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Re: Thoughts on current discussion around QR codes

From: Christopher Allen <ChristopherA@lifewithalacrity.com>
Date: Sun, 16 Feb 2020 03:36:49 -0800
Message-ID: <CACrqygALLvJDoZ7NpahfzC_BEiRYspvgctXW+tQbi+Q7GKDjXg@mail.gmail.com>
To: Credentials Community Group <public-credentials@w3.org>, W3C DID Working Group <public-did-wg@w3.org>
Cc: Wolf McNally <wolf@wolfmcnally.com>, "phil.archer@gs1.org" <phil.archer@gs1.org>
>
> If you want to use an optical or RF data carrier, you will be limited by
> the capacity of that system. If the data you want to convey exceeds that
> capacity, you need to reduce your payload, use a higher-capacity data
> carrier, or both. There are higher capacity optical data carriers. In
> particular, JAB might be relevant [5]. That's basically a QR code that
> uses colour to increase the capacity and is on its way to being an ISO
> standard. My colleagues in China are behind another bar code, Han Xin
> [6], which also has a higher capacity than QR.
>
> Please jettison, forget, and generally bury the idea of an animated QR
> code.
>
> Phil
>
> [1] https://www.qrcode.com/en/history/
> [2] https://www.iso.org/standard/44230.html
> [3] https://wicg.github.io/shape-detection-api/
> [4] https://github.com/zxing/zxing
> [5] https://jabcode.org/
> [6] https://www.iso.org/standard/69321.html
>

Here is the reference DID in Jabcode and in iso 69321:

<https://www.iso.org/standard/69321.html>
>
Received on Sunday, 16 February 2020 11:37:16 UTC

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