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

README.md

@@ -96,3 +96,11 @@ print(embeddings.shape)  # (2, 1024)
 ## License
 
 Apache 2.0 — same as [Octen/Octen-Embedding-0.6B](https://huggingface.co/Octen/Octen-Embedding-0.6B) and [Qwen/Qwen3-Embedding-0.6B](https://huggingface.co/Qwen/Qwen3-Embedding-0.6B).
+
+## Provenance and EU AI Act Art. 53 note
+
+- **Upstream model:** [Octen/Octen-Embedding-0.6B](https://huggingface.co/Octen/Octen-Embedding-0.6B) — published by `Octen`.
+- **Upstream licence:** `apache-2.0`. 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 (ONNX). 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. No training-content summary was found on the upstream model card at the time of writing; that documentation gap is upstream's and is not filled here.
+- **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.