A Federated Infrastructure for Discovering, Accessing, and Reusing Research Data in the Historical Humanities

Historical research covers a wide range of disciplines. These disciplines often rely on distributed, heterogeneous and historically evolved sources that are stored across memory institutions, research projects and infrastructure services. The NFDI4Memory consortium seeks to overcome the fragmentation of data and services in the historical humanities by integrating them into a coherent, sustainable and FAIR-oriented digital research environment. At its core is the NFDI4Memory Data Space, a federated, API-driven infrastructure that enables seamless discovery, access and reuse of research data and services across institutional and disciplinary boundaries. Its central knowledge graph (NFDI4Memory Knowledge Graph) indexes research data and institutions with their services. Institutions participating in the Data Space expose their data and services through a standardised set of web-based interfaces. Researchers can interact with the Data Space via a dedicated web interface, a RESTful query API or a SPARQL endpoint, A key component of the Data Space is integrating essential research data services. One of these is RADAR4Memory, a tailored instance of the RADAR repository platform. RADAR4Memory enables sustainable and standards-compliant archiving, publication and dissemination of research data relevant to the historical humanities. By being integrated into the NFDI4Memory data space, RADAR4Memory and its data publications are not only searchable via the KG, but also interoperable with data and services offered by other institutions. The poster presents the Data Space’s design and implementation, its role in harmonising data access and reuse, and the planned evolution of RADAR4Memory as a trusted repository service.