All key material for the note must be written to the note so that it is fully bearer (otherwise it's invalid and our app will reflect as such). So, just like c

All key material for the note must be written to the note so that it is fully bearer (otherwise it's invalid and our app will reflect as such). So, just like cash you can hand the note to someone and using the app they (1) can tap the note to see the public keys and verify it is loaded and (2) cut the note to claim (the fact that the note is cut is sent to us at which point we respond with a decryption key to unlock the second private key that lives on the note).