@misc{Kriebel2026PrescribedBlockCodeExtensions,
  author = {Kriebel, Alec},
  title = {An effective criterion for prescribed block-code extensions},
  year = {2026},
  month = {oct},
  day = {16},
  date = {2026-10-16},
  version = {1.0},
  publisher = {Zenodo},
  doi = {10.5281/zenodo.23416806},
  url = {https://zenodo.org/records/23416806},
  note = {Unrefereed preprint; extensive AI assistance; no external human peer review or formal proof certification},
  orcid = {0009-0001-9320-500X}
}