R. Palaniyappan, and D. Sasikala. 2026. “ENHANCED CRYPTOGRAPHIC INTEGRITY: INTEGRATING MODIFIED SHA-256 FOR SECURE DISTRIBUTED LEDGER-BASED MEDICAL RECORD SYSTEMS”. International Journal of Computer Information Systems and Industrial Management Applications 18 (18s):613-26. https://doi.org/10.70917/ijcisim-2026-4890.