authentic source
as defined in Regulation (EU) No 910/2014 of the European Parliament and of the Council of…, Article 3, point (47) (Definitions)
a repository or system, held under the responsibility of a public sector body or private entity, that contains and provides attributes about a natural or legal person or object and that is considered to be a primary source of that information or recognised as authentic in accordance with Union or national law, including administrative practice