nostr:npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m consider adding PoW for public keys on Bitchat.

reference code in Go:

https://github.com/1l0/nostrlib/commit/349cb8d9c01a7067a852f613702ac2223bf92d6d

nostr:nevent1qvzqqqqqqypzq0raz2nv9acla89z2fepdaff5ymmkrewkqvtrresqqun8w2nyqf7qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qgswaehxw309ahx7um5wghx6mmd9uqzqxchwyjeysqs3cf64q0n5etqyvf3rdf966tr083387gacurc2pwlrvudg0