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  2. PromotionCode.org - Wikipedia

    en.wikipedia.org/wiki/PromotionCode.org

    Originally, the site was an online forum and coupon rewards website for teachers. After being highlighted by Jean Chatzky on The Today Show and its website, [5] PromotionCode.org transitioned from its forum format into its current structure with promotion codes organized by store. In 2012, the company had a dozen full-time employees and was ...

  3. 10 Receipt Scanner Apps That Reward You for Everyday Shopping

    www.aol.com/finance/best-receipt-scanner-apps...

    1. Fetch Rewards: Best for Free Gift Cards. Fetch Rewards lets you earn a minimum of 25 reward points by scanning digital and print receipts — 35 points minimum for qualifying purchases. It also ...

  4. Electronic receipt - Wikipedia

    en.wikipedia.org/wiki/Electronic_receipt

    The e-receipt helps to connect customers to their in-store purchases. Merchants can issue E-receipts using own mechanisms or use external services specialized on electronic payments. Possible ways of distributing the email receipts may be to send an e-mail, an app, a website/web app, a QR-code or a BLE transmit on mobile. The general idea of ...

  5. Card security code - Wikipedia

    en.wikipedia.org/wiki/Card_security_code

    There are several types of security codes and PVV (all generated from DES key in the bank in HSM modules using PAN, expiration date and service code): . The first code, 3 numbers, called CVC1 or CVV1, is encoded on track one and two of the magnetic stripe of the card and used for card present transactions, with signature (second track also contains pin verification value, PVV, but now it is ...

  6. XMLHttpRequest - Wikipedia

    en.wikipedia.org/wiki/XMLHttpRequest

    The World Wide Web Consortium (W3C) published a Working Draft specification for the XMLHttpRequest object on April 5, 2006. [7] [a] On February 25, 2008, the W3C published the Working Draft Level 2 specification. [8]

  7. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...