WikiChem:Copyrights
By default, all content on this wikichem.org website is to be licensed under the Creative Commons Attribution–Share Alike 3.0 Unported license unless you specifically state otherwise for a specific file you upload. This means that anyone can use your file for anything they like as long as they:
- Attribute the file to this site and to you in an appropriate way (such as adding a link)
- Distribute the file under the same terms
- Follow the terms you lay down in your posting, if you choose to add these.
Closed copyright files cannot be posted here, but GNU licenses are acceptable in certain circumstances. You may also declare a specific file to be public domain.
Contents
General
All material on WikiChem must either be
- free of copyright both in the United States (where WikiChem is based) and in its country of origin; or
- licensed by the copyright holder under terms that are no more restrictive to reusers than the Creative Commons Attribution–Share Alike licenses.
Text
User contributions
By default, all user contributions are licensed under the CC-BY-SA-3.0 license: by clicking the “Save page” button, users agree to license their work under those terms or under any terms that are less restrictive to reusers.
Third-party text
WikiChem can only accept extended text from third parties if The source is clearly attributed both on the page and in the edit summary; and The text is licensed under a license that is no more restrictive to reusers than a CC-BY-SA license.
Short quotations are acceptable so long as the original author is clearly attributed.
Text from Wikipedia
Text from Wikipedia falls between the two extremes above. All text on Wikipedia is currently licensed under the CC-BY-SA-3.0 license, and so can be imported to WikiChem. However, to resolve the issue of attribution, it is important to add the {{Imported from Wikipedia}} tag at the very bottom of the page, including both the name of the Wikipedia article and the revision number that was imported.
Images and media files
Every file in the “File” namespace must have a copyright tag and an indication of its source, even if it was created by a WikiChem user: untagged files may be deleted without warning.
WikiChem does not accept images and media files which could only be used under the “fair use” provision of U.S. copyright law (17 U.S.C. 107).
User contributions
“User contributions” here means images or media files that you have created yourself, not simply found on the Internet or scanned from a book.
User image and media files must be licensed under terms that are no more restrictive to reusers than the Creative Commons Attribution–Share Alike licenses.
Acceptable licences
Unacceptable restrictions
- no commercial use (or educational use only, or WikiChem use only): CC-BY-NC, CC-BY-NC-SA, CC-BY-NC-ND
- no derivative works: CC-BY-ND, CC-BY-NC-ND
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This project page is currently licensed under the Creative Commons Attribution 3.0 Unported license and any later versions of that license. |
