Top task for the idea of working with authorities using VIAF data for verification.
- identify VIAF posts that have a SELIBR but there is no Wikidata item with this VIAF (possibly ranked by the number of other identifiers in order to find the most important ones). Create new items based on that list.
- identify VIAF posts that have a SELIBR and there is a Wikidata item with this VIAF but without SELIBR. Add SELIBR to those items.
- identify Wikidata items that have a SELIBR but no VIAF. Add VIAF to those items.