[conductr]

Good luck finding enough people looking for solutions to this problem and reaching them, that's the ??? part. And it's the part you need to convince me is realistic if you were just looking for the investment capital part.

There are plenty of software only solutions you could devise. Just send them the QR code, send them a link of screen share, etc. If the only real problem is they insist on holding and scanning a physical device, the real problem is their process and you should try to disrupt that. Airports have solved this in theory, they have QR code on boarding passes then have a DIY scanner when needed (when boarding and going through TSA). However, in practice I still see people handing over their devices to a human regularly for various reasons. My guess is you'll find the real issue is people just don't care enough to put up resistance. Ie. if you said "I'll hold it" or something, could they just scan it while it was in your hand? They probably could and would in a large number of cases.