Interoperability between Digital Repositories and OpenAlex: Challenges and Strategies

This study evaluates the representativeness of 199,446 Brazilian publications simultaneously present in the repositories indexed by Oasisbr and in OpenAlex, considering the period from 2000 to 2024. A steady increase in the number of publications was observed over the years, except for small drops in 2014 and 2015 and again from 2022 onwards, attributed to the interval between publication, deposit and indexing. Around 7% of publications (13,976 articles) do not have a DOI, highlighting the need for strategies to generate persistent identifiers, especially in areas such as Medicine, Agronomy and Education. The integration of these databases and the adoption of persistent identifiers are fundamental to enriching local repositories, increasing the visibility of Brazilian science and strengthening interoperability and scientific communication in line with the principles of Open Science.