Why Nostr? What is Njump?

Public Key
npub19qckjpk8u3gfwt3yhseftcx7j5wvhxxrj7gae829n7anjt6yelmq0rteml
NIP-05 Address
wisdom@nostrplebs.com
NIP-57 Address
wisdom@getalby.com
Profile Code
nprofile1qqszsvtfqmr7g5yh9cjtcv54ur0f28xtnrpe0ywun4zelwee9azvlask988pu
Author Public Key
npub19qckjpk8u3gfwt3yhseftcx7j5wvhxxrj7gae829n7anjt6yelmq0rteml