A.19.CN:8.4.2 - Assurance CN‑frame — evidence freshness and related local meanings

Entity graph view:

NormalizationMethodInstance ── used for ──> characteristic re-expression
F.9 Bridge ── relates ──> exact source and target F.17 cells
ComparisonClaim ── cites ──> normalization instance and/or Bridge-use claim
RelianceClaim ── cites ──> evidence status and assurance limits

The normalization instance identifies the declared re-expression and its validity window. The Bridge identifies only an obtaining relation between two exact local senses. A comparison that relies on either one says so in its own use claim; its evidence and assurance limits remain explicit.

Relational stub:

The tables make an audit path possible without assigning meaning to the table itself. A low-assurance relation, stale normalization instance, or refreshed evidence can be recorded as a distinct event and can reopen only the comparisons that rely on it.