@misc{Paone2026UnboundedSignatureLine,
  author = {Paone, Andrea},
  title = {Unbounded Signature of Line Graphs: Counterexamples and Transfer Principles},
  month = aug,
  year = {2026},
  date = {2026-08-01},
  version = {2.0-rev2},
  doi = {10.5281/zenodo.21737348},
  url = {https://doi.org/10.5281/zenodo.21737348},
  note = {Preprint; not peer reviewed}
}