Lineage (data lineage)
The chain that connects every value on a golden record back to its source rows, sources, and the pipeline event that produced the current state.
Data lineage answers "where did this come from?" for any value in your master data. For a single field on a golden record, full lineage includes: which source row supplied the value, which survivorship rule selected it, which entity-resolution run merged the cluster, and what every previous value of this field was.
Without lineage, "trust" is a vibe. With it, "trust" means "auditable." Regulated industries (healthcare, financial services, anything touching PII) must produce lineage on demand for compliance — typically years after the fact.
Lineage is captured by the pipeline; surfacing it is a UI problem. Golden Suite's entity-detail Lineage tab walks the chain from a field back to source rows. The export endpoint produces the same data as a JSON sidecar for downstream audit systems.