Blockchain er dreifst\u00fdr\u00f0, dreif\u00f0 b\u00f3khaldst\u00e6kni sem gerir \u00f6rugga og gagns\u00e6ja stafr\u00e6nar f\u00e6rslur<\/a> \u00e1n \u00feess a\u00f0 \u00feurfa millili\u00f0i. \u00deetta er byltingarkennd t\u00e6kni sem hefur m\u00f6guleika \u00e1 a\u00f0 umbreyta \u00fev\u00ed hvernig vi\u00f0 st\u00fdrum vi\u00f0skiptum, skiptum uppl\u00fdsingum og eiga samskipti s\u00edn \u00e1 milli.<\/p>\n Blockchain-t\u00e6knin var fyrst kynnt \u00e1ri\u00f0 2008 sem undirst\u00f6\u00f0ut\u00e6kni fyrir Bitcoin, fyrstu dreif\u00f0u stafr\u00e6nu gjaldmi\u00f0la heimsins. S\u00ed\u00f0an \u00fe\u00e1 hefur h\u00fan \u00fer\u00f3ast og or\u00f0i\u00f0 \u00f6flugt t\u00e6ki fyrir fj\u00f6lbreytt notkunarsvi\u00f0 handan stafr\u00e6nna gjaldmi\u00f0la.<\/p>\n \u00cd kjarna s\u00ednum er blockchain stafr\u00e6nt reikningsb\u00f3k sem skr\u00e1ir vi\u00f0skipti \u00e1 \u00f6ruggan og \u00f3spillanlegan h\u00e1tt. \u00dea\u00f0 er ke\u00f0ja af blokkum, \u00fear sem hver blokk inniheldur safn vi\u00f0skipta sem eru sta\u00f0fest og b\u00e6tt vi\u00f0 ke\u00f0juna me\u00f0 samkomulagskerfi. \u00deegar blokk hefur veri\u00f0 b\u00e6tt vi\u00f0 ke\u00f0juna er ekki h\u00e6gt a\u00f0 breyta henni n\u00e9 ey\u00f0a henni, sem gerir blockchain a\u00f0 \u00f3umbreytanlegu skjali yfir \u00f6ll vi\u00f0skipti.<\/p>\n \u00d3mi\u00f0st\u00fdr\u00f0 e\u00f0li blockchain-t\u00e6kninnar \u00fe\u00fd\u00f0ir a\u00f0 h\u00fan er ekki undir stj\u00f3rn neins eins a\u00f0ila, heldur nets notenda sem sameiginlega sta\u00f0festa og vi\u00f0halda heilleika reikningsb\u00f3karinnar. \u00deetta gerir \u00fea\u00f0 n\u00e1nast \u00f3m\u00f6gulegt fyrir einn notanda a\u00f0 falsa e\u00f0a spilla henni. g\u00f6gn<\/a> geymt \u00e1 blockchaininu.<\/p>\n Einn helsti kostur blockchain-t\u00e6kni er h\u00e6fileikinn til a\u00f0 stu\u00f0la a\u00f0 trausti og gagns\u00e6i \u00ed stafr\u00e6num vi\u00f0skiptum. Me\u00f0 \u00fev\u00ed a\u00f0 \u00fatr\u00fdma millili\u00f0um og bj\u00f3\u00f0a upp \u00e1 \u00f6rugga og gagns\u00e6ja skr\u00e1 getur blockchain-t\u00e6kni dregi\u00f0 \u00far \u00e1h\u00e6ttu \u00e1 svikum, spillingu og \u00f6\u00f0rum misgj\u00f6r\u00f0um \u00ed fj\u00f6lm\u00f6rgum greinum.<\/p>\n Til d\u00e6mis er h\u00e6gt a\u00f0 nota blockchain-t\u00e6kni til a\u00f0 b\u00faa til \u00f6rugg og gagns\u00e6 kerfi fyrir stj\u00f3rnun birg\u00f0ake\u00f0ju, \u00fear sem hvert skref \u00ed birg\u00f0ake\u00f0junni er skr\u00e1\u00f0 \u00e1 blockchain, fr\u00e1 uppruna hr\u00e1efna til hins endanlega vara<\/a>. \u00deetta getur hj\u00e1lpa\u00f0 til vi\u00f0 a\u00f0 koma \u00ed veg fyrir falsanir, draga \u00far \u00fargangi og tryggja a\u00f0 v\u00f6rur s\u00e9u si\u00f0fer\u00f0ilega fengnar og framleiddar.<\/p>\n \u00d6nnur m\u00f6guleg notkun blockchain-t\u00e6kni er \u00e1 svi\u00f0i au\u00f0kennisstj\u00f3rnunar. Me\u00f0 \u00fev\u00ed a\u00f0 b\u00faa til \u00f6ruggt og \u00f3spillanlegt stafr\u00e6nt au\u00f0kenniskerfi \u00e1 blockchain geta einstaklingar haft meiri stj\u00f3rn \u00e1 pers\u00f3nuuppl\u00fdsingum s\u00ednum og vernda\u00f0 sig gegn au\u00f0kennis\u00fej\u00f3fna\u00f0i og \u00f6\u00f0rum tegundum svika.<\/p>\n Almennt s\u00e9\u00f0 t\u00e1knar blockchain-t\u00e6kni verulega breytingu \u00e1 \u00fev\u00ed hvernig vi\u00f0 hugsum um stafr\u00e6nar f\u00e6rslur og gagnastj\u00f3rnun. Dreif\u00f0a, gagns\u00e6ja og \u00f6rugga e\u00f0li \u00feess hefur m\u00f6guleika \u00e1 a\u00f0 umbreyta fj\u00f6lm\u00f6rgum atvinnugreinum, fr\u00e1 fj\u00e1rm\u00e1l<\/a> og heilbrig\u00f0is\u00fej\u00f3nusta<\/a> til frambo\u00f0ske\u00f0justj\u00f3rnunar og au\u00f0kenningarsko\u00f0unar.<\/p>\n \u00deegar t\u00e6knin heldur \u00e1fram a\u00f0 \u00fer\u00f3ast og \u00feroskast er l\u00edklegt a\u00f0 vi\u00f0 munum sj\u00e1 enn fleiri n\u00fdst\u00e1rlegar og umbreytandi notkunarm\u00f6guleika blockchain-t\u00e6kninnar \u00e1 komandi \u00e1rum.<\/p>","protected":false},"excerpt":{"rendered":" Uppg\u00f6tva\u00f0u hvernig blockchain-t\u00e6kni er a\u00f0 umbreyta framt\u00ed\u00f0 stafr\u00e6nna vi\u00f0skipta, me\u00f0 \u00fev\u00ed a\u00f0 bj\u00f3\u00f0a upp \u00e1 \u00f6rugg og gagns\u00e6 vi\u00f0skipti \u00e1n millili\u00f0a.<\/p>","protected":false},"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-6540","dictionary","type-dictionary","status-publish","hentry"],"acf":[],"yoast_head":"\n