That's only germane if it would not be apparent to a competent investigator examining your birth certificate that it is an amended birth certificate.
It has no such indication. I looked at it very closely to see if there was anything that said it was a replacement birth certificate.
This confounded me for a bit, because the document has a stamped seal from the state attesting to it's veracity, and I couldn't figure out how they could assert it was accurate when I knew for a fact that it wasn't. (I have always known I was adopted. I remember the judge asking me if I wanted to take the name of my new daddy.)
They get around this problem with clever wording. The Stamp says this:
I hereby certify the foregoing to be a true and correct copy, original of which is on file in this office.
It IMPLIES that it is a copy of the "Original". It does not SAY that it is a copy of the Original. It SAYS, the "Original" "is on file in this office."
I guess that is why they have clever lawyers writing the wording. The idea is to not let adopted children become aware that they were adopted.