kurt on Nostr: nprofile1q…unzc2 nprofile1q…nd605 What does 5150 mean in this context?nprofile1qyt8wumn8ghj7un9d3shjtnyd968gmewwp6kytcqyqcguy5ts6n37vuz6nwp6as6qtasjt49jjt6punw9ncnj2ughxmpjrunzc2 (nprofile…nzc2) nprofile1qyt8wumn8ghj7un9d3shjtnyd968gmewwp6kytcqyq900quk6vql6dwf6lrxaytyernt33x27xzcdwdgxmrrf7r07twsj9nd605 (nprofile…d605) What does 5150 mean in this context?