Traceability sounds simple until a reasoning model enters the room. For ordinary generated text, watermarking usually means nudging token choices so the final output carries a statistical signature. That is already a delicate game. Push too weakly and the detector sees nothing. Push too hard and the writing starts to smell like machine-selected confetti. ...
TL;DR for operators Open-model adoption is usually treated as procurement with a nicer download button: find a model, check the licence, skim the model card, run a few benchmarks, and move on. This paper makes that habit look under-specified. Laufer, Oderinwale, and Kleinberg analyse 1.86 million models on Hugging Face and reconstruct family trees linking models to fine-tuned, adapted, quantised, or merged descendants.1 The useful result is not merely that Hugging Face is large. We knew that. The useful result is that model lineages mutate their public governance signals as they spread. ...