What is Nostr?
aaa / AAA
npub1xm5…823w
2023-03-03 01:41:53
in reply to nevent1q…kww0

aaa on Nostr: ...

Client当然知道以前的contacts,而且会把这个信息塞到kind3里面,NIP规定的。
Author Public Key
npub1xm5d2z26twdxeq5wl2cep3mjgy3wz9tk450kp2uyyqlve0cvdg0qgj823w