Every CSI snapshot is independently reproducible.

Reproducibility means a second machine, given the same methodology, source registry, immutable baselines and source bundle, produces the same snapshot and bundle hash. Each record lists those inputs as content-addressed hashes, the expected CSI value, and the replay steps from the public verification kit to verify them. Every value is derived from declared candidate inputs, carries an explicit data-state label and stays provisional until authenticated production lineage and the benchmark trusted gate pass. A missing or fail-closed artefact renders as an explicit unavailable state, never a fabricated value.