Background notes

Philosophy, measurement, and benchmark notes.

This chapter collects background interpretive material, a related measurement note on durable records and redundant objectivity, and a raw-fragment benchmark for QD/SBS redundancy tests. These notes remain separate from archive validation, review status, and claim-family upgrades.

Interpretive scope

Interpretive frame and evidential constraints.

Phase-background realism is presented as a philosophy-of-physics note. Its use is constrained by ordinary-theory recovery, failed public checks, blocked inputs, and case-level retirement conditions.

Review relation

Relation to the status surfaces.

The accompanying status and audit pages determine whether any claim-family wording is narrowed, blocked, or retired. The notes do not change archive validation status by themselves.