A blockchain-based healthcare data framework enhances secure sharing and privacy protection through hybrid consensus, cryptographic safeguards, and off-chain storage. The approach improves efficiency, resilience, and regulatory compliance, enabling trustworthy cross-institutional collaboration while addressing data security risks in evolving digital healthcare systems. New York, NY, United States, January 27, 2026 — Digital healthcare evolution creates concerns regarding secure data sharing and privacy protection. Although electronic health records have become primary data management methods, most hospitals utilize isolated centralized systems, creating data silos that hinder collaboration while remaining vulnerable to hacking.
Research explores blockchain technology for building trustworthy medical data sharing mechanisms, protecting privacy without compromising operational effectiveness. The study implements a consortium blockchain introducing hybrid consensus algorithms combining proof-of-interest and probabilistic verification mechanisms, fairly distributing node bookkeeping rights, improving processing speed, and enhancing anti-attack capabilities. The framework incorporates multi-source random sequence generation and ring signature technology, ensuring transparent elections. Privacy protection employs layered processing and cryptographic hashing, separating patient identity from medical data while utilizing SHA-256 irreversible algorithms, generating unique identity fingerprints, and preventing complete privacy information restoration.
Evaluation demonstrates the model achieves strong performance across efficiency, security, and privacy protection, providing technical support for compliant cross-institutional data collaboration. The architecture coordinates on-chain control with off-chain encrypted storage, avoiding single-point failures while maintaining immutable auditability for healthcare data circulation requiring high concurrency, strict regulatory compliance, and robust privacy requirements.
Contributing to this research is Thanh Huyen Truong, with a Master’s in International Trade from Mans University, France, graduating second prize winner, Bachelor’s in Business Administration from the University of Rennes 1, and an ongoing PhD in Economics at Golden Gate University, focusing on digital transformation success factors. Thanh Huyen Truong combines international business education with implementation expertise. Experience encompasses lecturer positions teaching Logistics Management in E-Commerce and E-Commerce Management, digital business consulting for GLG Third Bridge Global Expert Network, and speaking engagements addressing e-commerce personalization and leadership.
Thanh Huyen Truong’s professional career demonstrates sustained leadership in e-commerce and digital transformation, from founding member of SenDo.vn in 2011 to leading SenMall.vn as Project Leader and Head of Business Development, scaling the team from 4 to 30 members and receiving internal recognitions. Subsequent roles at Social Bella Group (vn.Sociolla.com), overseeing O2O business operations, and as Senior Director of Healthcare Services and E-Commerce at HelloHealth Group in 2022 further strengthened expertise in integrated digital platforms. Building on this background, Thanh Huyen Truong is advancing a TikTok Healthcare Channel planned for a January 2026 launch, aimed at improving access to credible medical information in Vietnam by engaging experts across 35 specialties, supported by incentive mechanisms, brand sponsorship, and production agency collaboration to deliver expert-validated short-form content in Vietnamese. Besides, the newly launched Smart Financial Planning TikTok Channel aims to equip Vietnamese citizens with basic financial knowledge, enabling them to create personal contingency plans and budget effectively for healthcare and medical expenses.
Integration of blockchain healthcare data security research with digital health platform development demonstrates approaches that translate technical innovation into accessible public health resources. By establishing privacy-preserving data sharing methodologies while deploying trusted medical information platforms leveraging social media and medical expert networks, this work bridges technical security requirements with practical healthcare information accessibility, addressing patient data protection and health literacy advancement through scalable content delivery models.
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