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Miloslav Ciz 2024-10-14 20:53:01 +02:00
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@ -56,7 +56,7 @@ So you can only use your own original creations and other public domain works wi
In cases where you DO reuse other PD works, try to minimize their number and try to make sure they belong to the actual **safe** public domain (see above). This again minimizes legal risk and additionally makes it easy to document and prove the sources.
As a next step make sure you clearly **document** your work and the sources you use. This means you write down where all the works contained in your work come from, e.g. in your [readme](read_me.md). Explicitly mention which things you have created yourself (*"I, ..., have created everything myself except for X, Y and Z"*) and which things come from other people and where you have found them. It is great to also archive the proofs of the third party source being public domain (e.g. use the [Internet Archive](internet_archive.md) to snapshot the page with a PD texture you've found). For works that allow it (e.g. source code, text, websites, ...) it is good to use [version control systems](vcs.md) such as [git](git.md) that record WHAT, WHEN and by WHO was contributed. This can all help prove that your work is actually safe and/or remove contributions that caused some legal trouble.
As a next step make sure you clearly **document** your work and the sources you use. This means you write down where all the works contained in your work come from, e.g. in your [readme](readme.md). Explicitly mention which things you have created yourself (*"I, ..., have created everything myself except for X, Y and Z"*) and which things come from other people and where you have found them. It is great to also archive the proofs of the third party source being public domain (e.g. use the [Internet Archive](internet_archive.md) to snapshot the page with a PD texture you've found). For works that allow it (e.g. source code, text, websites, ...) it is good to use [version control systems](vcs.md) such as [git](git.md) that record WHAT, WHEN and by WHO was contributed. This can all help prove that your work is actually safe and/or remove contributions that caused some legal trouble.
If you collaborate with someone on the work, it must be clear that ALL contributors to the work follow what we describe here (e.g. that they all agree to the license/waiver you have chosen etc.). It is safer if there are fewer contributors as with more people involved the chance of someone starting to "make trouble" increases.
@ -78,9 +78,9 @@ There are quite a few places on the Internet where you may find public domain wo
- **[Wikimedia Commons](https://commons.wikimedia.org/wiki/Main_Page)**: Contains only free as in freedom works among which are many PD ones. You can search for them with queries such as `cat incategory:cc-zero`. This site is quite reliable and serious about licensing, if you find a work marked as PD here, you can be reasonably sure this information is true.
- **[Internet Archive](https://archive.org/)**: The biggest Internet archive, huge amount of mainly old works such as scanned books and photos. Beware that this site contains all kinds of works from PD to [proprietary](proprietary.md) and works marked as PD should be checked as there can be errors. There is an *advanced search* tool that can help in searching for PD works, for example [this query](https://archive.org/search.php?query=possible-copyright-status%3A%28NOT_IN_COPYRIGHT%29%20OR%20licenseurl%3A%28%22http%3A%2F%2Fcreativecommons.org%2Fpublicdomain%2Fmark%2F1.0%2F%22%29%20OR%20licenseurl%3A%28%22http%3A%2F%2Fcreativecommons.org%2Fpublicdomain%2Fzero%2F1.0%2F%22%29) tries to achieve this.
- **[Opengameart](https://opengameart.org/)**: Site for sharing free as in freedom [game](game.md) art (pictures, 3D models, sounds, ...) among which are many under [CC0](cc0.md), i.e. PD. Submitted works are checked reasonably well so any CC0 work you find here is likely truly PD.
- **[Freesound](https://freesound.org/)**: Site for sharing sound recordings and sound effects, contains many [CC0](CC0.md) sounds that should be PD.
- **[Freesound](https://freesound.org/)**: Site for sharing sound recordings and sound effects, contains many [CC0](cc0.md) sounds that should be PD.
- **[Project Gutenberg](https://www.gutenberg.org/)**: Archive of old digitized books. NOT ALL are PD, but the real old ones should be. Generally books from before the 20th century should be PD.
- **[Stocksnap](https://stocksnap.io)**: Quality photos and "stock images" under [CC0](CC0.md), i.e. PD.
- **[Stocksnap](https://stocksnap.io)**: Quality photos and "stock images" under [CC0](cc0.md), i.e. PD.
- **[Librivox](https://librivox.org)**: Public domain audiobooks made by volunteers that read PD books from Project Gutenberg.
- **[Wikisource](https://en.wikisource.org/wiki/Main_Page)**: Repository of texts, similar to Project Gutenberg, same rules apply (not all texts here will be PD but the real old ones should be).
- **[Openclipart](http://openclipart.org)**: Vector graphics, all under [CC0](cc0.md), i.e. PD in theory, **however** there do appear pictures that are derivative works of copyrighted works for which of course this is irrelevant. Check very well anything you download from here.