{"id":30282,"date":"2019-10-31T21:34:39","date_gmt":"2019-10-31T18:34:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/podnozhka-dlya-mozga-platforma-raspredelennogo-reestra-hedera-hashgraph\/"},"modified":"2019-10-31T21:34:39","modified_gmt":"2019-10-31T18:34:39","slug":"podnozhka-dlya-mozga-platforma-raspredelennogo-reestra-hedera-hashgraph","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/podnozhka-dlya-mozga-platforma-raspredelennogo-reestra-hedera-hashgraph","title":{"rendered":"Podporn\u00e1 platforma pre mozog: platforma distribuovan\u00e9ho registra Hedera Hashgraph","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Podporn\u00e1
\nKonsenzn\u00fd algoritmus, asynchr\u00f3nna tolerancia vo\u010di nevysvetlite\u013en\u00fdm chyb\u00e1m, orientovan\u00fd acyklick\u00fd graf, distribuovan\u00fd register \u2014 o tom, \u010do sp\u00e1ja tieto pojmy, a ako si nevyvrtn\u00fa\u0165 mozog \u2014 v \u010dl\u00e1nku o Hedera Hashgraph.
\n<\/a><\/noindex>
\nSpolo\u010dnos\u0165 Swirlds Inc. predstavuje:
\n<\/b>Platforma distribuovan\u00e9ho registra Hedera Hashgraph.<\/p>\n

V hlavn\u00fdch \u00faloh\u00e1ch:
\n<\/b>Lemon Baird, matematik, tvorca algoritmu Hashgraph, spoluzakladate\u013e, technick\u00fd riadite\u013e a hlavn\u00fd vedeck\u00fd pracovn\u00edk Swirlds Inc.;
\nMance Harmon, matematik, spoluzakladate\u013e a gener\u00e1lny riadite\u013e Swirlds Inc.;
\nTom Troubridge, prezident Hedera Hashgraph, evangelista technol\u00f3gie Hashgraph.<\/p>\n

Na projekte sa podie\u013eaj\u00fa:
\n<\/b>Finan\u010dn\u00fd holding Nomura Holding;
\nTelekomunika\u010dn\u00e1 spolo\u010dnos\u0165 Deutsche Telekom;
\nMedzin\u00e1rodn\u00e1 pr\u00e1vna firma DLA Piper;
\nBraz\u00edlsky maloobchodn\u00edk Magazine Luiza;
\n\u0160vaj\u010diarska korpor\u00e1cia Swisscom AG.<\/p>\n

Nerozumel som, pre\u010do sa v\u0161etky inform\u00e1cie o Hedera Hashgraph pod\u00e1vaj\u00fa tak zapleteno, \u010di je to v\u00fdsledok vedomej politiky v\u00fdvoj\u00e1rov, alebo sa to stalo n\u00e1hodou. Ale v ka\u017edom pr\u00edpade nap\u00edsa\u0165 s\u00favisl\u00fd text o Hedera Hashgraph sa uk\u00e1zalo by\u0165 ve\u013emi \u0165a\u017ek\u00e9. Ka\u017ed\u00fd raz, ke\u010f sa zdalo, \u017ee u\u017e to ch\u00e1pem, takmer okam\u017eite sa op\u00e4\u0165 uk\u00e1zalo, \u017ee je to hlbok\u00e9 omyl. Nakoniec, zd\u00e1 sa, vzniklo nie\u010do zmyslupln\u00e9, ale aj tak \u2014 \u010d\u00edtajte opatrne, nebezpe\u010denstvo vyvrtnutia mozgu nikam nezmizlo.<\/p>\n

\u010cas\u0165 1. \u00daloha byzantsk\u00fdch gener\u00e1lov a klebety
\n<\/b>V tejto pr\u00edbehu sa zaklad\u00e1 na tzv. \u201e\u00dalohe byzantsk\u00fdch gener\u00e1lov\u201c (Byzantine Fault Tolerance, BTF) \u2014 my\u0161lienkov\u00fd experiment, ktor\u00fd m\u00e1 ilustrova\u0165 probl\u00e9m synchroniz\u00e1cie stavu syst\u00e9mov v pr\u00edpade, \u017ee komunik\u00e1cie s\u00fa pova\u017eovan\u00e9 za spo\u013eahliv\u00e9, a uzly nie. V\u0161etci, ktor\u00ed maj\u00fa z\u00e1ujem, si m\u00f4\u017eu podrobnej\u0161ie presk\u00fama\u0165 ot\u00e1zku tu alebo tu. <\/p>\n

Algoritmy platformy Hedera Hashgraph s\u00fa postaven\u00e9 na b\u00e1ze \u0161peci\u00e1lneho pr\u00edpadu Byzantine Fault Tolerance \u2014 asynchr\u00f3nnej \u00falohe byzantsk\u00fdch gener\u00e1lov, alebo aBFT. V roku 2016 prv\u00fdkr\u00e1t navrhol rie\u0161enie pre t\u00fato \u00falohu matematik Lemon Baird a, netv\u00e1riac sa ako hlup\u00e1k, si ho okam\u017eite nechal patentova\u0165. <\/p>\n

Platforma Hedera Hashgraph sa vyzna\u010duje spolo\u010dn\u00fdm vyu\u017e\u00edvan\u00edm a synchroniz\u00e1ciou digit\u00e1lnych d\u00e1t pod\u013ea konsenzu\u00e1lneho algoritmu, fyzickou decentraliz\u00e1ciou uzlov na uchov\u00e1vanie d\u00e1t a absenciou jedn\u00e9ho centra kontroly. Protokol Hashgraph (v tomto pr\u00edpade je Hedera ekosyst\u00e9m a Hashgraph protokol) v\u0161ak nepatr\u00ed medzi blockchainy, ale predstavuje orientovan\u00fd graf bez sekven\u010dn\u00fdch cyklov, ktor\u00fd sa sklad\u00e1 z paraleln\u00fdch sekvenci\u00ed za\u010d\u00ednaj\u00facich v jednom uzle a r\u00f4znymi cestami dosahuj\u00facich kone\u010dn\u00fd uzol. <\/p>\n

Zjednodu\u0161ene povedan\u00e9, ak by sa klasick\u00fd blockchain vizu\u00e1lne dal zn\u00e1zorni\u0165 ako pr\u00edsna n\u00e1slednos\u0165 \u010dl\u00e1nkov (\u010do je jeho z\u00e1kladn\u00e1 vlastnos\u0165), Hashgraph vizu\u00e1lne pripom\u00edna bonsai s obrovsk\u00fdm mno\u017estvom rozvetven\u00ed. Ke\u010f\u017ee po\u010det s\u00fabe\u017en\u00fdch cyklov je prakticky neobmedzen\u00fd, Hashgraph umo\u017e\u0148uje s\u00fa\u010dasne vykon\u00e1va\u0165 obrovsk\u00e9 mno\u017estvo transakci\u00ed (v\u00fdvoj\u00e1ri hovoria o 250 tis\u00edcoch za sekundu, \u010do presahuje p\u00e4\u0165n\u00e1sobok mo\u017enost\u00ed aj Visa, nehovoriac o sieti bitcoinu), pri\u010dom poplatok za transakciu zvy\u010dajne ch\u00fdba.<\/p>\n

\u010eal\u0161\u00edm z\u00e1sadn\u00fdm rozdielom Hashgraphu od klasick\u00e9ho blockchainu je subprotokol gossip (protokol klebiet). V r\u00e1mci distribuovanej datab\u00e1zy ka\u017ed\u00e1 transakcia neznamen\u00e1 prenos v\u0161etk\u00fdch \u00fadajov, ale iba inform\u00e1cie o inform\u00e1ci\u00e1ch (Gossip about Gossip). O transakcii uzol informuje dve in\u00e9 n\u00e1hodn\u00e9 uzly, z ktor\u00fdch ka\u017ed\u00fd n\u00e1sledne sprostredkov\u00e1va spr\u00e1vy dvom \u010fal\u0161\u00edm, a\u017e k\u00fdm po\u010det informovan\u00fdch uzlov nebude dostato\u010dn\u00fd na dosiahnutie konsenzu, pri\u010dom k tomu doch\u00e1dza, ke\u010f je informovan\u00e1 v\u00e4\u010d\u0161ina uzlov (a pr\u00e1ve v\u010faka tomu sa dosahuje deklarovan\u00fd po\u010det transakci\u00ed na jednotku \u010dasu). <\/p>\n

\u010cas\u0165 2. Zabijak blockchainu alebo nie
\n<\/b>V s\u00fa\u010dasnosti sa Hedera Hashgraph vyv\u00edja. Konkr\u00e9tne prebieha testovanie vlastnej kryptomeny s podporou mikrotransakci\u00ed, distribuovan\u00e9ho sie\u0165ov\u00e9ho \u00falo\u017eiska s\u00faborov a scen\u00e1rov, ktor\u00e9 umo\u017e\u0148uj\u00fa vytv\u00e1ra\u0165 smart kontrakty na z\u00e1klade jazykov ekosyst\u00e9mu Ethereum. <\/p>\n

N\u00e1zory na tento projekt sa l\u00ed\u0161ia vz\u00e1cnou polariz\u00e1ciou. Niektor\u00e9 zdroje jednoducho naz\u00fdvaj\u00fa Hashgraph \"zabijakom blockchainu\", in\u00e9 spravodlivo uv\u00e1dzaj\u00fa, \u017ee ch\u00fdbaj\u00fa pr\u00edklady funguj\u00facich decentralizovan\u00fdch aplik\u00e1ci\u00ed v prostred\u00ed Hedera, in\u00fdch znepokojuje to, \u017ee z\u00e1klad platformy je patentovan\u00fd a jej v\u00fdvoj je pod kontrolou dozorn\u00e9ho v\u00fdboru, do ktor\u00e9ho patr\u00ed z\u00e1stupcovia cel\u00e9ho radu spolo\u010dnost\u00ed zo zoznamu Fortune 500 (aj ke\u010f posledn\u00e9, pr\u00e1ve hovor\u00ed o tom, \u017ee projekt m\u00e1 re\u00e1lny potenci\u00e1l a ur\u010dite nie je podvodom). Mimochodom, pred \u010dasom bol projekt vy\u010dlenen\u00fd do samostatnej spolo\u010dnosti Hedera Hashgraph, \u010do tie\u017e nazna\u010duje jeho prioritu pre v\u00fdvoj\u00e1rov.<\/p>\n

V\u00fdvoj\u00e1ri bez ve\u013ek\u00e9ho rozruchu najprv na uzavretej predaji tokenov vyzbierali 18 mili\u00f3nov dol\u00e1rov na prev\u00e1dzkov\u00fa potrebu a o nie\u010do nesk\u00f4r e\u0161te 100. \u017diadne konkr\u00e9tne inform\u00e1cie o ICO sa tie\u017e neuv\u00e1dzaj\u00fa, a v\u00f4bec \u2014 roadmap Hedera Hashgraph sa vyzna\u010duje vz\u00e1cnou nejasnos\u0165ou, \u010do v\u0161ak nebr\u00e1ni spolo\u010dnosti vykon\u00e1va\u0165 ve\u013emi akt\u00edvne \u010dinnosti zameran\u00e9 na populariz\u00e1ciu tohto konsenzu\u00e1lneho algoritmu, spolo\u010dnos\u0165 akt\u00edvne pracuje na vytv\u00e1ran\u00ed r\u00f4znych profesion\u00e1lnych komun\u00edt \u2014 od program\u00e1torov po pr\u00e1vnikov, z\u00e1stupcovia projektu u\u017e usporiadali viac ako 80 stretnut\u00ed so zainteresovan\u00fdmi ob\u010danmi po celom svete, dokonca sa dostali aj do Ruska \u2014 6. marca sa v Moskve konalo stretnutie s prezidentom Hedera Hashgraph Tomom Troubridgeom, ktor\u00e9, ako sa hovor\u00ed, pril\u00e1kalo nem\u00e1lo z\u00e1stupcov na\u0161ich IT a finan\u010dn\u00fdch kruhov.<\/p>\n

P\u00e1n Troubridge povedal, \u017ee v najbli\u017e\u0161ej dobe sa o\u010dak\u00e1va minim\u00e1lne 40 decentralizovan\u00fdch aplik\u00e1ci\u00ed na b\u00e1ze Hedera Hashgraph, a vlastne je ich v procese v\u00fdvoja viac ne\u017e 100, tak\u017ee v doh\u013eadnej bud\u00facnosti bude ma\u0165 ka\u017ed\u00fd \u0161ancu vidie\u0165 na\u017eivo, ako toto zariadenie funguje.<\/p>\n

Spolu
\n<\/b>Vo v\u0161eobecnosti mo\u017eno s istotou poveda\u0165 nieko\u013eko vec\u00ed. Po prv\u00e9, projekt nie je trivi\u00e1lny a u\u017e vyvolal v\u00e1\u017eny z\u00e1ujem predstavite\u013eov ve\u013ek\u00fdch korpor\u00e1ci\u00ed. Po druh\u00e9, pre laika je otvorene \u0165a\u017eko pochopite\u013en\u00fd, \u010do, pod\u013ea v\u0161etk\u00e9ho, vysvet\u013euje nedostatok \u00fadajov o \u0148om vo verejnom pr\u00edstupe (a e\u0161te, pod\u013ea videa s p\u00e1nom Limonom, aj to, \u017ee tento m\u00fadry p\u00e1n nie je v\u00f4bec re\u010dn\u00edk). Po tretie, je m\u00e1lo pravdepodobn\u00e9, \u017ee sa stane \"zabijakom bitcoinu\" alebo nie\u010d\u00edm tak\u00fdm patetick\u00fdm, ale jeho vyhl\u00e1sen\u00e9 v\u00fdhody vyzeraj\u00fa dos\u0165 presved\u010divo, aby sa na projekt ve\u013emi pozorne sledovalo.<\/p>\n

Navy\u0161e, koluj\u00fa f\u00e1my, \u017ee organiz\u00e1tori \u010doskoro pl\u00e1nuj\u00fa pril\u00e1ka\u0165 \u010fal\u0161\u00ed tran\u0161 invest\u00edci\u00ed, je mo\u017en\u00e9, \u017ee m\u00e1 zmysel sa na \u0148om z\u00fa\u010dastni\u0165.
\n
Zdroj: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0410\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u043a\u043e\u043d\u0441\u0435\u043d\u0441\u0443\u0441\u0430, \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u0430\u044f \u0442\u043e\u043b\u0435\u0440\u0430\u043d\u0442\u043d\u043e\u0441\u0442\u044c \u043a \u043d\u0435\u043e\u0431\u044a\u044f\u0441\u043d\u0438\u043c\u044b\u043c \u043e\u0448\u0438\u0431\u043a\u0430\u043c, \u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0430\u0446\u0438\u043a\u043b\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0433\u0440\u0430\u0444, \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u0440\u0435\u0435\u0441\u0442\u0440 \u2014 \u043e \u0442\u043e\u043c, \u0447\u0442\u043e \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u044f\u0435\u0442 \u044d\u0442\u0438 \u043f\u043e\u043d\u044f\u0442\u0438\u044f, \u0438 \u043a\u0430\u043a \u043d\u0435 \u0432\u044b\u0432\u0438\u0445\u043d\u0443\u0442\u044c \u0441\u0435\u0431\u0435 \u043c\u043e\u0437\u0433 \u2014 \u0432 \u0441\u0442\u0430\u0442\u044c\u0435 \u043e Hedera Hashgraph. \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Swirlds Inc. \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442: \u041f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0440\u0435\u0435\u0441\u0442\u0440\u0430 Hedera Hashgraph. \u0412 \u0433\u043b\u0430\u0432\u043d\u044b\u0445 \u0440\u043e\u043b\u044f\u0445: \u041b\u0438\u043c\u043e\u043d \u0411\u0430\u0438\u0440\u0434, \u043c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u043a, \u0441\u043e\u0437\u0434\u0430\u0442\u0435\u043b\u044c \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 Hashgraph, \u0441\u043e\u0443\u0447\u0440\u0435\u0434\u0438\u0442\u0435\u043b\u044c, \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440 \u0438 \u0433\u043b\u0430\u0432\u043d\u044b\u0439 \u043d\u0430\u0443\u0447\u043d\u044b\u0439 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-30282","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Podporuj\u00faca platforma distribu\u010dn\u00e9ho registra Hedera Hashgraph | ProHoster","description":"Konzensusov\u00fd 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