Multi-isotope survey (run 2026-10-17) Seven even-even heavy nuclei from ENDF/B-VII.1 (s-wave, J=1/2, first resolved region, >=100 levels) compared with the same number of Riemann zeros (Odlyzko, first 2000 copy). Files: compare.py (run: python compare.py), *.mf2.endf.gz (only the MF2/MT151 resonance section, copied unchanged from the library file), zeros-first2000.txt, results.json, rank-paired-spacings.csv. rank-paired-spacings.csv lines up the k-th nuclear spacing beside the k-th zero spacing for side-by-side inspection. The pairing is by rank only; it is not a physical match. All KS thresholds and p-values are nominal. Diagnostic only; no predictive mapping is claimed.