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Re: [Taler] 36C3 Demo

From: Florian Dold
Subject: Re: [Taler] 36C3 Demo
Date: Tue, 7 Jan 2020 14:19:24 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1

On 1/7/20 12:40 PM, Hartmut Goebel wrote>>> That would help with the new
law in germany where customers need to get
>>> a receipt in all stores ("Bonpflicht").
> We could try to make this into a selling point for Taler.

That's a great idea, and there's also another project idea hidden in
there: E-Bon management.  The GNU Taler wallet already needs to manage
users' purchases and sync them in a privacy-conscious way.

There are already some shops in Germany (like Rewe) where you can,
instead of getting a wasteful paper receipt, use their app to receive
the E-Bon.  What's terrible though is that this is just covering up
another customer data collection scheme, they require you to give your
payback card, otherwise you won't receive an E-Bon.

Maybe for smaller businesses this would be a use-case for Taler even if
no e-cash is involved.  You pay, and then scan a QR code or NFC tag at
the shop's counter.  If scanning fails or there is no internet, a paper
receipt is printed (potentially with a QR code where you can add the
receipt to your wallet later).  If scanning succeeds, the wallet
contacts the merchant backend and downloads the E-Bon.

This way even people/businesses that are not primarily interested in the
E-Cash aspect would have a reason to use Taler ;-)

If somebody wants to apply with this idea for the next Prototype Fund
round, I'd be happy to help with that.  That sounds like a great match,
it has privacy and environmental protection (no dead trees for buying a
pretzel) in there.

- Florian

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