PathMark watermarks MoE LLMs by hiding ownership in expert-routing paths, since dense-model tricks keep breaking.
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01 02 LineageMark: Multi-user White-box Watermarking for Contribution Tracing in Model Derivation Chains arxiv.orgWhite-box watermarking for model lineage, with signals designed to survive re-finetuning, re-watermarking, quantization, and pruning.