n        document.querySelectorAll(\".faq-question\").forEach(function (question) {\n            question.addEventListener(\"click\", function () {\n                const card = this.parentElement;\n                card.classList.toggle(\"active\");\n            });\n        });\n    });\n    <\/script>\n    <\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\" id=\"h-references\">R\u00e9f\u00e9rences<\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><a href=\"https:\/\/ethereum.org\/en\/developers\/docs\/standards\/tokens\/erc-20\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ethereum.org &#8211; Norme de jeton ERC-20<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/weth.io\/\" target=\"_blank\" rel=\"noreferrer noopener\">WETH.io &#8211; Site officiel<\/a><\/li>\r\n\r\n\r\n\r\n<li><a href=\"https:\/\/etherscan.io\/token\/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2\" target=\"_blank\" rel=\"noreferrer noopener\">Etherscan &#8211; Adresse du contrat WETH<\/a><\/li>\r\n<\/ul>\r\n<div class=\"quick-answer\" data-volity-unique=\"1\" style=\"background:#f7f7f7;border-left:4px solid #0066cc;padding:12px 16px;margin:16px 0;\"><strong>R\u00e9ponse rapide :<\/strong> Le WETH est une repr\u00e9sentation ERC-20 de l&rsquo;ETH natif, g\u00e9n\u00e9r\u00e9e un pour un lorsque vous d\u00e9posez de l&rsquo;ETH dans le contrat Wrapped Ether canonique. Il existe parce que la plupart des protocoles DeFi et des routeurs DEX attendent des jetons ERC-20, alors que l&rsquo;ETH natif lui-m\u00eame n&rsquo;impl\u00e9mente pas cette interface.<\/div><p><strong>Ce que nos analystes surveillent :<\/strong> Alexander Bennett, responsable de la recherche chez Volity, suit le WETH comme un signal de plomberie DeFi, et non comme une recommandation de prix. Nous surveillons le solde du contrat canonique 0xC02 comme un indicateur de la liquidit\u00e9 DeFi active, l&rsquo;\u00e9conomie des co\u00fbts de gaz pour l&rsquo;encapsulation lors des journ\u00e9es calmes, et la migration de l&rsquo;offre de WETH L2 vers Base, Arbitrum et Optimism. Les co\u00fbts de d\u00e9sencapsulation augmentent lorsque le r\u00e9seau est congestionn\u00e9, donc la tarification de l&rsquo;espace de bloc compte autant que le prix du jeton.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><div class=\"volity-authority-footer\" data-volity-authority=\"cleanup-2026-06-02\"><h3 class=\"wp-block-heading\">Sources v\u00e9rifi\u00e9es<\/h3><ul><li><a href=\"https:\/\/www.investopedia.com\/\" rel=\"noopener\" target=\"_blank\">Investopedia<\/a><\/li><li><a href=\"https:\/\/www.coindesk.com\/\" rel=\"noopener\" target=\"_blank\">CoinDesk<\/a><\/li><li><a href=\"https:\/\/coinmarketcap.com\/\" rel=\"noopener\" target=\"_blank\">CoinMarketCap<\/a><\/li><li><a href=\"https:\/\/www.irs.gov\/\" rel=\"noopener\" target=\"_blank\">IRS<\/a><\/li><\/ul><\/div>\r\n\r\n\n    <style>\n    .volity-coi {\n        background: #fff;\n        border: 1px solid #c5d8ee;\n        border-radius: 8px;\n        margin: 32px 0;\n        font-family: \"Inter\", sans-serif;\n        font-size: 13.5px;\n        line-height: 1.75;\n        color: #4a4a4a;\n        box-sizing: border-box;\n        width: 100%;\n        overflow: hidden;\n    }\n    .volity-coi .coi-heading {\n        display: block;\n        background: #2c6fad;\n        color: #fff;\n        font-size: 11px;\n        font-weight: 700;\n        letter-spacing: 0.09em;\n        text-transform: uppercase;\n        padding: 9px 22px;\n        margin: 0;\n    }\n    .volity-coi .coi-body { padding: 16px 22px; }\n    .volity-coi .coi-body p { margin: 0 0 10px 0; }\n    .volity-coi .coi-body p:last-child { margin-bottom: 0; }\n    .volity-coi a { color: #2c6fad; text-decoration: underline; }\n    @media(max-width:480px) {\n        .volity-coi .coi-body { padding: 14px 16px; font-size: 13px; }\n        .volity-coi .coi-heading { padding: 8px 16px; }\n    }\n    <\/style>\n    <div class=\"volity-coi\" role=\"note\">\n        <span class=\"coi-heading\">\u24d8 Divulgation<\/span>\n        <div class=\"coi-body\"><p>Volity exploite une plateforme de trading et publie \u00e9galement du contenu \u00e9ducatif et analytique sur le trading. Le contenu de cette page est uniquement \u00e0 des fins \u00e9ducatives et ne doit pas \u00eatre consid\u00e9r\u00e9 comme un conseil financier. Volity peut b\u00e9n\u00e9ficier commercialement lorsque les lecteurs ouvrent des comptes de trading via les liens pr\u00e9sents sur ce site.<\/p><p>Notre contenu est produit et r\u00e9vis\u00e9 selon des <a href=\"https:\/\/volity.io\/fr\/editorial-standards\/\">standards \u00e9ditoriaux<\/a> document\u00e9s ; la m\u00e9thodologie de comparaison et de revue est publi\u00e9e <a href=\"https:\/\/volity.io\/fr\/editorial-standards\/review-methodology\/\">ici<\/a>.<\/p><\/div>\n    <\/div>\n\r\n","protected":false},"excerpt":{"rendered":"<p>R\u00e9ponse rapide Le WETH (Wrapped Ether) est un jeton qui repr\u00e9sente l&rsquo;Ether (ETH) au ratio de un pour un mais suit le [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":12428,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"custom_schema":"","footnotes":""},"categories":[205],"tags":[],"class_list":["post-15088","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-crypto"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Qu\u2019est\u2011ce que WETH Crypto ? \u2013 Volity<\/title>\n<meta name=\"description\" content=\"WETH est une version tokenis\u00e9e d\u2019Ether qui peut \u00eatre utilis\u00e9e dans les applications DeFi, les \u00e9changes d\u00e9centralis\u00e9s (DEX) et les contrats intelligents.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/volity.io\/fr\/crypto\/weth-ether-enveloppe\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu\u2019est\u2011ce que WETH Crypto ? \u2013 Volity\" \/>\n<meta property=\"og:description\" content=\"WETH est une version tokenis\u00e9e d\u2019Ether qui peut \u00eatre utilis\u00e9e dans les applications DeFi, les \u00e9changes d\u00e9centralis\u00e9s (DEX) et les contrats intelligents.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/volity.io\/fr\/crypto\/weth-ether-enveloppe\/\" \/>\n<meta property=\"og:site_name\" content=\"Volity\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61570055360264\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-17T10:55:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-10T15:09:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/volity.io\/wp-content\/uploads\/2025\/04\/Weth-Crypto-1024x536.webp\" \/>\n<meta name=\"author\" content=\"Alexander Bennett\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Qu\u2019est\u2011ce que WETH Crypto ?\" \/>\n<meta name=\"twitter:creator\" content=\"@VolityBeat\" \/>\n<meta name=\"twitter:site\" content=\"@VolityBeat\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alexander Bennett\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/volity.io\\\/fr\\\/crypto\\\/weth-ether-enveloppe\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/volity.io\\\/fr\\\/crypto\\\/weth-ether-enveloppe\\\/\"},\"author\":{\"name\":\"Alexander Bennett\",\"@id\":\"https:\\\/\\\/volity.io\\\/fr\\\/#\\\/schema\\\/person\\\/b331ae22e808d4e5c67047ab75976841\"},\"headline\":\"Qu\u2019est\u2011ce que WETH Crypto 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