docs: add provenance / EU AI Act Art. 53 note

README.md

@@ -191,3 +191,11 @@ translations = [translate_text(t, "eng_Latn", "deu_Latn") for t in texts]
 - [128-token version](https://huggingface.co/cstr/nllb-200-coreml-128) - Faster for short texts
 
 ```
+
+## Provenance and EU AI Act Art. 53 note
+
+- **Upstream model:** [facebook/nllb-200-distilled-600M](https://huggingface.co/facebook/nllb-200-distilled-600M) — published by `facebook`.
+- **Upstream licence:** `cc-by-nc-4.0`. This repository redistributes under the same terms; it grants no rights the upstream licence does not.
+- **What was done here:** format conversion and/or quantisation only (CoreML). No training, no fine-tuning, no merging, no distillation, no change to architecture, vocabulary or capability. Only the numeric representation of the upstream weights differs.
+- **Training data:** documented — where it is documented at all — by the upstream provider; see the upstream model card. No training data was used, added or selected by this repository.
+- **Provider status:** under Regulation (EU) 2024/1689 the upstream authors remain the provider of this model. Converting the serialisation format does not make this repository the provider of a new general-purpose AI model, and no such claim is made. Questions about training content, copyright policy or model capability belong upstream.