aspg-3-3543-1791419556 20261008003236 American Scientific Publishing Group admin@americaspg.com American Scientific Publishing Group Fusion: Practice and Applications FPA 2770-0070 2692-4048 2025 18 2 R. Saranya Research Scholar, Department of Data Science and Business Systems, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India A. Murugan Professor, Department of Data Science and Business Systems, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India For data security and integrity, the sharing of Electronic Health Records (EHRs) utilizing blockchain is becoming a vital vision. However, blockchain and storage wielded in prevailing studies arises security and scalability issues. To overcome these issues, this paper proposes a novel Quadratic Interpolation-based Brownian Motion-Double Elliptic Curve Cryptography (QI-BM-DECC)-centric EHR securing in Hyper-Ledger Blockchain (HLB) with Inter-Planetary File System (IPFS). Primarily, the patient and doctor are registered on the hospital website; then, the keys and QR codes are generated for the patient. After that, the patient login with the credential details, QR code, and the purpose of login. The patient did the online consultation booking after successful login; then, the consultation is done grounded on the time scheduled by the doctor. Afterward, the patient securely uploads the EHR on the HLB with IPFS utilizing QI-BM-DECC. Meanwhile, an attribute-centric hashed access policy is created with the selected attributes. After that, utilizing the Mean Public keys- Digital Signature Algorithm (MP-DSA) approach, the hashed access policy is signed. When a doctor request for EHR access, the signature is verified and the access request is sent to the patient. Now, the doctor downloads the EHR from IPFS after being accepted by the patient. The experiential outcomes exhibited the proposed technique’s dominance over the other mechanisms. 2025 182 199 3543 https://creativecommons.org/licenses/by/4.0/ 10.54216/FPA.180214 https://www.americaspg.com/journal/3/article/3543 https://www.americaspg.com/storage/71738453757.pdf