Do sada ste vjerojatno već znali za Bitcoine^(Bitcoins) koji su bili sve vijesti i najveća je kriptovaluta do sada. Isto tako^(Likewise) , imamo i druge kriptovalute koje stvaraju mnogo buke, a jedna od njih je Ethereum . Ako je Bitcoin kralj svijeta^(World) kriptovaluta , onda je Ethereum kraljica!

Ethereum kriptovaluta je trenutno druga najvrjednija kriptovaluta^{(Cryptocurrency)} na tržištu. Pokrenut je prije dvije godine, a vjeruje se da će se u 2018. o njemu najviše pričati kada se slegne uzbuđenje oko Bitcoina^(Bitcoins) .

Pa da vidimo što je Ethereum kriptovaluta, kako funkcionira i po čemu se razlikuje od Bitcoina^(Bitcoin) .

Što je Ethereum kriptovaluta

“ Ethereum je decentralizirana platforma koja pokreće pametne ugovore” – ovo je savršeno objašnjenje. Ako ih usporedite s Bitcoinima^(Bitcoins) , obje su platforme otvorenog koda temeljene na Blockchain tehnologiji^{(Blockchain technology)} .

Ethereum je baziran na Blockchainu

Ethereum sadrži blokove podataka koji su transakcije i pametni ugovori. Blokove stvaraju ili miniraju neki sudionici i distribuiraju drugim sudionicima koji ih provjeravaju.

Ethereum je poput Bitcoina^(Bitcoin) javna mreža bez dopuštenja. To znači da svatko može preuzeti ili napisati softver za povezivanje s mrežom i početi stvarati transakcije i pametne ugovore, provjeravati ih i rudariti blokove. Nema potrebe za prijavom ili prijavom u bilo koju drugu organizaciju. Obojica su smanjili posrednika (banke) u svojim financijskim transakcijama. Bez posrednika također znači smanjene troškove!

PoW (Proof of Work) Ethereuma

I u bitcoinu i u Ethereumu^(Ethereum) , sudionici rudarenja formiraju valjani blok tijekom transakcija trošeći električnu energiju kako bi pronašli rješenja za matematičku zagonetku. Ali Ethash , koji je Ethereumov PoW ^(Ethereum)matematički^(PoW) izazov, radi malo drugačije od Bitcoina. Omogućuje korištenje uobičajenog hardvera za rudarenje.

U budućem izdanju softvera Ethereum pod nazivom Serenity , postoji plan da se on premjesti sa skupljeg rudarenja Proof-of-Work na energetski učinkovitiji Proof-of-Stake protokol pod nazivom Casper .

Ethereum nudi decentraliziranu računsku platformu

Za razliku od Bitcoina^(Bitcoin) koji koristi blockchain tehnologiju za bitcoin plaćanja, Ethereum koristi decentralizirane računalne platforme. Decentralizacija^{(Decentralization)} je važna jer eliminira pojedinačne točke neuspjeha ili kontrole. Gotovo je nepraktično stvarati unutarnje dosluhe ili vanjske napade. Postoje mnoge aplikacije koje djeluju kao treća strana koja će vas povezati s nekim drugim na temelju neke logike. Mnogi naši centralizirani sustavi mogli bi se izgraditi na ovoj decentraliziranoj platformi koja čini te transakcije nepovjerljivim.

Značaj ETRA

Ethereumov^(Ethereum) token se zove Ether , skraćeno u ETH . Ovo je Ethereumova^(Ethereum) kriptovaluta kojom se može trgovati za druge kriptovalute ili druge suverene valute, baš kao i BTC . Vlasništvo nad tokenom kriptovalute^(Ethereum) Ethereum “ Ether ” prati se na Ethereum blockchainu slično kao vlasništvo bitcoina koje se prati na Bitcoin-ovom blockchainu. Tehnički, međutim, njihovi su načini praćenja različiti.

Ethereum virtualni stroj (EVM)

Svako računalo za rudarenje pokreće pametni ugovor na svom računalu koristeći svoj Ethereum Virtual Machine ( EVM ) kao dio procesa rudarenja i dolazi do zaključka o izlazu. Teoretski, svako računalo na mreži Ethereum doći će do istog zaključka, ako sve prođe glatko jer imaju isti ugovorni kod s istim dostavljenim informacijama.

Kada je blok miniran, pobjednički rudar će objaviti blok ostatku mreže. Ostala računala će potvrditi da su dobili isti rezultat, a zatim će dodati blok svojim vlastitim blockchainima. Ovako se ažurira stanje Ethereumovog blockchaina.

Što su pametni ugovori

Valuta Ethereuma – Ether^{(Ethereum – Ether)} , radi na sofisticiranim pametnim ugovorima. Pametni ugovori^{(Smart Contracts)} samo su fraza koja se koristi za opisivanje računalnog koda koji može olakšati razmjenu novca, sadržaja, imovine, dionica ili bilo čega od vrijednosti. Na blockchainu ovi mali ugovori rade poput samostalnog računalnog programa koji se automatski izvršava kada se ispune specifični uvjeti. Oni rade na isti način kao što su programirani bez ikakve mogućnosti cenzure, zastoja, prijevare ili uplitanja treće strane.

Ovi pametni ugovori koriste sustav if : then koji navodi da se Etherom^(Ether) može trgovati samo ako se mogu ispuniti specifični uvjeti. To je razlog zašto dobiva tako veliki zamah u tako kratkom vremenskom razdoblju. Bez sumnje analitičari sugeriraju da će se njegova vrijednost stalno povećavati u nadolazećem vremenu.

Kako pametni^(Smart) ugovori pomažu pokretanju Ethereuma^(Ethereum)

Pametni ugovori su zapravo mali računalni programi koji su pohranjeni na Ethereumov blockchain. Mogu se aktivirati ili pokrenuti financiranjem s nekim ETH -om .

U Ethereumu^(Ethereum) se pametni ugovor može stvoriti stvaranjem novog računa s nekim kodom u njemu i zatim ga učitavanjem na Ethereum blockchain u transakciji. Nakon^(Post) prijenosa, Ethereum blockchain postaje više poput jukeboxa. Kad god se Ethereum^{(Whenever Ethereum)} treba pokrenuti, kreirat će se transakcija koja će sadržavati uplatu ETH na ugovor zajedno s još nekim informacijama ako je ugovoru potrebno.

EVM je Turing kompletan softver koji radi na Ethereum mreži. Omogućuje svakome da pokrene bilo koji program, bez obzira na programski jezik koji ima dovoljno vremena i memorije. Proces izrade blockchain aplikacija postao je učinkovitiji i lakši nego prije. Ethereum omogućuje razvoj tisuća različitih aplikacija na jednoj platformi umjesto izgradnje potpuno originalnog blockchaina za svaku novu aplikaciju.

Ethereum ima manje vrijeme bloka i kraće blokove

Ethereum ima manje vrijeme bloka od 14 sekundi u usporedbi s 10 minuta bitcoina. To ubrzava Ethereum transakcije koje se bilježe u Ethereumov^(Ethereum) blockchain.

Veličina bloka u Bitcoinu^(Bitcoin) je u bajtovima, dok se veličina bloka Ethereuma temelji na složenosti ugovora koji se pokreću – poznato je kao ograničenje plina^(Gas) po bloku, a maksimum može neznatno varirati od bloka do bloka.

Što se tiče podataka, od sada je većina Ethereum blokova manja od 2 KB dok je veličina bitcoin bloka trenutno 1 MB.

Da zaključimo^{(To conclude)} , može se reći da s platformom prilagođenom korisniku Ethereum nudi snagu blockchain tehnologije. To ubrzava decentralizaciju svjetskog gospodarstva. Ova decentralizirana aplikacija može poremetiti stotine industrija uključujući financije, nekretnine, akademiju, osiguranje, zdravstvenu skrb i javni sektor među mnogim drugim.

But, where there is Success, there lies a RISK too!

Nedostaci Ethereuma:^{(Disadvantages of Ethereum:)}

• To je platforma i neće biti učinkovita kao druga kriptovaluta. To nije knjiga; umjesto toga, djeluje kao knjiga/superračunalo/generator pametnih ugovora/itd. za puno više korisnika. Iako daje fleksibilnost, ali ga čini manje optimiziranim za jednu upotrebu.
• Ako prijelaz s Proof of Work na Proof of Stake ne prođe dobro, mogu se pojaviti neki kritični problemi u arhitekturi koji bi čak mogli dovesti do pada sustava.

Etherium has hit a high price of $900, but some say – there is still a bubble around Ethereum. Investing into it for long-term can be a risky play.

Da biste saznali više o Ethereumu, posjetite ethereum.org .

What is Ethereum cryptocurrency and how does it work?

Βy now, you рrobably know about Βitcoins which have been making all the newѕ and is the biggest cryptocurrency so far. Likеwise, we have other crуptocurrencies which are creating a lot of buzz, and one of thеm is Ethereum. If Bitcoin is the king of the cryptocurrency World, then Ethereum is the queen!

Ethereum cryptocurrency is currently the second most valuable Cryptocurrency on the market. It was launched two years ago, and it is believed, that in 2018 it will be the most talked about once the excitement around Bitcoins settles down.

So let us see what is Ethereum cryptocurrency, how it works and how it differs from Bitcoin.

What is Ethereum Cryptocurrency

“Ethereum is a decentralized platform that runs smart contracts” – this is the perfect explanation of it. If you compare them to Bitcoins, they’re both open-source platforms based on the Blockchain technology.

Ethereum is Blockchain based

Ethereum contains blocks of data that are transactions and smart contracts. The blocks are created or mined by some participants and distributed to other participants who validate them.

Ethereum like Bitcoin is a public, permissionless network. It means anyone can download or write software to connect to the network and start creating transactions and smart contracts, validating them, and mining blocks. There is no need to log in or sign up with any other organization. They both cut down the middle man (banks) in their financial transactions. No middleman also signifies reduced costs!

PoW (Proof of Work) of Ethereum

In both bitcoin and Ethereum, mining participants form a valid block during transactions by spending electricity to find solutions to a mathematical puzzle. But Ethash which is Ethereum’s PoW math challenge works a bit differently to Bitcoin’s. It allows common hardware to be used for mining.

In a future release of the Ethereum software called Serenity, there is a plan to move it from electricity-expensive Proof-of-Work mining to a more energy-efficient Proof-of-Stake protocol called Casper.

Ethereum offers decentralized computational platform

Unlike Bitcoin that uses blockchain technology for bitcoin payments, Ethereum uses decentralized computational platforms. Decentralization is important because it eliminates single points of failure or control. It is almost impractical to make internal collusion or external attacks. There are many applications that act as the third party to connect you with some other on the basis of some logic. Many of our centralized systems could be built on this decentralized platform making those transactions trustless.

Significance of ETHER

Ethereum’s token is called Ether, shortened to ETH. This is an Ethereum’s cryptocurrency that can be traded for other cryptocurrencies or other sovereign currencies, just like BTC. The ownership of Ethereum cryptocurrency token “Ether” is tracked on Ethereum blockchain similar to the bitcoin ownership being tracked on Bitcoin’s blockchain. Technically though, their ways of tracking are different.

Ethereum Virtual machine (EVM)

Each of the mining computer runs the smart contract on their computer using their Ethereum Virtual Machine (EVM) as part of the mining process, and come to a conclusion about the output. Theoretically, each computer on the Ethereum network will come to the same conclusion, if all goes smoothly because they are running the same contract code with the same supplied information.

When a block is mined, the winning miner will publish the block to the rest of the network. The other computers will validate that they get the same result, then add the block to their own blockchains. This is how the state of Ethereum’s blockchain gets updated.

What are Smart Contracts

The currency of Ethereum – Ether, runs on sophisticated smart contracts. Smart Contracts is just a phrase used to describe computer code that can facilitate the exchange of money, content, property, shares, or anything of value. On blockchain, these small contracts run like a self-operating computer program that automatically executes when specific conditions are met. They run in the same way as programmed without any possibility of censorship, downtime, fraud or third-party interference.

These smart contracts use an if:then system specifying that Ether can only be traded if specific conditions can be met. This is the reason why it is gaining such a huge momentum in such a short period of time. No doubt analysts are suggesting that its value will increase steadily in coming time.

How Smart Contracts aid to run Ethereum

Smart contracts are actually little computer programs that are stored on Ethereum’s blockchain. They can be activated, or run, by funding them with some ETH.

In Ethereum, a smart contract can be created by creating a new account with some code in it and then uploading it to the Ethereum blockchain in a transaction. Post upload, Ethereum blockchain becomes more like a jukebox. Whenever Ethereum needs to run, a transaction will be created containing a payment of ETH to the contract along with some more information if the contract needs it.

EVM is a Turing complete software that runs on the Ethereum network. It enables anyone to run any program, regardless of the programming language given enough time and memory. The process of creating blockchain applications have become more efficient and easier than before. Ethereum allows developing thousands of different applications on one single platform rather than building an entirely original blockchain for each new application.

Ethereum has smaller block time and shorter blocks

Ethereum has smaller block time of 14 seconds as compared to 10 minutes of bitcoin. This speeds up Ethereum transactions being recorded into Ethereum’s blockchain.

The block size in Bitcoin is in bytes while Ethereum’s block size is based on the complexity of contracts being run – it’s known as a Gas limit per block, and the maximum can vary slightly from block to block.

Data-wise, as of now, most Ethereum blocks are under 2 KB in size while bitcoin block size is currently 1 MB.

To conclude, it can be said that with a user-friendly platform Ethereum is offering the power of blockchain technology. It is speeding up the decentralization of the world economy. This decentralized applications can disrupt hundreds of industries including finance, real estate, academia, insurance, healthcare and the public sector amongst many others.

But, where there is Success, there lies a RISK too!

Disadvantages of Ethereum:

• It is a platform and won’t be as effective as another cryptocurrency. It is not a ledger; instead, it acts as a ledger/supercomputer/smart contract generator/etc. for a lot more users. Though it gives the flexibility but makes it less optimized for one single use.
• If the transition from Proof of Work to Proof of Stake doesn’t go well off, some critical issues may arise in the architecture that could even lead to the crash of the system.

Etherium has hit a high price of $900, but some say – there is still a bubble around Ethereum. Investing into it for long-term can be a risky play.

To know more about Ethereum, visit ethereum.org.

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