Author

Yulei Sui

UNSW

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Jul 2026

TRACE: A Two-Channel Robust Attribution Watermark via Complementary Embeddings for LLM-Agent Trajectories

TRACE is presented, to the authors' knowledge the first agent watermark that is distortion-free in its action choices, self-synchronizing under deletion, and unconditionally invariant under rewriting, and it is proved this behavioral watermark's signal is bought with decision entropy.

Zhengguang Gao, Xiao-Yu Li, Xiao-Yang Feng et al. · arXiv.org · 3 citations

Preprint Aug 2026

SpreadMark: Robust Image Watermarking via Spread-Spectrum Embedding

SpreadMark keeps the embedded watermark imperceptible, maintaining high perceptual quality on both COCO and DIV2K, and is the only evaluated method retaining high detection under both the regeneration and the latent-space sparsification settings the authors test.

Wei Song, Yu-Xin Cao, Zhen-Chang Xing et al. · 0 citations