nostr:npub1k4qmle0sq0u0fwfz8l7zr85j3ag07z0v3lzj7xrkz5v6sfxdd00ss73lsq nostr:npub1sac955537xel5vs9a2r5knejhkq2l9vljj5agsgwa90pj20xf3xqhxapc0 nostr:npub1kutv9xwy47lkn56whze532eh5duglzd2zcdgv20f2g6thc3amrgqmcc7av I don't understand.