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Friday assorted links: 4. Introducing NDEF - Beginning NFC [Book] Chapter 4. Introducing NDEF In order to understand NFC, you need to know about the NFC Data Exchange Format (NDEF), which is the lingua franca for NFC devices and tags. 🔗 www.oreilly.com/library/view/beginning-nfc/9781449324094/ch04.ht... --- ISO 8583: The language of credit cards — Increase Discover the inner workings of ISO 8583, the global standard for credit card transaction messaging. Learn how it powers payment processing across networks and explore its structure, fields, and real-world applications. 🔗 increase.com/articles/iso-8583-the-language-of-credit-cards --- Home | Bitcoin History 🔗 http://bitcoinhistory.info/