Preserve first. Interpret second.

Upstream responses are saved before parsing. Every normalized record retains its source URL, capture time, content hash and ingestion lineage.

Evidence roles

• Observed: directly present in primary or licensed evidence.
• Derived: computed from identified inputs and a recorded method.
• Review needed: the evidence or mapping remains ambiguous.
• Not extracted: a source exists, but the data point is not available yet.

Corrections

New evidence supersedes earlier interpretations without erasing the audit trail. The source object remains immutable and parser/model versions stay attached to derived outputs.