[cc-community] Compatibility of CC licenses between jurisidictions?
Paul Houle
paul at ontology2.com
Tue Jul 6 13:25:43 EDT 2010
Here's another practical problem.
Let's suppose I'm writing a blog article (for the sake of argument,
I'm based in the US )and I'm incorporating photographs that I've gotten
from other sources.
If the photographs are cc-by-{country} it seems like there's no
problem if I attribute correctly.
Now, if the photographs are cc-by-sa-{country}, I'm a little more
concerned. Is cc-by-sa-{country} compatible with cc-by-sa unported?
What issues are involved?
When I look at wikipedia I see that wikipedia as a whole is
http://en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_Attribution-ShareAlike_3.0_Unported_License
but I can find photos in wikimedia commons that are in specific
country licenses, for instance:
http://commons.wikimedia.org/wiki/File:Presa_chira_gran_canaria.JPG
which is used on the page
http://en.wikipedia.org/wiki/Gran_Canaria
of course there are also strange examples such as
http://commons.wikimedia.org/wiki/File:Dingzhou_Liaodi_Pagoda_3.jpg
which has contradictory statements on the page, but contains the
particularly strange assertion that "Multi-license with GFDL and
Creative Commons CC-BY-SA-2.5 and older versions (2.0 and 1.0)"
-----
Which then begs the question, suppose I'm running a photo
collection site, say something like
http://carpictures.cc/
what do I have to tell the users? Can I just "relicense" the images
as cc-by-sa/3.0 "unported" or do I have to code each and every possible
license and explain them to end users?
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