BLOKCHEIN ON FINGERS

Bitkoyn has become a truly popular thing over the past few years, but it's not so easy to explain the principle of its operation. Especially it concerns such a component of it as a block. But we will try to do this, moreover, with the help of simple examples.
 
Blokchain can be described as a kind of diary, records in which it is impossible to falsify. How can I make such a diary? The most primitive way is to make it so that each line with a record using a specialized program is converted into a 32-digit hash-abracadabra. Moreover, if at least one letter changes in the record, then its hash also changes, and in the most radical way. However, this is not all - the hash of each previous line also affects the hash of the next, which complicates the forging process. However, in order to protect the system even more reliably, the following layer is added: to each entry in this diary, now a certain number is added at the end, but it is selected so that at the end of each hash there are two zeros.
 
Thus, the only way to forge a record in a diary is to trivialize the numbers until the desired hash appears. However, the process of keeping a diary does not stop there: imagine that two people are leading the diary and they simultaneously pick up the nonce - the one who picked the right one, makes a record. Since the two together are selected much faster, the task was decided to complicate - now the hash must end in three, not two zeros. Here is a diary and is a blockbuster where as two people we have a bunch of connected computers, and computing these hashes is so complicated that even computers have a hard time.
 
With the help of such a diary, you can create very entertaining pieces like bitkoyna, where each entry appears as "send such and such a sum from such and such to such a purse." Since this diary does not lend itself to falsification and it contains information about all translations, then, accordingly, at any time you can find out how much money on this or that purse. And that in bitkoyne any money is circulating, bitkoyn is arranged in such a way that each of the records ends with the phrase "to make so many coins and transfer them to me", and by "me" is meant the user who first selects the nonce providing a hash with the required number of zeros at the end. Thus, you can build various interesting systems, making notes like "who can solve the equation first, he will get X coins"
 
At the end of the day it is necessary to keep in mind the fact that the blockade, with all its splendor, is just a diary with all that is going on and no global problems, it can not be solved.