{"id":4844,"date":"2020-12-09T23:33:52","date_gmt":"2020-12-09T20:33:52","guid":{"rendered":"https:\/\/alfacash.blog\/?p=4844"},"modified":"2024-02-19T21:52:42","modified_gmt":"2024-02-19T18:52:42","slug":"cosa-sono-i-contratti-intelligenti-a-cosa-servono","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/it\/2020\/12\/09\/cosa-sono-i-contratti-intelligenti-a-cosa-servono\/","title":{"rendered":"Cosa diavolo sono i contratti intelligenti? Una guida facile"},"content":{"rendered":"<p>Probabilmente sai gi\u00e0 cos&#039;\u00e8 un contratto (tradizionale), giusto? Ricordiamolo, comunque. Secondo il dizionario Merriam-Webster, un contratto \u00e8 &quot;un accordo vincolante tra due o pi\u00f9 persone o parti, in particolare uno legalmente vincolante&quot;. Ebbene, qual \u00e8 la prima cosa che ti viene in mente quando diciamo &quot;contratti intelligenti&quot;?<\/p>\n\n\n\n<p>Il documento \u00e8 su un tablet, forse? Adesso \u00e8 un robot? Un&#039;intelligenza artificiale, dietro un computer? \u00c8 solo ... connesso a Internet? Non esattamente. Se controlli altre fonti (come la vecchia Wikipedia affidabile), diranno qualcosa di simile <strong>uno smart contract \u00e8 un &quot;protocollo digitale&quot; o &quot;programma per computer&quot; che esegue automaticamente le sue condizioni predeterminate<\/strong> quando queste sono soddisfatte.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"482\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-1024x482.jpg\" alt=\"\" class=\"wp-image-4850\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-1024x482.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-300x141.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-150x71.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-18x8.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-270x127.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-770x363.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-1078x508.jpg 1078w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-900x424.jpg 900w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-370x174.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-554x261.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-306x144.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-260x122.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280-87x41.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/shaking-hands-2965055_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Foto di Gerd Altmann da Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Bello, eh ...? E cosa diavolo significa? Bene, possiamo spiegarlo in questo modo: uno smart contract non \u00e8 qualcosa che puoi toccare o anche vedere correttamente. Per lo pi\u00f9, vedrai solo i risultati, proprio come con i cavi all&#039;interno della tua TV. La differenza \u00e8 che questa volta quei risultati sono completamente digitali perch\u00e9 \u00e8 un accordo digitale basato su <a href=\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">una blockchain<\/a>, scritto con codice computazionale per far rispettare le precedenti condizioni concordate dalle parti. Puoi pensarlo come un contratto o una garanzia automatica, che non necessita di carta, avvocato, notaio o intermediari in generale.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Quindi ... come funzionano i contratti intelligenti per il tuo ragazzo medio?<\/strong><\/h2>\n\n\n\n<p>La risposta breve \u00e8 con app o strumenti digitali. Se non sai come scrivere codice (come sviluppatori o ingegneri informatici), non sarai responsabile della loro creazione, quindi non preoccuparti. Lascia questo compito agli esperti. <strong>Per usarli, devi solo scegliere un&#039;app basata su contratto intelligente (di solito app decentralizzate) o una piattaforma<\/strong> e utilizzalo sul tuo dispositivo (mobile o desktop).<\/p>\n\n\n\n<p>Tuttavia, possiamo parlare un po &#039;del funzionamento interno di uno smart contract. Prima di tutto, controlliamo un&#039;immagine per mostrarti come appaiono all&#039;interno. Spoiler: \u00e8 un po &#039;noioso. \u00c8 solo un mucchio di codice.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"331\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-1024x331.jpg\" alt=\"\" class=\"wp-image-4851\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-1024x331.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-300x97.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-150x49.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-18x6.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-270x87.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-770x249.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-1170x378.jpg 1170w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-900x291.jpg 900w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-370x120.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-554x179.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-306x99.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-260x84.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_-87x28.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contract-example.-Source-Ethereum.org_.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Esempio di contratto intelligente. Fonte: Ethereum.org<\/figcaption><\/figure><\/div>\n\n\n\n<p>Possiamo anche controllare i loro dati su un file <a href=\"https:\/\/etherscan.io\/address\/0xf4985070ce32b6b1994329df787d1acc9a2dd9e2\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">blockchain explorer<\/a> (una pagina web accessibile), se \u00e8 pubblica, ovviamente. Le banche stanno sviluppando le proprie applicazioni con contratti intelligenti, quindi quelli non sono pubblici. Ma possiamo controllare, ad esempio, un contratto medio su Ethereum.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"450\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-1024x450.jpg\" alt=\"\" class=\"wp-image-4852\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-1024x450.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-300x132.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-150x66.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-18x8.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-270x119.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-770x338.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-1157x508.jpg 1157w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-900x395.jpg 900w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-370x163.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-554x243.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-306x134.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-260x114.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan-87x38.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Example-of-public-data-in-a-smart-contract.-Source-Etherscan.jpg 1168w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Esempio di dati pubblici in uno smart contract. Fonte: Etherscan<\/figcaption><\/figure><\/div>\n\n\n\n<p>Scopriamo qui una cosa importante sui contratti intelligenti. <strong>Oltre al codice, sono fatti di transazioni e un saldo monetario. <\/strong>Tuttavia, questo non significa che l&#039;unico uso per loro debba essere finanziario: le transazioni possono anche rappresentare solo informazioni. Per quanto riguarda il saldo, la verit\u00e0 \u00e8 che gli smart contract decentralizzati richiedono alcune commissioni per funzionare (solitamente sotto forma di criptovalute), destinate al <a href=\"https:\/\/alfacash.blog\/2020\/08\/25\/cryptocurrency-mining-dummies-how-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">minatori o validatori<\/a> della blockchain.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Il processo \u00e8 come ...<\/strong><\/h2>\n\n\n\n<p>All&#039;interno di Ethereum, ad esempio, un contratto \u00e8 solo <a href=\"https:\/\/ethereum.org\/en\/developers\/docs\/smart-contracts\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">un altro tipo di indirizzo<\/a> (portafoglio \/ conto), con saldo e transazioni. Ma \u00e8 una sorta di indirizzo collettivo, pensato per fare da ponte tra due o pi\u00f9 soggetti, a condizioni prestabilite. Pertanto, questo indirizzo non \u00e8 controllato da un solo utente, ma dai suoi termini concordati in precedenza, applicati dall&#039;intera rete Ethereum.<\/p>\n\n\n\n<p><strong>Il motivo per cui questo indirizzo fa qualcosa (come la transazione automatica di denaro) \u00e8 un evento atteso dalle parti<\/strong>. Potrebbe essere una vendita, una data di pagamento, una registrazione di qualcosa, un nuovo prodotto online, <a href=\"https:\/\/alfacash.blog\/2020\/08\/22\/bitcoin-to-the-moon-5-predictions-for-2021-and-beyond\/\" target=\"_blank\" rel=\"noreferrer noopener\">una variazione di prezzo<\/a>, un sondaggio o anche i risultati sportivi.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-1024x575.jpg\" alt=\"\" class=\"wp-image-4853\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-1024x575.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-300x169.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-150x84.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-18x10.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-270x152.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-770x433.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-904x508.jpg 904w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-900x506.jpg 900w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-370x208.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-554x311.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-306x172.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-260x146.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280-87x49.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/marathon-2346948_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Foto di kinkate da Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Il contratto perviene alle informazioni fornite in merito dalle parti coinvolte o da un \u201coracle\u201d (un software che consulta fonti esterne), e agisce di conseguenza, seguendo le sue condizioni prefissate.<\/p>\n\n\n\n<p><strong>Per riassumere, questo \u00e8 il processo:<\/strong><\/p>\n\n\n\n<p>1. Le parti negoziano i termini del contratto (o l&#039;azienda \/ sviluppatore li rende pubblici per tutti coloro che desiderano aderire).<br>2. Lo sviluppatore costruisce il protocollo all&#039;interno di una blockchain selezionata (<a href=\"https:\/\/alfacash.blog\/2020\/11\/14\/ethereum-2-new-features-prices-more-ethereum-chains\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ethereum<\/a>, EOS, Tron, Cardano, RSK, ecc.), Utilizzando i termini concordati.<br>3. Il contratto e i suoi termini sono rappresentati all&#039;interno di un indirizzo di tale blockchain.<br>4. L&#039;evento accade.<br>5. Il contratto effettua le transazioni in base al risultato di detto evento.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><br><strong>Alice e Bob usavano contratti intelligenti<\/strong><\/h2>\n\n\n\n<p>Ovviamente, abbiamo bisogno di un classico esempio con Alice e Bob. Diciamo che Alice scommetter\u00e0 $500 con Bob sul <a href=\"https:\/\/alfacash.blog\/2020\/11\/28\/bitcoin-price-will-reach-60k-mid-2021-new-study\/\" target=\"_blank\" rel=\"noreferrer noopener\">Prezzo Bitcoin<\/a> per il prossimo fine settimana. Bob pensa che spetter\u00e0 a X dollari, mentre Alice pensa che sar\u00e0 in ribasso di X dollari.<\/p>\n\n\n\n<p>Quindi, decidono di costruire un contratto intelligente (facendo appello a uno sviluppatore o una piattaforma come servizio) e stabiliscono le loro condizioni. <strong>I fondi ($500) verranno depositati in criptovaluta al contratto,<\/strong> e se il prezzo di Bitcoin aumenta di X per il prossimo fine settimana, il contratto trasferir\u00e0 automaticamente i fondi a Bob. Se il prezzo di <a href=\"https:\/\/alfacash.blog\/2020\/11\/25\/how-to-start-bitcoin-cryptos-5-steps\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bitcoin<\/a> sta scendendo X, i fondi andranno all&#039;indirizzo di Alice. E questo \u00e8 tutto.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-1024x682.jpg\" alt=\"Bitcoin-15000-bull-run\" class=\"wp-image-4624\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-1024x682.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-scaled-150x100.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-scaled-260x173.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-scaled-87x58.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-300x200.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-scaled-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-scaled.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-770x513.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-762x508.jpg 762w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-773x515.jpg 773w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-370x247.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-554x369.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-306x204.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bitcoin-2643188_1280-368x245.jpg 368w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Ora, un&#039;altra situazione, questa volta che coinvolge alcuni Internet of Things (IoT). Alice vuole affittare la sua casa a Bob e ha il vantaggio di una serratura intelligente installata, controllata digitalmente per aprire e chiudere la porta. Quindi, creano un contratto intelligente e stabiliscono questi termini: Bob pagher\u00e0 mensilmente X dollari in criptovaluta.<\/p>\n\n\n\n<p>Se non lo fa per due mesi, <strong>il contratto ordiner\u00e0 la serratura intelligente per mantenere chiusa la porta (e l&#039;accesso alla casa).<\/strong> In questo modo, Alice si assicura di ricevere debitamente la cifra concordata e Bob non ha bisogno di raccogliere ulteriori documenti o requisiti per Alice.<\/p>\n\n\n\n<p>E beh, dopotutto \u00e8 una specie di contratto. L&#039;immaginazione \u00e8 il limite.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Alcuni usi popolari per i contratti intelligenti<\/strong><\/h2>\n\n\n\n<p>Esistono gi\u00e0 centinaia di app basate su contratti intelligenti, con molte categorie e funzioni. Scambi, giochi d&#039;azzardo, giochi, investimenti, propriet\u00e0 immobiliari, assistenza sanitaria, mercati, sondaggi ... funzionano tutti con contratti intelligenti.<\/p>\n\n\n\n<p>Forse alcuni di questi Dapp (che di per s\u00e9 non sono contratti intelligenti, ma lavorano con loro), possono suonare un campanello per te. CryptoKitties (oggetti da collezione), Uniswap (scambio), Aragon (governance), District0x (mercati e comunit\u00e0), Augur (mercato di previsione), Synthetix (per risorse sintetiche), Axie Infinity (giochi), Grid + (energia) e Actifit (salute) sono solo esempi. <strong>Secondo <a href=\"https:\/\/www.stateofthedapps.com\/dapps\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Lo stato delle Dapps<\/a>, ce ne sono oltre 2.500.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"730\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-1024x730.jpg\" alt=\"\" class=\"wp-image-4854\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-1024x730.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-300x214.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-150x107.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-253x180.jpg 253w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-723x515.jpg 723w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-713x508.jpg 713w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-370x264.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-554x395.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-306x218.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-344x245.jpg 344w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-260x185.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280-87x62.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/touch-screen-1023966_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Foto di Edar da Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>E sai cos&#039;altro funziona con questi contratti? Il tutto <a href=\"https:\/\/alfacash.blog\/2020\/09\/09\/how-to-make-thousands-dollars-defi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Finanza decentralizzata (DeFi)<\/a> ecosistema, un boom in questi giorni. Possiamo trovare molti strumenti di investimento (per <a href=\"https:\/\/alfacash.blog\/2020\/10\/07\/meet-best-performing-bold-platforms-yield-farming\/\" target=\"_blank\" rel=\"noreferrer noopener\">resa agricola<\/a>, principalmente), prestiti, assicurazioni, risparmi e altro ancora. Piattaforme come Yearn Finance, Compound, UMA, Maker, Curve e <a href=\"https:\/\/alfacash.blog\/2020\/11\/22\/defi-protocol-pickle-finance-suffered-19m-hack-loses-value\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pickle Finance<\/a> appartengono a questa categoria.<\/p>\n\n\n\n<p>Oltre a questo, banche e societ\u00e0 come BBVA, Bankia, Sabadell, CaixaBank, IBM, Microsoft, Google, Ernst &amp; Young, S7 Airlines, <a href=\"https:\/\/alfacash.blog\/2020\/12\/01\/givingtuesday-here-again-lot-cryptocurrencies\/\" target=\"_blank\" rel=\"noreferrer noopener\">BitGive<\/a>, Money on Chain e OneSmart City stanno testando contratti intelligenti per migliorare i loro servizi o li stanno gi\u00e0 utilizzando in diverse applicazioni. Quindi, come puoi vedere, siamo gi\u00e0 pieni di questi contratti.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p class=\"has-text-align-center\"><em>Vuoi scambiare BTC, ETH e altri token? Puoi farlo<\/em>\u00a0<em>in modo sicuro\u00a0<a href=\"https:\/\/www.alfa.cash\/buy\/bitcoin\" target=\"_blank\" rel=\"noreferrer noopener\">su Alfacash<\/a>! E non dimenticare che stiamo parlando di questo e di molte altre cose sui nostri social media.<br><br><\/em><a href=\"https:\/\/twitter.com\/alfacash_crypto\" target=\"_blank\" rel=\"noreferrer noopener\">Twitter<\/a>\u00a0*\u00a0<a href=\"https:\/\/t.me\/AlfacashCommunity\" target=\"_blank\" rel=\"noreferrer noopener\">Telegramma<\/a>\u00a0*\u00a0<a href=\"https:\/\/www.instagram.com\/alfacashstore\" target=\"_blank\" rel=\"noreferrer noopener\">Instagram<\/a> * <a href=\"https:\/\/www.youtube.com\/channel\/UCOl4fdRHj8AseQ5b6z9udaw\" target=\"_blank\" rel=\"noreferrer noopener\">Youtube<\/a>\u00a0*<a href=\"https:\/\/www.facebook.com\/alfacashstore\" target=\"_blank\" rel=\"noreferrer noopener\">Facebook<\/a>\u00a0\u00a0*\u00a0<a href=\"https:\/\/vk.com\/alfacashcrypto\" target=\"_blank\" rel=\"noreferrer noopener\">Vkontakte<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>I contratti intelligenti sembrano un termine complicato, soprattutto quando stanno cercando di spiegarlo. Controlliamo una semplice descrizione e usi.<\/p>","protected":false},"author":5,"featured_media":4848,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[48],"tags":[86,61,44,84,107,199],"class_list":{"0":"post-4844","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-learn","8":"tag-blockchain","9":"tag-cryptocurrencies","10":"tag-decentralization","11":"tag-defi","12":"tag-ethereum","13":"tag-smart-contracts"},"featured_image_src":"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/12\/Smart-contracts-Guide-Alfacash.png","author_info":{"display_name":"Isabel P\u00e9rez","author_link":"https:\/\/alfacash.blog\/it\/author\/isabel\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v25.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What on earth are smart contracts? 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