부산대학교 도서관

Healthcare organizations are responsible for maintaining and auditing the claims received from policyholders or service providers. The traditional system of storing and auditing claims is centralized to the corresponding organizations. As the centralized auditing system does not allow the integration of the claims among different insurance organizations, an individual policyholder or a service provider may submit claims to more than one insurance organization to get multiple benefits. Multiple benefits can be avoided by collaborating with the authority of different organizations. However, collaborating different organizations raise the privacy and security concerns. Hence, in this article, we propose a quorum-based federated blockchain (QFBM) network, a privacy-preserving decentralized system to integrate health insurance claims of different organizations in a secure manner. The performance of the proposed QFBN framework in avoiding multiple benefits and providing privacy and security which is analyzed in terms of security incidents, mean time to detect, and mean time for vendors incident response are compared with the decentralized frameworks that developed for detecting healthcare frauds using blockchain. Based on the empirical results, it is observed that the QFBN framework provided an environment with better security for exchanging healthcare information.