Check the hash of an object to confirm its provenance.
Value
TRUE if the provenance is confirmed to be consistent, FALSE if
the provenance is not consistent, or NA if provenance is not present.
An object that was modified after it was created by a PKNCA function that
marks provenance (for example dplyr::filter(), dplyr::mutate(),
exclude(), or normalize() on a PKNCAresults object) has a hash such
as "filtered from <hash>" instead of the original hash and always gives
FALSE.