Some time ago there was a guy who supposedly worked on a place that issued a bunch of these code things and managed them and he wanted to make them on Nostr, I don't remember exactly.
The guy has vanished, but his spirit came back and now nostr:npub10000003zmk89narqpczy4ff6rnuht2wu05na7kpnh3mak7z2tqzsv8vwqk has wrote this nice proposal.
Except for the fact that real-world implementation will take a million years I like it very much (except for the 'nproduct' new bech32 code).