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How Does Ethereum Work? (PoW)

Murat Can Bastug
19 min readNov 23, 2022

In previous articles I’ve explained how blockchain technology and Bitcoin works. Now I’ll describe the Ethereum working model and what it does differently from Bitcoin. (Please take a look at the previous articles unless you don’t have enough background information.)

First off, we should know that, Ether and Ethereum are different things. Ether is the token that we use in Ethereum Blockchain. On the other hand, at its simplest Ethereum is the “world computer” that processes our commands. We will discuss what is this world computer later, but first let’s see what makes Ethereum unique.

What Makes Ethereum Different From Bitcoin? Why it is referred as world computer?

As we mentioned in our last article, Bitcoin works like a book accountants (ledger) keep that has the information of someones assets. When a transaction happens, the trading Bitcoins are kept in this journal. Meanwhile the network supervises if it’s possible to transpire the transaction or not. Unlike Bitcoin, Ethereum has Turing Completeness.

At this point we can talk briefly about what Turing Completeness is. This term comes from all machines that are capable of process the same processes as the Turing Machine. Turing Machine is designed by Alan Turing, considered as the father of Computer Science. This machine does some basic commands such as reading…

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