Reproducibility

Every calculator output ships with a v2 certificate that splits a deterministic result_hash (same inputs → same hash) from a timestamped receipt_hash (different at every export). This page collects the site-level reproducibility artefacts: bundle version, validation receipt, file manifest with SHA-256 of every key file, and a downloadable bundle.

Bundle metadata

Last validation receipt

Download reproducibility bundle

The bundle is built in your browser: it fetches every registry, validation report, calc page, and shared script listed in the manifest, computes SHA-256 of each, and emits a single archive plus a manifest.json.

How to reproduce

## How to reproduce
1. Unzip
2. Open index.html in any browser
3. Open validation/index.html — receipt should match validation_badge.json
4. Open any calc page — export a certificate; result_hash should be deterministic for the same inputs

File manifest

Live SHA-256 of every key file in the bundle. Reviewers can re-fetch any file and verify the hash.