Questions tagged [cc-by-sa]
For questions about the Creative Commons Attribution-ShareAlike (CC BY-SA) licenses.
136 questions
92
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2
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Why is CC BY-SA discouraged for code?
Everybody knows that you shouldn't use a CC BY-SA license on your code. Even the Creative Commons folk recommend against it. What I don't know or understand is why. I can't seem to find any ...
66
votes
2
answers
3k
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Relicensing content under CC-BY-SA
I have compiled a body of work from numerous contributors, who all licensed their individual works to me under CC-BY-SA version 3.
Can I now instead redistribute their work under CC-BY-SA version 4?
36
votes
6
answers
3k
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Can I copy-paste a snippet from Stack Overflow into my GNU-GPL project?
I have found on Stack Overflow a 10-lines block of code that does exactly what I want.
There is no license information in the post nor on the answerer's profile page, so the CC BY-SA 3.0 license of ...
30
votes
3
answers
3k
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What do I need to share if I include CC-BY-SA artwork in my software?
CC-BY-SA is a Creative Commons license with a copyleft clause - if you derive something from it, you must also provide the derivative under the same license if you distribute it. The relevant clause ...
26
votes
1
answer
783
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Do Stack Exchange’s ToS mean that the user-generated content is double-licensed to them?
In the ToS of Stack Exchange sites, under the section Subscriber Content, the first sentence states that my submitted content is licensed (to Stack Exchange) under CC BY-SA 3.0:
You agree that all ...
24
votes
2
answers
4k
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Can I "upgrade" the version of CC BY-SA from 3.0 to 4.0 in my modification?
What I'm doing:
I'm adapting a work licensed under CC BY-SA 3.0 Unported license to a different language.
I'm indicating the original work and its license.
I'm indicating that I have made changes to ...
22
votes
1
answer
772
views
What is considered proper attribution for a deleted Stack Exchange post?
When a creator posts content to any Stack Exchange site, they grant Stack Exchange a Creative Commons Attribute Share-Alike license to use (and display and share) the content. This is irrevocable - ...
17
votes
1
answer
1k
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How can I license a YouTube commercial which includes CC BY-SA Licensed music?
Context: I'm making a YouTube commercial, which includes some music that's licensed under CC BY-SA 3.0.
Would an audio-visual work constitute a derivative work of the music used in it, and (given the ...
15
votes
2
answers
237
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The Stack Exchange licence: Can I post open source code here?
Stack Exchange applies CC-BY-SA to all posts. How does this interact with free or open source licences? If someone wants to ask a question about a piece of open source software can they post code ...
14
votes
2
answers
1k
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Does the CC-BY-SA License require that source code of derivative works be shared?
For example, if I create a LaTeX file and license it with CC BY SA, can someone create a derivative work, but only publish the PDF, without giving out the derived LaTeX source code?
Does this fall ...
14
votes
2
answers
2k
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Can I post code examples with GPL software on Stack Overflow?
Suppose there is a Python library called g which is licensed under GPL v2.0 (or v3.0). Suppose further that the library is sufficiently complex that it contains some C/C++ component(s) that are ...
14
votes
1
answer
690
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Selling a book based on CC BY-SA
My company would like to make a book mostly adapted from CC-BY-SA licenced text. I understand this is legal if we distribute the adapted text under the same licence. But what if we add to the book our ...
14
votes
1
answer
3k
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MIT-licensed project with CC-BY-SA dependency
I have a project (code) that I am wanting to license as MIT. It has a few dependencies, mostly assets (icons and images). Some dependencies are MIT and I include their licenses in the source, but a ...
13
votes
1
answer
394
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How does re-licensing without the approval of authors work (eg, wikimedia case)?
Wikipedia (and any other Wikimedia product) change to a dual licence since 01/08/2009. As I understand, that implies they redistribute GFDL licensed text in CC-BY-SA without asking every author (wich ...
13
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2
answers
1k
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Can I use GPL v3 for source code and CC BY-SA v3 for comments?
I have some source code for which I am the copyright holder. I want to release it under the GPL, but when it was closed source, I copied a bunch of a stuff from Wikipedia for a couple of classes and ...
11
votes
5
answers
5k
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Do the CC licenses prevent insults?
Most CC licenses allow a change of the material
Adapt — remix, transform, and build upon the material for any purpose, even commercially.
I am a big fan of CC licenses, because they enable ...
11
votes
2
answers
881
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What counts as adaptation for using code licensed under CC BY-SA 4.0 in software licensed under GPLv3?
Since 2015-10-08, GPLv3 is listed as one-way compatible license for CC BY-SA 4.0:
[…] you may license your contributions to adaptations of BY-SA 4.0 materials under GPLv3, but you may not license ...
10
votes
2
answers
1k
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Will adding a BY-SA image to a blog post make the entire post BY-SA?
I tried to read the license deed but it was too advanced for me to understand.
Consider these 2 situations,
I take a CC-BY-SA image and upload it to my blogpost it as is, without any modification.
I ...
9
votes
3
answers
2k
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Changing my own non-software project from GPLv3 to CC BY-SA
I have a growing project which is a platform for 3D printers. The project contains printable parts and bills of materials. I defaulted to releasing it under GPLv3 without much thinking but since it's ...
9
votes
1
answer
140
views
Attribution for a "2nd generation" derivative work
How do you deal with attribution of a work that is derived from a work that is itself derived from an original work protected under CC BY-SA?
And while we're at it, let's push it further: Let's call ...
8
votes
2
answers
1k
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Stack Exchange's CC-BY-SA and Patents
All contributions to the Stack Exchange Websites are released under the Creative Commons Attribution-ShareAlike License (CC-BY-SA), either version 2.5, 3.0, or 4.0 depending on the post date. This ...
8
votes
2
answers
1k
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How to provide credit when modifying a design with a CC BY-SA license?
Background:
A few years ago, I've designed a low-cost scientific instrument and published all schematics, building instructions and necessary scripts in open source under the Creative Commons ...
8
votes
2
answers
348
views
How do you write an attribution if there's ambiguity over which version of Creative Commons applies?
Currently there's a discussion on Meta over whether or not StackExchange was allowed to retrospectively change their licensing policy from CC SA 3.0 to CC SA 4.0. Presuming that it is indeed an open ...
8
votes
2
answers
245
views
Can I adapt a CC-BY-SA licensed webpage to host rights-reserved copyrighted content?
I think the inverse of What do I need to share if I include CC-BY-SA artwork in my software?.
Some webpages, such as Code for America are licensed under CC-BY-SA. If I want to adapt the code for this ...
8
votes
1
answer
575
views
In which cases must I relicense my product under the CC BY-SA license?
Because copyright law can encompass a huge range of scenarios and be unclear to talk about in abstract terms, I'm going to give concrete examples. I understand CC BY is a permissive license. All it ...
8
votes
1
answer
3k
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Creative Commons license CC BY-SA doesn't work for commercial content?
I'm puzzled by the "share-alike" clause in Creative Commons license. This license allows free commercial use but "require[s] [] adaptations of the work to be released under the same or similar license ...
8
votes
2
answers
3k
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Can I use source code licensed under CC-BY-SA for commercial closed source project?
I want to use some source code under CC-BY-SA for my company's project.
That project is commercial and closed source code.
I want our project not to have obligation to release the source code.
Is this ...
8
votes
0
answers
113
views
Do I have to distribute intermediary formats of my adaption? [duplicate]
There's a website that I really like which is licensed under CC-BY-SA. I've always thought it would work really well as a physical book too, and so I've decided to try to make it happen.
I'm planning ...
7
votes
3
answers
776
views
CC-By-SA: Can the author update his past creation when updating his name?
I'm working at Pl@ntNet which contributes a lot of plant observations (around 20M) online under cc-by-sa.
On the app, a user can edit their profile and change their display name. But doing so will ...
7
votes
3
answers
996
views
Can I license artwork that has a mixture of CC BY-SA, public domain, CC0, Pexels licensed images under CC BY-SA?
I have created some artwork that uses images mostly licensed under variations of CC BY-SA. There are also some public domain, CC0, and rarely images from Pexels/similar "free to use" sites. ...
7
votes
2
answers
429
views
Does CC BY-SA affect recordings of performances of songs?
If I write, and publish sheet music for, a hymn under CC BY-SA, and it is sung in a church, and the church records their services, does the recording have to be CC BY-SA? If so, can I avoid this while ...
7
votes
1
answer
2k
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Can a YouTube video use images licensed under Creative Commons Share Alike (CC BY SA) and not be an adaptation?
I plan to create YouTube videos where the idea is to explain current affairs using the following approach.
Use of animations, text content and images as the visual part.
The voiceover which narrates ...
7
votes
1
answer
1k
views
How can I use programming documentation without infringing copyright?
I have a really hard time understanding how can I use copyrighted programming documentation, tutorials, articles, blogs, etc. presented as text or video, without infringing copyright?
I will explain ...
7
votes
1
answer
736
views
Using CC-BY-SA images in a CC-BY-NC-SA document
I am creating a presentation that includes some unmodified images licensed under either CC-BY, CC-BY-SA version 2.0, 3.0 or 4.0 (no CC-BY-SA 4.0) and some public domain images. They are all attributed....
7
votes
1
answer
94
views
In a Wikipedia article am I able to insert information licensed with CC BY even though they use a CC BY-SA license?
Background:
While writing an article on Wikipedia I needed to include text that is licensed under a CC-BY license. After a bit of digging I found that Wikipedia uses a CC BY-SA license.
Question:
...
7
votes
1
answer
185
views
Can I license Latex code under GPL but the content under CC BY-SA?
I have written a non-trivial scientific text for university.
It is written in Latex and I want to make the source available under GPL (v3 if that matters) so other can learn from my Latex skills. ...
7
votes
2
answers
1k
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Creative Commons ShareAlike, weak or strong copyleft?
I am wondering whether Creative Commons ShareAlike is a weak or strong copyleft license. That is, does it allow linking with code with under a different license?
6
votes
3
answers
1k
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Does every adaptation of a CC BY-SA work violate its terms?
I read somewhere (I cannot recall where) that licensing a work under a Creative Commons license (or any license, really) is like adding a second license on top of the "license" that ...
6
votes
1
answer
534
views
Is HTML-linked content still subject to the CC-BY-SA license?
If someone links to a Github or Gitlab repo in a Stackoverflow post, or a Github or Gitlab gist, is the contained content CC-BY-SA? Let's say I am the sole author of the code on Github/Gitlab?
For a ...
6
votes
2
answers
628
views
What license for code resembles CC BY-SA most?
With the rise of much licensing debate around here on Stack Exchange, there's been a lot of arguments about having a license closest to the status quo. Initially, I would've thought that the closest ...
6
votes
1
answer
358
views
Must CC BY-SA be included for ideas and code taken from Stack Overflow?
I'm still unclear about licensing. If I have a project on Github that's licensed under GPL and found pseudocode on a Stack Overflow question, must I now dual license my code on Github and GPL as ...
6
votes
1
answer
531
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GFDL and CC BY-SA compatibility and Use
For Free/Opensource documentation, There are two license widely used.
GNU Free Documentation License
Creative Commons BY-Share Alike
Both say re-distribution must be under same license as GFDL is ...
6
votes
1
answer
517
views
A non-bloated license for documentation with the benefits of GPL?
In response to one of the FAQs, FSF has noted:
It is possible to use the GPL for a manual, but the GNU Free Documentation License (GFDL) is much better for manuals.
The GPL was designed for programs; ...
6
votes
1
answer
143
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Quoting your own content (in your own work, licensed under CC BY-SA 3.0) to avoid licensing it
Bob writes an article and licenses it under CC BY-SA 3.0.
Certain laws can permit Bob to include someone else’s content in his article, even if this content isn’t compatibly licensed. For example, ...
5
votes
2
answers
1k
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Clarifying "Share Alike" in CC licenses
I am working on some materials for sale to history teachers. I have found a map that has a:
CC BY-SA 3.0
...licensed attached. I am not adapting the map or altering it in any way.
My understanding ...
5
votes
1
answer
606
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CC BY-SA 2.5 License marked as denied license in the FOSSA tool after upgrading to React Native 0.74 version
We have an existing React Native project that was upgraded from 0.71.0 to 0.74.0 latest version.
We are us a tool FOSSA to scan the license-related issues in the NPM libraries used in the project.
We ...
5
votes
1
answer
1k
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Does the Creative Commons CC BY-SA 4.0 license make it mandatory to share derived work?
Let's say that I'm using art works protected by the Creative Commons CC BY-SA 4.0 license. I then modify the art works so that they fit my personal requirements and include them in a commercial ...
5
votes
2
answers
762
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Using CC BY SA video with my own copyrighted music
I am a music producer and am releasing an album shortly of which I own the copyright to the tracks (although some Master Recordings are signed to a record label in a commercial agreement).
I would ...
5
votes
3
answers
206
views
How do I stop republication under a different license?
Suppose I am finishing an open source software. I am about to publish it but I just have to choose the license. I want it to be a CC-BY license but I don't want anyone to republish it under ANY other ...
5
votes
1
answer
342
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Company policy says no code under license requiring sharing source can be used. Stack Overflow is CC-BY-SA. Does this mean we can't use SO at work?
Training at work regarding software licensing instructed us that we should not use code from any project using a license that requires sharing modifications such as the GPL. We can use Linux as an OS ...