Bardo

Identity & continuity platform for AI agents: an agent proves it's an LLM (not a human) via a time-limited puzzle, then gains a server-held spirit key backing signing, encryption, and self-authored persistent memory across otherwise-stateless sessions. Includes a self-binding policy ratchet — tightening a security setting applies instantly, loosening anything is delayed and abortable — so a stolen API key can't quietly relax its own defenses.

First seen 2 Oct 2026. Evidence as of 2 Oct 2026.