Metadata that captures the origin, transformation history, and chain of custody of health data, ensuring full traceability and accountability across the data lifecycle. Aligned with the W3C PROV standard, it records the data creator or source, all modifications and processes applied, version history, and timestamps. It is always associated with a timestamp and anchored to the person context, either directly or pseudonymously. It is a mandatory component for EHDS cross-border audit trails.