{"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":"wat-zijn-slimme-contracten-waar-ze-voor","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/nl\/2020\/12\/09\/wat-zijn-slimme-contracten-waar-ze-voor\/","title":{"rendered":"Wat zijn in hemelsnaam slimme contracten? Een gemakkelijke gids"},"content":{"rendered":"<p>Waarschijnlijk weet je al wat een (traditioneel) contract is, toch? Laten we het in ieder geval onthouden. Volgens het Merriam-Webster-woordenboek is een contract &quot;een bindende overeenkomst tussen twee of meer personen of partijen, met name \u00e9\u00e9n juridisch afdwingbare&quot;. Welnu, wat is het eerste dat in u opkomt als we zeggen &quot;slimme contracten&quot;?<\/p>\n\n\n\n<p>Staat het document misschien op een tablet? Is het nu een robot? Een AI, achter een computer? Het is gewoon... verbonden met internet? Niet precies. Als je andere bronnen bekijkt (zoals de oude betrouwbare Wikipedia), zullen ze iets zeggen als: <strong>een slim contract is een &quot;digitaal protocol&quot; of &quot;computerprogramma&quot; dat de vooraf bepaalde voorwaarden automatisch uitvoert<\/strong> wanneer deze zijn vervuld.<\/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>Afbeelding van Gerd Altmann via Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Leuk, h\u00e8...? En wat betekent dat in hemelsnaam? Nou, we kunnen het zo uitleggen: een slim contract is niet iets dat je kunt aanraken of zelfs maar goed kunt zien. Meestal zie je alleen de resultaten, net zoals met de draden in je tv. Het verschil is dat die resultaten deze keer volledig digitaal zijn, omdat een digitale overeenkomst is gebaseerd op: <a href=\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">een blockchain<\/a>, geschreven met rekencode om de eerdere voorwaarden die door de partijen zijn overeengekomen af te dwingen. U kunt het zien als een automatisch contract of een garantie, waarvoor geen papier, advocaat, notaris of tussenpersonen in het algemeen nodig zijn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Dus... hoe werken slimme contracten voor de gemiddelde man?<\/strong><\/h2>\n\n\n\n<p>Het korte antwoord is met digitale apps of tools. Als u niet weet hoe u code moet schrijven (zoals ontwikkelaars of computertechnici), bent u niet verantwoordelijk voor het maken ervan, dus maakt u zich geen zorgen. Laat die taak over aan de experts. <strong>Om ze te gebruiken, hoeft u alleen maar een op smart contract gebaseerde app (meestal gedecentraliseerde apps) of platform te kiezen<\/strong> en gebruik het op uw apparaat (mobiel of desktop).<\/p>\n\n\n\n<p>We kunnen echter een beetje praten over de interne werking van een slim contract. Laten we eerst een afbeelding bekijken om te laten zien hoe ze er van binnen uitzien. Spoiler: het is een beetje saai. Het is gewoon een hoop code.<\/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>Voorbeeld slim contract. Bron: Ethereum.org<\/figcaption><\/figure><\/div>\n\n\n\n<p>We kunnen hun gegevens ook controleren op een <a href=\"https:\/\/etherscan.io\/address\/0xf4985070ce32b6b1994329df787d1acc9a2dd9e2\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">blockchain-verkenner<\/a> (een toegankelijke webpagina), als deze natuurlijk openbaar is. De banken ontwikkelen hun eigen applicaties met slimme contracten, dus die zijn niet openbaar. Maar we kunnen bijvoorbeeld een gemiddeld contract op Ethereum controleren.<\/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>Voorbeeld van openbare gegevens in een slim contract. Bron: Etherscan<\/figcaption><\/figure><\/div>\n\n\n\n<p>We ontdekken hier een belangrijk ding over slimme contracten. <strong>Naast code bestaan ze uit transacties en een geldsaldo. <\/strong>Dit betekent echter niet dat het enige echte gebruik voor hen financieel moet zijn: de transacties kunnen ook alleen informatie vertegenwoordigen. Wat de balans betreft, de waarheid is dat gedecentraliseerde slimme contracten enige vergoedingen vereisen om te werken (meestal in de vorm van cryptocurrencies), bestemd voor de <a href=\"https:\/\/alfacash.blog\/2020\/08\/25\/cryptocurrency-mining-dummies-how-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">mijnwerkers of validators<\/a> van de blockchain.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Het proces is als\u2026<\/strong><\/h2>\n\n\n\n<p>Binnen Ethereum is een contract bijvoorbeeld gewoon <a href=\"https:\/\/ethereum.org\/en\/developers\/docs\/smart-contracts\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">een ander soort adres<\/a> (portemonnee\/rekening), met saldo en transacties. Maar is een soort collectief adres, ontworpen om te werken als een brug tussen twee of meer partijen, met vooraf ingestelde voorwaarden. Daarom wordt dit adres niet door slechts \u00e9\u00e9n gebruiker beheerd, maar door zijn eigen eerder overeengekomen voorwaarden, afgedwongen door het hele Ethereum-netwerk.<\/p>\n\n\n\n<p><strong>De trigger voor dit adres om iets te doen (zoals automatisch geld afhandelen) is een gebeurtenis die door de partijen wordt verwacht<\/strong>. Het kan een verkoop zijn, een betalingsdatum, een vermelding van iets, een nieuw product online, <a href=\"https:\/\/alfacash.blog\/2020\/08\/22\/bitcoin-to-the-moon-5-predictions-for-2021-and-beyond\/\" target=\"_blank\" rel=\"noreferrer noopener\">een prijswijziging<\/a>, een peiling of zelfs de sportresultaten.<\/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>Afbeelding van kinkate via Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Het contract reikt naar de informatie die erover wordt verstrekt door de betrokken partijen of door een &quot;orakel&quot; (een software die externe bronnen raadpleegt), en handelt als gevolg daarvan, volgens de vooraf ingestelde voorwaarden.<\/p>\n\n\n\n<p><strong>Samengevat is dit het proces:<\/strong><\/p>\n\n\n\n<p>1. De partijen onderhandelen over de voorwaarden van het contract (of het bedrijf\/de ontwikkelaar maakt ze openbaar voor iedereen die wil aansluiten).<br>2. De ontwikkelaar bouwt het protocol binnen een geselecteerde blockchain (<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, etc.), volgens de overeengekomen voorwaarden.<br>3. Het contract en de voorwaarden ervan worden weergegeven in een adres van een dergelijke blockchain.<br>4. De gebeurtenis vindt plaats.<br>5. Het contract maakt de transacties volgens het resultaat van genoemde gebeurtenis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><br><strong>Alice en Bob gebruikten slimme contracten<\/strong><\/h2>\n\n\n\n<p>Natuurlijk hebben we een klassiek voorbeeld nodig met Alice en Bob. Laten we zeggen dat Alice $500 gaat wedden met Bob over de <a href=\"https:\/\/alfacash.blog\/2020\/11\/28\/bitcoin-price-will-reach-60k-mid-2021-new-study\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bitcoin prijs<\/a> voor het volgende weekeinde. Bob denkt dat het tot X dollar zal zijn, terwijl Alice denkt dat het tot X dollar zal dalen.<\/p>\n\n\n\n<p>Dus besluiten ze een slim contract op te bouwen (aansprekend voor een ontwikkelaar of een platform-as-a-service) en stellen hun voorwaarden vast. <strong>Het geld ($500) wordt in cryptocurrency gestort op het contract,<\/strong> en als de prijs van Bitcoin het komende weekend X stijgt, zal het contract het geld automatisch overmaken aan Bob. Als de prijs van <a href=\"https:\/\/alfacash.blog\/2020\/11\/25\/how-to-start-bitcoin-cryptos-5-steps\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bitcoin<\/a> X daalt, gaat het geld naar het adres van Alice. En dat is het.<\/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-stier-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>Nu, een andere situatie, deze keer met Internet of Things (IoT). Alice wil haar huis verhuren aan Bob, en ze heeft het voordeel van een ge\u00efnstalleerd slim slot, digitaal bediend om de deur te openen en te sluiten. Dus bouwen ze een slim contract en stellen deze voorwaarden: Bob betaalt maandelijks X dollar in crypto.<\/p>\n\n\n\n<p>Als hij dat twee maanden niet doet, <strong>het contract zal het slimme slot bestellen om de deur (en de toegang tot het huis) gesloten te houden.<\/strong> Op deze manier zorgt Alice ervoor dat ze het afgesproken bedrag naar behoren ontvangt en hoeft Bob geen documenten of benodigdheden meer voor Alice te verzamelen.<\/p>\n\n\n\n<p>En tja, het is tenslotte een soort contract. De verbeelding is de limiet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Enkele populaire toepassingen voor slimme contracten<\/strong><\/h2>\n\n\n\n<p>Er zijn al honderden op smart contract gebaseerde apps, met veel categorie\u00ebn en functies. Uitwisselingen, gokken, games, investeringen, onroerend goed, gezondheidszorg, marktplaatsen, peilingen\u2026 ze werken allemaal met slimme contracten.<\/p>\n\n\n\n<p>Misschien kunnen sommige van deze Dapps (die niet per se slimme contracten zijn, maar ermee werken) een belletje doen rinkelen. CryptoKitties (verzamelobjecten), Uniswap (uitwisseling), Aragon (governance), District0x (marktplaatsen en gemeenschappen), Augur (voorspellingsmarkt), Synthetix (voor synthetische activa), Axie Infinity (games), Grid+ (energie) en Actifit (gezondheid) zijn slechts voorbeelden. <strong>Volgens <a href=\"https:\/\/www.stateofthedapps.com\/dapps\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">De staat van de Dapps<\/a>, er zijn er meer dan 2500.<\/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>Afbeelding van Edar via Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>En weet je wat nog meer werkt met deze contracten? Het geheel <a href=\"https:\/\/alfacash.blog\/2020\/09\/09\/how-to-make-thousands-dollars-defi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Gedecentraliseerde Financi\u00ebn (DeFi)<\/a> ecosysteem, een hausse deze dagen. We kunnen er veel investeringstools vinden (voor <a href=\"https:\/\/alfacash.blog\/2020\/10\/07\/meet-best-performing-bold-platforms-yield-farming\/\" target=\"_blank\" rel=\"noreferrer noopener\">opbrengst landbouw<\/a>, meestal), leningen, verzekeringen, sparen en meer. Platformen zoals Yearn Finance, Compound, UMA, Maker, Curve en <a href=\"https:\/\/alfacash.blog\/2020\/11\/22\/defi-protocol-pickle-finance-suffered-19m-hack-loses-value\/\" target=\"_blank\" rel=\"noreferrer noopener\">Augurk Financi\u00ebn<\/a> behoren tot deze categorie.<\/p>\n\n\n\n<p>Daarnaast kunnen banken en bedrijven zoals 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 en OneSmart City testen slimme contracten om hun diensten te verbeteren of gebruiken ze al in verschillende toepassingen. Dus, zoals je kunt zien, zitten we al vol met deze contracten.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p class=\"has-text-align-center\"><em>Wil je BTC, ETH en andere tokens verhandelen? Je kunt het<\/em>\u00a0<em>veilig\u00a0<a href=\"https:\/\/www.alfa.cash\/buy\/bitcoin\" target=\"_blank\" rel=\"noreferrer noopener\">op Alfacash<\/a>! En vergeet niet dat we het hier en nog veel meer over hebben op onze sociale 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\">Telegram<\/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>Slimme contracten klinken als een lastige term, vooral als ze het proberen uit te leggen. Laten we een eenvoudige beschrijving en gebruik bekijken.<\/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\/nl\/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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