| http://www.w3.org/ns/prov#value | - Alternatively, for sensitive objects or documents, such as passports, identification cards, certificates, the multi-colored barcode may be produced using specialized printers, such as those manufactured by Toppan Printing Company, Olympus Incorporated, or Hewlett-Packard Development Company, L.P. The present teachings may be implemented based on well known hardware, software, firmware, or any comb
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