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…
