MM:”If there were indeed an error discovered on the original record, then I imagine it would be the original record that would be corrected.”
This is doubtful since it would require all the original participants (who may be deceased) to sign the document again to be official. It would also remove the forensic trail that is provided by the original document. More likely they would keep all historic documentation related to the birth record. That would mean the original and any ammendments that were relevant would be on file.
I do know this is true of most all official legal documents but am not 100% sure it is the case for Hawaiian birth records.
Any new “certification” of the birth record would then provide only the most up-to-date information available. Of course, this would be irrelevant for 99% of the BCs out there but I would suspect that mistakes are made on occasion and there must be a legal mechanism in place to remedy such situations.