Questions tagged [cc-by-sa]

For questions about the Creative Commons Attribution-ShareAlike (CC BY-SA) licenses.

Filter by
Sorted by
Tagged with
75
votes
2answers
13k views

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 ...
65
votes
2answers
3k views

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?
35
votes
6answers
2k views

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 ...
28
votes
3answers
2k views

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 ...
20
votes
2answers
2k views

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 ...
20
votes
1answer
652 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 - ...
18
votes
1answer
393 views

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 ...
15
votes
1answer
1k views

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
2answers
207 views

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 ...
13
votes
2answers
732 views

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 ...
13
votes
1answer
470 views

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 ...
12
votes
5answers
5k views

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 ...
12
votes
1answer
298 views

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 ...
12
votes
2answers
1k views

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 ...
11
votes
2answers
797 views

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
2answers
470 views

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
2answers
1k views

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
3answers
2k views

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 ...
8
votes
2answers
275 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
2answers
216 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
1answer
832 views

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 ...
8
votes
1answer
111 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
0answers
107 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
1answer
810 views

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 ...
7
votes
1answer
51 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
1answer
116 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
2answers
289 views

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
3answers
1k views

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
1answer
1k views

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 ...
6
votes
2answers
306 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
1answer
194 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 ...
6
votes
1answer
147 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
1answer
106 views

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
2answers
445 views

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
3answers
156 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
2answers
95 views

Does Stack Exchange disallow me to use posted contents in an Apache 2.0 licensed project?

Content posted on Stack Exchange sites like Stack Overflow or Electrical Engineering are CC-BY-SA 3.0 licensed. User contributions licensed under cc-by-sa 3.0 See the footer of any SE site: As ...
5
votes
3answers
307 views

Does a CC BY-SA 4.0 specification lose any AGPL3+ benefits?

If I release a program specification [1] under the AGPL, and the program itself under the AGPL, the two are obviously compatible: I can develop them at the same time, copy text (for example, method ...
5
votes
1answer
1k views

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 ...
5
votes
1answer
203 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 ...
5
votes
1answer
65 views

What are my obligations when citing myself on an SE site for an internal company blog?

I would like to use content I wrote on SE as part of an internal blog. However, I would like to avoid directly linking my SE profile to my RL person. If I quote material from an SE post written by me,...
5
votes
1answer
166 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....
5
votes
1answer
203 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 ...
5
votes
1answer
333 views

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 ...
5
votes
1answer
140 views

Can CC BY 4.0 content be adapted into a CC BY-SA 3.0 work?

If an original work is licensed under Creative Commons Attribution 4.0 (CC BY 4.0), can an adapted work (i.e. derivative work) be made from it and published under Creative Commons Attribution 3.0 (CC ...
4
votes
1answer
549 views

Can derivatives of CC BY-SA works be licensed under CC BY-NC-SA?

Does the CC BY-SA license prevent additional restrictions being placed on derivatives? I'm wondering, if I release a work under BY-SA, can someone else create a derivative and license it under BY-NC-...
4
votes
2answers
149 views

Protection from 'this version or later' in CC BY-SA

I was wondering about the meaning of this term in CC BY-SA 4.0 (and others), with this context: In addition to the conditions in Section 3(a), if You Share Adapted Material You produce, the ...
4
votes
1answer
274 views

What is the exact definition of an Adaptation under Creative Commons?

The text of the CC-BY-SA 3.0 license mentions the following: You may Distribute or Publicly Perform an Adaptation only under the terms of: (i) this License; (ii) a later version of this License ...
4
votes
1answer
121 views

How could I copyleft a document that contains a substantial amount of both code and prose?

I am writing a document in LaTeX that contains large sections of Python code and output. Typically, I like to license my writing under CC BY-SA 4.0 and my code under GPLv3. I have already placed a CC ...
4
votes
1answer
258 views

Using CC BY-SA music in a podcast

We've just started a podcast and we're not sure which license we will give it. Might be CC or public domain, for now we keep it to the default (all rights reserved). The podcast is about 20 minutes ...
4
votes
1answer
135 views

Is it more accurate to compare CC BY-SA to LGPL rather than GPL?

CC BY-SA, LGPL and GPL are all copyleft licenses. GPL's key feature is that by embedding one work in another (as defined in a software context), the combined work becomes GPL. With LGPL this is not ...