6.13.2.23 RecordReference

6.13.2.23.1 Purpose

A reference to an exact revision of a record of a declared kind, used as a derivation input.

6.13.2.23.2 Fields

Field	Type	Cardinality	Description
entity_kind	enum	1..1	Values: observation, event, session, resolved_event, period, animal_link, sample, product_material, observation_selection, profile_evidence, feed_coverage.
revision_id	string (uuid)	1..1

6.13.2.23.3 Relationships

Used by

• CanonicalDerivation.inputs

6.13.2.23.4 Rules & constraints

• Resolves to an exact retained row/version of the declared kind, with referential validation; not an arbitrary dangling UUID.
• Immutable source revisions and rule versions make derived datasets reproducible.