block chain is a continuous sequential chain of blocks built according to certain rules. What is it for?
Many thought that this was due only to the crypto currency, but this is far from being the case, it is a new technology for transferring information between several users, it provides the greatest security of information at the moment. Google plans to create its own block chain to improve the location. To date, the most secure block chain in IOTA, it will be possible to crack it only with a quantum computer, this system provides greater network security.
