Maintaining data integrity in electronic health records with hyperledger fabricKask, Marten; Klementi, Toomas; Piho, Gunnar; Ross, PeeterHEDA 2023: International Health Data Workshop : proceedings of the 3rd International Health Data Workshop (HEDA 2023), co-located with Software Technologies: Applications and Foundations (STAF 2023) : Leicester, United Kingdom, July 21, 20232023 https://ceur-ws.org/Vol-3440/ Conference Proceedings at Scopus Article at Scopus