Blockchain Network Platform for IoT Data Integrity and Scalability.

Decentralised technology backed by blockchain has gained a huge popularity in recent years as it secures autonomous ecosystems without needing a central authority. The origin of the blockchain concept began in the financial domain using cryptocurrency, but over the last few years, blockchain has been applied to a variety of industries. In the era of Industry 4.0, most industries are leveraging automation by using Internet of Things (IoT). Despite numerous applications of blockchain in the industries, due to the significant latency in consensus algorithm in blockchain, businesses using IoT technology are facing performance issues in adopting blockchain. A number of studies address the obstacles for transaction processing performance and system scalability, mostly based on a public blockchain. However, they still involve centralised components, and thus fail to fully utilise decentralisation. Therefore, a private blockchain-based IoT data integration platform is proposed to achieve data integrity and system scalability. Along with the lightweight IoT gateway instead of any other additional middleware, the process and the system configuration are streamlined. By using Hyperledger Fabric, the design is validated and it is shown that the proposed architecture outperforms other conventional model in IoT data processing.