Add technical report link and citation to model card

README.md

@@ -13,6 +13,8 @@ library_name: causilo
 
 Causilo is a pretrained tabular foundation model from Nums AI Inc., supporting classification and regression through a scikit-learn interface.
 
+[Technical report](https://arxiv.org/abs/2609.22866)
+
 ## Files
 
 - `classifier/config.json` and `classifier/model.safetensors`: classification model.
@@ -53,3 +55,19 @@ See the [code repository](https://github.com/nums-ai/causilo) for usage and [ben
 - These points summarize the License; the full text controls.
 
 Licensor: Nums AI Inc. Contact: contact@nums.world.
+
+## Citation
+
+If you use Causilo in research, please cite:
+
+```bibtex
+@misc{cho2026causilotechnicalreport,
+  title={Causilo Technical Report},
+  author={Minyong Cho and Minho Jeong and Dooho Lee and Jinmo Lee and Jaemin Yoo},
+  year={2026},
+  eprint={2609.22866},
+  archivePrefix={arXiv},
+  primaryClass={cs.LG},
+  url={https://arxiv.org/abs/2609.22866},
+}
+```