Letters from a Blockchain Agnostic (2)

What else can I do besides writing messages on the blockchain ?

In my previous Letter from a Blockchain Agnostic I kept hammering down the basic use of a blockchain:

Blockchain keeps records that cannot be (easily) faked nor destroyed.

As a ‘thought experiment’, I added the example of someone who would like to record their UK visa status on the blockchain (instead of a UK government centralized digital database) to avoid a repeat of the Windrush scandal when

“The only official records of…