A Practical Universal Consortium Blockchain Paradigm for Patient Data Portability on the Cloud Utilizing Delegated Identity Management

Abstract

This paper presents a blockchain system that exploits the base modular features of the Hyperledger Fabric framework to allow for a new, patient-centric, practical data portability paradigm. The system empowers patients by allowing them to choose the entities they trust in the partially decentralized model, in an attempt to minimize the drawbacks associated with the resultant partial centralization. Data is stored in the cloud, and a fingerprint of the data is stored on the blockchain, allowing for data provenance, integrity, auditability and entity accountability. A simple yet effective method of identity management delegation is detailed, which accounts for and addresses human error in private key management in a practical manner.