I just OCR’d the Birth Certificate at 600dpi, using the latest Adobe software. Did it create layers? Yeah, one. Then it singled out over 20 path shapes/elements and it separated the entire background/text out as one image. It did not create layers out of text. It did not rotate anything. It did not re-size anything. Therefore, OCR is NOT the reason this document has layers – layers that contain specific dates and text that were undeniably edited.
You can view the edit history I found in the layers here: https://thesophic.wordpress.com/2011/05/02/the-edit-history-of-those-layers-can-also-be-viewed-in-illustrator/
You can view the scrambled bits of text that OCR was able to decipher and read (not edit nor create layers from) here: https://thesophic.wordpress.com/ocrers/