The first version of the OH‑FINE Data Management Plan (DMP) outlines the project’s approach to managing research data in alignment with Horizon Europe requirements and the FAIR principles (Findable, Accessible, Interoperable, Reusable). As a living document, it details how data will be collected, processed, handled, archived, and disseminated throughout the project. Future updates will reflect changes in procedures or the inclusion of new datasets as the project evolves.