Txqr: Transfer data via animated QR codes

Re:Txqr: Transfer data via animated QR codes by social_quotient on Wednesday January 02, 2019 @09:13AM (#18806234)

Offline data sync from an old device to a new one. Many phone carriers provide for something similar in a QR code. My team has an app we developed that has a similar function because the private keys and all of the wallet items are exclusively offline. We show an qr code today. The issue we have hit lately is that the amount of data we have is more than a single code. Depending on the number of wallet items the users have. The animated QR is a good solution for this.

If someone is interested in how we got an amazingly small QR using base-91 and some other cool methods here is a good read with demo code

https://docs.google.com/document/d/1B7AJDVu5ei6c7ZuHRiTvQ_q8...

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Re:Txqr: Transfer data via animated QR codes by jayd16 on Wednesday January 02, 2019 @10:50AM (#18806926)

Why not just use a single code for bluetooth/wifi hand shaking? Wouldn't that be more efficient by any metric and almost as compatible? What device has a solid camera and no wireless communication?

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Re:Txqr: Transfer data via animated QR codes by dzelzs on Wednesday January 02, 2019 @02:26PM (#18809199)

Why not both? There is always the potential that there is an actual reason to upgrade - and borked motherboards where any such modules are damaged as a potential reason.

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Re:Txqr: Transfer data via animated QR codes by jayd16 on Wednesday January 02, 2019 @03:55PM (#18810098)

>Why not both?

User confusion and the fact that high quality camera tech and OCR aren't exactly cheap.

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