exploring the meanders of the parallax effect, I found in one of my paintings digitized in 33 ways some gifs that in my opinion represent my abstract concept of the bolckchain well The blockchain (literally "chain of blocks") is a shared and "immutable" data structure. It is defined as a digital register whose entries are grouped into "blocks", concatenated in chronological order, and whose integrity is guaranteed by the use of cryptography. Although its size is destined to grow over time, it is immutable since, as a rule, its content once written is no longer modifiable or eliminable, unless the entire structure is invalidated.