Blind and Visually Impaired Community
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Vouchers that people who are blind can verify (self.Blind)
submitted by wildflowersgrow
So let's say i am blind and run a business which sole employees are blind people. We want to start selling gift cards. Now here's the problem.
What kind of gift card will allow me and my employees to be able to verify them, yet at the same time, make it difficult for others to counterfeit it?
I was thinking of using QR codes, and add some tactile surfaces at discrete spots. That would still be counterfeit-able, but definitely adds a layer of difficulty.
Does anyone have an idea to help solve this problem? Thanks!
What kind of gift card will allow me and my employees to be able to verify them, yet at the same time, make it difficult for others to counterfeit it?
I was thinking of using QR codes, and add some tactile surfaces at discrete spots. That would still be counterfeit-able, but definitely adds a layer of difficulty.
Does anyone have an idea to help solve this problem? Thanks!
fastfinge 4 points 5y ago
Use QR codes, but build an app to track when each code has been used. Obviously, when you issue a card, an app will already be needed to create and print the QR Code. At that point, add each code to a database of valid codes. At checkout time, the employee just scans the QR code, and it's checked in the database for validity, and removed when used. Pretty sure this is how every major business does gift cards, either by qr code or magnetic strip.
wildflowersgrow [OP] 2 points 5y ago
Thanks for the advice fastfinge. That works!
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