You might find this an informative read. The United States Isn't a Country — It's a Corporation!
In essence, this Act formed the corporation known as THE UNITED STATES. Note the capitalization, because it is important. This corporation, owned by foreign interests, moved right in and shoved the original "organic" version of the Constitution into a dusty corner. With the "Act of 1871," our Constitution was defaced in the sense that the title was block-capitalized and the word "for" was changed to the word "of" in the title. The original Constitution drafted by the Founding Fathers, was written in this manner: "The Constitution for the united states of America".