bclones were only one way to trigger the corruption. This is not a good way to check.
It's also not worth checking for because this bug has existed for many years. Your data probably wasn't affected. None of the massive ZFS storage companies out there ran into it by now either.
It's also not worth checking for because this bug has existed for many years. Your data probably wasn't affected. None of the massive ZFS storage companies out there ran into it by now either.
Your data is fine. Sleep easy.