These functions serve to ensure the authenticity

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Also, the first block of any blockchain is known as the genesis block (coinbase). Only the genesis block has no previous block. In a block, there is an important information known as a hash.

Read carefully, now let's define what a hash is : first of all, a function. The hash function produces a sequence of bits, called a digest . Digest is a string, closely related to some input data.

The term hash is used to identify a fundamental cryptographic function: these functions have the task of encoding data to form a single string of characters.

of data , securely store passwords and sign electronic documents.

What do they have to do with blockchain technology? They albania business email list are an important part, as they are widely used within this technology! In fact, they have the task of making it more secure , and Bitcoin is an example of how hashes can be used to facilitate cryptocurrencies and the complex technology that surrounds them.

Now, how do they work? With complex mathematical and logical processes.

Obviously the purpose of this guide is not to go into the merits of these calculations, but in the next few lines we will see how the mechanism works.

There are nodes in the blockchain that are called “validator nodes” . Each validator node has the task of writing the next transactions and information in the new block.

But who among all the nodes will be able to write the new information?

The one who can solve complex cryptographic calculations before anyone else , thus making the computing power of his devices available.