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Hi, wanna scan this QR-Code? STOP! Dont scan this QR Code. Youre gonna get rickrolled. But. like, how can this blob of pixels even store the link to anything? Well, its quite simple, actually. You see theres certain parts that are always the same, like these, which enables scanning devices to recognize them immediately. This is the actual data, which is stored in pixels, black, or white. In other words, binary, so, Zeros and Ones, which can then be understood by machines. Once it finds the orientation points, which is easiest if there is a Quiet Zone around the QR-Code, it knows everything within it, is part of the code, and it starts reading, which goes from bottom right upwards in a zig-zag pattern, before it comes down again in the next column. The first four pixels stand for the type of data: Numeric, Alphanumeric, Binary, or Kanji. After that, its filled up with 4x2 blocks representing one byte with 8 bits, until you get to the end message block
