My wife was adopted in the 1960’s in Virginia. She was born in Ohio, and the BC in Ohio was changed to reflect the adopted parents name; date, time, location, doctor all remain the same. There is no notion of “amended” or anything on the BC to indicate that she was adopted or that there ever was a prior “original” BC in existence. The only way she knows different is that her adopted parents told her, and provided a copy of the adoption papers which indicated who the birth parents were.
Should be a notation in box 18 saying it amended.
I am looking at mine right now.