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6 <title>Petter Reinholdtsen: UsingQR - "Electronic" paper invoices using JSON and QR codes
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15 <a href=
"http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen
</a>
23 <div class=
"title">UsingQR - "Electronic" paper invoices using JSON and QR codes
</div>
24 <div class=
"date">19th March
2016</div>
25 <div class=
"body"><p>Back in
2013 I proposed
26 <a href=
"http://people.skolelinux.org/pere/blog/_Electronic__paper_invoices___using_vCard_in_a_QR_code.html">a
27 way to make paper and PDF invoices easier to process electronically by
28 adding a QR code with the key information about the invoice
</a>. I
29 suggested using vCard field definition, to get some standard format
30 for name and address, but any format would work. I did not do
31 anything about the proposal, but hoped someone one day would make
32 something like it. It would make it possible to efficiently send
33 machine readable invoices directly between seller and buyer.
</p>
35 <p>This was the background when I came across a proposal and
36 specification from the web based accounting and invoicing supplier
37 <a href=
"http://www.visma.com/">Visma
</a> in Sweden called
38 <a href=
"http://usingqr.com/">UsingQR
</a>. Their PDF invoices contain
39 a QR code with the key information of the invoice in JSON format.
40 This is the typical content of a QR code following the UsingQR
41 specification (based on a real world example, some numbers replaced to
42 get a more bogus entry). I've reformatted the JSON to make it easier
43 to read. Normally this is all on one long line:
</p>
45 <p><img src=
"http://people.skolelinux.org/pere/blog/images/2016-03-19-qr-invoice.png" align=
"right"><pre>
52 "nme":"Din Leverandør",
54 "cid":"
997912345 MVA",
67 </p>The interpretation of the fields can be found in the
68 <a href=
"http://usingqr.com/wp-content/uploads/2014/06/UsingQR_specification1.pdf">format
69 specification
</a> (revision
2 from june
2014). The format seem to
70 have most of the information needed to handle accounting and payment
71 of invoices, at least the fields I have needed so far here in
74 <p>Unfortunately, the site and document do not mention anything about
75 the patent, trademark and copyright status of the format and the
76 specification. Because of this, I asked the people behind it back in
77 November to clarify. Ann-Christine Savlid (ann-christine.savlid (at)
78 visma.com) replied that Visma had not applied for patent or trademark
79 protection for this format, and that there were no copyright based
80 usage limitations for the format. I urged her to make sure this was
81 explicitly written on the web pages and in the specification, but
82 unfortunately this has not happened yet. So I guess if there is
83 submarine patents, hidden trademarks or a will to sue for copyright
84 infringements, those starting to use the UsingQR format might be at
85 risk, but if this happen there is some legal defense in the fact that
86 the people behind the format claimed it was safe to do so. At least
87 with patents, there is always
88 <a href=
"http://www.paperspecs.com/paper-news/beware-the-qr-code-patent-trap/">a
89 chance of getting sued...
</a></p>
91 <p>I also asked if they planned to maintain the format in an
92 independent standard organization to give others more confidence that
93 they would participate in the standardization process on equal terms
94 with Visma, but they had no immediate plans for this. Their plan was
95 to work with banks to try to get more users of the format, and
96 evaluate the way forward if the format proved to be popular. I hope
97 they conclude that using an open standard organisation like
98 <a href=
"http://www.ietf.org/">IETF
</a> is the correct place to
99 maintain such specification.
</p>
101 <p><strong>Update
2016-
03-
20</strong>: Via Twitter I became aware of
102 <a href=
"https://news.ycombinator.com/item?id=11319492">some comments
103 about this blog post
</a> that had several useful links and references to
104 similar systems. In the Czech republic, the Czech Banking Association
105 standard #
26, with short name SPAYD, uses QR codes with payment
106 information. More information is available from the Wikipedia page on
107 <a href=
"https://en.wikipedia.org/wiki/Short_Payment_Descriptor">Short
108 Payment Descriptor
</a>. And in Germany, there is a system named
109 <a href=
"http://www.bezahlcode.de/">BezahlCode
</a>,
110 (
<a href=
"http://www.bezahlcode.de/wp-content/uploads/BezahlCode_TechDok.pdf">specification
111 v1.8
2013-
12-
05 available as PDF
</a>), which uses QR codes with
112 URL-like formatting using "bank:" as the URI schema/protocol to
113 provide the payment information. There is also the
114 <a href=
"http://www.ferd-net.de/front_content.php?idcat=231">ZUGFeRD
</a>
115 file format that perhaps could be transfered using QR codes, but I am
116 not sure if it is done already. Last, in Bolivia there are reports
117 that tax information since november
2014 need to be printed in QR
118 format on invoices. I have not been able to track down a
119 specification for this format, because of my limited language skill
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"http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (
4)
</a></li>
487 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/english">english (
404)
</a></li>
489 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (
23)
</a></li>
491 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (
14)
</a></li>
493 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (
33)
</a></li>
495 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (
9)
</a></li>
497 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (
20)
</a></li>
499 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/h264">h264 (
20)
</a></li>
501 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/intervju">intervju (
42)
</a></li>
503 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (
16)
</a></li>
505 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart (
22)
</a></li>
507 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kodi">kodi (
4)
</a></li>
509 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ldap">ldap (
9)
</a></li>
511 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lego">lego (
4)
</a></li>
513 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lenker">lenker (
8)
</a></li>
515 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (
2)
</a></li>
517 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (
1)
</a></li>
519 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (
8)
</a></li>
521 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (
42)
</a></li>
523 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (
12)
</a></li>
525 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/noark5">noark5 (
15)
</a></li>
527 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk (
305)
</a></li>
529 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug (
195)
</a></li>
531 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (
37)
</a></li>
533 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/open311">open311 (
2)
</a></li>
535 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (
73)
</a></li>
537 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern (
108)
</a></li>
539 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/raid">raid (
2)
</a></li>
541 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reactos">reactos (
1)
</a></li>
543 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reprap">reprap (
11)
</a></li>
545 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rfid">rfid (
3)
</a></li>
547 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/robot">robot (
12)
</a></li>
549 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rss">rss (
1)
</a></li>
551 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ruter">ruter (
7)
</a></li>
553 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (
2)
</a></li>
555 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (
55)
</a></li>
557 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (
4)
</a></li>
559 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (
5)
</a></li>
561 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard (
64)
</a></li>
563 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (
6)
</a></li>
565 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (
12)
</a></li>
567 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (
55)
</a></li>
569 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (
4)
</a></li>
571 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/usenix">usenix (
2)
</a></li>
573 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/valg">valg (
9)
</a></li>
575 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (
15)
</a></li>
577 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/video">video (
73)
</a></li>
579 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (
4)
</a></li>
581 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/web">web (
42)
</a></li>
587 <p style=
"text-align: right">
588 Created by
<a href=
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