[Dylan16807]

Whoever wrote this makes my head hurt.

If you were using binary storage, you wouldn't use "the JWS character set" (aka base64). You'd store it directly and have 0 wasted bits.

Also, they're not acknowledging the bits wasted by their current system. Numeric mode in QR codes spends 3.33 bits per digit. At two digits per character, they're spending 6.67 bits to store only 6 bits of information.