Junxian Li
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126
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2026
AttnDiff: Attention-based Differential Fingerprinting for Large Language Models
AttnDiff introduces a data-efficient white-box framework that extracts intrinsic attention-based fingerprints to verify the provenance and detect unauthorized derivation of large language models (LLMs) despite common model laundering techniques.
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Papers
cs.CRcs.LGRecentApr 7, 2026
AttnDiff: Attention-based Differential Fingerprinting for Large Language Models
Haobo Zhang, Zhenhua Xu, Junxian Li, Shangfeng Sheng +2 more
AttnDiff introduces a data-efficient white-box framework that extracts intrinsic attention-based fingerprints to verify the provenance and detect unauthorized derivation of large language models (LLMs…
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