This is a QR code. It is a two-dimensional pattern which can be scanned by smart phones much like a barcode. According to wikipedia, QR stands for "quick response", as the pattern is intended to be decoded quickly. This one here direc

Here also is an image of that badge (pre-embroidery).
Come to the Downtown Gallery in Knoxville, TN from April 15-30th to join the Urban Land Scouts and start earning your badges.
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