{"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":"hva-er-smarte-kontrakter-hva-de-for","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/nb\/2020\/12\/09\/hva-er-smarte-kontrakter-hva-de-for\/","title":{"rendered":"Hva i all verden er smarte kontrakter? En enkel guide"},"content":{"rendered":"<p>Sannsynligvis vet du allerede hva en (tradisjonell) kontrakt er, ikke sant? La oss uansett huske det. I f\u00f8lge Merriam-Webster-ordboken er en kontrakt \u201cen bindende avtale mellom to eller flere personer eller parter, spesielt en lovlig h\u00e5ndhevbar\u201d. Vel, hva er det f\u00f8rste du kommer opp i tankene dine n\u00e5r vi sier &quot;smarte kontrakter&quot;?<\/p>\n\n\n\n<p>Ligger dokumentet p\u00e5 et nettbrett, kanskje? Er det n\u00e5 en robot? En AI bak en datamaskin? Det er bare ... koblet til Internett? Ikke akkurat. Hvis du sjekker andre kilder (som den p\u00e5litelige Wikipedia), vil de si noe s\u00e5nt som <strong>en smart kontrakt er en \u201cdigital protokoll\u201d eller \u201cdataprogram\u201d som utf\u00f8rer sine forh\u00e5ndsbestemte forhold automatisk<\/strong> n\u00e5r disse er oppfylt.<\/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>Bildet er tatt av Gerd Altmann fra Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Hyggelig, eh\u2026? Og hva i all verden betyr det? Vi kan forklare det p\u00e5 denne m\u00e5ten: en smart kontrakt er ikke noe du kan ber\u00f8re eller til og med se ordentlig. For det meste vil du bare se resultatene, omtrent som med ledningene p\u00e5 TV-en. Forskjellen er at denne gangen er resultatene helt digitale fordi det er en digital avtale basert p\u00e5 <a href=\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">en blockchain<\/a>, skrevet med beregningskode for \u00e5 h\u00e5ndheve de tidligere betingelsene som partene ble enige om. Du kan tenke p\u00e5 det som en automatisk kontrakt eller garanti, som ikke trenger papir, advokat, notarius eller mellommann generelt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>S\u00e5 ... hvordan smarte kontrakter fungerer for din gjennomsnittlige fyr?<\/strong><\/h2>\n\n\n\n<p>Det korte svaret er med digitale apper eller verkt\u00f8y. Hvis du ikke vet hvordan du skal skrive kode (som utviklere eller dataingeni\u00f8rer), har du ikke ansvaret for \u00e5 lage dem, s\u00e5 ikke bekymre deg. Overlat den oppgaven til ekspertene. <strong>For \u00e5 bruke dem, trenger du bare \u00e5 velge en smart-kontraktbasert app (vanligvis desentraliserte apper) eller plattform<\/strong> og g\u00e5 med den p\u00e5 enheten din (mobil eller stasjon\u00e6r).<\/p>\n\n\n\n<p>Vi kan imidlertid snakke litt om den interne funksjonen til en smart kontrakt. La oss f\u00f8rst sjekke et bilde for \u00e5 vise deg hvordan de ser ut inni. Spoiler: det er litt kjedelig. Det er bare en haug med kode.<\/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>Smart kontrakteksempel. Kilde: Ethereum.org<\/figcaption><\/figure><\/div>\n\n\n\n<p>Vi kan ogs\u00e5 sjekke dataene deres p\u00e5 en <a href=\"https:\/\/etherscan.io\/address\/0xf4985070ce32b6b1994329df787d1acc9a2dd9e2\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">blockchain explorer<\/a> (en tilgjengelig webside), hvis den er offentlig, selvf\u00f8lgelig. Bankene utvikler sine egne applikasjoner med smarte kontrakter, s\u00e5 de er ikke offentlige. Men vi kan for eksempel sjekke en gjennomsnittlig kontrakt p\u00e5 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>Eksempel p\u00e5 offentlige data i en smart kontrakt. Kilde: Etherscan<\/figcaption><\/figure><\/div>\n\n\n\n<p>Vi oppdager her en viktig ting med smarte kontrakter. <strong>Foruten kode, er de laget av transaksjoner og en monet\u00e6r saldo. <\/strong>Dette betyr imidlertid ikke at den eneste bruken for dem m\u00e5 v\u00e6re \u00f8konomisk: transaksjonene kan ogs\u00e5 representere informasjon. N\u00e5r det gjelder balansen, er sannheten at desentraliserte smarte kontrakter krever noen gebyrer for \u00e5 fungere (vanligvis i form av kryptovalutaer), bestemt til <a href=\"https:\/\/alfacash.blog\/2020\/08\/25\/cryptocurrency-mining-dummies-how-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">gruvearbeidere eller validatorer<\/a> av blockchain.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Prosessen er som ...<\/strong><\/h2>\n\n\n\n<p>Inne i Ethereum er for eksempel en kontrakt rettferdig <a href=\"https:\/\/ethereum.org\/en\/developers\/docs\/smart-contracts\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">en annen type adresse<\/a> (lommebok \/ konto), med saldo og transaksjoner. Men er en slags kollektiv adresse, designet for \u00e5 fungere som en bro mellom to eller flere parter, med forh\u00e5ndsinnstilte forhold. Derfor styres ikke denne adressen bare av en bruker, men av sine egne tidligere avtalte vilk\u00e5r, h\u00e5ndhevet av hele Ethereum-nettverket.<\/p>\n\n\n\n<p><strong>Utl\u00f8seren for at denne adressen kan gj\u00f8re noe (som automatisk \u00e5 kj\u00f8pe penger) er en hendelse som forventes av partene<\/strong>. Det kan v\u00e6re et salg, en betalingsdato, en registrering av noe, et nytt produkt p\u00e5 nettet, <a href=\"https:\/\/alfacash.blog\/2020\/08\/22\/bitcoin-to-the-moon-5-predictions-for-2021-and-beyond\/\" target=\"_blank\" rel=\"noreferrer noopener\">en prisendring<\/a>, en avstemning, eller til og med sportsresultatene.<\/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>Bildet er tatt av kinkate fra Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Kontrakten n\u00e5r frem til informasjonen som er gitt om den av de involverte partene eller av et \u201corakel\u201d (en programvare som konsulterer eksterne kilder), og handler i konsekvens av de forh\u00e5ndsinnstilte forholdene.<\/p>\n\n\n\n<p><strong>For \u00e5 oppsummere er dette prosessen:<\/strong><\/p>\n\n\n\n<p>1. Partene forhandler om vilk\u00e5rene i kontrakten (eller selskapet \/ utvikleren gj\u00f8r dem offentlige for alle som \u00f8nsker \u00e5 bli med).<br>2. Utvikleren bygger protokollen inne i en valgt 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.), ved \u00e5 bruke de avtalte vilk\u00e5rene.<br>3. Kontrakten og dens vilk\u00e5r er representert inne i en adresse til en slik blockchain.<br>4. Arrangementet skjer.<br>5. Kontrakten gj\u00f8r transaksjonene i henhold til resultatet av nevnte hendelse.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><br><strong>Alice og Bob brukte smarte kontrakter<\/strong><\/h2>\n\n\n\n<p>Selvf\u00f8lgelig trenger vi et klassisk eksempel med Alice og Bob. La oss si at Alice kommer til \u00e5 satse $500 med Bob om <a href=\"https:\/\/alfacash.blog\/2020\/11\/28\/bitcoin-price-will-reach-60k-mid-2021-new-study\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bitcoin pris<\/a> til neste helg. Bob tror det vil v\u00e6re opp til X dollar, mens Alice tror det vil v\u00e6re ned X dollar.<\/p>\n\n\n\n<p>S\u00e5 de bestemmer seg for \u00e5 bygge en smart kontrakt (appellerer til en utvikler eller en plattform-som-en-tjeneste) og setter sine betingelser. <strong>Midlene ($500) vil bli deponert i kryptovaluta til kontrakten,<\/strong> og hvis prisen p\u00e5 Bitcoin g\u00e5r opp X for neste helg, vil kontrakten automatisk overf\u00f8re midlene til Bob. Hvis prisen p\u00e5 <a href=\"https:\/\/alfacash.blog\/2020\/11\/25\/how-to-start-bitcoin-cryptos-5-steps\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bitcoin<\/a> g\u00e5r ned X, vil midlene g\u00e5 til Alice adresse. Og det er det.<\/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>N\u00e5, en annen situasjon, denne gangen med noe Internet of Things (IoT). Alice vil leie huset sitt til Bob, og hun har fordelen av en installert smartl\u00e5s, styrt digitalt for \u00e5 \u00e5pne og lukke d\u00f8ren. S\u00e5 de bygger en smart kontrakt og setter disse vilk\u00e5rene: Bob vil betale X dollar i krypto m\u00e5nedlig.<\/p>\n\n\n\n<p>Hvis han ikke gj\u00f8r det i to m\u00e5neder, <strong>kontrakten vil beordre den smarte l\u00e5sen for \u00e5 holde d\u00f8ren (og tilgangen til huset) stengt.<\/strong> P\u00e5 denne m\u00e5ten forsikrer Alice om \u00e5 motta den avtalt figuren p\u00e5 beh\u00f8rig vis, og Bob trenger ikke \u00e5 samle flere dokumenter eller rekvisita til Alice.<\/p>\n\n\n\n<p>Og vel, det er tross alt en type kontrakt. Fantasien er grensen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Noen popul\u00e6re bruksomr\u00e5der for smarte kontrakter<\/strong><\/h2>\n\n\n\n<p>Det er allerede hundrevis av smartkontraktsbaserte apper, med mange kategorier og funksjoner. B\u00f8rs, pengespill, spill, investering, eiendom, helsetjenester, markedsplasser, meningsm\u00e5linger ... de jobber alle med smarte kontrakter.<\/p>\n\n\n\n<p>Kanskje noen av disse Dappene (som ikke i seg selv er smarte kontrakter, men som jobber med dem), kan ringe en bjelle til deg. CryptoKitties (samleobjekter), Uniswap (exchange), Aragon (governance), District0x (markedsplasser og samfunn), Augur (prediksjonsmarked), Synthetix (for syntetiske eiendeler), Axie Infinity (spill), Grid + (energi) og Actifit (helse) er bare eksempler. <strong>I f\u00f8lge <a href=\"https:\/\/www.stateofthedapps.com\/dapps\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Dappens tilstand<\/a>, det er over 2500 av dem.<\/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>Bildet er tatt av Edar fra Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Og du vet hva som fungerer med disse kontraktene? Hele <a href=\"https:\/\/alfacash.blog\/2020\/09\/09\/how-to-make-thousands-dollars-defi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Desentralisert \u00f8konomi (DeFi)<\/a> \u00f8kosystem, en boom i disse dager. Vi kan finne mange investeringsverkt\u00f8y (for <a href=\"https:\/\/alfacash.blog\/2020\/10\/07\/meet-best-performing-bold-platforms-yield-farming\/\" target=\"_blank\" rel=\"noreferrer noopener\">avkastningsbruk<\/a>, for det meste), l\u00e5n, forsikring, sparing og mer. Plattformer som Yearn Finance, Compound, UMA, Maker, Curve og <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> tilh\u00f8rer denne kategorien.<\/p>\n\n\n\n<p>Utover dette, banker og selskaper som 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 og OneSmart City tester enten smarte kontrakter for \u00e5 forbedre tjenestene eller bruke dem allerede i forskjellige applikasjoner. S\u00e5 som du ser, er vi allerede fulle av disse kontraktene.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p class=\"has-text-align-center\"><em>Vil du handle BTC, ETH og andre tokens? Du kan gj\u00f8re det<\/em>\u00a0<em>trygt\u00a0<a href=\"https:\/\/www.alfa.cash\/buy\/bitcoin\" target=\"_blank\" rel=\"noreferrer noopener\">p\u00e5 Alfacash<\/a>! Og ikke glem at vi snakker om dette og mange andre ting p\u00e5 v\u00e5re sosiale medier.<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>Smarte kontrakter h\u00f8res ut som en vanskelig betegnelse, spesielt n\u00e5r de pr\u00f8ver \u00e5 forklare det. La oss sjekke en enkel beskrivelse og bruksomr\u00e5der.<\/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\/nb\/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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