Rethinking Blockchain for IoT

Abstract

This paper explores the rethinking of blockchain architecture for the Internet of Things (IoT) to improve data security, integrity, and processing efficiency. An API gateway collects, prepares, and sends data to blockchain nodes for verification when integrating IoT devices with a blockchain network. Accuracy is ensured by updating the distributed ledger with verified data. Within the blockchain, smart contracts automate actions in response to IoT data situations, carrying out tasks automatically and recording results. Large or supplemental data is stored off-chain to preserve efficiency and scalability, while basic transactional data is kept in the distributed ledger. Direct connection between blockchain nodes via a peer-to-peer (P2P) network promotes fault tolerance, consensus, and data consistency. This architecture utilizes the secure and immutable properties of blockchain technology to address common IoT challenges, offering a robust solution for contemporary IoT applications.