[Roger Ver] attempted to use a QRcode containing a private key to give away some cryptocurrency on TV, but the code was blurred out by the broadcaster. Not ones to give up easily, [Michael] and ...
Indeed, depending on which type and size used, a QRcode can be readable with up to 30% degradation and encode up to 2,953 bytes. 7000 digits of pi in a QRCode Where do QR codes play a role ...
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