[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.inma.cz\/k-tezbe-bitcoinu-se-dnes-vyuziva-miner-asic-v-tezarskych-poolech\/#Article","mainEntityOfPage":"https:\/\/www.inma.cz\/k-tezbe-bitcoinu-se-dnes-vyuziva-miner-asic-v-tezarskych-poolech\/","headline":"K t\u011b\u017eb\u011b Bitcoinu se dnes vyu\u017e\u00edv\u00e1 miner Asic v t\u011b\u017ea\u0159sk\u00fdch poolech","name":"K t\u011b\u017eb\u011b Bitcoinu se dnes vyu\u017e\u00edv\u00e1 miner Asic v t\u011b\u017ea\u0159sk\u00fdch poolech","description":"Obecn\u011b v\u0161echny virtu\u00e1ln\u00ed m\u011bny funguj\u00ed na syst\u00e9mu potvrzov\u00e1n\u00ed transakc\u00ed v tzv. bloc\u00edch. Nejsou \u0159\u00edzeny centr\u00e1ln\u011b, n\u00fdbr\u017e jejich spr\u00e1vu prov\u00e1d\u00ed t\u011b\u017ea\u0159i. Ka\u017ed\u00fd, komu se nejd\u0159\u00edve poda\u0159\u00ed vyt\u011b\u017eit seskupen\u00ed transakc\u00ed do bloku, rovn\u011b\u017e v blockchainu vytvo\u0159\u00ed dal\u0161\u00ed blok ur\u010den\u00fd k t\u011b\u017eb\u011b. Konkr\u00e9tn\u011b u Bitcoinu jde nap\u0159. o kryptografii SHA-256. V praxi to prob\u00edh\u00e1 tak, \u017ee algoritmus pracuje.","datePublished":"2018-05-26","dateModified":"2023-05-02","author":{"@type":"Person","@id":"https:\/\/www.inma.cz\/author\/#Person","name":"","url":"https:\/\/www.inma.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/40308b9402d145b1dc164f447b6506e9dadca8c8362c3ffb52df95e789c0fd10?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/40308b9402d145b1dc164f447b6506e9dadca8c8362c3ffb52df95e789c0fd10?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"inma.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.inma.cz\/wp-content\/uploads\/img_a317990_w2131_t1528788605.jpg","url":"https:\/\/www.inma.cz\/wp-content\/uploads\/img_a317990_w2131_t1528788605.jpg","height":0,"width":0},"url":"https:\/\/www.inma.cz\/k-tezbe-bitcoinu-se-dnes-vyuziva-miner-asic-v-tezarskych-poolech\/","about":["Pen\u00edze"],"wordCount":455,"articleBody":"    Obecn\u011b v\u0161echny virtu\u00e1ln\u00ed m\u011bny funguj\u00ed na syst\u00e9mu potvrzov\u00e1n\u00ed transakc\u00ed v tzv. bloc\u00edch. Nejsou \u0159\u00edzeny centr\u00e1ln\u011b, n\u00fdbr\u017e jejich spr\u00e1vu prov\u00e1d\u00ed t\u011b\u017ea\u0159i. Ka\u017ed\u00fd, komu se nejd\u0159\u00edve poda\u0159\u00ed vyt\u011b\u017eit seskupen\u00ed transakc\u00ed do bloku, rovn\u011b\u017e v blockchainu vytvo\u0159\u00ed dal\u0161\u00ed blok ur\u010den\u00fd k t\u011b\u017eb\u011b. Konkr\u00e9tn\u011b u Bitcoinu jde nap\u0159. o kryptografii SHA-256. V praxi to prob\u00edh\u00e1 tak, \u017ee algoritmus pracuje se vstupn\u00edmi daty, p\u0159ev\u00e1d\u00ed je \u0161ifrov\u00e1n\u00edm do znak\u016f a symbol\u016f a v\u0161echny texty maj\u00ed t\u00edm p\u00e1dem sv\u016fj osobit\u00fd tzv. hash. V\u00fdpo\u010detn\u00ed technika jej zvl\u00e1dne vytvo\u0159it b\u011bhem zlomku vte\u0159iny. Probl\u00e9m v\u0161ak spo\u010d\u00edv\u00e1 v rychlosti t\u011b\u017eby. Nap\u0159. Bitcoin byl nastaven tak, aby se posledn\u00ed mince vyt\u011b\u017eila a\u017e v roce 2140. Z toho d\u016fvodu je t\u0159eba korigovat rychlost t\u011b\u017eby pomoc\u00ed obt\u00ed\u017enosti, aby jeden blok byl t\u011b\u017een zhruba 10 minut. Syst\u00e9m s\u00edt\u011b tuto propustnost kontroluje pravideln\u011b a upravuje (zde jednou za 14 dn\u016f) obt\u00ed\u017enost t\u011b\u017eebn\u00edho procesu. \u00daprava obt\u00ed\u017enosti spo\u010d\u00edv\u00e1 v tzv. proof of work, k p\u016fvodn\u00ed informaci o prov\u00e1d\u011bn\u00e9 transakci se vlo\u017e\u00ed n\u00e1hodn\u00fd text, tzv. nonce. Ten tedy p\u016fvodn\u00ed transakci ponech\u00e1 nezm\u011bn\u011bnou a nonce pouze zm\u011bn\u00ed hash. T\u011b\u017ea\u0159i pak vytvo\u0159en\u00fd hash mus\u00ed vyhledat, a to neust\u00e1l\u00fdm hled\u00e1n\u00edm kombinac\u00ed. Zde tedy plat\u00ed p\u0159\u00edm\u00e1 \u00fam\u011bra, \u017ee \u010d\u00edm vy\u0161\u0161\u00ed v\u00fdpo\u010detn\u00ed v\u00fdkon stroje, t\u00edm v\u011bt\u0161\u00ed pravd\u011bpodobnost odhalen\u00ed (vypo\u010d\u00edt\u00e1n\u00ed) zad\u00e1n\u00ed. Sou\u010dasn\u00e9 t\u011b\u017eebn\u00ed RIGy zvl\u00e1daj\u00ed zpracovat i n\u011bkolik milion\u016f operac\u00ed za vte\u0159inu. Zp\u016fsob t\u011b\u017eby ovliv\u0148uj\u00ed rozd\u00edln\u00e9 algoritmy V\u0161echny t\u011b\u017eiteln\u00e9 kryptom\u011bny funguj\u00ed na stejn\u00e9m principu, pouze se li\u0161\u00ed sv\u00fdmi algoritmy. V z\u00e1sad\u011b plat\u00ed, \u017ee t\u011b\u017ea\u0159 jednotlivec dnes usp\u011bje pouze u m\u00e9n\u011b zn\u00e1m\u00e9 a roz\u0161\u00ed\u0159en\u00e9 kryptom\u011bny, kde je st\u00e1le slab\u00e1 konkurence a celkov\u00fd v\u00fdkon t\u011b\u017eby je relativn\u011b mal\u00fd. U Bitcoinu lze zaznamenat \u00fasp\u011bch pouze u velmi v\u00fdkonn\u00fdch stroj\u016f, sdru\u017een\u00fdch do t\u011b\u017ea\u0159sk\u00fdch pool\u016f. Bitcoiny se dnes tak\u00e9 t\u011b\u017e\u00ed pomoc\u00ed speci\u00e1ln\u00edch procesor\u016f ASIC miner. V roce 2018 existuje ve sv\u011bt\u011b zhruba necel\u00e9 dva tis\u00edce virtu\u00e1ln\u00edch m\u011bn. N\u011bkter\u00e9 bezv\u00fdznamn\u00e9 ji\u017e zmizely, jin\u00e9 se pr\u016fb\u011b\u017en\u011b zakl\u00e1daj\u00ed. U n\u011bkter\u00fdch m\u011bn m\u016f\u017ee doch\u00e1zet k neshod\u00e1m mezi t\u011b\u017ea\u0159i na prov\u00e1d\u011bn\u00ed procesu \u0159\u00edzen\u00ed a ty se pak rozd\u011bl\u00ed na dal\u0161\u00ed odno\u017ee, co\u017e je nap\u0159\u00edklad Bitcoin Cash nebo Litecoin.                                                                                                                                                                                                                                                                                                                                                                                          4.4\/5 - (14 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"K t\u011b\u017eb\u011b Bitcoinu se dnes vyu\u017e\u00edv\u00e1 miner Asic v t\u011b\u017ea\u0159sk\u00fdch poolech","item":"https:\/\/www.inma.cz\/k-tezbe-bitcoinu-se-dnes-vyuziva-miner-asic-v-tezarskych-poolech\/#breadcrumbitem"}]}]