Modeling of data storage using blockchain technology

The main goal of the work is to develop decentralized data storage model using distributed data systems and blockchain technology. The Main tasks were to analyze articles and information online, create data storage model and start the implementation of the model. In the research part, I analyzed the currently used health care data storage systems and current issues. The collected resources from patients are stored in many separate databases. Customer information is usually not shared with private and other clinics. Another problem is that patient data is stored on internal hospital servers or cloud storage and clients do not directly control their information. A person cannot be assured that his data will not be seen without his consent. Another major part of the analysis was the use of blockchain technology in application development. Advantages of the blockchain: reliable distributed system, increased stability, better security and financial efficiency. NEM blockchain provides a service platform with many useful features. A solution is created with NEM multi-signature accounts that is freely evolving and adaptable for any type of information control. In the created model, the data in the NEM blockchain is not stored. Only the encoded contents of the files are stored there. The blockchain is not loaded with unnecessary information and this does not slow down its operation. Full control of the data by the owner. When the data is made public on the network, it is protected in such a way that the next time someone wants to access it, they will have to get the owner’s consent. The developed model can be used for health care data management. Also for any secure information sharing when you want to choose who can access the data