There is often a tendency to associate the term blockchain with the cryptocurrency phenomenon alone, leaving aside a whole series of possible practical applications that this technology can guarantee.
The term blockchain refers to a shared and immutable structure; a distributed registry whose integrity is guaranteed by the use of encryption.
What is recorded on blockchain can no longer be modified or deleted, and remains written forever. Not only that, with the use of public technology, anyone (in the world) with an internet connection will be able to consult the registration.
In a world dominated by data, transaction IDs, cryptovalues and certifications technologies like blockchain represent a real revolution.