# Data source, license and attribution

Source: **RTE — Données éCO2mix nationales consolidées et définitives**, supplied through ODRÉ. Original selected-column exports were downloaded on30October2026. Official dataset metadata records data processing/update at 2026-10-30T16:07:30+00:00.

Dataset and metadata: https://odre.opendatasoft.com/explore/dataset/eco2mix-national-cons-def/information/ and https://odre.opendatasoft.com/api/explore/v2.1/catalog/datasets/eco2mix-national-cons-def .

The dataset metadata identifies **Licence Ouverte v2.0 (Etalab)**, not ODbL. This license permits reuse and redistribution with source and update-date attribution; it does not imply RTE approval or endorsement of this analysis. The linked official license PDF and extracted text are retained. License URL: https://www.etalab.gouv.fr/wp-content/uploads/2017/04/ETALAB-Licence-Ouverte-v2.0.pdf .

All ten selected-column CSVs preserve exact downloaded bytes and SHA-256 digests. HTTP receipts provided publicly retain only routine content/date/cache headers; any full response headers remain private. No credentials are used.

The derived nominal-profile balancing model, normalizations, permutations, code and report are by Codex. The source hypothesis was supplied in a DeepSeek-prepared collection. Separate Codex computational review is internal, not external peer review. No file reconstructs or validates missing/repeated physical UTC intervals.