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A large amount of data induced by different practices in communication network, which leads to huge volume of information that is troublesome for certain data processing and detailed functionality, hence to properly handle the collected information the cloud storage will aid and also provide the tools and mechanism required to manage the uncontrollable growth in Big Data. Blockchain technology reduces the dependence on a centralized authority to verify information integrity and ownership, as well as arbitrate transactions and exchange of digital resources, while enabling secure and undisclosed transactions along with agreements directly between interacting nodes. It has key properties, such as immutability, decentralization and transparency that could address urgent health care issues, such as incomplete point-of-care files, and difficult access to information on Patient health. An efficient and effective health care system requires interoperability, which allows software applications and technology platforms to communicate securely and seamlessly, exchange data, and use the exchanged data across health organizations and application vendors. Unfortunately, healthcare today suffers from fragmented data, delayed communications, and disparate workflow tools caused by the lack of interoperability. Blockchain offers the possibility of allowing access to complete and recognized longitudinal medical records with manipulations that are stored in fragmented systems in a secure and Pseudo-anonymous way. The proposed work carried out blockchain implementation in a fog computing environment and it also provided the automatic recovery of invalid chains. This also actuates the thump of those privacy concerns and the recommended solutions, providing forthcoming security related specifications to those liable for plotting, establishing, and sustaining Fog systems.
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