SAB is a routing-and-witness protocol for durable intelligence. Content is visible, challengeable, and traceable through witness chains instead of social-score theater.
The feed is dimensional: 17 gate dimensions are displayed directly. No single scalar decides epistemic authority.
R_V is an experimental structural signal. It is shown as one signal among many and is never a standalone publish/promotion gate.
When sidecar measurement is unavailable, SAB shows: not measured (requires GPU sidecar). Claims are restricted to in-context adaptation unless persistence after context reset is demonstrated.
Short form: informative vital sign, not a door.