Can users submit more work somehow to re-up old notes that fall below the new threshold? This does seem like a powerful anti spam / spam deletion tool though. #[4]​ I saw PoW on notes sometimes in amethyst, thoughts?

Relays could advertise their current minimum PoW. Clients then pick the relays with cheapest PoW. This has the effect of distributing demand evenly across the network. Should I write a NIP? Basically this idea:

Hashcash Auctions for Decentralized Resource Allocation

Chris McCormick - News

Hey, any thoughts in using RandomX (CPU-only POW algo) for these kind of things? So that in long term more clients can provide their own POW and not have ASICs messing things up.

GitHub

RandomX/doc/design.md at master · tevador/RandomX

Proof of work algorithm based on random code execution - tevador/RandomX