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SHAREChain: Healthcare data sharing framework using Blockchain-registry and FHIR

The amount of healthcare data is increasing. However, issues with unstandardized data formats and the reliability of provenance make the data challenging to share with other institutions. This paper proposes a standards-based sharing framework, SHAREChain, which incorporates two features to deal with reliability and interoperability issues. First, it improves reliability by using the data integrity of a Blockchain-registry and constitutes a Consortium Blockchain Network to share data solely between authenticated institutions. The second feature improves interoperability with standards relating to healthcare data sharing: Fast Healthcare Interoperability Resources and Cross-Enterprise Document Sharing.