What is Nostr?
stat
npub1aj8…xcwg
2023-02-24 21:52:50
in reply to nevent1q…rlpu

stat on Nostr: subscribe event / request for relays to vend you their information stored about that ...

subscribe event / request for relays to vend you their information stored about that npub

how they store: simple answer, relays can store how ever they want; however i'm assuming they are storing it in a way for efficient lookups on npub key basis
Author Public Key
npub1aj8h9lefxlqe0jcdqvk6ufa6upe6u6jwr0f23ch0z4uxx6e4jh9sqwxcwg