{"id":15700,"date":"2023-12-06T16:24:57","date_gmt":"2023-12-06T16:24:57","guid":{"rendered":"https:\/\/promoguy.nl\/vocabulary\/proof-of-work\/"},"modified":"2023-12-06T16:24:57","modified_gmt":"2023-12-06T16:24:57","slug":"proof-of-work","status":"publish","type":"entity","link":"https:\/\/promoguy.nl\/lv\/blog\/vocabulary\/proof-of-work\/","title":{"rendered":"Darba apliecin\u0101jums"},"content":{"rendered":"<p>Darba pier\u0101d\u012b\u0161anas sist\u0113ma (vai protokols, vai funkcija) ir ekonomisks pas\u0101kums, lai nov\u0113rstu pakalpojumu atteik\u0161anas uzbrukumus un citus pakalpojumu \u013caunpr\u0101t\u012bgas izmanto\u0161anas gad\u012bjumus, piem\u0113ram, surog\u0101tpasta s\u016bt\u012b\u0161anu t\u012bkl\u0101, pieprasot no pakalpojuma piepras\u012bt\u0101ja zin\u0101mu darbu, kas parasti noz\u012bm\u0113 apstr\u0101des laiku dator\u0101.  \u0160is j\u0113dziens radies, pateicoties Dworkam un Naoram. \u0160o sh\u0113mu galven\u0101 iez\u012bme ir to asimetrija: piepras\u012bt\u0101ja pus\u0113 darbam j\u0101b\u016bt m\u0113reni gr\u016btam (bet izpild\u0101mam), bet pakalpojuma sniedz\u0113ja pus\u0113 - viegli p\u0101rbaud\u0101mam. \u0160o ideju d\u0113v\u0113 ar\u012b par procesora izmaksu funkciju, klienta m\u012bklu, skait\u013co\u0161anas m\u012bklu vai procesora cenu noteik\u0161anas funkciju. T\u0101 at\u0161\u0137iras no CAPTCHA, kas paredz\u0113ta \u0101trai atrisin\u0101\u0161anai cilv\u0113kam, nevis datoram. Viena popul\u0101ra sist\u0113ma - izmantota Bitcoin ieguv\u0113 un Hashcash - izmanto da\u013c\u0113jas hash inversijas, lai pier\u0101d\u012btu, ka darbs ir veikts, k\u0101 labas gribas \u017eetonu, lai nos\u016bt\u012btu e-pastu. Piem\u0113ram, \u0161\u0101da galvene atspogu\u013co aptuveni 252 hash apr\u0113\u0137inus, lai 2038. gada 19. janv\u0101r\u012b nos\u016bt\u012btu zi\u0146u uz calvin@comics.net: X-Hashcash: 1:52:380119:calvin@comics.net:::9B760005E92F0DAE To p\u0101rbauda ar vienu apr\u0113\u0137inu, p\u0101rbaudot, vai z\u012bmoga SHA-1 hash (izlaidiet da\u013cu \"X-Hashcash: \") s\u0101kas ar 52 bin\u0101raj\u0101m null\u0113m, kas ir 13 heksadecim\u0101l\u0101s z\u012bmes null\u0113m: Vai POW sist\u0113mas patie\u0161\u0101m var atrisin\u0101t konkr\u0113tu pakalpojuma atteikuma probl\u0113mu, piem\u0113ram, surog\u0101tpasta probl\u0113mu, ir diskut\u0113jams jaut\u0101jums; sist\u0113mai ir j\u0101nodro\u0161ina, lai surog\u0101tpasta v\u0113stu\u013cu s\u016bt\u012b\u0161ana surog\u0101tpasta s\u016bt\u012bt\u0101jam neb\u016btu uzkr\u012bto\u0161i produkt\u012bva, ta\u010du tai nevajadz\u0113tu ar\u012b trauc\u0113t likum\u012bgiem lietot\u0101jiem s\u016bt\u012bt savas zi\u0146as. Darba pier\u0101d\u012b\u0161anas sist\u0113mas k\u0101 primit\u012bvu elementu izmanto citas sare\u017e\u0123\u012bt\u0101kas kriptogr\u0101fijas sist\u0113mas, piem\u0113ram, Bitcoin, kur\u0101 izmanto Hashcash l\u012bdz\u012bgu sist\u0113mu.<\/p>","protected":false},"excerpt":{"rendered":"<p>A proof-of-work (POW) system (or protocol, or function) is an economic measure to deter denial of service attacks and other service abuses such as spam on a network by requiring some work from the service requester, usually meaning processing time by a computer. The concept is due to Dwork and Naor. A key feature of [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"","ping_status":"closed","template":"","meta":{"_acf_changed":false,"wl_entities_gutenberg":"","footnotes":""},"categories":[],"wl_entity_type":[39],"class_list":["post-15700","entity","type-entity","status-publish","hentry","wl_entity_type-thing"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Proof-of-work - Promoguy Digital Marketing Agency<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"lv_LV\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Proof-of-work\" \/>\n<meta property=\"og:description\" content=\"A proof-of-work (POW) system (or protocol, or function) is an economic measure to deter denial of service attacks and other service abuses such as spam on a network by requiring some work from the service requester, usually meaning processing time by a computer. 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