> that's on Windows 10 though [sqlite3 dll+tools SQLite 3.36.0 2021-06-18], whereas on (Debian, SQLite 3.16.2 2017-01-06) Linux the check yields just 'ok'. Are you perchance accessing that db via a virtual filesystem mounted in the other OS? If so, i recommend eliminating that middleman and trying again. It seems highly unlikely that, on a local/native/non-virtual filesystem, you could get different results for bitwise-identical copies of a database file. It is *never* recommended to use sqlite db's across remote mounts, e.g. SMB or NFS, or virtualization layers which abstract a host OS's storage to a guest OS. *That Way Lies Madness.*