DoubleUp Roll: Double-spending in Arbitrum by Rolling It Back
Zhiyuan Sun, Zihao Li, Xinghao Peng, Xiapu Luo, Muhui Jiang, Hao Zhou, Yinqian Zhang · 2024
Optimistic rollup protocols are widely adopted as the most popular blockchain scaling solutions. As a dominant implementation, Arbitrum has boasted a total locked value exceeding 18 billion USD, highlighting the significance of optimistic rollups in blockchain ecosystem. Despite their popularity, little research has been done on the security of optimistic rollup protocols, and potential vulnerabilities on them remain unknown.