Blockchain-Driven Healthcare Platform With Access-Controlled Record Management

Abstract

Blockchain-Driven Healthcare Platform with Access-Controlled Record Management is a decentralized application designed to enhance the security, privacy, and accessibility of medical records. Traditional healthcare systems rely on centralized storage, making sensitive patient data vulnerable to breaches, manipulation, and unauthorized access. This project utilizes blockchain technology to provide a secure and tamper-proof environment for storing and managing healthcare data. Smart contracts are implemented to enforce access control, allowing patients to grant or revoke permission to doctors and healthcare providers. Medical records are securely stored using decentralized storage mechanisms, while blockchain maintains immutable references to ensure data integrity. The platform integrates Web3 technologies for secure user authentication and seamless interaction with the blockchain network. By eliminating intermediaries, the system improves transparency and trust among stakeholders. This solution demonstrates an efficient approach to managing healthcare data, ensuring confidentiality, integrity, and availability while addressing the limitations of traditional healthcare record systems in a modern, digital environment.

Introduction

This research proposes a Blockchain-Driven Healthcare Platform with Access-Controlled Record Management to provide a secure, decentralized, and patient-centric solution for managing medical records. Traditional healthcare systems rely on centralized databases that are vulnerable to data breaches, unauthorized access, and inefficient data sharing. To address these issues, the proposed platform leverages blockchain technology, smart contracts, and decentralized storage to enhance data security, integrity, transparency, and patient control.

The system enables patients and healthcare providers to authenticate securely using Web3 wallets, with each user assigned a unique blockchain identity. Medical records are stored in InterPlanetary File System (IPFS), while only their cryptographic hashes are recorded on an Ethereum-based blockchain, ensuring data integrity while reducing storage costs and improving scalability. Smart contracts, developed in Solidity, enforce access control by allowing patients to grant or revoke permissions for healthcare providers, ensuring that only authorized users can access sensitive medical information. Every transaction and access request is permanently recorded on the blockchain, providing complete transparency, traceability, and auditability.

The platform is implemented using Ethereum, Solidity smart contracts, Web3 libraries, and a modern web interface that enables seamless interaction with the blockchain. Experimental evaluation demonstrates that the system successfully supports user registration, medical record upload, permission management, and secure data retrieval. Hash verification confirms that records remain unaltered, while unauthorized access attempts are effectively blocked by the smart contract-based security mechanism. Performance analysis shows acceptable transaction execution times and optimized gas consumption, although blockchain-related latency and transaction fees remain practical limitations.

The study concludes that blockchain significantly improves the security, privacy, and reliability of healthcare data management by eliminating reliance on centralized authorities and giving patients complete ownership of their medical records. While challenges such as gas costs, transaction latency, digital wallet usability, and private key management remain, the proposed platform demonstrates the feasibility of a secure and transparent decentralized healthcare system. Future work will focus on optimizing transaction efficiency, improving user experience, strengthening security against phishing attacks, and integrating the platform with existing healthcare infrastructures for real-world deployment.

Conclusion

The proposed Blockchain-Driven Healthcare Platform successfully demonstrates a secure, decentralized, and patient-centric approach to managing medical records. By leveraging blockchain technology, smart contracts, and decentralized storage, the system ensures data integrity, transparency, and controlled access. It effectively addresses the limitations of traditional healthcare systems, such as data breaches and lack of trust. The implementation highlights the feasibility of integrating Web3 technologies into healthcare applications. Despite minor challenges like transaction latency and gas costs, the system performs reliably and provides a strong foundation for secure healthcare data management. Future work can focus on improving scalability and reducing transaction costs by integrating Layer-2 solutions such as Polygon. Enhancing user experience, adding advanced encryption techniques, and incorporating AI-based analytics for medical insights can further strengthen the platform and enable real-world adoption.

References

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Copyright

Copyright © 2026 Dr. D. B. Hanchate, Aditya Gosavi, Sohib Jamadar, Rehan Sayyed. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.