This presentation, given at WikidataCon 2025, introduces how Wikibase can operate as a data-sharing space connecting rights, communities, and GLAM institutions through federated infrastructures. It demonstrates rule-based rights reasoning combining PROV-O and ODRL, showing how provenance (“who did what”) defines permissions (“what can be done”). Examples include composite digital twins of Livonian folk songs, Spotify-linked use policies, and GDPR-aware data governance. The talk outlines a practical model where Wikibase serves as an incubator for FAIR- and CARE-compliant heritage data, and as a tool that can connect in a datas sharing space setup the databases of archives, libraries, museums, and public platforms as well as private services like rights management agencies or platforms that commercialise music, photos and other cultural objects. You can listen to the livestream of the presentation with explanations here.