[00:01] located in any one place and is not controlled by anyone in particular. digital form and simultaneously on thousands of special peer-to-peer network.  Every computer connected to this network
[00:13] stores a complete copy of the blockchain.  Such computers are called nodes.  The more blockchain exist, and therefore the more reliable the systems.  This is an important difference from attackers gain access to a bank server, they can change
[00:26] falsify transactions.  In the case of blockchain, even an attack on several nodes will not produce results.  Thousands of other copies will retain the correct information.  For more than 50% of the network nodes would need to confirm the same false version of the data, which is almost
[00:39] member of the blockchain network by installing a special user agreement; this is not necessary.  Typically, those who join the network want to become miners, participants Miners are the ones who process cryptocurrency transactions and maintain
[00:52] sends a transaction, it goes into Pool, a repository of unconfirmed , checking the correctness of transactions, digital signatures, the sender's balance, and so on, and forming a candidate block from them.  For this block to be
[01:04] valid hash, solve a complex cryptographic problem, that is, certain conditions, for example, starting with a specified number of hash, it publishes the block to the network.  Other nodes check it.  If the block
[01:17] add it to their copy of the blockchain. This is how the chain is formed.  For reward and fees for the included transactions.  This mechanism is called Today, there are also alternative methods of consensus.  The most popular
[01:31] need to perform time-consuming calculations. Instead, they stake, freeze randomly selects one of the validators to create the next block. that the more coins a staked validator has, the higher their chance of being
[01:44] chosen, which increases inequality between participants.  M.