Retention periods

Administrators select a lifetime for records according to their purpose and permission. They examine source records, derived representations, backups, caches, delivered material, later queries. A local buffer and an object condition record serve different purposes.

Interval or purpose	Proposed treatment
Immediate activity	Process selected signals in memory where feasible.
Session reconstruction	Maintain an encrypted local buffer with an explicit expiry.
Approved encounter	Retain the agreed fields and attribution under their scope.
Longitudinal participation	Maintain the agreed continuing participant account with context, correction, access.
Custodial administration	Preserve necessary history, condition, terms, responsibility.
Research	Use the separate experiment's purpose, access, review, retention arrangement.

Staff can clear a raw recording while retaining an approved event with a stated evidentiary limit. They can also remove personal attribution while preserving an authorized repair in the object's biography where appropriate. Withdrawal requires locating derivatives such as embeddings or generated summaries. Researchers examine whether this arrangement preserves useful object memory through memory comparison.