Update README.md

README.md

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   <h3 style="font-size:1.5em; font-weight:600; line-height:1.3; margin:0 0 16px;">Seamless Video Loop Generation via Anchored Looping Shift of Positional Embedding</h3>
 
-[![arXiv](https://img.shields.io/badge/arXiv-XXXX.XXXXX-red)](https://arxiv.org/abs/XXXX.XXXXX)
+[![arXiv](https://img.shields.io/badge/arXiv-2608.23090-red)](http://arxiv.org/abs/2608.23090)
 [![Project Page](https://img.shields.io/badge/Project_Page-Link-green)](https://donghaotian123.github.io/Loopy/)
 [![🤗 HuggingFace](https://img.shields.io/badge/%F0%9F%A4%97%20HuggingFace-Model-orange)](https://huggingface.co/htdong/Loopy)