term:

Authentic Act

authentic act n

in the civil law of Louisiana
: a writing executed in accordance with law which requires that each party to the writing sign it before a public officer (as a notary public) and two witnesses and that the public officer and witnesses also sign the writing

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.