Add S2PD BibTeX citation with arXiv identifier

README.md

@@ -100,3 +100,19 @@ Original weights, adapters, Rubik’s Cube Real footage, and training curves: [M
 [Lichess games](https://database.lichess.org/): [CC0](./LICENSE-CHESS-CC0-1.0.txt). The [mirrored Wan backbone, VAE, UMT5 encoder, and tokenizer](./pretrained/wan-2.2-ti2v-5b): [Apache 2.0](./LICENSE-WAN-APACHE-2.0.txt).
 
 S2PD Kubric renders: [CC BY-SA 4.0](./data/kubric_movi_a/LICENSE.txt); see the dataset cards for upstream attribution.
+
+## Citation
+
+If you use S2PD in your research, please cite:
+
+```bibtex
+@misc{hu2026s2pd,
+  title         = {{S2PD}: Serial-to-Parallel Diffusion for Physically and Logically Consistent Video Generation},
+  author        = {Hu, Jeffrey and Olmeda Reino, Daniel and Tewari, Ayush},
+  year          = {2026},
+  eprint        = {2610.06847},
+  archivePrefix = {arXiv},
+  primaryClass  = {cs.CV},
+  url           = {https://arxiv.org/abs/2610.06847}
+}
+```