La Livrée d'Hermès — Progress report, September 2026

Progress report on the mathematical study of La Livrée d’Hermès, as of 5 November 2026.

It contains: - the coordinated report of 31 October 2026, in French with an English summary; - an addendum of 5 November in both languages; - the current versions of the articles; - the latest results, including the supplement C1–C6 and the audit report of 5 November.

The addendum summarises the new results: - exact spectral ambiguities at source orders 18 and 30; - the J-area law in gnomons; - the directional corpus of 379,920 patterns at order 30; - a conditional octet of 256 patterns with eight free binary choices. It also summarises their audit: the sixteen certificates reproduce, and independent programs confirm the octet, the isospectral pair, the J-area law and the count of 172 at order 18.

Licence: CC BY 4.0.