Diamond Open Access (OA) refers to an equitable model of scholarly publishing that charges no fees to authors or readers and in which the content-related elements of publication are owned and controlled by the scholarly communities.” (European Diamond Capacity Hub)

We propose a poster presenting the Diamond Discovery Hub (DDH), an online platform developed by the CRAFT-OA (Creating a Robust Accessible Federated Technology for Open Access) project. The DDH contributes to the visibility and recognition of Diamond Open Access publications and the community behind them. It verifies and publicly lists European Diamond Open Access journals and enables data uptake into other indexes and aggregators. Although developed specifically for the European research community, documentation on the platform’s technical infrastructure will be available to global Diamond OA stakeholders who wish to build a similar service in their regions.

Standardising terminology leads to trust in the research community: When a journal is labelled as “Diamond Open Access”, it means more than being cost-free for authors and readers. Journals must meet six community-determined Diamond Open Access criteria (Armengou et al. 2024) to be included in the Diamond Discovery Hub. This standardised verification process and public display of Diamond OA journals will build trust around the term “Diamond” both within and beyond the Diamond community, ensuring that as the Diamond Open Access publishing model grows, it continues to embrace the core values of the community, including autonomy, freedom, care, collegiality, collaboration, equality, diversity, inclusion, integrity, ethics, openness, and transparency.

Visibility leads to discoverability and recognition: When a journal is listed in the Diamond Discovery Hub (DDH), it can potentially also be listed in other indexes and aggregators (such as DOAJ, disciplinary indexes, and the EOSC), if they use the available option of importing the data from the DDH. This is an important step that helps smaller, Institutional Publishing Services ensure the same recognition and acknowledgement (for their authors, publications, and publication channels) as commercial OA publishers, who are often more technically and organizationally adept. Because Diamond OA publications tend to be more linguistically diverse, the DDH also helps improve the overall availability of multilingual scientific knowledge in European languages, which is crucial for reaching decision-makers, professionals, and the general public.