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Witeness Overlap: Directional Provenance Inside Open-Weight Model Families

BACKGROUND
1 SIGNALFIRST DETECTED 29 September 2026
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11 Aug
Who Built This Model? Tracing LLM Lineage via Spectral Fingerprints in Weight Space

arXiv:2608.07786v1 Announce Type: new Abstract: Open-weight large language models (LLMs) are increasingly developed through complex, multi-stage pipelines, leading to intricate

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12 Aug
TokenPrint: A Calibrated Token-Space Fingerprint for Language-Model Provenance

arXiv:2608.08139v1 Announce Type: new Abstract: Establishing the provenance of a language model---including its base checkpoint and possible overlap in training distributions---is

REPORT · HOW · ArXiv CS.AIOPEN STORY
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