Every value on this operational surface comes from a real ERCOT hub observation or from HALØ's deterministic processing of those observations. The clone rebuilds its full model context from durable observations after every restart, serves the last valid assessment through source outages, and repairs gaps when source history becomes available. The Sacred engine remains the independent chain of record; this surface is explicitly the availability-first operational assessment.

Wₜ is the causal surprisal of the arriving four-hub observation under the current address system. It is real context, not a firing condition. Synthetic market data is not served on this production surface.