Proof of SQL is a zero knowledge prover that cryptographically verifies SQL query results against untampered data.
The tool addresses the challenge of proving computation integrity over large datasets with latency constraints. It generates zero knowledge proofs that SQL queries were executed correctly, enabling trustless computation over both onchain and offchain data. The prover achieves sub-second latency on analytic queries spanning millions of rows by leveraging a novel commitment scheme and GPU acceleration, making it practical for blockchain transactions and DeFi applications where proof generation must complete within block time.
Developers building data-driven smart contracts or requiring trustless query verification should consider this tool, particularly those working with large datasets where traditional approaches incur prohibitive latency or gas costs. The project integrates with existing SQL databases including centralized systems and blockchain-based alternatives. It is most suitable for applications needing to prove query results onchain or to offchain verifiers during transaction execution. The README notes that not all SQL functions are currently supported, positioning this as an actively developing system rather than a complete SQL implementation.
The project maintains active development with ongoing work to expand SQL feature coverage. Contribution is explicitly encouraged through documented guidelines, with the team soliciting help across feature additions, integration with other zero knowledge solutions, and production deployment. The codebase targets Linux x86_64 systems with NVIDIA GPU acceleration as the primary optimization path, though the developers note that most code should theoretically support other Rust targets at reduced performance.
