{"id":33870,"date":"2019-10-31T21:55:08","date_gmt":"2019-10-31T18:55:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/corda-open-source-blokchejn-dlya-biznesa\/"},"modified":"2019-10-31T21:55:08","modified_gmt":"2019-10-31T18:55:08","slug":"corda-open-source-blokchejn-dlya-biznesa","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/corda-open-source-blokchejn-dlya-biznesa","title":{"rendered":"Corda \u2014 blockchain open source per le imprese","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/corda\/corda\">Corda<\/a><\/noindex> \u00e8 un registro distribuito per la memorizzazione, la gestione e la sincronizzazione degli obblighi finanziari tra diverse organizzazioni finanziarie.<br \/>\n<img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/4dd7c4b5e177c7fdc59eef739a052bb3.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex>Corda ha una documentazione piuttosto completa con video-lezioni, che si possono trovare <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.corda.net\/index.html\">qui<\/a><\/noindex>. Prover\u00f2 a descrivere brevemente come \u00e8 strutturato Corda internamente.<\/p>\n<p>Esaminiamo le caratteristiche principali di Corda e la sua unicit\u00e0 rispetto ad altri blockchain:<\/p>\n<ul>\n<li>Corda non ha una criptovaluta propria. <\/li>\n<li>Corda non utilizza il concetto di mining e il sistema Proof-of-Work.<\/li>\n<li>La trasmissione dei dati avviene solo tra i partecipanti alla transazione\/ contratto. Non c'\u00e8 broadcasting globale a tutti i nodi della rete. <\/li>\n<li>Non esiste un controllo centralizzato che gestisca tutte le transazioni.<\/li>\n<li>Corda supporta diversi meccanismi di consenso.<\/li>\n<li>Il consenso si raggiunge tra i partecipanti a livello di singolo accordo\/contratto, non a livello di intero sistema.<\/li>\n<li>La transazione viene confermata solo dai partecipanti coinvolti.<\/li>\n<li>Corda offre un collegamento diretto tra il linguaggio giuridico umano formale e il codice dei contratti smart.<\/li>\n<\/ul>\n<p><\/p>\n<h3>Il registro<\/h3>\n<p>\nIl concetto di ledger in Corda \u00e8 soggettivo. Non esiste un'unica archiviazione centrale dei dati. Invece, ogni nodo mantiene un database separato dei fatti a lui noti.<\/p>\n<p>Ad esempio, immagina una rete di 5 nodi, dove il cerchio rappresenta un fatto noto al nodo.<\/p>\n<p><img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/538ca02bcd0488dbcf626d4e9bc704f2.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nCome possiamo vedere, Ed, Carl e Demi conoscono il fatto 3, mentre Alice e Bob nemmeno lo sospettano. Corda garantisce che i fatti comuni siano conservati nel database di ogni nodo, e i dati saranno identici. <\/p>\n<h3>Stati<\/h3>\n<p>\nUno stato \u00e8 <i>immutabile<\/i> un oggetto che rappresenta un fatto noto a uno o pi\u00f9 nodi della rete in un determinato momento.<\/p>\n<p>Gli stati possono contenere dati arbitrari, come azioni, obbligazioni, prestiti, informazioni identificative.<\/p>\n<p>Ad esempio, il seguente stato rappresenta un IOU - un accordo secondo cui Alice deve a Bob una somma X:<\/p>\n<p><img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/19375664e05d42eb646dfbcab2c0638a.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nIl ciclo di vita di un fatto nel tempo \u00e8 rappresentato da una sequenza di stati. Quando \u00e8 necessario aggiornare lo stato attuale, creiamo un nuovo stato e segniamo quello attuale come storico (historic).<\/p>\n<p><img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/f3ab2bd8a7c4cb6df40f003aa88cc0fd.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h3>Transazioni<\/h3>\n<p>\nLe transazioni sono proposte di aggiornamento del ledger. Non vengono trasmesse a tutti i partecipanti al ledger e sono disponibili solo per coloro che hanno il diritto legittimo di visualizzarle e gestirle.<\/p>\n<p>La transazione verr\u00e0 aggiunta al ledger se:<\/p>\n<ul>\n<li>\u00e8 contrattualmente valida<\/li>\n<li>\u00e8 firmata da tutti i partecipanti necessari<\/li>\n<li>non contiene spese doppie (double-spends)<\/li>\n<\/ul>\n<p>\nCorda utilizza un modello UTXO (unspent transaction output), in cui ogni stato del ledger \u00e8 immutabile. <\/p>\n<p>Durante la creazione, la transazione riceve come input lo stato output della transazione precedente (attraverso hash e indice).<\/p>\n<p><img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/f26706fc6ae514926ab7cc3d1e18aef7.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nCiclo di vita di una transazione:<\/p>\n<ul>\n<li>Creazione (Attualmente la transazione \u00e8 solo una proposta di aggiornamento del ledger) <\/li>\n<li>Raccolta delle firme (I partecipanti necessari alla transazione approvano la proposta di aggiornamento aggiungendo la propria firma alla transazione)<\/li>\n<li>Commit della transazione nel ledger<\/li>\n<\/ul>\n<p>\nDopo l'aggiunta della transazione al ledger, gli stati di input vengono contrassegnati come storici e non possono essere utilizzati in future transazioni.<\/p>\n<p><img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/b2525d6861369163bedddcc4662d2f5b.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nOltre agli stati di input e output, la transazione pu\u00f2 contenere:<\/p>\n<ul>\n<li>Comandi (parametro della transazione che indica l'obiettivo della transazione) <\/li>\n<li>Allegati (calendario delle festivit\u00e0, convertitore di valuta) <\/li>\n<li>Finestre temporali (durata)<\/li>\n<li>Notaio (Notary, partecipanti speciali della rete che convalidano transazioni) <\/li>\n<\/ul>\n<p>\n<img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/776d3d738f344acc65182e5dc67d9673.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h3>Contratti<\/h3>\n<p>\nQuando parliamo di validit\u00e0 di una transazione, ci riferiamo non solo alla presenza delle firme necessarie, ma anche alla validit\u00e0 secondo il contratto. Ogni transazione \u00e8 associata a un contratto che la accetta e convalida gli stati di entrata e uscita. Una transazione \u00e8 considerata valida solo se tutti i suoi stati sono validi.<\/p>\n<p>I contratti in Corda possono essere scritti in qualsiasi linguaggio della JVM (ad esempio, Java, Kotlin).<\/p>\n<pre><code class=\"kotlin\">class CommercialPaper : Contract {\n    override fun verify(tx: LedgerTransaction) {\n        TODO()\n    }\n}\n<\/code><\/pre>\n<p>\n\u00c8 necessario estendere la classe <i>Contract<\/i> e sovrascrivere il metodo <i>verify<\/i>. In caso di invalidit\u00e0 della transazione, deve essere sollevata un'eccezione.<\/p>\n<p>La validazione delle transazioni deve essere deterministica, ossia il contratto deve sempre accettare o rifiutare la transazione. Di conseguenza, la validit\u00e0 della transazione non pu\u00f2 dipendere dal tempo, dai numeri casuali, dai file del nodo della rete, ecc.<\/p>\n<p>In Corda, i contratti vengono eseguiti nella cosiddetta sandbox, una JVM leggermente modificata che garantisce l'esecuzione deterministica dei contratti. <\/p>\n<h3>Flussi<\/h3>\n<p>\nPer automatizzare la comunicazione tra i nodi della rete, sono stati aggiunti dei flussi.<\/p>\n<p>Un flusso \u00e8 una sequenza di passaggi che informa un nodo su come eseguire un aggiornamento specifico del ledger, indicando quando \u00e8 necessario firmare e validare la transazione.<\/p>\n<p><img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/f23038fa73013d5cb2b3b980cd43a326.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nA volte sono necessarie ore o persino giorni affinch\u00e9 la transazione venga firmata da tutte le parti e registrata nel ledger. Cosa accade se un nodo coinvolto nella transazione si disconnette? I flussi hanno punti di controllo, nei quali gli stati del flusso vengono registrati nel database del nodo. Quando il nodo viene ripristinato nella rete, riprender\u00e0 da dove si era fermato.<\/p>\n<h3>Consenso<\/h3>\n<p>\nPer essere registrata nel ledger, una transazione deve raggiungere 2 consensi: sulla validit\u00e0 e sull'unicit\u00e0.<\/p>\n<p>La decisione sulla validit\u00e0 della transazione \u00e8 presa solo dalle parti direttamente coinvolte.<\/p>\n<p>I nodi notarili verificano l'unicit\u00e0 della transazione, evitando doppie spese.<\/p>\n<p>Immaginiamo che Bob abbia 100$ e voglia trasferire 80$ a Charlie e 70$ a Dan, utilizzando lo stesso stato di input. <\/p>\n<p><img decoding=\"async\" alt=\"Corda \u2014 blockchain open source per le imprese\" src=\"\/wp-content\/uploads\/2019\/05\/159a5b0f2a5c1e38f52d7739707efa8a.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nCorda non permetterebbe un tale trucco. Sebbene la transazione superi il controllo di validit\u00e0, il controllo di unicit\u00e0 fallirebbe. <\/p>\n<h3>Conclusione<\/h3>\n<p>\nLa piattaforma Corda, sviluppata dal consorzio blockchain R3, non \u00e8 un esempio puro di utilizzo della tecnologia blockchain. Corda \u00e8 uno strumento piuttosto specializzato per organizzazioni finanziarie.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/452258\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Corda \u2014 \u044d\u0442\u043e \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0439 Ledger \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f, \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u0445 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u0441\u0442\u0432 \u043c\u0435\u0436\u0434\u0443 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u043c\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f\u043c\u0438. \u0423 Corda \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0445\u043e\u0440\u043e\u0448\u0430\u044f \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u0441 \u0432\u0438\u0434\u0435\u043e-\u043b\u0435\u043a\u0446\u0438\u044f\u043c\u0438, \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u0437\u0434\u0435\u0441\u044c. \u042f \u043f\u043e\u0441\u0442\u0430\u0440\u0430\u044e\u0441\u044c \u043a\u0440\u0430\u0442\u043a\u043e \u043e\u043f\u0438\u0441\u0430\u0442\u044c \u043a\u0430\u043a \u0443\u0441\u0442\u0440\u043e\u0435\u043d Corda \u0432\u043d\u0443\u0442\u0440\u0438. \u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 Corda \u0438 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0435\u0433\u043e \u0441\u0440\u0435\u0434\u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u0431\u043b\u043e\u043a\u0447\u0435\u0439\u043d\u043e\u0432: \u0423 Corda \u043d\u0435\u0442 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u043a\u0440\u0438\u043f\u0442\u043e\u0432\u0430\u043b\u044e\u0442\u044b. Corda \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u043a\u043e\u043d\u0446\u0435\u043f\u0446\u0438\u044e \u043c\u0430\u0439\u043d\u0438\u043d\u0433\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25536,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-33870","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Corda \u2014 \u044d\u0442\u043e \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0439 Ledger \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f, \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u0445 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u0441\u0442\u0432 \u043c\u0435\u0436\u0434\u0443 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u043c\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f\u043c\u0438. \u0423 Corda \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0445\u043e\u0440\u043e\u0448\u0430\u044f \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u0441 \u0432\u0438\u0434\u0435\u043e-\u043b\u0435\u043a\u0446\u0438\u044f\u043c\u0438, \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u0437\u0434\u0435\u0441\u044c. \u042f \u043f\u043e\u0441\u0442\u0430\u0440\u0430\u044e\u0441\u044c \u043a\u0440\u0430\u0442\u043a\u043e \u043e\u043f\u0438\u0441\u0430\u0442\u044c \u043a\u0430\u043a \u0443\u0441\u0442\u0440\u043e\u0435\u043d Corda \u0432\u043d\u0443\u0442\u0440\u0438. \u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 Corda \u0438 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0435\u0433\u043e \u0441\u0440\u0435\u0434\u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u0431\u043b\u043e\u043a\u0447\u0435\u0439\u043d\u043e\u0432: \u0423 Corda \u043d\u0435\u0442 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u043a\u0440\u0438\u043f\u0442\u043e\u0432\u0430\u043b\u044e\u0442\u044b. Corda \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u043a\u043e\u043d\u0446\u0435\u043f\u0446\u0438\u044e \u043c\u0430\u0439\u043d\u0438\u043d\u0433\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/corda-open-source-blokchejn-dlya-biznesa\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"it_IT\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47Corda \u2014 open source \u0431\u043b\u043e\u043a\u0447\u0435\u0439\u043d \u0434\u043b\u044f \u0431\u0438\u0437\u043d\u0435\u0441\u0430 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"Corda \u2014 \u044d\u0442\u043e \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0439 Ledger \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f, \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u0445 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u0441\u0442\u0432 \u043c\u0435\u0436\u0434\u0443 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u043c\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f\u043c\u0438. \u0423 Corda \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0445\u043e\u0440\u043e\u0448\u0430\u044f \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u0441 \u0432\u0438\u0434\u0435\u043e-\u043b\u0435\u043a\u0446\u0438\u044f\u043c\u0438, \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u0437\u0434\u0435\u0441\u044c. \u042f \u043f\u043e\u0441\u0442\u0430\u0440\u0430\u044e\u0441\u044c \u043a\u0440\u0430\u0442\u043a\u043e \u043e\u043f\u0438\u0441\u0430\u0442\u044c \u043a\u0430\u043a \u0443\u0441\u0442\u0440\u043e\u0435\u043d Corda \u0432\u043d\u0443\u0442\u0440\u0438. \u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 Corda \u0438 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0435\u0433\u043e \u0441\u0440\u0435\u0434\u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u0431\u043b\u043e\u043a\u0447\u0435\u0439\u043d\u043e\u0432: \u0423 Corda \u043d\u0435\u0442 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u043a\u0440\u0438\u043f\u0442\u043e\u0432\u0430\u043b\u044e\u0442\u044b. Corda \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u043a\u043e\u043d\u0446\u0435\u043f\u0446\u0438\u044e \u043c\u0430\u0439\u043d\u0438\u043d\u0433\u0430\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/corda-open-source-blokchejn-dlya-biznesa\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2019-10-31T18:55:08+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T18:55:08+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Corda \u2014 blockchain open source per le imprese | ProHoster","description":"Corda \u00e8 un ledger distribuito per la memorizzazione, gestione e sincronizzazione degli obblighi finanziari tra diverse organizzazioni finanziarie. Corda ha una documentazione piuttosto buona con video-lezioni, che si possono trovare qui. Cercher\u00f2 di descrivere brevemente come \u00e8 strutturata Corda internamente. Esaminiamo le principali caratteristiche di Corda e la sua unicit\u00e0 rispetto ad altre blockchain: Corda non ha una criptovaluta propria. Corda non utilizza il concetto di mining.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/corda-open-source-blokchejn-dlya-biznesa","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47Corda \u2014 open source \u0431\u043b\u043e\u043a\u0447\u0435\u0439\u043d \u0434\u043b\u044f \u0431\u0438\u0437\u043d\u0435\u0441\u0430 | ProHoster","og:description":"Corda \u2014 \u044d\u0442\u043e \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0439 Ledger \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f, \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u0445 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u0441\u0442\u0432 \u043c\u0435\u0436\u0434\u0443 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u043c\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f\u043c\u0438. \u0423 Corda \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0445\u043e\u0440\u043e\u0448\u0430\u044f \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u0441 \u0432\u0438\u0434\u0435\u043e-\u043b\u0435\u043a\u0446\u0438\u044f\u043c\u0438, \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u0437\u0434\u0435\u0441\u044c. \u042f \u043f\u043e\u0441\u0442\u0430\u0440\u0430\u044e\u0441\u044c \u043a\u0440\u0430\u0442\u043a\u043e \u043e\u043f\u0438\u0441\u0430\u0442\u044c \u043a\u0430\u043a \u0443\u0441\u0442\u0440\u043e\u0435\u043d Corda \u0432\u043d\u0443\u0442\u0440\u0438. \u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 Corda \u0438 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0435\u0433\u043e \u0441\u0440\u0435\u0434\u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u0431\u043b\u043e\u043a\u0447\u0435\u0439\u043d\u043e\u0432: \u0423 Corda \u043d\u0435\u0442 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u043a\u0440\u0438\u043f\u0442\u043e\u0432\u0430\u043b\u044e\u0442\u044b. 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