nostr and activitypub are like two cities with a narrow bridge in between
nostr:npub1fd0t73r8vn3nqezdg93fyj5x5u79zucf3jaspkc2dy9sjuqx5z8qftjal4 nostr:npub1hspwpfkq7qddnj6h52c03muzgx79l7teeez99n57ys77g4m4vujs3hly9q
It's even worse than that, I've never even heard of Nostr.
Discussion
you can thank nostr:npub1q3sle0kvfsehgsuexttt3ugjd8xdklxfwwkh559wxckmzddywnws6cd26p for that