The Certificate of Live Birth is a Pledge Document

[shikamaru]

I would like to point out that registering of names is not a common law custom.
In common law, you can have any name or as many as you like so long as one is not engaged in fraud (learned courtesy of Am. Jur.).

I tend to think of one's birth certificate as an account.
An account is a chose in action.
Charges and the like are assessed against the account.

One could think of the birth certificate as the establishment of one's trade name.
One could be a sole proprietor.