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  2. ISO 8583 - Wikipedia

    en.wikipedia.org/wiki/ISO_8583

    ISO 8583 is an international standard for financial transaction card originated interchange messaging. It is the International Organization for Standardization standard for systems that exchange electronic transactions initiated by cardholders using payment cards.

  3. Card security code - Wikipedia

    en.wikipedia.org/wiki/Card_security_code

    The card security code is located on the back of Mastercard, Visa, Discover, Diners Club, and JCB credit or debit cards and is typically a separate group of three digits to the right of the signature strip On American Express cards, the card security code is a printed, not embossed, group of four digits on the front towards the right

  4. EPC QR code - Wikipedia

    en.wikipedia.org/wiki/EPC_QR_code

    In February 2013, the European Payments Council (EPC) published the document 'Quick Response Code: Guidelines to Enable Data Capture for the Initiation of a Credit Transfer'. [4] These guidelines were quickly adopted by the Austrian banks. These QR code can be recognized thanks to the words "Zahlen mit Code" on the right. [5]

  5. PDF417 - Wikipedia

    en.wikipedia.org/wiki/PDF417

    The code words are also designed to be delta-decodable, so some code words are redundant. Each PDF data code word represents about 10 bits of information (log 2 (900) ≈ 9.8), but the printed code word (character) is 17 modules wide. Including a height of 3 modules, a PDF417 code word takes 51 square modules to represent 10 bits.

  6. Universal Product Code - Wikipedia

    en.wikipedia.org/wiki/Universal_Product_Code

    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 ...

  7. SMART Health Card - Wikipedia

    en.wikipedia.org/wiki/SMART_Health_Card

    The SMART Health Card framework is an open source [1] immunity passport program designed to store and share medical information in paper or digital form. [2] It was initially launched as a vaccine passport during the COVID-19 pandemic, but is envisioned for use for other infectious diseases. [3]

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