Revolutionizing Healthcare 4.0: The Fusion of Blockchain and IoT in Medicine

The use of Blockchain technology (BCT) has become widespread across several scientific fields and is projected to see substantial growth in the near future. Blockchain (BC) functions as a digital record-keeping system, enabling transactions to occur in a decentralized manner. BC applications are being developed in a variety of areas, including agriculture, healthcare, and the Internet of Things. BCT has recently sparked significant interest in the healthcare industry. It provides trustworthy and convenient services, and the utmost importance to recognise and address the security issues and obstacles that are linked to this innovative approach. This study introduces the Proof-of-Health (PoH) consensus method, which improves the security and efficiency of the integrated system. It also provides a contemporary analysis and overview of the numerous challenges and unresolved issues that conventional security methods have introduced to smart healthcare. Here, the analysis of loT and BC implementation with some different factors is shown. This study also explores the many components used in BC methodologies and incorporates BCT as a feasible security measure. It evaluates possible obstacles in sectors such as healthcare, agriculture, and numerous other domains.