FIDELIS Network for TDRs
Strengthening the backbone of open science
Trustworthy Digital Repositories (TDRs) are a critical pillar of the research ecosystem, ensuring secure and sustained access to digital research objects. They serve as essential infrastructure in the research data lifecycle, enabling researchers to share, access, and reuse data and other digital objects while ensuring the long-term preservation of research outputs. As the European Open Science Cloud (EOSC) continues to expand, the role of TDRs grows ever more significant, facilitating active preservation and ensuring that digital research objects maintain their FAIR (Findable, Accessible, Interoperable, and Reusable) characteristics over time.
Become a provisional FIDELIS network member
Building a resilient and inclusive network
From day one, the FIDELIS project is anchored in a diverse and extensive network of repositories, spanning multiple disciplines and geographic regions. This solid foundation enables the project to pilot its initiatives in real-world settings, engaging with early adopters who will play a key role in shaping and expanding the FIDELIS Network. The project’s hands-on, iterative approach ensures that best practices are tested, refined, and widely adopted.
To support repositories in their transition toward trustworthiness and FAIR compliance, FIDELIS will develop common frameworks for repository policies and workflows. These frameworks will provide guidance and structured support, helping repositories implement and sustain best practices in data management. Furthermore, a peer-to-peer support system will facilitate knowledge exchange and capacity building, ensuring that TDRs can learn from one another’s experiences and challenges.
Moreover, FIDELIS prioritises co-creation, actively engaging repositories in shaping the Network. By maintaining a user-centric approach, the project ensures that the Network evolves in alignment with repository needs and priorities. Repository owners will be invited to provide input on requirements and feedback early on and during the integration process.
The FIDELIS Network is having its introductory webinar!
The FIDELIS Network will be based on the needs of European digital repositories, offering a range of support and training opportunities in their work on becoming trustworthy and sustainable. If you want to learn how the FIDELIS Network can help your repository, join the first introductory webinar to the FIDELIS Network.

A high-Impact and long-term vision of FIDELIS
FIDELIS is driven by a long-term vision to build a healthy, vibrant, and self-sustaining network of TDRs that will strengthen the EOSC ecosystem. With over 200 digital repositories already connected through its partners, the project will leverage these existing networks to engage repositories across diverse disciplines, including Geosciences, Oceanography, Earth Science, Social Sciences and Genetics.
Beyond building expanding the network, FIDELIS will foster harmonization and interoperability among repositories, laying the foundation for an EOSC federation of TDRs. Through a structured training and support program, the project will also enhance the skills and capabilities of repositories, ensuring their long-term sustainability and increasing their impact within the broader research infrastructure.
Expert Curation Network - EOSC EDEN