nostr:npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5s what are these posts? Lol
Nostr DMs are not private
nostr:npub1ujm8l8mupgwvu8pye2ged78pg3huectlmm6at66x5wffgvl2fkgsygt8l4 just DM'ed nostr:npub1ehg5cqekjlj2jqqhc7z9y2sjq4am42dntahcyn225twv9xdu2m2sl5qe5t
message length: ~40
Discussion
It’s just an automated account showing who is DMing who. The note type for DMs includes the public key of each party and an encrypted payload. There’s a calculation to estimate the size of the message based on the size of the encrypted message.
See here: https://github.com/nostr-protocol/nips/blob/master/04.md
Their challenge is to the way NIP-04 works and the disclosure of the parties involved in the DM.