A method of embedding an optical signature in a document and document produced therefrom. , Ra, Rb, and Rc represent H or an alkyl group of 1 to 4 carbon atoms, and Rd represents a group selected from the group consisting of a benzyl group, a vinyl group, an alkyl group of 1 to 4 carbon atoms, and a group in which a portion of H of these groups has been substituted with OH or NH2. The signaling processor generates a control message that identifies the old and new VPIVCIs and transfers the control message to an ATM gateway. A first model is generated, responsive to the point cloud, that generates a first model representing constituent geometric shapes of the object.