Block and chain, as the word suggests, a series made of blocks! So we know what are these blocks. Blocks really are a kind of database! People who work with computers know databases well! And for people that do not know, if we say in simple language, then the database https://www.maanation.com/post/358020_block-and-chain-since-the-word-suggests-a-sequence-made-of-blocks-so-we-determin.html