Yeah, that's what I figured. Okay @Michael J @liminal you see the challenge.
We'll need URL aliasing. Nostr nevent IDs are not user-friendly in the least.
/nip-05/book-title ?
For now there's also https://w3.do (if it works)
if you hash the hash and then trim it to 8 bytes and render that as base32 it's pretty concise and almost impossible it will collide... youtube uses a similar scheme, it's 13 characters