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What is it based on and how is it built?
Blockchain is a complex technology, but it can be explained simply. Imagine a thousand computers distributed all over the world, each one in the home of a common person, a family, a student ... Individuals who do not know each other and make independent decisions. Well, let's imagine that these computers are part of the blockchain network. They must want to know: why are they part of the network? Well, it is very simple, besides believing it, also money. Each of these computers needs to transmit information or digital currency each time. Small commission. Once you've answered why you want computers to serve the public blockchain network, let's continue to imagine Someone decided to send a cryptocurrency transfer to pay for tickets to the theater function. Same, All these computers, allocate this transfer to spend my commission, but at the same time they also verify commerce Let's illustrate how to verify operations on the blockchain and what are the advantages of distributing information: Yes I send information 1 to thousands of computers and thousands of computers save information 1. Game theory, it will make the remaining 999 computers tell the changed computer "You are wrong, the information Yes 1", the computer after the change will provide the correct information again, 1 ... When we go back to our example purchase tickets, thousands of computers verify that it has been transferred from my account to the account. The transfer of the value of the theater X, if someone wants to change or hack the information, they will have to "change Opinion" to a thousand computers. There are over 40,000 verified transactions per nodes ... no power I can handle the calculations. In other words, the solid foundation on which the blockchain stands.