A few years ago, I thought I had lost the original (I had just misplaced it), so I sent for a replacement, and the replacement was a notarized photocopy of the original.
Yes, I have that information on mine. Mine is called “Certificate of Birth” which I assumed meant a legitimate birth certificate. And you’re right — you don’t get an original — it’s just a stamped, sealed copy.
Anyway, I don’t know about passports, but for the business I needed the certificate for, mine was accepted.
≤}B^)