Recorded per source; the attribution line is shown on every page that uses a value from this source.
Current provenance rows by entity type, and archived documents by page type.
How this source is read.
420 facilities carry at least one current value observed here.
The public index does not filter facilities by source yet. Browse the facilities index — each facility page lists, field by field, which source backs which value, with first/last observation dates and a link to the page it was read from.