# What is blockchain?

<mark style="color:green;">**Blockchain**</mark> is a decentralized information recording technology, and for a record to be made in this chain it is necessary that all computers on the network approve the information.

It is a kind of public accounting book, stored on the network and that works as a database that securely and transparently stores everything that is placed in it, not being possible to make changes, only new records.

This technology has gained a lot of relevance for its security.
