Blockchain for Patient Data Integrity: Decentralised Storage and Retrieval in Modern Healthcare Systems

The research introduces a data sharing and retrieval method within the blockchain framework tailored for smart healthcare systems. This method addresses key challenges in data management, security, and accessibility. Two main components are presented: a distributed, parallel data-sharing scheme and an innovative data retrieval algorithm using the Merkle-Patricia Trie (MPT) and Bloom filters. The proposed healthcare blockchain system showcased improved performance metrics with notable efficiency in upload and download times, latency, delay, and response times. This adaptable approach promises enhanced patient care, medical research, and data analytics, emphasising effective, secure, and patient-centric healthcare data management.