Blockchain-Based Service Level Agreement Verification Framework

Abstract

Traditional Service Level Agreement (SLA) services depend on centralized architectures, where users must inherently trust a single provider for accurate data collection, storage, and reporting. This reliance limits transparency and prevents independent validation of monitoring results. To address these limitations, this paper introduces a decentralized framework for SLA verification that eliminates the need for trust in a central authority. The proposed protocol leverages geographically distributed validator nodes that independently perform service checks and submit signed observations. A quorum-based consensus mechanism is applied to aggregate validator responses, ensuring reliability and reducing the impact of faulty or malicious nodes. Monitoring results are recorded on-chain using the Solana programming model, enabling immutable storage and public verifiability. By utilizing idle computational resources from independent participants, the system forms an economically driven validation network that promotes decentralization and scalability. The design ensures that any external entity can audit and verify uptime records without depending on the protocol operator. Experimental evaluation and comparative analysis indicate that the proposed approach significantly enhances auditability, tamper resistance, and SLA validation capabilities compared to conventional centralized solutions, though it introduces additional system complexity and coordination overhead.