# Open Food Facts barcode derivative notice

This directory contains a standalone barcode derivative built from the frozen Open Food Facts staging export plus source-captured contemporary additions. It is separate from the site's other food data and does not change the licence or provenance of those data sets.

The derivative database is available under the [Open Database License (ODbL) v1.0](https://opendatacommons.org/licenses/odbl/1-0/). The Open Food Facts individual database contents are available under the [Database Contents License](https://opendatacommons.org/licenses/dbcl/1-0/).

Primary source: [Open Food Facts](https://world.openfoodfacts.org/) official static CSV, acquired and frozen 2026-09-05. Snapshot SHA-256: `f72687ee8bc6522054fe69dbfda6b91902c16af1ec2e043cde27bc6c29ad8176`.

The contemporary additions capture three explicit MyProtein GTINs from the official product API on 2026-09-06 and 51 validated UK/IE GTINs from the acquisition batch on 2026-09-15. Each record retains source provenance, a named variant, explicit quantity and a compatible nutrition basis. They are standalone barcode records, not joins to the site's separate food catalogue.

The complete machine-readable derivative is [off-barcode-v1.json](/data/off-barcode/off-barcode-v1.json). Its deterministic SHA-256 is published in [off-barcode-v1.sha256](/data/off-barcode/off-barcode-v1.sha256). The build report records the transformation checks and rejected rows in [off-barcode-v1.build-report.json](/data/off-barcode/off-barcode-v1.build-report.json).

The deterministic transformation method is available in [build_off_barcode_bundle.py](/scripts/build_off_barcode_bundle.py).

No product images are included. Product labels and packs can change: check the physical pack before relying on a barcode result.