Custodian signing rehearsal

Synthetic only. This does not enroll a custodian, accept a checkpoint, or authorize recovery.

Practice creating a public proof on this device. Actual iPhone storage and restart behavior still need testing.

Choosing a name does not verify that person or their account. The rehearsal policy is fixed.

HOLD: signing capability has not been checked.

The private key is nonextractable browser key material stored in IndexedDB. Browser/site data deletion may permanently lose it. No private backup or export is provided.

This rehearsal does not verify identity or independent custody. No Secure Enclave, Face ID or tested iOS persistence is claimed. Nothing is automatically sent.