{"id":3985,"date":"2020-08-30T04:28:18","date_gmt":"2020-08-30T01:28:18","guid":{"rendered":"https:\/\/alfacash.blog\/?p=3985"},"modified":"2024-02-19T21:53:20","modified_gmt":"2024-02-19T18:53:20","slug":"figuriny-co-je-blockchain-jak-to-funguje","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/cs\/2020\/08\/30\/figuriny-co-je-blockchain-jak-to-funguje\/","title":{"rendered":"Pro figur\u00edny: co je blockchain a jak to funguje?"},"content":{"rendered":"

Blockchain a dal\u0161\u00ed blockchain! To je v sou\u010dasn\u00e9 dob\u011b b\u011b\u017en\u00fd pojem, ve firemn\u00edch sf\u00e9r\u00e1ch t\u00e9m\u011b\u0159 m\u00f3da. Ka\u017ed\u00fd chce n\u011bco s blockchainem, i kdy\u017e p\u0159esn\u011b nev\u00ed, co je to \u201eblockchain\u201c. N\u011bco o kryptom\u011bn\u00e1ch, \u017ee? N\u011bco jako nov\u00fd super-techy-thingamajig, \u017ee ...?<\/p>\n\n\n\n

Ne tak \u00fapln\u011b, p\u0159\u00edteli. M\u016f\u017eeme tedy za\u010d\u00edt \u0159\u00edkat, co NEN\u00cd blockchain a k \u010demu NEN\u00cd:<\/p>\n\n\n\n

* Blockchain nen\u00ed kryptom\u011bna.
* Blockchain nen\u00ed investi\u010dn\u00ed platforma.
* Blockchain nen\u00ed v\u011bt\u0161\u00ed open-source platforma.
* Blockchain nemus\u00ed b\u00fdt distribuovan\u00fd syst\u00e9m.
* Blockchain nemus\u00ed b\u00fdt a decentralizovan\u00fd<\/em> Syst\u00e9m.
* Blockchain nen\u00ed kouzeln\u00fd.
* Blockchain nedok\u00e1\u017ee vy\u0159e\u0161it v\u0161echny va\u0161e probl\u00e9my.
* Blockchain nemus\u00ed nijak zv\u00fd\u0161it va\u0161e v\u00fdd\u011blky.
 <\/strong><\/p>\n\n\n\n

V\u0161e jasn\u00e9? Pak m\u016f\u017eeme za\u010d\u00edt u\u010dit se<\/a> co vlastn\u011b \u201eblockchain\u201c je a jak\u00fd je jeho \u00fa\u010del ve vesm\u00edru.<\/p>\n\n\n\n

Blockchain je\u2026<\/strong><\/h2>\n\n\n\n

Tato v\u011bc nen\u00ed nic jin\u00e9ho ne\u017e \u00fa\u010detn\u00ed kniha v digit\u00e1ln\u011b \u0161ifrovan\u00e9 verzi.<\/strong> Zn\u00ed nudn\u011b? Up\u0159\u00edmn\u011b \u0159e\u010deno, je to trochu nudn\u00e9. Kde je tam kouzlo? Pro\u010d jsou v\u0161ichni tak nad\u0161en\u00ed? A pro\u010d tato v\u011bc m\u00e1 n\u011bco spole\u010dn\u00e9ho s kryptom\u011bnami?<\/a> Poj\u010fme to vysv\u011btlit.<\/p>\n\n\n\n

P\u0159ed dvan\u00e1cti lety se osoba (nebo skupina lid\u00ed) zn\u00e1m\u00e1 jako Satoshi Nakamoto pokou\u0161ela vy\u0159e\u0161it probl\u00e9m dvoj\u00edho utr\u00e1cen\u00ed za digit\u00e1ln\u00ed hotovost bez d\u016fv\u011bry. OK! M\u016f\u017eeme trochu zpomalit. Dvoj\u00ed utr\u00e1cen\u00ed je v z\u00e1sad\u011b utr\u00e1cen\u00ed stejn\u00fdch digit\u00e1ln\u00edch pen\u011bz v\u00edcekr\u00e1t (jak by m\u011blo b\u00fdt). V\u00edte, m\u016f\u017eete zkop\u00edrovat a vlo\u017eit t\u00e9m\u011b\u0159 v\u0161e na internet, pro\u010d ne pen\u00edze?<\/p>\n\n\n\n

Abychom se tomuto chov\u00e1n\u00ed vyhnuli, d\u016fv\u011b\u0159ovali jsme centralizovan\u00fdm instituc\u00edm, jako jsou banky a vl\u00e1dy. Jakmile ode\u0161lete elektronick\u00fd bankovn\u00ed p\u0159evod, syst\u00e9m banky tyto pen\u00edze z va\u0161eho \u00fa\u010dtu slev\u00ed. Pokud by tam nebyli, pravd\u011bpodobn\u011b by lid\u00e9 utratili n\u011bkolikr\u00e1t stejn\u00e9 pen\u00edze. A \u017ee je to jako loupe\u017e.<\/p>\n\n\n\n

Tak, Satoshi p\u0159em\u00fd\u0161lel v automatick\u00e9m syst\u00e9mu, kter\u00fd by nahradil tyto centralizovan\u00e9 instituce <\/strong>a umo\u017enit sou\u010dasn\u011b m\u00edt digit\u00e1ln\u00ed hotovost bez probl\u00e9mu dvoj\u00edho utr\u00e1cen\u00ed. Popadl pak n\u011bjakou experiment\u00e1ln\u00ed kryptografickou (\u0161ifrovanou) datab\u00e1zi vytvo\u0159enou v 70. letech a sm\u00edchal ji s dal\u0161\u00edmi technologick\u00fdmi prvky, aby vytvo\u0159il prvn\u00ed decentralizovanou digit\u00e1ln\u00ed m\u011bnu bez probl\u00e9mu dvoj\u00edho utr\u00e1cen\u00ed. A Bitcoin se narodil v roce 2009!<\/p>\n\n\n\n

\"\"
Obr\u00e1zek Gerd Altmann \/ Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n

Tato experiment\u00e1ln\u00ed kryptografick\u00e1 datab\u00e1ze je slavn\u00fdm blockchainem, navzdory tomu, \u017ee to tehdy nikdo nev\u011bd\u011bl. Ani satoshi: jm\u00e9no p\u0159i\u0161lo po Bitcoin<\/a>. Pro\u010d ne \u201ekrypto-datab\u00e1ze\u201c nebo n\u011bco podobn\u00e9ho m\u00edsto \u201eblockchainu\u201c? Je to proto, \u017ee datab\u00e1ze je ve skute\u010dnosti ... jak to zn\u00ed, \u0159et\u011bz blok\u016f. Digit\u00e1ln\u00ed bloky.<\/p>\n\n\n\n

Jak funguj\u00ed bloky?<\/strong><\/h2>\n\n\n\n

Ka\u017ed\u00fd \u201eblok\u201c je mal\u00fd kontejner dat<\/strong> (pen\u011b\u017en\u00ed transakce, v p\u0159\u00edpad\u011b kryptom\u011bny), p\u0159ipoutan\u00fd ke v\u0161em ostatn\u00edm (minulosti a futures) s n\u011b\u010d\u00edm, co se naz\u00fdv\u00e1 \u201ehashe\u201c. Jedn\u00e1 se o \u0161ifrovan\u00fd v\u00fdsledek p\u0159ed\u00e1v\u00e1n\u00ed dat slo\u017eit\u00fdm algoritmem. N\u011bco takov\u00e9ho (pokud pou\u017eijeme Algoritmus SHA256<\/a>):<\/p>\n\n\n\n

* Po\u010d\u00e1te\u010dn\u00ed data: P\u0159evedli jste 1 BTC na Mikea.
* Ha\u0161ovan\u00e1 data: 710DAEB54021CCD83046E4FA16106E4DC10E5D617E4C28F61CE29C29CFAE823E<\/p>\n\n\n\n

Ka\u017ed\u00fd hash p\u0159edstavuje jedine\u010dnou identitu pro ka\u017edou transakci a ka\u017ed\u00fd existuj\u00edc\u00ed blok (skupinu transakc\u00ed). V\u0161echny tyto identity se pozd\u011bji matematicky spoj\u00ed a \u201e\u0159et\u011bz\u00ed\u201c se tak. Pokud se tedy n\u011bkdo pokus\u00ed podv\u00e1d\u011bt, hash jeho transakce (jedine\u010dn\u00e1 identita) se zm\u011bn\u00ed; a pokud se zm\u011bn\u00ed, bude zru\u0161eno sv\u00e1z\u00e1n\u00ed a stane se automaticky neplatn\u00fdm.<\/p>\n\n\n\n

\"\"
Obr\u00e1zek Christine Schmidt \/ Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n

Nap\u0159\u00edklad si zapamatujme na\u0161e po\u010d\u00e1te\u010dn\u00ed data (Mikeovi jste p\u0159enesli 1 BTC). Zm\u011bn\u00edme-li tam i mal\u00fd znak, radik\u00e1ln\u011b se zm\u011bn\u00ed i hash:<\/p>\n\n\n\n

* Po\u010d\u00e1te\u010dn\u00ed data: P\u0159evedli jste 2 BTC na Mikea.
* Ha\u0161ovan\u00e1 data: 005002AC29AE0D1944110DB27CC73E9090F013B15207D84F2086B8646DAF549E<\/p>\n\n\n\n

Transakce ji\u017e nen\u00ed platn\u00e1 a vy, chud\u00e1k smrteln\u00edk, nem\u016f\u017eete oklamat blockchainov\u00fd syst\u00e9m. I kdy\u017e \u00fa\u0159ady nedohl\u00ed\u017e\u00ed. Nyn\u00ed ale poj\u010fme simulovat \u201eslu\u010dov\u00e1n\u00ed\u201c mezi transakcemi. \u0158ekn\u011bme, \u017ee tyto hashe jsou skute\u010dn\u011b platn\u00e9 a p\u0159edstavuj\u00ed identity dvou r\u016fzn\u00fdch blok\u016f. Jak se navz\u00e1jem spojuj\u00ed? Samoz\u0159ejm\u011b se hashuj\u00ed.<\/strong> Jako toto:<\/p>\n\n\n\n

* Po\u010d\u00e1te\u010dn\u00ed \u00fadaje:
710DAEB54021CCD83046E4FA16106E4DC10E5D617E4C28F61CE29C29CFAE823E
005002AC29AE0D1944110DB27CC73E9090F013B15207D84F2086B8646DAF549E
* Ha\u0161ovan\u00e1 data: EDFE12B5DB008F6491BA671DBE6BA25BD89BD6445B5003E9B3789605DBD24AD8<\/p>\n\n\n\n

A to je v\u0161e! Pokud chcete n\u011bco zm\u011bnit a u\u010dinit to platn\u00fdm, mus\u00edte nejprve rozlu\u0161tit a zm\u011bnit ka\u017ed\u00fd existuj\u00edc\u00ed blok. Hodn\u011b \u0161t\u011bst\u00ed.<\/p>\n\n\n\n

Blockchain nefunguje s\u00e1m<\/strong><\/h2>\n\n\n\n

Navzdory matematice tato sofistikovan\u00e1 \u00fa\u010detn\u00ed kniha nem\u016f\u017ee fungovat sama. Pot\u0159ebuje dal\u0161\u00ed prvky, kter\u00e9 do n\u011bj p\u0159idal Satoshi: distribuovanou s\u00ed\u0165 uzl\u016f (a lid\u00ed), v\u00fd\u0161e zm\u00edn\u011bn\u00fd algoritmus pro \u0161ifrov\u00e1n\u00ed transakc\u00ed a nastaven\u00ed pravidel pro valid\u00e1tory, transakce, kter\u00e9 se maj\u00ed utratit nebo \u201ecoiny\u201c, a soukrom\u00e9 a ve\u0159ejn\u00e9 kryptografick\u00e9 kl\u00ed\u010de. Pod\u00edvejme se rychle jeden po druh\u00e9m.<\/p>\n\n\n\n

Distribuovan\u00e1 s\u00ed\u0165<\/strong> <\/h3>\n\n\n\n
\"\"
Obr\u00e1zek Gerd Altmann \/ Pixabay <\/em><\/figcaption><\/figure><\/div>\n\n\n\n

Nejsou to banky nebo vl\u00e1dy, ale n\u011bkdo by m\u011bl transakce n\u011bjak\u00fdm zp\u016fsobem ov\u011b\u0159it. A pro decentralizovan\u00e9 syst\u00e9my (jako v\u011bt\u0161ina kryptom\u011bn) by to byla distribuovan\u00e1 s\u00ed\u0165 p\u0159izp\u016fsoben\u00e1 spoust\u011b lid\u00ed po cel\u00e9m sv\u011bt\u011b a jejich po\u010d\u00edta\u010d\u016fm a vybaven\u00ed (uzly). Zvl\u00e1\u0161t\u011b ty posledn\u00ed.<\/p>\n\n\n\n

Jedn\u00e1 se o to, ka\u017ed\u00fd \u010dlen s\u00edt\u011b (zn\u00e1m\u00fd jako horn\u00edk nebo valid\u00e1tor<\/a>) m\u00e1 ve sv\u00e9m hardwaru kopii cel\u00e9ho blockchainu<\/strong>a jejich specializovan\u00fd software nebo t\u011b\u017eebn\u00ed za\u0159\u00edzen\u00ed je odpov\u011bdn\u00e9 za ov\u011b\u0159ov\u00e1n\u00ed a veden\u00ed z\u00e1znam\u016f o v\u0161ech nov\u00fdch transakc\u00edch a razen\u00ed nov\u00fdch \u201eminc\u00ed\u201c; dodr\u017eov\u00e1n\u00ed matematick\u00fdch pravidel stanoven\u00fdch algoritmem syst\u00e9mu. V\u00fdsledek by m\u011bl b\u00fdt pro v\u011bt\u0161inu ov\u011b\u0159ovatel\u016f v\u017edy stejn\u00fd, jinak bude transakce nebo blok neplatn\u00fd.<\/p>\n\n\n\n

Konsenzu\u00e1ln\u00ed algoritmus <\/strong><\/h2>\n\n\n\n
\"\"
Obr\u00e1zek Tomasz Miko\u0142ajczyk \/ Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n

M\u016f\u017eeme definovat algoritmus jako soubor krok\u016f a metod, kter\u00e9 jsou vytvo\u0159eny - s matematikou - k dosa\u017een\u00ed konkr\u00e9tn\u00edho v\u00fdsledku nebo k vy\u0159e\u0161en\u00ed probl\u00e9mu. Existuje spousta algoritm\u016f a ne v\u0161echny funguj\u00ed na vybudov\u00e1n\u00ed blockchainu. M\u011bly by b\u00fdt velmi slo\u017eit\u00e9 a siln\u00e9, aby udr\u017eovaly vysokou bezpe\u010dnost a vynucovaly pravidla mezi valid\u00e1tory.<\/p>\n\n\n\n

Ne ka\u017ed\u00fd syst\u00e9m kryptom\u011bny nebo blockchain pou\u017e\u00edv\u00e1 stejn\u00fd algoritmus.<\/strong> Nap\u0159\u00edklad Bitcoin<\/a>, pou\u017e\u00edv\u00e1 SHA256 (ten, kter\u00fd jsme pou\u017eili d\u0159\u00edve), ale Ethereum pou\u017e\u00edv\u00e1 Ethash a Zcash pou\u017e\u00edv\u00e1 Equihash. Jsou to r\u016fzn\u00e9 matematick\u00e9 funkce, ale \u00fa\u010del je stejn\u00fd: \u0161ifrov\u00e1n\u00ed dat.  <\/p>\n\n\n\n

Nevy\u010derpan\u00e9 transak\u010dn\u00ed v\u00fdstupy (UTXO) <\/strong><\/h3>\n\n\n\n
\"\"
Obr\u00e1zek Matthias Wewering \/ Pixabay <\/figcaption><\/figure><\/div>\n\n\n\n

V\u00edme, \u017ee tento term\u00edn zn\u00ed obt\u00ed\u017en\u011b, ale jedn\u00e1 se o \u201edigit\u00e1ln\u00ed mince\u201c nebo transakce samy o sob\u011b. Jsou jako fragmenty majetku, kter\u00e9 se sm\u011b\u0148uj\u00ed s ostatn\u00edmi lidmi. M\u016f\u017eete je tak\u00e9 porovnat s bankovkami nebo centy uvnit\u0159 va\u0161\u00ed fyzick\u00e9 pen\u011b\u017eenky.<\/p>\n\n\n\n

Soukrom\u00e9 a ve\u0159ejn\u00e9 kryptografick\u00e9 kl\u00ed\u010de<\/strong><\/h3>\n\n\n\n
\"\"
Obr\u00e1zek IntelFreePress \/ Flickr<\/figcaption><\/figure><\/div>\n\n\n\n

Jedn\u00e1 se o matematick\u00e9 kl\u00ed\u010de, kter\u00e9 funguj\u00ed jako adresy pro odes\u00edl\u00e1n\u00ed a p\u0159ij\u00edm\u00e1n\u00ed finan\u010dn\u00edch prost\u0159edk\u016f uvnit\u0159 blockchainu. Ve\u0159ejn\u00fd kl\u00ed\u010d je jako \u010d\u00edslo bankovn\u00edho \u00fa\u010dtu:<\/strong> m\u016f\u017eete je svobodn\u011b sd\u00edlet a p\u0159ij\u00edmat pen\u00edze. Soukrom\u00fd kl\u00ed\u010d na druh\u00e9 stran\u011b pracuje na \u201epodeps\u00e1n\u00ed\u201c transakc\u00ed a ov\u011b\u0159en\u00ed skute\u010dn\u00e9ho vlastn\u00edka a jeho z\u00e1m\u011bru poslat finan\u010dn\u00ed prost\u0159edky. Jin\u00fdmi slovy, soukrom\u00fd kl\u00ed\u010d je jako heslo a soukrom\u00fd i ve\u0159ejn\u00fd kl\u00ed\u010d tvo\u0159\u00ed \u201e\u00fa\u010det\u201c v kryptom\u011bn\u011b nebo blockchainu.<\/p>\n\n\n\n


\u201eBlockchain\u201c neznamen\u00e1 v\u017edy \u201edecentralizovan\u00fd\u201c<\/strong><\/h2>\n\n\n\n

Jak jsme \u0159ekli nejprve, blockchain nemus\u00ed b\u00fdt distribuov\u00e1n a nemus\u00ed b\u00fdt decentralizovan\u00fd. Je to koneckonc\u016f jen kryptografick\u00e1 kniha a dal\u0161\u00ed prvky, kter\u00e9 s n\u00ed pracuj\u00ed, se mohou m\u011bnit podle pot\u0159eb jejich tv\u016frc\u016f.<\/p>\n\n\n\n

Satoshi Nakamoto byl prvn\u00ed, kdo ji pou\u017eil s Bitcoin, ale zdrojov\u00fd k\u00f3d<\/a> proto\u017ee tento druh \u00fa\u010detn\u00ed knihy je p\u0159\u00edstupn\u00fd ve\u0159ejnosti. Lze jej kop\u00edrovat, vkl\u00e1dat, upravovat a dokonce prod\u00e1vat. Tak\u017ee spousta lid\u00ed (a podnik\u016f) po cel\u00e9m sv\u011bt\u011b zkou\u0161\u00ed tuto technologii pro sv\u00e9 vlastn\u00ed pou\u017eit\u00ed, dokonce i mimo kryptom\u011bny. Banky nejsou vylou\u010deny: r\u00e1di pou\u017e\u00edvaj\u00ed blockchainy k budov\u00e1n\u00ed nov\u00fdch platebn\u00edch platforem. A jak si dok\u00e1\u017eete p\u0159edstavit, nejsou decentralizovan\u00e9, ale jsou zcela \u0159\u00edzeny institucion\u00e1ln\u00ed s\u00edt\u00ed.<\/p>\n\n\n\n

Blockchainy n\u011bkdy nefunguj\u00ed s distribuovan\u00fdmi s\u00edt\u011bmi, pouze s \u0159\u00edzen\u00fdmi intern\u00edmi s\u00edt\u011bmi<\/strong>. Tento druh platformy vy\u017eaduje u\u017eivatelsk\u00e1 opr\u00e1vn\u011bn\u00ed od tv\u016frc\u016f, proto se jim \u0159\u00edk\u00e1 \u201eopr\u00e1vn\u011bn\u00e9\u201c nebo soukrom\u00e9 blockchainy. Na druhou stranu kryptom\u011bny a platformy jako Bitcoin funguj\u00ed s decentralizovan\u00fdmi s\u00edt\u011bmi. D\u00edky tomu jsou \u201ebez povolen\u00ed\u201c nebo ve\u0159ejn\u00ed.<\/p>\n\n\n\n

\n\n\n\n

Chcete obchodovat BTC, ETH a dal\u0161\u00ed tokeny? M\u016f\u017ee\u0161 to ud\u011blat<\/em>\u00a0bezpe\u010dn\u011b\u00a0na Alfacash<\/a>! A nezapome\u0148te, \u017ee mluv\u00edme o tomto a mnoha dal\u0161\u00edch v\u011bcech na na\u0161ich soci\u00e1ln\u00edch m\u00e9di\u00edch.

<\/em>Cvrlik\u00e1n\u00ed<\/a>\u00a0*\u00a0Telegram<\/a>\u00a0*\u00a0Instagram<\/a> * Youtube<\/a>\u00a0*Facebook<\/a>\u00a0\u00a0*\u00a0Vkontakte<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Ka\u017ed\u00fd chce n\u011bco s blockchainem, i kdy\u017e nev\u00ed, co p\u0159esn\u011b je \u201eblockchain\u201c. Poj\u010fme na to tedy p\u0159ij\u00edt!<\/p>","protected":false},"author":5,"featured_media":3747,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[48],"tags":[43,86,44,56,87,72],"class_list":{"0":"post-3985","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-learn","8":"tag-bitcoin","9":"tag-blockchain","10":"tag-decentralization","11":"tag-how-to","12":"tag-ledger","13":"tag-mining"},"featured_image_src":"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg","author_info":{"display_name":"Isabel P\u00e9rez","author_link":"https:\/\/alfacash.blog\/cs\/author\/isabel\/"},"yoast_head":"\nFor dummies: what is a blockchain and how it works? - alfa.cash blog<\/title>\n<meta name=\"description\" content=\"Everybody wants something with blockchain, even if they don\u2019t know exactly what a \u201cblockchain\u201d is. So, let's figure it out!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/alfacash.blog\/cs\/2020\/08\/30\/figuriny-co-je-blockchain-jak-to-funguje\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"For dummies: what is a blockchain and how it works?\" \/>\n<meta property=\"og:description\" content=\"Everybody wants something with blockchain, even if they don\u2019t know exactly what a \u201cblockchain\u201d is. So, let's figure it out!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/alfacash.blog\/cs\/2020\/08\/30\/figuriny-co-je-blockchain-jak-to-funguje\/\" \/>\n<meta property=\"og:site_name\" content=\"alfa.cash blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/alfacashstore\" \/>\n<meta property=\"article:published_time\" content=\"2020-08-30T01:28:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-02-19T18:53:20+00:00\" \/>\n<meta name=\"author\" content=\"Isabel P\u00e9rez\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@AlfacashStore\" \/>\n<meta name=\"twitter:site\" content=\"@AlfacashStore\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\"},\"author\":{\"name\":\"Isabel P\u00e9rez\",\"@id\":\"https:\/\/alfacash.blog\/#\/schema\/person\/0c5d337f38e41e7ad754d6752d517749\"},\"headline\":\"For dummies: what is a blockchain and how it works?\",\"datePublished\":\"2020-08-30T01:28:18+00:00\",\"dateModified\":\"2024-02-19T18:53:20+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\"},\"wordCount\":1453,\"publisher\":{\"@id\":\"https:\/\/alfacash.blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg\",\"keywords\":[\"bitcoin\",\"blockchain\",\"decentralization\",\"How to\",\"Ledger\",\"Mining\"],\"articleSection\":[\"Learn\"],\"inLanguage\":\"cs\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\",\"url\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\",\"name\":\"For dummies: what is a blockchain and how it works? - alfa.cash blog\",\"isPartOf\":{\"@id\":\"https:\/\/alfacash.blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg\",\"datePublished\":\"2020-08-30T01:28:18+00:00\",\"dateModified\":\"2024-02-19T18:53:20+00:00\",\"description\":\"Everybody wants something with blockchain, even if they don\u2019t know exactly what a \u201cblockchain\u201d is. So, let's figure it out!\",\"breadcrumb\":{\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#primaryimage\",\"url\":\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg\",\"contentUrl\":\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg\",\"width\":770,\"height\":500},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/alfacash.blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"For dummies: what is a blockchain and how it works?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/alfacash.blog\/#website\",\"url\":\"https:\/\/alfacash.blog\/\",\"name\":\"Alfacash Blog\",\"description\":\"Alfacash blog is about Crypto, Bitcoin, Ethereum, DeFi\",\"publisher\":{\"@id\":\"https:\/\/alfacash.blog\/#organization\"},\"alternateName\":\"alfacash.blog\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/alfacash.blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"cs\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/alfacash.blog\/#organization\",\"name\":\"Alfacash Blog\",\"alternateName\":\"alfacash.blog\",\"url\":\"https:\/\/alfacash.blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/alfacash.blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/alfacash.blog\/wp-content\/uploads\/2024\/02\/Transparent.svg\",\"contentUrl\":\"https:\/\/alfacash.blog\/wp-content\/uploads\/2024\/02\/Transparent.svg\",\"width\":696,\"height\":696,\"caption\":\"Alfacash Blog\"},\"image\":{\"@id\":\"https:\/\/alfacash.blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/alfacashstore\",\"https:\/\/x.com\/AlfacashStore\",\"https:\/\/t.me\/AlfacashCommunity\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/alfacash.blog\/#\/schema\/person\/0c5d337f38e41e7ad754d6752d517749\",\"name\":\"Isabel P\u00e9rez\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/alfacash.blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/43373ef58d2993ad0d7e7ca541859e533849fec2c4ad5f7a028689d120be1af8?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/43373ef58d2993ad0d7e7ca541859e533849fec2c4ad5f7a028689d120be1af8?s=96&d=mm&r=g\",\"caption\":\"Isabel P\u00e9rez\"},\"description\":\"I'm a literature professional in the crypto world since 2016. It doesn't sound very compatible, but I've been learning and teaching about blockchain and cryptos for international portals since then. After hundreds of articles and diverse content about the topic, now you can find me here on Alfacash, working for more decentralization.\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/isabel-prez-6b3786137\/\"],\"url\":\"https:\/\/alfacash.blog\/cs\/author\/isabel\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"For dummies: what is a blockchain and how it works? - alfa.cash blog","description":"Everybody wants something with blockchain, even if they don\u2019t know exactly what a \u201cblockchain\u201d is. So, let's figure it out!","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/alfacash.blog\/cs\/2020\/08\/30\/figuriny-co-je-blockchain-jak-to-funguje\/","og_locale":"cs_CZ","og_type":"article","og_title":"For dummies: what is a blockchain and how it works?","og_description":"Everybody wants something with blockchain, even if they don\u2019t know exactly what a \u201cblockchain\u201d is. So, let's figure it out!","og_url":"https:\/\/alfacash.blog\/cs\/2020\/08\/30\/figuriny-co-je-blockchain-jak-to-funguje\/","og_site_name":"alfa.cash blog","article_publisher":"https:\/\/www.facebook.com\/alfacashstore","article_published_time":"2020-08-30T01:28:18+00:00","article_modified_time":"2024-02-19T18:53:20+00:00","author":"Isabel P\u00e9rez","twitter_card":"summary_large_image","twitter_creator":"@AlfacashStore","twitter_site":"@AlfacashStore","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#article","isPartOf":{"@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/"},"author":{"name":"Isabel P\u00e9rez","@id":"https:\/\/alfacash.blog\/#\/schema\/person\/0c5d337f38e41e7ad754d6752d517749"},"headline":"For dummies: what is a blockchain and how it works?","datePublished":"2020-08-30T01:28:18+00:00","dateModified":"2024-02-19T18:53:20+00:00","mainEntityOfPage":{"@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/"},"wordCount":1453,"publisher":{"@id":"https:\/\/alfacash.blog\/#organization"},"image":{"@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#primaryimage"},"thumbnailUrl":"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg","keywords":["bitcoin","blockchain","decentralization","How to","Ledger","Mining"],"articleSection":["Learn"],"inLanguage":"cs"},{"@type":"WebPage","@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/","url":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/","name":"For dummies: what is a blockchain and how it works? - alfa.cash blog","isPartOf":{"@id":"https:\/\/alfacash.blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#primaryimage"},"image":{"@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#primaryimage"},"thumbnailUrl":"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg","datePublished":"2020-08-30T01:28:18+00:00","dateModified":"2024-02-19T18:53:20+00:00","description":"Everybody wants something with blockchain, even if they don\u2019t know exactly what a \u201cblockchain\u201d is. So, let's figure it out!","breadcrumb":{"@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#breadcrumb"},"inLanguage":"cs","potentialAction":[{"@type":"ReadAction","target":["https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/"]}]},{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#primaryimage","url":"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg","contentUrl":"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/08\/What-is-a-blockchain-deep-inside.svg","width":770,"height":500},{"@type":"BreadcrumbList","@id":"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/alfacash.blog\/"},{"@type":"ListItem","position":2,"name":"For dummies: what is a blockchain and how it works?"}]},{"@type":"WebSite","@id":"https:\/\/alfacash.blog\/#website","url":"https:\/\/alfacash.blog\/","name":"Alfacash Blog","description":"Alfacash blog is about Crypto, Bitcoin, Ethereum, DeFi","publisher":{"@id":"https:\/\/alfacash.blog\/#organization"},"alternateName":"alfacash.blog","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/alfacash.blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"cs"},{"@type":"Organization","@id":"https:\/\/alfacash.blog\/#organization","name":"Alfacash Blog","alternateName":"alfacash.blog","url":"https:\/\/alfacash.blog\/","logo":{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/alfacash.blog\/#\/schema\/logo\/image\/","url":"https:\/\/alfacash.blog\/wp-content\/uploads\/2024\/02\/Transparent.svg","contentUrl":"https:\/\/alfacash.blog\/wp-content\/uploads\/2024\/02\/Transparent.svg","width":696,"height":696,"caption":"Alfacash Blog"},"image":{"@id":"https:\/\/alfacash.blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/alfacashstore","https:\/\/x.com\/AlfacashStore","https:\/\/t.me\/AlfacashCommunity"]},{"@type":"Person","@id":"https:\/\/alfacash.blog\/#\/schema\/person\/0c5d337f38e41e7ad754d6752d517749","name":"Isabel P\u00e9rez","image":{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/alfacash.blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/43373ef58d2993ad0d7e7ca541859e533849fec2c4ad5f7a028689d120be1af8?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/43373ef58d2993ad0d7e7ca541859e533849fec2c4ad5f7a028689d120be1af8?s=96&d=mm&r=g","caption":"Isabel P\u00e9rez"},"description":"I'm a literature professional in the crypto world since 2016. It doesn't sound very compatible, but I've been learning and teaching about blockchain and cryptos for international portals since then. After hundreds of articles and diverse content about the topic, now you can find me here on Alfacash, working for more decentralization.","sameAs":["https:\/\/www.linkedin.com\/in\/isabel-prez-6b3786137\/"],"url":"https:\/\/alfacash.blog\/cs\/author\/isabel\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/posts\/3985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/comments?post=3985"}],"version-history":[{"count":7,"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/posts\/3985\/revisions"}],"predecessor-version":[{"id":8739,"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/posts\/3985\/revisions\/8739"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/media\/3747"}],"wp:attachment":[{"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/media?parent=3985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/categories?post=3985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alfacash.blog\/cs\/wp-json\/wp\/v2\/tags?post=3985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}