This is the condensed 6-page letter version of EGESB-G₂ v6.4 prepared for arXiv submission. It includes the note on the ongoing authorship discussion for NKA-2026-002. Full derivations are in Papers I–V on Zenodo. The spectral refinement (Martin the present work uses exclusively the validated baseline of NKA-2026-001.
Galliano Brigo (Fri,) studied this question.