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Abstract

Phones, devices and technology are now important tools for tracking health, diagnosing illnesses and supporting patients, thanks to IoT. Yet, by increasing the number of IoT devices, organizations now struggle more with security, privacy and making different devices talk to each other. Blockchain which is both decentralized and safe from tampering, offers a viable way to handle these issues. This paper studies how blockchain-supported security techniques are used in healthcare-focused IoT systems. We give an overview of the related research, suggest a new blockchain design for healthcare IoT and discuss its performance in data integrity, managing user access and latency. The research highlights that blockchain has the potential to keep health data secure, accessible and identifiable, as well as comply with regulations.