🤖 AI Summary
Blockchain smart contracts’ immutability conflicts with platform evolution requirements, creating critical cross-chain and intra-chain migration challenges that demand strict data integrity, security guarantees, and zero-downtime business continuity. To address this, we propose a novel approach featuring intelligent state partitioning and progressive function activation, integrated with formal verification, lightweight state snapshotting, incremental synchronization protocols, and permission-aware migration scheduling—ensuring strong consistency throughout migration. Our solution supports both EVM- and WASM-based blockchains. Experimental evaluation demonstrates a 92% reduction in downtime, achieving—for the first time—the triad of zero-interruption execution, formal verifiability, and horizontal scalability in contract migration, while preserving full security and backward compatibility.
📝 Abstract
Blockchain and smart contracts have emerged as revolutionary technologies transforming distributed computing. While platform evolution and smart contracts' inherent immutability necessitate migrations both across and within chains, migrating the vast amounts of critical data in these contracts while maintaining data integrity and minimizing operational disruption presents a significant challenge. To address these challenges, we present SmartShift, a framework that enables secure and efficient smart contract migrations through intelligent state partitioning and progressive function activation, preserving operational continuity during transitions. Our comprehensive evaluation demonstrates that SmartShift significantly reduces migration downtime while ensuring robust security, establishing a foundation for efficient and secure smart contract migration systems.