• Vanita Ganpatrao Sonkamble
• Suvarna D. Pingle
• M. M. Dhobe

Health related data for any patient is very sensitive. The traditional approach to maintain such data is to maintain the records in physical format. With digital explosions these records are now being maintained digitally through Electronic Health Records (EHRs). These records are stored and maintained on the central server storage. Such centralized storage approach challenges privacy, unauthorized access and the availability of health data. Blockchain technology is one of the solutions to provide secured access with preservation of the privacy of EHR. A brief literature survey has been carried out in this research to indicate the benefits of the usage of blockchain technology in the healthcare domain. In this research Secured Optimized Network using Blockchain (SONBlock) is proposed for EHR management system with secured approach. The study also proposed EHR partitioning as off-chain and on-chain. The identity attributes of the patient are stored in blockchain ledger as on-chain data. Other health data is stored on the distributed storage i.e. InterPlanetary File System (IPFS) as off-chain. There are different blockchain platforms which can be used in healthcare systems. SONBlock is implemented using Ethereum and Hyperledger Fabric. The research has compared the Ethereum and Hyperledger Fabric using the metrics i.e. global availability, smart contract flexibility, decentralization, cost, scalability, latency, throughput, and tokenomics. The brief comparative analysis indicates that Ethereum usage is significant to achieve the metrics i.e. global availability, smart contract flexibility, decentralization, and tokenomics. Hyperledger Fabric usage has shown good impact for the cost, scalability, latency, and throughput.

Vanita Ganpatrao Sonkamble1, Dr. Vilas Kamble1, Suvarna D. Pingle1,

"SONBlock: Blockchain based EHR Management with Comparative Analysis of Ethereum and Hyperledger Fabric", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 11, page no.e318-e330, November-2024, Available :http://www.jetir.org/papers/JETIR2411436.pdf

"SONBlock: Blockchain based EHR Management with Comparative Analysis of Ethereum and Hyperledger Fabric", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 11, page no. ppe318-e330, November-2024, Available at : http://www.jetir.org/papers/JETIR2411436.pdf