George Joseph Laurer
"There is nothing sinister about [the UPC code] nor does it have anything to do with the Bible's 'mark of the beast'. It is simply a coincidence like the fact that my first, middle, and last name all have 6 letters."
The Universal Product Code (UPC) is a barcode symbology (i.e., a specific type of barcode) that is widely used through out the world. UPC (technically refers to UPC-A) consists of 12 numerical digits, that are uniquely assigned to each trade item. Along with the related EAN barcode, the UPC is the barcode mainly used for scanning of trade items at the point of sale, per GS1 specifications. UPC data structures are a component of GTINs and follow the global GS1 specification, which is based on international standards. But some retailers (clothing, furniture) do not use the GS1 system (rather other barcode symbologies or article number systems). On the other hand, some retailers use the EAN/UPC barcode symbology, but without using a GTIN