| abstract |
In accordance with one aspect of the technology, handwritten works (e.g., notes) produced using computer devices are encoded with digital information that is persistently bound with such works, even after conversion into analog form. In accordance with another aspect of the technology, strokes of artwork or handwriting, or glyphs of computer-rendered text, are encoded in a form that permits any alteration of such work to be detected. A variety of other features and arrangements are also detailed. |