ProofFrame

ProofFrame is a data validation tool that uses strict Arrow contracts to catch bad data before it reaches production. It provides exact violation counts, deterministic fingerprints, keyed diffs, and verifiable evidence stored as cryptographic receipts. It runs via a native Rust engine, accessible through Python and Rust packages, and can run entirely in-browser via WebAssembly without uploading files. It integrates with schedulers like Airflow and Dagster to provide reliable data acceptance checks and proofs for datasets, contracts, and validation results.