discussion of the Creative Commons Metadata work

[Nathan Yergler <nathan AT creativecommons.org>]

Hi Michael,

It appears that the example XMP included in [2] was generated using
our old approach to marking works with license information.  Before
the publication of the CC Rights Expression Language
(http://wiki.creativecommons.org/CC_REL), we recommended including the
full <License> block in both XMP and HTML documents.  We've since
realized that this is redundant and not particularly helpful: the
license is the canonical source of information about itself, so we now
recommend specifying the license by URI.  Interested agents can
de-reference that to discover more information.

The XMP generated by the chooser does provide the minimal amount of
information needed to associate a work with the license, but you're
correct, it does not include the additional metadata you can provide.
I've opened two new issues for our XMP support: one to restore the
visible link and another to update the template we use to generate
that.

http://code.creativecommons.org/issues/issue548
http://code.creativecommons.org/issues/issue547

Finally, please note that the CC Tools repository at Sourceforge is
deprecated; we're hosting our own source repositories these days at
http://code.creativecommons.org/.

Nathan


On Tue, Mar 2, 2010 at 11:40 AM, Michael Dorrington
<michael.dorrington AT gmail.com> wrote:
> I want to be able to embed CC licences[0] in PDFs made via LaTeX.
>
> I'm using xmpincl[1] to embed a licence which works great. I can embed
> the included example licence of CC-GNU GPL listed in the "The XMP
> inclusion package" document[2]. But I want to embed a different licence
> so I need the corresponding XMP file.
>
> Many pages on the creative commons site, for example the one on XMP[3]
> and the one on XMP embedding for pdflatex[4], say that the licensing
> process[5] offers an XMP template. I can't find this option either
> before or after the licence is generated. However, there is trick to get
> the XMP file. Select the licence you want, for example:
>
>  Allow commercial uses of your work? Yes
>  Allow modifications of your work? No
>  Jurisdiction of your licence: None of the above
>
>  Additional information
>  Tell us the format of your work: Text
>  Title of work: FIXME_TITLE_OF_WORK
>  Attribute work to name: FIXME_ATTRIBUTE_WORK_TO_NAME
>  Attribute work to URL: FIXME_ATTRIBUTE_WORK_TO_URL
>  Source work URL: FIXME_SOURCE_WORK_URL
>  More permissions URL: FIXME_MORE_PERMISSIONS_URL
>
> Click "Select a Licence". This loads a long URL[6]. Now change
> "results-one" to "xmp" in the URL[7]. This new URL will load
> "CC_Attribution-No_Derivative_Works_3.0_Unported.xmp". This XMP file
> contains nothing from, and is not influenced by, the "Additional
> information" section of the "Choose a License" page[5] so you get same
> result from missing it out[8]. Now this XMP doesn't include all the
> elements that are in CC-GNU GPL XMP listed in the "The XMP inclusion
> package" document[2]. It doesn't have any "Agent" elements nor does it
> have any "permits" or "requires" elements. I can use hyperref (and
> beamer) to set Agent-like information in the PDF.
>
> Another source of machine readable licences is the RDF versions of
> licences that are part of cctools[9]. These include an RDF version of
> "CC_Attribution-No_Derivative_Works_3.0_Unported"[10]. These RDF
> licences include elements of "permits", "requires" and the "title" in
> many languages other than English. These elements are not in the XMP
> file obtained from the "Choose a License" page[5]. Could this be because
> it is using an older, simpler schema as described in "Embedded Metadata
> with XMP"[11] that has now be extended to the current schema[12]?
>
> Given all this, is the XMP file generated via the "Choose a Licence"
> method[8] sufficient to convey the licence? And if not, then what XMP
> file should I use?
>
> Your advice is very much appreciated. Please note that I am not
> subscribed to the list so please CC me.
>
> Regards,
> Michael.
>
> [0] British English spelling.
> [1] http://www.ctan.org/tex-archive/macros/latex/contrib/xmpincl/
> [2] http://mirror.ctan.org/macros/latex/contrib/xmpincl/xmpincl.pdf
> [3] http://wiki.creativecommons.org/XMP
> [4] http://creativecommons.org/weblog/entry/4270
> [5] http://creativecommons.org/choose/
> [6]
> http://creativecommons.org/choose/results-one?q_1=2&q_1=1&field_commercial=yes&field_derivatives=n&field_jurisdiction=&field_format=Text&field_worktitle=FIXME_TITLE_OF_WORK&field_attribute_to_name=FIXME_ATTRIBUTE_WORK_TO_NAME&field_attribute_to_url=FIXME_ATTRIBUTE_WORK_TO_URL&field_sourceurl=FIXME_SOURCE_WORK_URL&field_morepermissionsurl=FIXME_MORE_PERMISSIONS_URL&lang=en_GB&language=en_GB&n_questions=3
> [7]
> http://creativecommons.org/choose/xmp?q_1=2&q_1=1&field_commercial=yes&field_derivatives=n&field_jurisdiction=&field_format=Text&field_worktitle=FIXME_TITLE_OF_WORK&field_attribute_to_name=FIXME_ATTRIBUTE_WORK_TO_NAME&field_attribute_to_url=FIXME_ATTRIBUTE_WORK_TO_URL&field_sourceurl=FIXME_SOURCE_WORK_URL&field_morepermissionsurl=FIXME_MORE_PERMISSIONS_URL&lang=en_GB&language=en_GB&n_questions=3
> [8]
> http://creativecommons.org/choose/xmp?q_1=2&q_1=1&field_commercial=yes&field_derivatives=n&field_jurisdiction=&lang=en_GB&language=en_GB&n_questions=3
> [9]
> http://cctools.svn.sourceforge.net/viewvc/cctools/license.rdf/trunk/license_rdf/
> [10]
> http://cctools.svn.sourceforge.net/viewvc/cctools/license.rdf/trunk/license_rdf/creativecommons.org_licenses_by-nd_3.0_.rdf
> [11]
> http://wiki.creativecommons.org/images/f/ff/Creativecommons-embedded-metadata-with-xmp_eng.pdf
> [12] http://creativecommons.org/ns#
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