“I’ll give you that much,” Corvallis said. “Writing a name on a title page is easy. Forging a whole document written in a consistent hand is hard.” “It is damn near unforgeable evidence that one specific person wrote the whole manuscript. That’s what a holograph is—it’s what the word denoted before it came to be used to mean three-D image technology.” “So ‘holography’—the H in ‘PURDAH’—is shorthand for ‘creating documents that are provably traceable to a given author.’”
