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A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...
A Universally Unique Identifier (UUID) is a 128-bit label used for information in computer systems. The term Globally Unique Identifier (GUID) is also used, mostly in Microsoft systems.
The final digit of a Universal Product Code, International Article Number, Global Location Number or Global Trade Item Number is a check digit computed as follows: Add the digits in the odd-numbered positions from the left (first, third, fifth, etc.—not including the check digit) together and multiply by three.
Barcode. A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called ...
An EPC RFID tag used by Wal-Mart. The Electronic Product Code ( EPC) is designed as a universal identifier (using an idiosyncratic numerical code for each different commodity [1]) that provides a unique identity for every physical object anywhere in the world, for all time. The EPC structure is defined in the EPCglobal Tag Data Standard, [2 ...
S10 (UPU standard) The 13-character identifier for a package. It starts with the service indicator for registered mail ("RR"), followed by an 8-digit serial number (28704377), the check-digit (5) and the two-letter ISO country code for the issuing country, India ("IN") The UPU S10 standard defines a system for assigning 13-character identifiers ...
The EAN-8 code is an eight-digit barcode used usually for very small articles, such as chewing gum, where fitting a larger code onto the item would be difficult. Note: the equivalent UPC small format barcode, UPC-E , encodes a GTIN-12 with a special Company Prefix that allows for "zero suppression" of four zeros in the GTIN-12.
product/rotation t1ha (Fast Positive Hash) 64 or 128 bits product/rotation/XOR/add GxHash: 32, 64 or 128 bits AES block cipher pHash: fixed or variable see Perceptual hashing: dhash: 128 bits see Perceptual hashing: SDBM : 32 or 64 bits mult/add or shift/add also used in GNU AWK: OSDB hash: 64 bits add komihash: 64 bits