Sergio Santamarina works as a librarian in Argentina at the National University José Clemente Paz (UNPAZ) and has a focus on open science practices and challenges in Latin America. Together with Jo, he explores issues around open access publishing requirements, the cost barriers for obtaining Digital Object Identifiers (DOIs) in Latin American universities, and the importance of decentralized networks and persistent identifiers in research. The conversation concludes with an exchange of their views on the role of libraries in promoting open science, the need for diverse regional databases, and the importance of community-based approaches to knowledge sharing and infrastructure development.Read more about this episode at https://access2perspectives.org/2025/07/a-conversation-with-sergio-santamarina/ Read the book chapter mentioned in this episode:Santamarina, S. (2025). Persistent Identifiers: The Achilles' Heel of Open Science. In Conocimiento como bien común. Aportes desde América Latina y el Caribe a la ciencia abierta : Premio "Dominique Babini" (English version of the original chapter in Spanish, 1st ed., pp. 253–286). CLACSO. AmeliCA. La Referencia. Redalyc. https://doi.org/10.5281/zenodo.15803055 At Access 2 Perspectives, we provide novel insights into the communication and management of Research. We equip researchers with the skills and enthusiasm to pursue a successful and joyful career. Learn more at https://access2perspectives.org