Rahees Ur Rehman and Gurjit Singh Bhathal 2025. Design and Implementation of a Secure Interoperable EHR System Using Ethereum, Hyperledger Fabric, and Decentralized IPFS Storage. International Journal of Computer Sciences and Engineering. 13, 11 (Nov. 2025), 29–36. DOI:https://doi.org/10.26438/ijcse/v13i11.2936.