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+       <item>
+               <title>UsingQR - &quot;Electronic&quot; paper invoices using JSON and QR codes</title>
+               <link>http://people.skolelinux.org/pere/blog/UsingQR____Electronic__paper_invoices_using_JSON_and_QR_codes.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/UsingQR____Electronic__paper_invoices_using_JSON_and_QR_codes.html</guid>
+                <pubDate>Sat, 19 Mar 2016 09:40:00 +0100</pubDate>
+               <description>&lt;p&gt;Back in 2013 I proposed
+&lt;a href=&quot;http://people.skolelinux.org/pere/blog/_Electronic__paper_invoices___using_vCard_in_a_QR_code.html&quot;&gt;a
+way to make paper and PDF invoices easier to process electronically by
+adding a QR code with the key information about the invoice&lt;/a&gt;.  I
+suggested using vCard field definition, to get some standard format
+for name and address, but any format would work.  I did not do
+anything about the proposal, but hoped someone one day would make
+something like it.  It would make it possible to efficiently send
+machine readable invoices directly between seller and buyer.&lt;/p&gt;
+
+&lt;p&gt;This was the background when I came across a proposal and
+specification from the web based accounting and invoicing supplier
+&lt;a href=&quot;http://www.visma.com/&quot;&gt;Visma&lt;/a&gt; in Sweden called
+&lt;a href=&quot;http://usingqr.com/&quot;&gt;UsingQR&lt;/a&gt;.  Their PDF invoices contain
+a QR code with the key information of the invoice in JSON format.
+This is the typical content of a QR code following the UsingQR
+specification (based on a real world example, some numbers replaced to
+get a more bogus entry).  I&#39;ve reformatted the JSON to make it easier
+to read.  Normally this is all on one long line:
+
+&lt;p&gt;&lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2016-03-19-qr-invoice.png&quot; align=&quot;right&quot;&gt;&lt;pre&gt;
+{
+ &quot;vh&quot;:500.00,
+ &quot;vm&quot;:0,
+ &quot;vl&quot;:0,
+ &quot;uqr&quot;:1,
+ &quot;tp&quot;:1,
+ &quot;nme&quot;:&quot;Din Leverandør&quot;,
+ &quot;cc&quot;:&quot;NO&quot;,
+ &quot;cid&quot;:&quot;997912345 MVA&quot;,
+ &quot;iref&quot;:&quot;12300001&quot;,
+ &quot;idt&quot;:&quot;20151022&quot;,
+ &quot;ddt&quot;:&quot;20151105&quot;,
+ &quot;due&quot;:2500.0000,
+ &quot;cur&quot;:&quot;NOK&quot;,
+ &quot;pt&quot;:&quot;BBAN&quot;,
+ &quot;acc&quot;:&quot;17202612345&quot;,
+ &quot;bc&quot;:&quot;BIENNOK1&quot;,
+ &quot;adr&quot;:&quot;0313 OSLO&quot;
+}
+&lt;/pre&gt;&lt;/p&gt;
+
+&lt;/p&gt;The interpretation of the fields can be found in the
+&lt;a href=&quot;http://usingqr.com/wp-content/uploads/2014/06/UsingQR_specification1.pdf&quot;&gt;format
+specification&lt;/a&gt; (revision 2 from june 2014).  The format seem to
+have most of the information needed to handle accounting and payment
+of invoices, at least the fields I have needed so far here in
+Norway.&lt;/p&gt;
+
+&lt;p&gt;Unfortunately, the site and document do not mention anything about
+the patent, trademark and copyright status of the format and the
+specification.  Because of this, I asked the people behind it back in
+November to clarify.  Ann-Christine Savlid (ann-christine.savlid (at)
+visma.com) replied that Visma had not applied for patent or trademark
+protection for this format, and that there were no copyright based
+usage limitations for the format.  I urged her to make sure this was
+explicitly written on the web pages and in the specification, but
+unfortunately this has not happened yet.  So I guess if there is
+submarine patents, hidden trademarks or a will to sue for copyright
+infringements, those starting to use the UsingQR format might be at
+risk, but if this happen there is some legal defense in the fact that
+the people behind the format claimed it was safe to do so.  At least
+with patents, there is always
+&lt;a href=&quot;http://www.paperspecs.com/paper-news/beware-the-qr-code-patent-trap/&quot;&gt;a
+chance of getting sued...&lt;/a&gt;
+
+&lt;p&gt;I also asked if they planned to maintain the format in an
+independent standard organization to give others more confidence that
+they would participate in the standardization process on equal terms
+with Visma, but they had no immediate plans for this.  Their plan was
+to work with banks to try to get more users of the format, and
+evaluate the way forward if the format proved to be popular.  I hope
+they conclude that using an open standard organisation like
+&lt;a href=&quot;http://www.ietf.org/&quot;&gt;IETF&lt;/a&gt; is the correct place to
+maintain such specification.&lt;/p&gt;
+</description>
+       </item>
+       

        <item>
                <title>Making battery measurements a little easier in Debian</title>
                <link>http://people.skolelinux.org/pere/blog/Making_battery_measurements_a_little_easier_in_Debian.html</link>
        <item>
                <title>Making battery measurements a little easier in Debian</title>
                <link>http://people.skolelinux.org/pere/blog/Making_battery_measurements_a_little_easier_in_Debian.html</link>


@@ -665,114 +748,5 @@ hva slags problemer vi ser med dagens opphavsrettsregime.&lt;/p&gt;
 </description>
        </item>
        
 </description>
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-       <item>
-               <title>The GNU General Public License is not magic pixie dust</title>
-               <link>http://people.skolelinux.org/pere/blog/The_GNU_General_Public_License_is_not_magic_pixie_dust.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/The_GNU_General_Public_License_is_not_magic_pixie_dust.html</guid>
-                <pubDate>Mon, 30 Nov 2015 09:55:00 +0100</pubDate>
-               <description>&lt;p&gt;A blog post from my fellow Debian developer Paul Wise titled
-&quot;&lt;a href=&quot;http://bonedaddy.net/pabs3/log/2015/11/27/sfc-supporter/&quot;&gt;The
-GPL is not magic pixie dust&lt;/a&gt;&quot; explain the importance of making sure
-the &lt;a href=&quot;http://www.gnu.org/copyleft/gpl.html&quot;&gt;GPL&lt;/a&gt; is enforced.
-I quote the blog post from Paul in full here with his permission:&lt;p&gt;
-
-&lt;blockquote&gt;
-
-&lt;p&gt;&lt;a href=&quot;https://sfconservancy.org/supporter/&quot;&gt;&lt;img src=&quot;https://sfconservancy.org/img/supporter-badge.png&quot; width=&quot;194&quot; height=&quot;90&quot; alt=&quot;Become a Software Freedom Conservancy Supporter!&quot; align=&quot;right&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
-
-&lt;blockquote&gt;
-The GPL is not magic pixie dust. It does not work by itself.&lt;br/&gt;
-
-The first step is to choose a
-&lt;a href=&quot;https://copyleft.org/&quot;&gt;copyleft&lt;/a&gt; license for your
-code.&lt;br/&gt;
-
-The next step is, when someone fails to follow that copyleft license,
-&lt;b&gt;it must be enforced&lt;/b&gt;&lt;br/&gt;
-
-and its a simple fact of our modern society that such type of
-work&lt;br/&gt;
-
-is incredibly expensive to do and incredibly difficult to do.
-&lt;/blockquote&gt;
-
-&lt;p&gt;&lt;small&gt;-- &lt;a href=&quot;http://ebb.org/bkuhn/&quot;&gt;Bradley Kuhn&lt;/a&gt;, in
-&lt;a href=&quot;http://faif.us/&quot; title=&quot;Free as in Freedom&quot;&gt;FaiF&lt;/a&gt;
-&lt;a href=&quot;http://faif.us/cast/2015/nov/24/0x57/&quot;&gt;episode
-0x57&lt;/a&gt;&lt;/small&gt;&lt;/p&gt;
-
-&lt;p&gt;As the Debian Website
-&lt;a href=&quot;https://bugs.debian.org/794116&quot;&gt;used&lt;/a&gt;
-&lt;a href=&quot;https://anonscm.debian.org/viewvc/webwml/webwml/english/intro/free.wml?r1=1.24&amp;amp;r2=1.25&quot;&gt;to&lt;/a&gt;
-imply, public domain and permissively licensed software can lead to
-the production of more proprietary software as people discover useful
-software, extend it and or incorporate it into their hardware or
-software products.  Copyleft licenses such as the GNU GPL were created
-to close off this avenue to the production of proprietary software but
-such licenses are not enough.  With the ongoing adoption of Free
-Software by individuals and groups, inevitably the community&#39;s
-expectations of license compliance are violated, usually out of
-ignorance of the way Free Software works, but not always.  As Karen
-and Bradley explained in &lt;a href=&quot;http://faif.us/&quot; title=&quot;Free as in
-Freedom&quot;&gt;FaiF&lt;/a&gt;
-&lt;a href=&quot;http://faif.us/cast/2015/nov/24/0x57/&quot;&gt;episode 0x57&lt;/a&gt;,
-copyleft is nothing if no-one is willing and able to stand up in court
-to protect it.  The reality of today&#39;s world is that legal
-representation is expensive, difficult and time consuming.  With
-&lt;a href=&quot;http://gpl-violations.org/&quot;&gt;gpl-violations.org&lt;/a&gt; in hiatus
-&lt;a href=&quot;http://gpl-violations.org/news/20151027-homepage-recovers/&quot;&gt;until&lt;/a&gt;
-some time in 2016, the &lt;a href=&quot;https://sfconservancy.org/&quot;&gt;Software
-Freedom Conservancy&lt;/a&gt; (a tax-exempt charity) is the major defender
-of the Linux project, Debian and other groups against GPL violations.
-In March the SFC supported a
-&lt;a href=&quot;https://sfconservancy.org/news/2015/mar/05/vmware-lawsuit/&quot;&gt;lawsuit
-by Christoph Hellwig&lt;/a&gt; against VMware for refusing to
-&lt;a href=&quot;https://sfconservancy.org/linux-compliance/vmware-lawsuit-faq.html&quot;&gt;comply
-with the GPL&lt;/a&gt; in relation to their use of parts of the Linux
-kernel.  Since then two of their sponsors pulled corporate funding and
-conferences
-&lt;a href=&quot;https://sfconservancy.org/blog/2015/nov/24/faif-carols-fundraiser/&quot;&gt;blocked
-or cancelled their talks&lt;/a&gt;.  As a result they have decided to rely
-less on corporate funding and more on the broad community of
-individuals who support Free Software and copyleft.  So the SFC has
-&lt;a href=&quot;https://sfconservancy.org/news/2015/nov/23/2015fundraiser/&quot;&gt;launched&lt;/a&gt;
-a &lt;a href=&quot;https://sfconservancy.org/supporter/&quot;&gt;campaign&lt;/a&gt; to create
-a community of folks who stand up for copyleft and the GPL by
-supporting their work on promoting and supporting copyleft and Free
-Software.&lt;/p&gt;
-
-&lt;p&gt;If you support Free Software,
-&lt;a href=&quot;https://sfconservancy.org/blog/2015/nov/26/like-what-I-do/&quot;&gt;like&lt;/a&gt;
-what the SFC do, agree with their
-&lt;a href=&quot;https://sfconservancy.org/linux-compliance/principles.html&quot;&gt;compliance
-principles&lt;/a&gt;, are happy about their
-&lt;a href=&quot;https://sfconservancy.org/supporter/&quot;&gt;successes&lt;/a&gt; in 2015,
-work on a project that is an SFC
-&lt;a href=&quot;https://sfconservancy.org/members/current/&quot;&gt;member&lt;/a&gt; and or
-just want to stand up for copyleft, please join
-&lt;a href=&quot;https://identi.ca/cwebber/image/JQGPA4qbTyyp3-MY8QpvuA&quot;&gt;Christopher
-Allan Webber&lt;/a&gt;,
-&lt;a href=&quot;https://sfconservancy.org/blog/2015/nov/24/faif-carols-fundraiser/&quot;&gt;Carol
-Smith&lt;/a&gt;,
-&lt;a href=&quot;http://www.jonobacon.org/2015/11/25/supporting-software-freedom-conservancy/&quot;&gt;Jono
-Bacon&lt;/a&gt;, myself and
-&lt;a href=&quot;https://sfconservancy.org/sponsors/#supporters&quot;&gt;others&lt;/a&gt; in
-becoming a
-&lt;a href=&quot;https://sfconservancy.org/supporter/&quot;&gt;supporter&lt;/a&gt;.  For the
-next week your donation will be
-&lt;a href=&quot;https://sfconservancy.org/news/2015/nov/27/black-friday/&quot;&gt;matched&lt;/a&gt;
-by an anonymous donor.  Please also consider asking your employer to
-match your donation or become a sponsor of SFC.  Don&#39;t forget to
-spread the word about your support for SFC via email, your blog and or
-social media accounts.&lt;/p&gt;
-
-&lt;/blockquote&gt;
-
-&lt;p&gt;I agree with Paul on this topic and just signed up as a Supporter
-of Software Freedom Conservancy myself.  Perhaps you should be a
-supporter too?&lt;/p&gt;
-</description>
-       </item>
-       

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