{
  "schema_version":1,
  "name":"Track 3 facility-level provenance record",
  "required_fields":["facility_id","facility_name","canonical_source","field_provenance","selected_external_sources","evidence_records","independent_corroboration","conflicting_evidence","verification","immutable_snapshot"],
  "field_provenance_fields":["raw_source","source_publication_date","capture_date","raw_value","normalized_value","transformation","evidence_type","confidence","confidence_semantics"],
  "evidence_fields":["evidence_id","domain","evidence_type","source","capture_date","exact_source_field","exact_source_value","retained_basis","transformation","confidence","evidence_origin"],
  "semantics":{"publication_date_null":"Not captured in current repository; do not substitute dataset update date.","confidence":"Evidence strength label, not probability.","independence":"Metadata-derived corroboration, not proof of source independence.","conflicts":"Automated structured-field comparison only.","snapshots":"Git commits/blob identities provide repository history; external source files are not universally archived."}
}