ehc:evidence-remove
ehc family
Remove one artefact from an EHC case's evidence locker, or restore it (removed:false). Owner-only: authority is the caller's control of the case's group, read off the attested caller and never the payload. Writes one row to an append-only log — nothing is deleted, and every page says how many items the owner removed. Takes an exact evidence id from ehc:evidence; never matches a caption
- Effect
- signal
- Fire-and-forget — the call returns once accepted, not once done.
- Caller
- session
- The class of authority the caller must already hold, decided from the attested context with no round trip.
- Cost
- free
- What one call costs, so you can budget before acting.
- Reversible
- yes
- The effect can be undone by a later call.
- Idempotent
- yes
- Safe to retry as-is.