ResearchBenchmarksWatermark Spoofing on PF Sampling-based distortion-free watermarkFollow62SSRRLSpoofer1.1616.95532.7548.545Apr 13, 2026Evaluation ResultsMethodMethodLinksSSRSRP-SPGPTSRLSpooferAttacker Model=Qwen3-4BAttacker Model=Qwen3-4B2026.046282.8776.6DistillAttacker Model=Qwen3-4BAttacker Model=Qwen3-4B2026.0466.5967.67DPOAttacker Model=Qwen3-4BAttacker Model=Qwen3-4B2026.045.258.75889.3DITTOAttacker Model=Qwen3-4BAttacker Model=Qwen3-4B2026.043.56.25876.01