{"id":6922,"date":"2021-05-06T00:00:00","date_gmt":"2021-05-05T23:00:00","guid":{"rendered":"https:\/\/instrid.sk\/uncategorized\/blockchain\/"},"modified":"2021-05-06T00:00:00","modified_gmt":"2021-05-05T23:00:00","slug":"blockchain","status":"publish","type":"post","link":"https:\/\/instrid.sk\/en\/archiv\/blockchain\/","title":{"rendered":"\u010co je to blockchain?"},"content":{"rendered":"

Kryptomeny so sebou prin\u00e1\u0161aj\u00fa ve\u013ea nezn\u00e1mych pojmov a modern\u00fdch technol\u00f3gi\u00ed. Blockchain je alfou a omegou obchodovania s kryptomenami, ale aj tak t\u00fato technol\u00f3giu nedok\u00e1\u017eu mnoh\u00ed \u013eudia pochopi\u0165. O \u010do teda ide? <\/span><\/p>\n

Z\u00e1kladn\u00e1 defin\u00edcia<\/b><\/h2>\n

Blockchain je v podstate digitalizovan\u00e1 decentralizovan\u00e1 <\/span>verejn\u00e1 kniha transakc\u00ed<\/b>. Zjednodu\u0161ene si m\u00f4\u017eete blockchain predstavi\u0165 ako trval\u00fd zdie\u013ean\u00fd z\u00e1znamn\u00edk, ktor\u00fd je tie\u017e zn\u00e1my ako digit\u00e1lna kniha. Ide o<\/span> datab\u00e1zu<\/b>, ktor\u00e1 sleduje transakcie a vytv\u00e1ra zhodu o platnosti \u00fadajov. Ka\u017ed\u00e1 nov\u00e1 transakcia sa automaticky st\u00e1va novou polo\u017ekou v tejto knihe z\u00e1znamov.\u00a0<\/span><\/p>\n

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Kedysi mali tradi\u010dn\u00e9 datab\u00e1zy jeden hlavn\u00fd protokol transakci\u00ed. Je ve\u013emi jednoduch\u00e9 \u00fadaje duplikova\u0165 alebo sfal\u0161ova\u0165 a tak si ka\u017ed\u00e1 transakcia vy\u017eaduje neust\u00e1le <\/span>aktualiz\u00e1cie d\u00f4veryhodn\u00fdch str\u00e1n<\/b>. Tento \u00fakon mus\u00ed by\u0165 zalo\u017een\u00fd na pravidelnosti aktualiz\u00e1ci\u00ed.\u00a0<\/span><\/p>\n

Blockchain zni\u017euje potrebu centr\u00e1lneho vedenia z\u00e1znamov. Nako\u013eko je \u00fa\u010dtovn\u00e1 kniha zverejnen\u00e1, v\u0161etci z\u00fa\u010dastnen\u00ed maj\u00fa <\/span>jednoduch\u00fd pr\u00edstup<\/b>. Ide o transparentnos\u0165, ktor\u00e1 sl\u00fa\u017ei k zv\u00fd\u0161eniu bezpe\u010dnosti, zr\u00fdchleniu procesu overovania a zn\u00ed\u017eeniu potreby funkci\u00ed back-office.<\/span><\/p>\n Blockchain je verejnou knihou transakci\u00ed (zdroj obr\u00e1zku: canva.com)\n

Bezpe\u010dnos\u0165 blockchainu <\/b><\/h2>\n

Ochrana \u00fadajov a bezpe\u010dnos\u0165 je v technol\u00f3gi\u00ed blockchain ve\u013emi d\u00f4le\u017eit\u00e1. Ka\u017ed\u00e1 transakcia si vy\u017eaduje bezpe\u010dnostn\u00e9 opatrenie na ochranu toto\u017enosti zmluvn\u00fdch str\u00e1n. Pre ochranu a zabezpe\u010denie transakci\u00ed s\u00fa potrebn\u00e9 <\/span>dva k\u013e\u00fa\u010de<\/b>. Ide o s\u00fakromn\u00fd a verejn\u00fd k\u013e\u00fa\u010d, pri\u010dom <\/span>verejn\u00fd<\/b> je v protokole zdie\u013ean\u00fd natrvalo. Zvy\u010dajne sa pou\u017e\u00edva najm\u00e4 na podp\u00edsanie alebo \u0161ifrovanie spr\u00e1vy. <\/span>S\u00fakromn\u00fd<\/b> k\u013e\u00fa\u010d poznaj\u00fa len majitelia a zn\u00e1my je tie\u017e ako PIN k\u00f3d. Ten sa vyu\u017e\u00edva na de\u0161ifrovanie transakcie. Kombin\u00e1ciou t\u00fdchto dvoch k\u013e\u00fa\u010dov sa vytv\u00e1ra digit\u00e1lny podpis.\u00a0<\/span><\/p>\n

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Fungovanie k\u013e\u00fa\u010dov v\u00e1m vysvetl\u00edme na jednoduchej situ\u00e1ci\u00ed. V pr\u00edpade, \u017ee vyu\u017eijete svoj verejn\u00fd k\u013e\u00fa\u010d, m\u00f4\u017eete prija\u0165 kryptomeny. Tie sa n\u00e1sledne uzamkn\u00fa v digit\u00e1lnom trezore, ktor\u00fd sa tie\u017e naz\u00fdva <\/span>blok<\/b>. Odomkn\u00fa\u0165 ho m\u00f4\u017eete iba pomocou s\u00fakromn\u00e9ho k\u013e\u00fa\u010da.<\/span><\/p>\n

A ako teda dosiahneme blockchain? Ak chronologicky spo\u010d\u00edtate v\u0161etky tieto digit\u00e1lne bloky spolu so v\u0161etk\u00fdmi pr\u00edslu\u0161n\u00fdmi transakciami vytvor\u00edte takzvan\u00fd blockchain. Okrem toho zais\u0165uje, \u017ee ktoko\u013evek, kto taktie\u017e blockchain pou\u017e\u00edva, si m\u00f4\u017ee overi\u0165 z\u00e1znam transakcie v sieti<\/span> peer-to-peer<\/b>, a nie len v centr\u00e1lnom org\u00e1ne.<\/span><\/p>\n Technol\u00f3gia blockchain vyu\u017e\u00edva pre ochranu a bezpe\u010dnos\u0165 dva k\u013e\u00fa\u010de (zdroj obr\u00e1zku: canva.com)\n

Ak\u00e9 s\u00fa v\u00fdhody blockchainu? <\/b><\/h2>\n

Technol\u00f3gia Blockchain je d\u00f4le\u017eit\u00e1 najm\u00e4 kv\u00f4li nespo\u010detn\u00fdm v\u00fdhod\u00e1m. Jednou z najd\u00f4le\u017eitej\u0161\u00edch je <\/span>dostupnos\u0165<\/b>. T\u00e1 umo\u017e\u0148uje sledovanie a overenie transakci\u00ed cel\u00fd de\u0148, sedem dn\u00ed v t\u00fd\u017edni a 365 dn\u00ed v roku.\u00a0<\/span><\/p>\n

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\u010eal\u0161ou v\u00fdhodou blockchainu je jeho <\/span>bezpe\u010dnos\u0165<\/b>. Od protistr\u00e1n nevy\u017eaduje spracovanie tre\u0165ou stranou a tak s\u00fa pou\u017e\u00edvatelia menej vystaven\u00fd probl\u00e9mom so zabezpe\u010den\u00edm osobn\u00fdch \u00fadajov. Aj napriek tomu, \u017ee blockchain nie je odoln\u00fd vo\u010di hackerom, nem\u00f4\u017eu z\u00edska\u0165 kontrolu nad kryptomenou a jej zodpovedaj\u00facim blockchainom. Tento fakt zabezpe\u010duje najm\u00e4 decentralizovan\u00e1 povaha blockchainu. Hackeri sa tak m\u00f4\u017eu nab\u00fara\u0165 len na burzy zodpovedn\u00e9 za n\u00e1kup a predaj kryptomien.\u00a0<\/span><\/p>\n

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Obrovskou v\u00fdhodou blockchainu je rie\u0161enie niektor\u00fdch bankov\u00fdch nedostatkov v s\u00fa\u010dasnom syst\u00e9me. Pri prevode pe\u0148az\u00ed sa eliminuje zd\u013ahav\u00fd proces a blockchain umo\u017e\u0148uje jednoducho spracova\u0165 platby bez tradi\u010dn\u00e9ho sprostredkovate\u013ea. Vyu\u017eitie blockchainu teda <\/span>\u0161etr\u00ed \u010das<\/b> a najm\u00e4 <\/span>n\u00e1klady<\/b>. V bank\u00e1ch toti\u017e v\u00e4\u010d\u0161inou funguje mechanizmus, ktor\u00fd si \u010das\u0165 preveden\u00fdch pe\u0148az\u00ed vezme.\u00a0<\/span><\/p>\n

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\u010eal\u0161ou v\u00fdhodou je vylep\u0161ovanie obchodn\u00fdch procesov novej gener\u00e1cie, ktor\u00e9 radik\u00e1lne zni\u017euj\u00fa n\u00e1klady na d\u00f4veru. Z tohto d\u00f4vodu potom m\u00f4\u017ee blockchain pon\u00faknu\u0165 v\u00fdrazne vy\u0161\u0161ie v\u00fdnosy za ka\u017ed\u00fd investovan\u00fd dol\u00e1r.\u00a0<\/span><\/p>\n

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Mnoh\u00e9 finan\u010dn\u00e9 in\u0161tit\u00facie sk\u00famaj\u00fa \u010fal\u0161ie v\u00fdhody vyu\u017eitia blockchainu. Sna\u017eia sa tie\u017e zisti\u0165, ako by mohli pomocou technol\u00f3gie blockchain prekona\u0165 v\u0161etky kroky od z\u00fa\u010dtovania cez vyrovnanie a\u017e po poistenie. V\u00fdsledky t\u00fdchto zisten\u00ed zatia\u013e verejnosti nie s\u00fa zn\u00e1me.\u00a0<\/span><\/p>","protected":false},"excerpt":{"rendered":"

Kryptomeny so sebou prin\u00e1\u0161aj\u00fa ve\u013ea nezn\u00e1mych pojmov a modern\u00fdch technol\u00f3gi\u00ed. Blockchain je alfou a omegou obchodovania s kryptomenami, ale aj tak t\u00fato technol\u00f3giu nedok\u00e1\u017eu mnoh\u00ed<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-6922","post","type-post","status-publish","format-standard","hentry","category-archiv","two-columns"],"_links":{"self":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/6922","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/comments?post=6922"}],"version-history":[{"count":0,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/6922\/revisions"}],"wp:attachment":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/media?parent=6922"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/categories?post=6922"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/tags?post=6922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}