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Creative Commons Includes GPL And LGPL Metadata

TrentC writes "I was looking at the Creative Commons site this weekend, and was surprised to find, on their license generation page, entries (translated into Portuguese) in a sidebar for the GNU General Public License and GNU Lesser General Public License, including RDF blocks. Since CC is pushing for projects that can generate, validate, display and search for CC license metadata, how cool would it be to be able to do a Google search for GPL-licensed material, or a P2P network for MP3s released under the CC Attribution-ShareAlike license? As an example, Nathan Yergler has released mozCC, a plugin for Mozilla and Firebird that allows you to view CC license information embedded in a webpage, and provides icons on the status bar displaying the CC license options."

19 of 102 comments (clear)

  1. Would be great for P2P by mrdaveb · · Score: 5, Interesting

    Select the "must be licenced under CC" box, and then search for music and other stuff you can download guilt-free.
    Not sure there would be many results to your search though, but it might catch on.

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    1. Re:Would be great for P2P by TrentC · · Score: 3, Interesting

      You can embed a link to a webpage with the license information into an MP3 or image file. A validator would check that the page exists, and that the licensing terms match. Verify is a Mac OS X application that does exactly this.

      While this doesn't prevent fraudulent sites ("Why yes, I am Paul McCartney and I am dedicating The White Album to the public domain"), a friendly e-mail to the webmaster (or at worst, DMCA takedown letter -- wow, using the DMCA for good?) removes the fraudulent page, and the license no longer validates.

      Jay (=

  2. Moz Plugin by Xoder · · Score: 4, Interesting

    Seems like the Moz plugin is what would be really powerful. Then the license data could be slammed into a sidebar for anyone who really needs it, and the icon would profide enough information for Joe FreeData.

    I can't even begin to think about what a feed showing all (L)GPL and FDL stuff would look like. Fatter than the Freshmeat feed, I would suppose.

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  3. Re:Hmm... by Anonymous Coward · · Score: 3, Informative

    What you call "viral" is what CC calls "share alike". It's what I call "copyleft".

  4. Re:GPL Search Engine? by Anonymous Coward · · Score: 3, Informative
  5. GPL and CC -- Can they co-exist? by dexterpexter · · Score: 4, Interesting

    I would love a search engine on which I could search for Open Source Software and CC media, all with one click. However, and perhaps someone more informed than I can explain this, I was under the impression that the GPL was distinct from the CC because, under CC work, any user can use it for any reason and reproduce it without notice, and can then sell it. However, under the GPL, all contributions made under the GPL must be re-released and made available to the public with the GPL notice. In CC, you don't have to worry about license issues.

    Anyone able to compare and contrast the two?

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    1. Re:GPL and CC -- Can they co-exist? by LostCluster · · Score: 4, Informative

      The main Creative Commons licenses are based on the three questions on this page.

      Basically, a CC license could require attribution or not, allow commerical use or not, and allow modification or not allow modification or allow modification only if licensed under the same CC license. It's very flexible, and easy to express in 3 icons which options have been selected.

  6. limitations of CC by akb · · Score: 3, Insightful

    CC does not let you know *who* is asserting that a work falls under a particular license. How do you know if that Britney Spears mp3 is really in the public domain as the embedded CC metadata asserts?

    Probably there needs to be some sort of online rights clearing house along with some sort of PKI infrastructure.

    1. Re:limitations of CC by afree87 · · Score: 5, Informative

      This problem has already been solved by the CC people, who thought of it when the issue of adding metadata to music came up.

      So there's no problem, with MP3s at least.

  7. Brazilian Portuguese translation of GPL by Via_Patrino · · Score: 4, Informative

    IIRC it was translated for portuguese because the brazilian government is promoting Free Software and contracts in english are not valid in Brazil.

  8. Underground music and CC by Anonymous Coward · · Score: 4, Interesting

    Our biggest problem is that we, as a society, have confused well marketed with "good." There's thousands of great musicians running around that are not well known. What main stream America wants is the marketed music. Well, guess what? marketing machines are about making money. Imagine who cool it would be if all the effort thrown into pirating the marketed stuff went into creating an underground force for marketing independent music? The cool thing about the creative commons license is that it is a start in making such an underground force.

  9. Share alike compatibility by DOsinga · · Score: 3, Interesting
    One thing that keeps bugging me, is the compatibility between share alike licenses. The travel content on world66 is licensed under the creative commons license, but we cannot use content from the wikipedia, because of license incompatibility. And if they were compatible, theirs would probably also include a requirement to include the license information, which could lead to the situation where a document based on various sources gets a long list of licenses used.

    - - - - - - -
    World66, the largest open content travel site

  10. Creative Commons offers a spectrum of licenses by TrentC · · Score: 4, Informative

    Well, their comic "A Spectrum of Rights" explains it better than I can, but in brief, you have several licensing options:

    • Are you required to give attribution to the author?
    • Is commercial distribution allowed, or non-commercial distribution only?
    • Are derivative works allowed, or must the work be distributed as provided?
    • Are derivative works allowed to be relicensed, or must they be distributed under the same terms as the work being derived from?
    • For the GPL and LGPL metadata, they added options for "Make source code available" and "Preserve copyright and licensing notices"; those are not necessarily appropriate for an MP3 file or a text file, and don't seem to be available from the license generator.

    Those first four options can be combined to form eleven different licensing combinations, and the CC website will generate the necessary metadata and provide you with links to the "human-readable" (heh) and legal license documentation. The GPL would probably be considered similar to the Attribution-ShareAlike license.

    The important thing to remember is Creative Commons is not a license, it's a spectrum of licenses that can be tailored to your needs. And remember, you can always contact the author and work out a better deal if their license doesn't work for you.

    Jay (=

  11. Yes, it does by TrentC · · Score: 3, Interesting

    CC RDF metadata can include fields for name of author, name of copyright holder, and the name of the work. The Creative Commons page on embedding license information in non-web files covers how validating the license would work.

    You embed a link to a web page into the license data; the web page confirms the embedded license data. If the license link is not there, or the license data at the webpage and the embedded license data don't match, then it does not validate; a good agent would notify you of this, and perhaps even not let you download the non-validating files.

    Yes, you could put up a fraudulent site with fraudulent license data. But that's like saying "selling used cars isn't practical, because I could steal a car and forge the registration." There's a reason fraud is a crime...

    A community that wants to encourage distribution of legitimate works would not let a fraudulent site stay up for long once discovered, which would break the validation chain. And that is the community this system is designed to serve.

    Jay (=

  12. A problem with RDF metadata by MichaelCrawford · · Score: 3, Informative
    Some online communities do not allow you to embed metadata in your posts. I licensed Links to Tens of Thousands of Legal Music Downloads under the Creative Commons Attribution-NoDerivs license, and originally included the RDF in the markup.

    But when I submitted it to Kuro5hin, the preview showed the RDF meta data literally (visibly) in the text, I think to indicate that Scoop was rejecting it. That is, Kuro5hin didn't accept HTML comments in the markup.

    Also, Creative Commons advises posting the Some Rights Reserved image as the license notice, but I couldn't do that because kuro5hin (very sensibly) doesn't allow images. That's why I posted the license notice at the end of the article the way CC says to do for a text file.

    Now, I'm sure Scoop could be updated to allow RDF, but how many online communities are there, and how many will need their software updated?

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  13. Then there's the old search engine style... by NiKnight3 · · Score: 3, Informative

    Then of course there are sites like MacBand, which allows people to download songs created in Apple's GarageBand program for use under various Creative Commons licenses. Metadata available in search engines, however, would be much more prolific; it doesn't require anyone to actually do anything other than put the license on their page (or metadata). Sort of reminds me of Blogchalking.

  14. Heh by r00zky · · Score: 5, Funny

    Look at the different outputs in page 2 of the license generator:
    - Human readable
    - Lawyer readable
    - Machine readable

    Good to know lawyers aren't humans, i was starting to worry :P

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  15. Re:Hmm... by qtp · · Score: 3, Informative

    I seem to recall in the past that Creative Commons had some problems with the GPL and its ilk in the past due to its somewhat viral nature.

    Hmmm...

    I seemto recall that the only propblem the Creative Commons people had with the GPL was that it was to specific to acheive what they were attempting to acheive. Which is why the Creative Commons does not promote only a single license, but a full spectrum of licenses that are only as limiting or as "viral" as the copyright holder whishes them to be. There is a Creative Commons "Share Alike" license that is very much similar to the GPL.

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  16. Problems with the ShareAlike license by TekGoNos · · Score: 3, Insightful

    The first is obviously that ShareAlike and GPL are incompatible. That's annoying and it would be nice if they would merge.

    The second, not so obvious, difference is in a little, but dangerous legal detail :

    From CC-ShareAlike :
    8.c If any provision of this License is invalid or unenforceable under applicable law, it shall not affect the validity or enforceability of the remainder of the terms of this License,

    IANAL, but I guess that, if someone challenge succesfully the requirement that you have to license derivated work alike, (as SCO is trying to) the other terms remain intakt, INCLUDING the right to make derivates.
    Therefor, such a challenge would actually transform the licence to the "Share" (or BSD) type.

    The GPL, however, explicitly forbits this.

    So when succesfully challenged,
    CC ShareAlike transforms into Share,
    GPL transforms into standard copyright (= no rights)

    And I prefere GPL because of this protection, that gives the time to evaluate new licenses.
    There's a reason why I havent choosen BSD from the beginning.

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