This poster explores strategies to improve the usability and accessibility of mathematical research within the European Open Science Cloud (EOSC) by focusing on high-quality metadata enrichment. Mathematicians often face challenges in discovering, sharing, and reusing research outputs due to sparse or inconsistent metadata. Key aspects include: Integration with existing platforms (zbMATH, swMATH) supported in MaRDI, enhancing metadata interoperability and resource sharing with PIDGraph (DataCite), RDGraph (OpenAIRE), and RSAC (Software Heritage). Software long-term preservation through the RSAC–swMATH subcomponent. Incorporation of specialized services like the MSCR (Metadata Schemas and Crosswalks Registry) and the PIDMR (PID MetaResolver) to support identifiers and metadata crosswalks. Mathematical knowledge graph integration within the DTR (Data Type Registry).