6. The computer-implemented method of claim 5 , wherein prior to conditionally confirming the authorship of the first document, the method includes requesting that the entity confirm that the byline associated with the profile for the entity is the byline that the entity includes in documents authored by the entity hosted at the first domain.
5. The computer-implemented method of claim 1 , wherein the authorship identifier includes a byline for a purported author of or contributor to the first document as the byline appears in documents hosted at the first domain.