A Blockchain-based IoT-Verifiable Query Service for Efficient and Authentic Data Retrieval in Cloud Systems

The integration of blockchain technology into various sectors has shown promise in enhancing security and data integrity, particularly in Internet of Things (IoT) systems. However, this amalgamation introduces challenges in data query efficiency and authenticity, especially in cloud-based settings. While blockchain offers operational streamlining and robust security, its inherent architecture involving distributed ledgers and consensus algorithms poses efficiency issues in data querying. This paper addresses the critical challenge of balancing query efficiency and data authenticity in Internet of Things (IoT)-based cloud systems. Existing solutions often lack scalability, real-time efficiency, and adaptability to the unique constraints of IoT environments. To overcome these limitations, this paper introduces the IoT-Verifiable Query Service (IoT-VQS), a scalable and secure architecture optimized for real-time data querying and verification in blockchains. This architecture demonstrates high throughput and verification accuracy, desirable for real-time cloud based applications.