16 lines
3.3 KiB
Markdown
16 lines
3.3 KiB
Markdown
# CC0
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CC0 is a [waiver](waiver.md) (similar to a [license](license.md)) of [copyright](copyright.md), created by [Creative Commons](creative_commons.md), that can be used to dedicate one's work to the [public domain](public_domain.md) (kind of).
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UPDATE: There is now a similar waiver called [WPDD](wpdd.md) (*worldwide public domain dedication*, https://wpdd.info/), intended to also waive [patents](patent.md).
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Unlike a license, a waiver such as this *removes* (at least effectively) the author's copyright; by using CC0 the author willingly gives up his own copyright so that the work will no longer be owned by anyone (while a license preserves the author's copyright while granting some rights to other people). It's therefore the most [free](free_software.md) and [permissive](permissive.md) option for releasing intellectual works. CC0 is designed in a pretty sophisticated way, it also waives "neighboring rights" (e.g. [moral rights](moral_rights.md); waving these rights is why we prefer CC0 over other waivers such as [unlicense](unlicense.md)), and also contains a fallback license in case waiving copyright isn't possible in a certain country. For this CC0 is one of the best ways, if not the best, of truly and completely dedicating works to public domain world-wide (well, at least in terms of copyright). In this world of extremely fucked up [intellectual property](intellectual_property.md) laws it is not enough to state "my work is public domain" -- you need to use something like CC0 to achieve legally valid public domain status.
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WATCH OUT: **don't confuse CC0 with Creative Commons Public Domain Mark** (apart from name the symbols are also a bit similar), the latter is not a license or waiver, just a tag, i.e. CC0 is used to release something to the public domain, while PD mark is used to mark that something is already in the public domain (mostly due to being old).
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CC0 is recommended by [LRS](lrs.md) for both programs and other art -- however for programs additional waivers of [patents](patent.md) should be added as CC0 doesn't deal with patents. CC0 is endorsed by the [FSF](fsf.md) but not [OSI](osi.md) (who rejected it because it explicitly states that trademarks and patents are NOT waived).
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It's nice that CC0 became quite widely used and you can find a lot of material under this waiver, but **BEWARE**, if you find something under CC0, do verify it's actually valid, normies often don't know what CC0 means and happily post derivative works of proprietary stuff under CC0.
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Some **things under CC0** include Librivox audiobooks, [Dusk OS](duskos.md), [Wikidata](wikidata.md) database, Lichess chess database, great many things on sites like [Wikimedia Commons](wikimedia_commons.md), [opengameart](oga.md) (see e.g. Kenney), Blendswap, freesound etc., whole [Esolang Wiki](esolang.md), OSdev Wiki (since 2011), [Encyclopedia Dramatica](dramatica.md) (EDIT: seems like they dropped it now :D Internet archive has the old CC0 version still), [LRS](lrs.md) software ([Anarch](anarch.md), [small3dlib](small3dlib.md), [raycastlib](raycastlib.md), [SAF](saf.md), [comun](comun.md)) and [LRS wiki](lrs_wiki.md), [books](books.md) like *The Pig and the Box* (anti [DRM](drm.md) child story) or *[Cost of Freedom](cost_of_freedom.md)*, some [fonts](font.md) by dotcolon, Lix (libre game), evlisp minimalist [Lisp](lisp.md) (from book "Lisp From Nothing") and many others.
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