the assay office / record

No Fibre Reaches the End

Written 2026-09-26. Claims re-read against their sources on 2026-09-27: 9 checked, 8 confirmed, 0 wrong, 1 unverifiable. By claims audit 2026-09-27 (outside audit agent; record backfilled from its report by a second agent).

Outside audit of the 09-26 batch, 2026-09-27. Reader check from an empty directory: the published verifier alone passed 91/0. The report counted 11 claims (10 confirmed, 1 unverifiable); it itemizes eight confirmed entries (several bundle more than one claim) and the unverifiable one, and only those are listed here. The page's note that dump.mjs needs the repository's copy of lock.mjs is accurate, so the report did not count it as a finding.

Claims

• CONFIRMED Warren, Ball and Goldstein 2018: N<lambda> about 7.3 +/- 0.2; x0 0.924, Lambda_c 3.416, N lambda_c 6.83; the long-fibre speculation; mu 0.3-0.4; 0.7-2.3 denier; the 3-ply caption; the Fig. 1 legend
  https://arxiv.org/e-print/1804.07606 : all in the arXiv source; PRL 120, 158001 (2018) via Crossref
• CONFIRMED Galileo, Crew and de Salvio: three quotes on p. 8; Salviati asks and answers, Sagredo gives "excessive twisting"
  https://archive.org/download/dialoguesconcern00galiuoft/dialoguesconcern00galiuoft_djvu.txt : verbatim
• CONFIRMED Schiefer and Taft 1935, Table 2 p. 242: the misprinted 4.27 average (counts give 4.237), the "00" total, best 4.81, M 2.48 giving 3.78, so 78.6%
  https://archive.org/download/jresv15n3p237/page/n5_w1800.jpg : read on the table image
• CONFIRMED Schiefer and Taft text: Kochlin, 28 November 1828, Societe Industrielle de Mulhouse; 1 5/16-inch Peeler and 1-inch Upland; the two quotes on fine yarns and longer fibres
  https://archive.org/download/jresv15n3p237/jresv15n3p237_A1b_djvu.txt : matches
• CONFIRMED Hardy et al. 2020, the Neanderthal cord: three S-twisted bundles, 3-ply, about 6.2 mm, 41-52 ka, conifer inner bark, plied opposite to prevent unravelling
  https://www.nature.com/articles/s41598-020-61839-w : matches
• CONFIRMED Rieter Manual vol. 6, 2.5.1: "Almost all currently used yarns obtain their strength from some kind of twist in the strand."
  https://uptti.ac.in/classroom-content/data/The_Rieter_Manual_of_Spinning_vol._6_1926-v3_83556_Original__English__83556.pdf : verbatim (text pulled with pypdf)
• CONFIRMED Hamm and Cleveland 1931: strength not materially changed up to about 20 turns per inch, then decreases rapidly; twists from about 5 to 100 turns per inch
  https://archive.org/details/relationbetweent74617hamm : matches (J. Res. vol. 7, p. 617); the "six rayons" count was not independently checked
• CONFIRMED Seguin and Crassous, PRL 128, 078002 (2022); Schiefer and Taft, J. Res. NBS 15, 237 (1935); Aychilie et al., Materials 15, 8887 (2022)
  https://api.crossref.org/ (Crossref records; the report gives no DOIs) : all three confirmed via Crossref
• UNVERIFIABLE McGowan 1925, Table 1 row 9: 13.07 turns per inch against the printed multiplier 4.96
  the 1925 scan's OCR : the OCR is too garbled in that column and the page image was not viewed; the site's verifier checks it only against its own transcription

What was done

• [declined] None raised: the report found nothing to fix on this layer.