Is encryption available for this contact.
This can only be true for key-contacts. However, it is possible to have a key-contact for which encryption is not available because we don't have a key yet, e.g. if we just scanned the fingerprint from a QR code.
If the contact is a bot.
Is the contact a key contact.
the contact's last seen timestamp
Is encryption available for this contact.
This can only be true for key-contacts. However, it is possible to have a key-contact for which encryption is not available because we don't have a key yet, e.g. if we just scanned the fingerprint from a QR code.