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Robert H Nagel: System and method for production and authentication of original documents. eSecure biz, Milde & Hoffberg, December 19, 2006: US07152047 (137 worldwide citation)

A system and method for authenticating documents and content thereof. A counterfeit resistant document recording medium is provided, having thereon a predefined unique document identifier and at least one security feature. The recording medium is thereafter imprinted with document content, which typ ...


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Nagel Robert H: System and method for production and authentication of original documents. Esecure Biz, May 7, 2003: EP1307840-A1

A system and method for authenticating documents and content thereof. A counterfeit resistant document recording medium is provided, having thereon a predefined unique document identifier (Figure 2) and at least one security feature (Figure 2). The recording medium is thereafter imprinted with docum ...


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Nagel Robert H: System and method for production and authentication of original documents. Esecure Biz, March 6, 2003: KR1020027015991

A system and method for authenticating documents and content thereof. A counterfeit resistant document recording medium is provided, having thereon a predefined unique document identifier (Figure 2) and at least one security feature (Figure 2). The recording medium is thereafter imprinted with docum ...