User guide ========== The reference backend is dependency-free. Strict representation is the default normalization profile; logical equality is opt-in. A matching fingerprint is evidence for accidental drift detection, not proof against an adversary. Run examples from the repository root. Source preparation, observations and declared lineage remain separate evidence: a capture time does not establish operation timing, and missing data must remain visible in reports. .. toctree:: :maxdepth: 1 fixtures csv tsv jsonl json-documents parquet avro orc pandas numpy polars dask xml normalization fingerprints snapshots comparison lineage queries enron execution parallel cpu cuda