[jats-list] Encoding QR data in JATS/NISO-STS

["G. Ken Holman g.ken.holman@xxxxxxxxx" <jats-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Hey, folks! I hope everyone on the list is well.

In our publishing flow I described at JATSCon:

  https://www.ncbi.nlm.nih.gov/books/NBK591971/#_d1e181_

... we convert authored JATS or NISO-STS and massage it into a 
version of JATS or NISO-STS for downstream use, including our own 
publishing of PDF and HTML. Our clients then make the massaged XML 
available to their clients if needed.

A client has asked for a QR code on the cover sheet, and I cannot 
find explicit guidelines for this in the library documentation.

As I have implemented it today, I ask the authors to put a placebo in 
place in the metadata that I fill with the QR image data for 
downstream publishing and distribution. And it works just fine. But I 
would appreciate a design review, please, on the use of JATS/NISO-STS.

So this from the author:

  <self-uri content-type="qr" xlink:href="...some-uri..."/>

... becomes this downstream:

  <self-uri content-type="qr" xlink:href="...some-uri..."
>data:image/png;base64,iVBORw0oA...qr-image-for-some-uri...AAhEUgAA</self-uri>

If there is more than one, then specific-use= can direct me regarding 
where the QR code goes in the cover sheet:

  <self-uri content-type="qr" specific-use="commenting"
            xlink:href="...some-uri..."/>

  <self-uri content-type="qr" specific-use="purchase"
            xlink:href="...some-other-uri..."/>

... and I will populate both with QR image data in the creation of 
the downstream NISO-STS. Recipients have the image data at hand if 
they want it, and they have the URI at hand regardless. I think this 
covers the bases, but I haven't seen element content with image data before.

Have others approached the encoding of QR code data in JATS before?

If so, how have you done it?

If not, would you accept the way I have implemented it?

Thank you for your thoughts!

. . . . . . . Ken

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