The county health department would probably use a different numbering system than the state. As I understand it, the numbers at the county level are for locating the record in their files. They later receive notification from the state registrar regarding what the STATE file number is.
Congrats for being New Year’s Baby. I hope you let your brother share your reward for it. lol.
Yes, each level or stage has it's own. After it's gone through each step and is filed at the state level, the state informs the county of the official super duper number. The county then hand writes the state number onto their record. Again, where the state number is recorded varies from state to state. If there is no designated box it most likely will be recorded on the top right of the certificate. FYI, in Buckeye's state, there is a statement at the top right for "STATE FILE NO. ______"