{"id":39018,"date":"2019-10-31T22:27:25","date_gmt":"2019-10-31T19:27:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kniga-sozdanie-smart-kontraktov-solidity-dlya-blokchejna-ethereum-prakticheskoe-rukovodstvo\/"},"modified":"2019-10-31T22:27:25","modified_gmt":"2019-10-31T19:27:25","slug":"kniga-sozdanie-smart-kontraktov-solidity-dlya-blokchejna-ethereum-prakticheskoe-rukovodstvo","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/kniga-sozdanie-smart-kontraktov-solidity-dlya-blokchejna-ethereum-prakticheskoe-rukovodstvo","title":{"rendered":"Libri \u00abKrijimi i Kontratave t\u00eb Men\u00e7ura Solidity p\u00ebr Blockchainin Ethereum. Udh\u00ebzues Praktik\u00bb","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Libri
\nKam punuar p\u00ebr m\u00eb shum\u00eb se nj\u00eb vit mbi librin \u00abKrijimi i kontratave t\u00eb men\u00e7ura Solidity p\u00ebr blockchainin Ethereum. Udh\u00ebzues praktik\u00bb, dhe tani puna \u00ebsht\u00eb e p\u00ebrfunduar, libri \u00ebsht\u00eb botuar dhe i aksesuesh\u00ebm n\u00eb Litrese.<\/a><\/noindex>.<\/p>\n

Shpresoj se libri im do t\u00eb ndihmoj\u00eb t\u00eb filloni shpejt krijimin e kontratave t\u00eb men\u00e7ura Solidity dhe aplikacioneve t\u00eb shp\u00ebrndara DApp p\u00ebr blockchainin Ethereum. Ai p\u00ebrb consists nga 12 m\u00ebsime me detyra praktike. Pas p\u00ebrfundimit t\u00eb tyre, lexuesi do t\u00eb jet\u00eb n\u00eb gjendje t\u00eb krijoj\u00eb nyjat e tij lokale Ethereum, t\u00eb publikoj\u00eb kontrata t\u00eb men\u00e7ura dhe t\u00eb th\u00ebrras\u00eb metodat e tyre, t\u00eb shk\u00ebmbej\u00eb t\u00eb dh\u00ebna mes bot\u00ebs reale dhe kontratave t\u00eb men\u00e7ura me an\u00eb t\u00eb orakujve, t\u00eb punoj\u00eb me rrjetin e testimit Rinkeby. <\/p>\n

Libri \u00ebsht\u00eb drejtuar t\u00eb gjith\u00eb atyre q\u00eb jan\u00eb t\u00eb interesuar p\u00ebr teknologjit\u00eb e avancuara n\u00eb fush\u00ebn e blockchaineve dhe duan t\u00eb fitojn\u00eb shpejt njohuri q\u00eb lejojn\u00eb pun\u00eb interesante dhe me perspektiv\u00eb.<\/p>\n

M\u00eb posht\u00eb do t\u00eb gjeni p\u00ebrmbajtjen dhe kapitullin e par\u00eb t\u00eb librit (po ashtu n\u00eb Litrese<\/a><\/noindex> jan\u00eb t\u00eb aksesueshme fragmente t\u00eb librit). Shpresoj t\u00eb marr reagime, v\u00ebrejtje dhe sugjerime. T\u00eb gjitha k\u00ebto do t'i marr parasysh gjat\u00eb p\u00ebrgatitjes s\u00eb edi\u00e7ionit t\u00eb ardhsh\u00ebm t\u00eb librit.
\n<\/a><\/noindex>
\nP\u00ebrmbajtja<\/b>Hyrje<\/b>Libri yn\u00eb \u00ebsht\u00eb p\u00ebr ata q\u00eb duan jo vet\u00ebm t\u00eb kuptojn\u00eb parimet e funksionimit t\u00eb blockchain-it Ethereum, por edhe t\u00eb fitojn\u00eb aft\u00ebsi praktike n\u00eb krijimin e aplikacioneve t\u00eb shp\u00ebrndara DApp n\u00eb gjuh\u00ebn e programimit Solidity p\u00ebr k\u00ebt\u00eb rrjet.<\/p>\n

Ky lib\u00ebr \u00ebsht\u00eb m\u00eb i mir\u00eb p\u00ebr t'u punuar praktisht, duke kryer detyrat q\u00eb p\u00ebrshkruhen n\u00eb m\u00ebsime. P\u00ebr ta punuar, do t\u00eb nevojitet nj\u00eb kompjuter lokal, nj\u00eb server virtual ose t\u00eb bazuar n\u00eb cloud me sistemin operativ Debian ose Ubuntu t\u00eb instaluar. Po ashtu, p\u00ebr kryerjen e shum\u00eb detyrave mund t\u00eb p\u00ebrdoret Raspberry Pi.<\/p>\n

N\u00eb m\u00ebsimin e par\u00eb <\/b>ne do t\u00eb shqyrtojm\u00eb parimet e funksionimit t\u00eb blockchain-it Ethereum dhe terminologjin\u00eb kryesore, si dhe do t\u00eb flasim mbi vendet ku mund t\u00eb p\u00ebrdoret ky blockchain. <\/p>\n

Q\u00ebllimi m\u00ebsimit t\u00eb dyt\u00eb<\/b> \u2014 krijimi i nj\u00eb nodi t\u00eb blockchain-it privat Ethereum p\u00ebr pun\u00eb t\u00eb m\u00ebtejshme n\u00eb kuad\u00ebr t\u00eb k\u00ebtij kursi n\u00eb serverin Ubuntu dhe Debian. Ne do t\u00eb shqyrtojm\u00eb ve\u00e7antit\u00eb e instalimit t\u00eb mjeteve kryesore, t\u00eb tilla si geth, q\u00eb siguron funksionimin e nodit t\u00eb blockchain-it ton\u00eb, si dhe demonin e ruajtjes s\u00eb decentralizuar t\u00eb t\u00eb dh\u00ebnave swarm.<\/p>\n

M\u00ebsimi i tret\u00eb<\/b> do t'ju m\u00ebsoj\u00eb t\u00eb kryeni eksperimente me Ethereum n\u00eb nj\u00eb mikrokompjuter t\u00eb lir\u00eb Raspberry Pi. Do t\u00eb instaloni sistemin operativ (OS) Rasberian n\u00eb Raspberry Pi, utilitarin Geth q\u00eb siguron funksionimin e nodit t\u00eb bllokut t\u00eb zinxhir\u00ebve, si dhe demonin e ruajtjes s\u00eb dh\u00ebnash t\u00eb decentralizuara Swarm.<\/p>\n

M\u00ebsimi i kat\u00ebrt<\/b> \u00ebsht\u00eb i dedikuar p\u00ebr llogarit\u00eb dhe nj\u00ebsit\u00eb e kriptovalut\u00ebs n\u00eb rrjetin Ethereum, si dhe m\u00ebnyrat e transferimit t\u00eb fondeve nga nj\u00eb llogari n\u00eb tjetr\u00ebn nga konsola Geth. Do t\u00eb m\u00ebsoni si t\u00eb krijoni llogari, t\u00eb inicioni transaksione p\u00ebr transferimin e fondeve, t\u00eb merrni gjendjen e transaksionit dhe pranuar mjetin e tij.<\/p>\n

N\u00eb m\u00ebsimin e pest\u00eb<\/b> do t\u00eb njiheni me kontratat inteligjente n\u00eb rrjetin Ethereum, dhe do t\u00eb m\u00ebsoni rreth ekzekutimit t\u00eb tyre nga makineria virtuale Ethereum. <\/p>\n

Do t\u00eb krijoni dhe publikoni kontrat\u00ebn tuaj t\u00eb par\u00eb inteligjente n\u00eb nj\u00eb rrjet privat Ethereum dhe do t\u00eb m\u00ebsoni si t\u00eb thirrni funksionet e saj. P\u00ebr k\u00ebt\u00eb do t\u00eb p\u00ebrdorni ambientin e zhvillimit Remix Solidity IDE. P\u00ebr m\u00eb tep\u00ebr, do t\u00eb m\u00ebsoni si t\u00eb instaloni dhe p\u00ebrdorni kompajlerin paket\u00eb solc.
\nPo ashtu, do t'ju flasim p\u00ebr at\u00eb q\u00eb quhet nd\u00ebrfaqja binare e aplikacionit Application Binary Interface (ABI) dhe do t'ju m\u00ebsojm\u00eb si ta p\u00ebrdorni at\u00eb.<\/p>\n

M\u00ebsimi i gjasht\u00eb<\/b> i kushton krijimit t\u00eb skripteve JavaScript, q\u00eb funksionojn\u00eb n\u00ebn menaxhimin e Node.js dhe kryejn\u00eb operacione me kontrata t\u00eb men\u00e7ura Solidity.<\/p>\n

Do t\u00eb instaloni Node.js n\u00eb sistemet operative Ubuntu, Debian dhe Raspbian, do t\u00eb shkruani skripte p\u00ebr publikimin e kontrat\u00ebs s\u00eb men\u00e7ur n\u00eb rrjetin lokal Ethereum dhe thirrjen e funksioneve t\u00eb saj. <\/p>\n

P\u00ebr m\u00eb tep\u00ebr, do t\u00eb m\u00ebsoni si t\u00eb transferoni mjete midis llogarive normale me an\u00eb t\u00eb skripteve dhe si t\u2019i kreditoni ato n\u00eb llogarit\u00eb e kontratave t\u00eb men\u00e7ura.<\/p>\n

N\u00eb m\u00ebsimin e shtat\u00eb<\/b> do t\u00eb m\u00ebsoni t\u00eb instaloni dhe p\u00ebrdorni ambientin e integruar Truffle, q\u00eb \u00ebsht\u00eb popullor mes zhvilluesve t\u00eb kontratave t\u00eb men\u00e7ura Solidity. Do t\u00eb m\u00ebsoni t\u00eb krijoni skripte JavaScript q\u00eb th\u00ebrrasin funksionet e kontratave duke p\u00ebrdorur modulinn truffle-contract, si dhe t\u00eb testeoni kontrat\u00ebn tuaj t\u00eb men\u00e7ur me ndihm\u00ebn e Truffle.<\/p>\n

N\u00eb m\u00ebsimin e tet\u00eb<\/b> i kushton tipeve t\u00eb t\u00eb dh\u00ebnave n\u00eb Solidity. Do t\u00eb shkruani kontrata t\u00eb men\u00e7ura q\u00eb punojn\u00eb me tipe t\u00eb dh\u00ebnash si numra t\u00eb plot\u00eb me dhe pa n\u00ebnshkrim, numra me n\u00ebnshkrim, strings, adresa, variabla t\u00eb tipeve komplekse, array, enumerime, struktura dhe fjalor\u00eb.<\/p>\n

N\u00eb m\u00ebsimin e n\u00ebnt\u00eb<\/b> Ju do t\u00eb afroni edhe nj\u00eb hap m\u00eb pran\u00eb krijimit t\u00eb kontratave inteligjente p\u00ebr rrjetin kryesor Ethereum. Do t\u00eb m\u00ebsoni si t\u00eb publikoni kontrata duke p\u00ebrdorur Truffle n\u00eb nj\u00eb rrjet privat Geth, si dhe n\u00eb rrjetin testues Rinkeby. Debugging e kontratave inteligjente n\u00eb rrjetin Rinkeby \u00ebsht\u00eb shum\u00eb e dobishme para publikimit n\u00eb rrjetin kryesor \u2014 atje \u00ebsht\u00eb pothuajse gjith\u00e7ka e v\u00ebrtet\u00eb, por falas.<\/p>\n

Gjat\u00eb m\u00ebsimit do t\u00eb krijoni nj\u00eb nyj\u00eb t\u00eb rrjetit testues Rinkeby, do ta mbushni at\u00eb me fonde dhe do t\u00eb publikoni nj\u00eb kontrat\u00eb inteligjente.<\/p>\n

M\u00ebsimi 10<\/b> i kushtohet magazinave t\u00eb shp\u00ebrndara t\u00eb t\u00eb dh\u00ebnave Ethereum Swarm. Duke p\u00ebrdorur magazinat e shp\u00ebrndara, ju kurseni n\u00eb ruajtjen e t\u00eb dh\u00ebnave t\u00eb m\u00ebdha n\u00eb blockchainin Ethereum. <\/p>\n

Gjat\u00eb k\u00ebtij m\u00ebsimi do t\u00eb krijoni nj\u00eb magazin\u00eb lokale Swarm, do t\u00eb kryeni operacione t\u00eb shkrimit dhe leximit t\u00eb skedar\u00ebve, si dhe katalog\u00ebve me skedar\u00eb. M\u00eb pas do t\u00eb m\u00ebsoni si t\u00eb punoni me portalin publik Swarm, do t\u00eb shkruani skenar\u00eb p\u00ebr t\u00eb hyr\u00eb n\u00eb Swarm nga Node.js, po ashtu edhe me modulin Perl Net::Ethereum::Swarm.<\/p>\n

Q\u00ebllimi i m\u00ebsimit 11<\/b> \u2014 t\u00eb m\u00ebsoni t\u00eb punoni me kontratat smart Solidity duke p\u00ebrdorur gjuh\u00ebn e njohur programuese Python dhe korniz\u00ebn Web3.py. Do t\u00eb instaloni k\u00ebt\u00eb korniz\u00eb, do t\u00eb shkruani skripte p\u00ebr kompilimin dhe publikimin e kontratave smart, si dhe p\u00ebr thirrjen e funksioneve t\u00eb tyre. Gjat\u00eb k\u00ebsaj, Web3.py do t\u00eb p\u00ebrdoret si i till\u00eb, ashtu edhe n\u00eb bashk\u00ebpunim me ambientin e zhvillimit Truffle.<\/p>\n

N\u00eb m\u00ebsimin 12<\/b> do t\u00eb m\u00ebsoni t\u00eb kaloni t\u00eb dh\u00ebnat midis kontratave smart dhe bot\u00ebs reale duke p\u00ebrdorur oracle. Kjo do t'ju ndihmoj\u00eb t\u00eb merrni t\u00eb dh\u00ebna nga faqet e internetit, pajisjet e internetit t\u00eb gj\u00ebrave IoT, pajisje t\u00eb ndryshme dhe senzora, dhe t\u00eb d\u00ebrgoni t\u00eb dh\u00ebna nga kontratat smart n\u00eb k\u00ebto pajisje. N\u00eb pjes\u00ebn praktike t\u00eb m\u00ebsimit do t\u00eb krijoni nj\u00eb oracle dhe nj\u00eb kontrat\u00eb smart q\u00eb merr kursin aktual t\u00eb k\u00ebmbimit USD n\u00eb rubla nga faqja e Bank\u00ebs Qendrore t\u00eb RF.<\/p>\n

M\u00ebsimi 1. N\u00eb lidhje me blockchain dhe rrjetin Ethereum<\/b>Q\u00ebllimi i m\u00ebsimit:<\/b> t\u00eb njiheni me parimet e funksionimit t\u00eb blockchain Ethereum, fushat e aplikimit t\u00eb tij dhe terminologjin\u00eb kryesore.
\nDetyrat praktike:<\/b> n\u00eb k\u00ebt\u00eb m\u00ebsim nuk parashikohen.<\/p>\n

Sot, me siguri, nuk ka zhvillues software-i q\u00eb nuk ka d\u00ebgjuar p\u00ebr teknologjin\u00eb blockchain, kriptovalutat, bitcoin, ofertat fillestare t\u00eb monedhave (ICO), kontratat smart, si dhe p\u00ebr termat dhe konceptet e tjera q\u00eb lidhen me blockchain-in.<\/p>\n

Teknologjia e blockchain-it hap tregje t\u00eb reja dhe krijon vende pune p\u00ebr programuesit. N\u00ebse do t\u00eb m\u00ebsoni t\u00eb gjitha nuancat e teknologjive t\u00eb kriptovalutave dhe kontratave smart, nuk duhet t\u00eb keni probleme n\u00eb aplikimin e k\u00ebtyre njohurive n\u00eb praktik\u00eb.<\/p>\n

Kemi p\u00ebr t\u00eb th\u00ebn\u00eb se rreth kriptovalutave dhe blockchain-eve ka shum\u00eb spekulime. Ne do ta lem\u00eb anash diskutimin mbi ndryshimet e \u00e7mimeve t\u00eb kriptovalutave, krijimin e piramidave, nuancat e legjislacionit t\u00eb kriptovalutave, etj. N\u00eb kursin ton\u00eb t\u00eb m\u00ebsimit, do t\u00eb p\u00ebrqendrohemi kryesisht n\u00eb aspektet teknike t\u00eb p\u00ebrdorimit t\u00eb kontratave smart n\u00eb blockchain-in Ethereum dhe n\u00eb zhvillimin e ashtuquajturave aplikacione t\u00eb decentralizuara (DApp).<\/p>\n

\u00c7far\u00eb \u00ebsht\u00eb blockchain?<\/h3>\n

\nBlockchain (Blloku i t\u00eb Dh\u00ebnave) \u00ebsht\u00eb nj\u00eb zinxhir i blloqeve t\u00eb dh\u00ebnash, t\u00eb lidhura me nj\u00ebra-tjetr\u00ebn n\u00eb nj\u00eb m\u00ebnyr\u00eb t\u00eb caktuar. N\u00eb fillim t\u00eb zinxhirit ndodhet blloku i par\u00eb, i quajtur blloku fillestar (genesis block) ose blloku i gjenez\u00ebs. Pas tij vjen blloku i dyt\u00eb, pastaj i treti dhe k\u00ebshtu me radh\u00eb.<\/p>\n

T\u00eb gjith\u00eb k\u00ebta blloqe t\u00eb dh\u00ebnash automatikisht shum\u00ebfishohen n\u00eb num\u00ebr t\u00eb madh nodash n\u00eb rrjetin e blockchain-it. K\u00ebshtu sigurohet ruajtja e decentralizuar e t\u00eb dh\u00ebnave t\u00eb blockchain-it.
\nMund ta imagjinoni sistemin e blockchain-it si nj\u00eb sasi t\u00eb madhe nodash (servera fizik\u00eb ose virtual\u00eb), t\u00eb bashkuara n\u00eb nj\u00eb rrjet dhe q\u00eb replikojn\u00eb t\u00eb gjitha ndryshimet n\u00eb zinxhirin e blloqeve t\u00eb dh\u00ebnash. \u00cbsht\u00eb si nj\u00eb kompjuter gjigant multi-server, ku nodet e k\u00ebtij kompjuteri (server\u00ebt) mund t\u00eb jen\u00eb t\u00eb shp\u00ebrndara n\u00eb t\u00eb gjith\u00eb bot\u00ebn. Dhe ju gjithashtu mund ta shtoni kompjuterin tuaj n\u00eb rrjetin e blockchain-it. <\/p>\n

Baza e t\u00eb Dh\u00ebnave t\u00eb Shp\u00ebrndara<\/h4>\n

\nBlockchain mund t\u00eb \u062a\u0635\u0648\u0631oni si nj\u00eb baz\u00eb t\u00eb dh\u00ebnash t\u00eb shp\u00ebrndara, e replikueshme n\u00eb t\u00eb gjitha nodet e rrjetit t\u00eb blockchain-it. N\u00eb teori, blockchain do t\u00eb funksionoj\u00eb derisa t\u00eb funksionoj\u00eb t\u00eb pakt\u00ebn nj\u00eb nod q\u00eb ruan t\u00eb gjitha blloqet e blockchain-it.<\/p>\n

Regjistri i shp\u00ebrndar\u00eb i t\u00eb dh\u00ebnave<\/h4>\n

\nBlockchain mund t\u00eb \u062a\u0635\u0648\u0631oni si nj\u00eb regjist\u00ebr t\u00eb shp\u00ebrndar\u00eb t\u00eb t\u00eb dh\u00ebnave dhe operacioneve (transaksioneve). Nj\u00eb em\u00ebr tjet\u00ebr p\u00ebr k\u00ebt\u00eb regjist\u00ebr \u00ebsht\u00eb libri i p\u00ebrgjithsh\u00ebm. <\/p>\n

N\u00eb regjistrin e shp\u00ebrndar\u00eb mund t\u00eb shtohen t\u00eb dh\u00ebna, por nuk \u00ebsht\u00eb e mundur t'i ndryshohen ose fshihen ato. Kjo pamund\u00ebsi arrihet, nd\u00ebr t\u00eb tjera, n\u00ebp\u00ebrmjet p\u00ebrdorimit t\u00eb algoritemeve kriptografike, algoritemeve speciale p\u00ebr shtimin e blloqeve n\u00eb zinxhir dhe ruajtjes s\u00eb decentralizuar t\u00eb t\u00eb dh\u00ebnave.<\/p>\n

N\u00eb shtimin e blloqeve dhe ekzekutimin e operacioneve (transaksioneve) p\u00ebrdoren \u00e7el\u00ebsat privat\u00eb dhe publik\u00eb. Ato kufizojn\u00eb p\u00ebrdoruesit e blockchain-it, duke u ofruar qasje vet\u00ebm n\u00eb blloqet e tyre t\u00eb dh\u00ebnash.<\/p>\n

Transaksionet<\/h4>\n

\nBlockchain ruan informacionin p\u00ebr operacionet (transaksionet) n\u00eb blloqe. N\u00eb k\u00ebt\u00eb m\u00ebnyr\u00eb, transaksionet e vjetra, q\u00eb tashm\u00eb jan\u00eb kryer, nuk mund t\u00eb rikthehen ose ndryshohen. Transaksionet e reja ruhen n\u00eb blloqet e reja, t\u00eb shtuar.<\/p>\n

K\u00ebshtu, n\u00eb blockchain mund t\u00eb regjistrohet n\u00eb m\u00ebnyr\u00eb t\u00eb pandryshueshme e gjith\u00eb historia e transaksioneve. Prandaj, blockchain mund t\u00eb p\u00ebrdoret, p\u00ebr shembull, p\u00ebr ruajtjen e sigurt t\u00eb operacioneve bankare, informacionit mbi t\u00eb drejtat e autorit, historin\u00eb e ndryshimeve t\u00eb pronar\u00ebve t\u00eb pronave dhe t\u00eb ngjashme.<\/p>\n

Blockchain-i Ethereum p\u00ebrmban at\u00eb q\u00eb quhet gjendje e sistemit. Nd\u00ebrsa transaksionet kryhen, gjendja ndryshon nga fillestare n\u00eb aktuale. Transaksionet regjistrohen n\u00eb blloqe.<\/p>\n

Blockchain-et publik\u00eb dhe privat\u00eb<\/h4>\n

\nDuhet theksuar se gjith\u00e7ka e th\u00ebn\u00eb \u00ebsht\u00eb e v\u00ebrtet\u00eb vet\u00ebm p\u00ebr ato q\u00eb quhen rrjete publike blockchain, t\u00eb cilat nuk mund t\u00eb kontrollohen nga asnj\u00eb individ fizik ose juridik, agjenci shtet\u00ebrore ose qeveri.
\nAto q\u00eb quhen rrjete private blockchain jan\u00eb n\u00ebn kontrollin e plot\u00eb t\u00eb krijuesve t\u00eb tyre, dhe aty \u00ebsht\u00eb e mundur gjith\u00e7ka, p\u00ebr shembull, z\u00ebvend\u00ebsimi i plot\u00eb i t\u00eb gjitha blloqeve t\u00eb zinxhirit.<\/p>\n

Aplikimet praktike t\u00eb blockchain-it<\/h4>\n

\nP\u00ebr \u00e7far\u00eb mund t\u00eb p\u00ebrdoret blockchain-i?<\/p>\n

N\u00ebse flasim shkurt, blockchain-i lejon kryerjen e operacioneve (transaksioneve) n\u00eb m\u00ebnyr\u00eb t\u00eb sigurt midis personave ose kompanive q\u00eb nuk kan\u00eb besim n\u00eb nj\u00ebra-tjetr\u00ebn. T\u00eb dh\u00ebnat e regjistruara n\u00eb blockchain (transaksione, t\u00eb dh\u00ebna personale, dokumente, d\u00ebshmi, kontrata, faturat etj.) nuk mund t\u00eb falsifikohen ose z\u00ebvend\u00ebsohen pas regjistrimit. Prandaj, mbi baz\u00ebn e blockchain-it mund t\u00eb krijohen, p\u00ebr shembull, regjistra t\u00eb besuesh\u00ebm t\u00eb shp\u00ebrndar\u00eb p\u00ebr dokumente t\u00eb ndryshme.<\/p>\n

Sigurisht, ju e dini se sistemet e kriptomonedhave krijohen mbi baz\u00ebn e bllokadave, t\u00eb destinuara t\u00eb z\u00ebvend\u00ebsojn\u00eb parat\u00eb e zakonshme t\u00eb papel shume. Parat\u00eb e papel quhen gjithashtu fiat (nga Fiat Money).
\nBllokada siguron ruajtjen dhe pandryshueshm\u00ebrin\u00eb e transaksioneve t\u00eb shkruara n\u00eb blloqe, prandaj ajo mund t\u00eb p\u00ebrdoret p\u00ebr krijimin e sistemeve t\u00eb kriptomonedhave. Ajo p\u00ebrmban t\u00eb gjith\u00eb historin\u00eb e transferimeve t\u00eb fondeve kripto nd\u00ebrmjet p\u00ebrdoruesve t\u00eb ndrysh\u00ebm (akuantave), dhe \u00e7do operacion mund t\u00eb gjurmohen.<\/p>\n

Edhe pse operacionet brenda sistemeve t\u00eb kriptomonedhave mund t\u00eb jen\u00eb anonime, t\u00ebrheqja e kriptomonedhave dhe shk\u00ebmbimi i saj me para fiat zakonisht \u00e7on n\u00eb zb\u00ebrthimin e identitetit t\u00eb pronarit t\u00eb aktivin t\u00eb kriptomonedh\u00ebs. <\/p>\n

Kontratat e quajtura smart, q\u00eb p\u00ebrb\u00ebjn\u00eb softuer q\u00eb funksionon n\u00eb rrjetin Ethereum, lejojn\u00eb automatizimin e procesit t\u00eb n\u00ebnshkrimit t\u00eb marr\u00ebveshjeve dhe kontrollin e p\u00ebrmbushjes s\u00eb tyre. Kjo \u00ebsht\u00eb ve\u00e7an\u00ebrisht efektive n\u00ebse pagesa p\u00ebr marr\u00ebveshjen b\u00ebhet me kriptomonedh\u00ebn Ether.<\/p>\n

Bllokada Ethereum dhe kontratat smart Ethereum, t\u00eb shkruara n\u00eb gjuh\u00ebn e programimit Solidity, mund t\u00eb p\u00ebrdoren, p\u00ebr shembull, n\u00eb fushat e tilla:<\/p>\n