Citizenship defined lost in translation.

[shikamaru]

The birth certificate serves to incorporate the child into the body corporate of the United States and of the State.
The body politic would be the legislature, judiciary, and executive branches of government.

The body corporate and body politic together is government. Government would not be much without subjects whether persons or property to govern .

The birth certificate is evidence of citizenship.

I had a nice thread at ol' SJC2 on my theory titled "Incorporation Theory". A person can be brought into a body through some formal method such as a ceremony or document. A person can be invested (robed) with a quality.

I need to make a short treatise out of it sometime.

This "Incorporation Theory" came to me from book titled, "The King's Two Bodies". The King was obviously a physical human being, but was also vested (robed) with the powers of Sovereignty and Kingship as well as being the body politic of the nation. The subjects form the body corporate.

Another subject worthy of deeper study is 'investiture'.