Appendix 1: Protocols

• Basic -- an airgap quarantine using a singlesig seedsigner, achieves Level 6.
• Advanced -- an airgap quarantine with redundant 2-of-3 multisig, achieves Level 9.
• Ridiculous -- physical and electronic countermeasures in a 3-of-5 multisig, achieves Level 11.
• Ludicrous -- expanded airgap quarantine covering fully refundant read-only nodes and a veritable hero's journey as a signing ceremony, achieves Level 12.

In practice, you should create your own custom protocol using the above (or from the template).