Could a second npub be time-stamped on the time chain, so as to be known as the "master npub" to a primary npub. Then if a primary npub is compromised, followers clients upon seeing a "compromised" note from master npub, flag the primary, an alert user, with similar alert to user upon seeing "new npub ###" note from "master npub"?
Got tgr 6.15am bang on the van this morning.. You can't sleep in your van here. Backpackers or caravan park! Next time $800 fine..
Mind you, this is a council fine. As it is not illegal to sleep in vehicle in Australia..
Total bullshit..
Will just park well away from the popular spots from now on.