distributions: govdata.de, https://numis.niedersachsen.de/csw?REQUEST=GetRecordById&SERVICE=CSW&VERSION=2.0.2&id=D6E7F712-6FA5-485B-9DB8-430B0E30A24F&elementSetName=full, 1
Data license: CC BY 4.0 (portal directory, derived from Dateno); dataset metadata as each portal publishes it · Data source: Dateno, DataPortals.org, data.europa.eu, opendatArchives, and each portal's DCAT catalogue
This data as json