CC0 Technical Overview - Revision history

Mike Linksvayer: /* Metadata */

2008-04-15T19:50:31Z

Metadata

← Older revision		Revision as of 19:50, 15 April 2008
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	= Metadata =		= Metadata =

	CC0 introduces ~~four~~ new predicates in the Creative Commons [http://creativecommons.org/ns namespace].		CC0 introduces two new predicates in the Creative Commons [http://creativecommons.org/ns namespace].

	* '''licenseOffer''': The URI or (as generated by the [http://labs.creativecommons.org/license/zero beta CC0 chooser]) blank node bundling the details of a license offer. A license offer can contain information regarding the specific license URI (<code>license</code>), the actor (<code>cc:waivedBy</code>, etc).		* '''licenseOffer''': The URI or (as generated by the [http://labs.creativecommons.org/license/zero beta CC0 chooser]) blank node bundling the details of a license offer. A license offer can contain information regarding the specific license URI (<code>license</code>), the actor (<code>cc:waivedBy</code>, etc).

Nathan Yergler: /* Waiving Rights */

2008-04-15T19:25:13Z

Waiving Rights

← Older revision		Revision as of 19:25, 15 April 2008
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	<pre>		<pre>
	<p xmlns:cc="http://creativecommons.org/ns#"		<p xmlns:cc="http://creativecommons.org/ns#"
	xmlns:dc="http://purl.org/dc/elements/1.1/" ~~about="http://example.org/~auser/brilliance"~~ rel="cc:licenseOffer">		xmlns:dc="http://purl.org/dc/elements/1.1/"
			rel="cc:licenseOffer">
	<a rel="license"		<a rel="license"
	href="http://labs.creativecommons.org/licenses/zero/1.0/" style="text-decoration:none;">		href="http://labs.creativecommons.org/licenses/zero/1.0/" style="text-decoration:none;">
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	As you can see, this metadata makes statements about both the work and the person waiving their rights over the work.		As you can see, this metadata makes statements about both the work and the person waiving their rights over the work.


	= Publishers =		= Publishers =

Mike Linksvayer at 21:41, 14 April 2008

2008-04-14T21:41:35Z

← Older revision		Revision as of 21:41, 14 April 2008
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	{{Draft}}		{{Draft}}
	[[Category:~~CCZero]]~~		[[Category:CC0]]
	~~[[Category:Public Domain~~]]
	__TOC__		__TOC__

	~~CC∅~~ provides a framework that enables people to		[[CC0]] provides a framework that enables people to WAIVE all copyrights and related or neighboring interests that you have over a work. You can only do this if you hold [http://wiki.creativecommons.org/Before_Licensing#Make_sure_you_have_the_rights the necessary rights] for the work.

	* (a) ASSERT that a work is free of copyright as a matter of fact, for example, because the work [http://en.wikipedia.org/wiki/Public_Domain#Expiration is old enough] to be in the public domain, or because the work is in a class not protected by copyright such as [http://en.wikipedia.org/wiki/Copyright_status_of_work_by_the_U.S._government U.S. government works]. Curators and publishers of public domain material may be well placed to make such an assertion.		This page describes the metadata used to describe CC0 works along with suggestions for publishers who wish to use CC0.

	OR

	* (b) WAIVE all copyrights and related or neighboring interests that you have over a work. You can only do this if you hold [http://wiki.creativecommons.org/Before_Licensing#Make_sure_you_have_the_rights the necessary rights] for the work.

	This page describes the metadata used to describe ~~these two complementary paths~~ along with suggestions for publishers who wish to use ~~CC∅~~.

	= Metadata =		= Metadata =

	~~CC∅~~ introduces four new predicates in the Creative Commons [http://creativecommons.org/ns namespace].		CC0 introduces four new predicates in the Creative Commons [http://creativecommons.org/ns namespace].

	* '''licenseOffer''': The URI or (as generated by the [http://labs.creativecommons.org/license/zero beta ~~CC∅~~ chooser]) blank node bundling the details of a license offer ~~or assertion~~. A license offer can contain information regarding the specific license URI (<code>license</code>), the actor (~~<code>cc:assertedBy</code> or~~ <code>cc:waivedBy</code>, etc).		* '''licenseOffer''': The URI or (as generated by the [http://labs.creativecommons.org/license/zero beta CC0 chooser]) blank node bundling the details of a license offer. A license offer can contain information regarding the specific license URI (<code>license</code>), the actor (<code>cc:waivedBy</code>, etc).
	* '''assertedBy''': The URI of the actor asserting that a work is free of legal restrictions.
	* '''waivedBy''': The URI of the actor (rights holder) waiving all legal rights to a work.		* '''waivedBy''': The URI of the actor (rights holder) waiving all legal rights to a work.
	* '''assertionBasis''': The URI or literal text description for the basis of the license assertion.

	~~Additionally, the beta chooser uses two URIs to denote possible basis for asserting CC∅ over a work:~~

	* '''us_1923''': Works created before 1923 in the US are in the public domain; this URI completes the <code>(<work>, cc:assertionBasis, <reason>)</code> triple.
	* '''us_govt''': Works created by the US government are in the public domain; this URI completes the <code>(<work>, cc:assertionBasis, <reason>)</code> triple.

	== Examples ==		== Examples ==

	The ~~CC∅~~ application returns HTML with [[RDFa\|embedded metadata]] describing the role the user has selected, along with any additional metadata provided.		The CC0 application returns HTML with [[RDFa\|embedded metadata]] describing the role the user has selected, along with any additional metadata provided.

	=== Waiving Rights ===		=== Waiving Rights ===
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	xmlns:dc="http://purl.org/dc/elements/1.1/" about="http://example.org/~auser/brilliance" rel="cc:licenseOffer">		xmlns:dc="http://purl.org/dc/elements/1.1/" about="http://example.org/~auser/brilliance" rel="cc:licenseOffer">
	<a rel="license"		<a rel="license"
	href="http://labs.creativecommons.org/licenses/zero~~-waive~~/1.0~~/us~~/" style="text-decoration:none;">		href="http://labs.creativecommons.org/licenses/zero/1.0/" style="text-decoration:none;">
	<img src="http://labs.creativecommons.org/zero/images/88x31/cc-zero.png" border="0" alt="CC0" /></a>		<img src="http://labs.creativecommons.org/zero/images/88x31/cc-zero.png" border="0" alt="CC0" /></a>
	<br/>To the extent possible under law, <a rel="cc:waivedBy" href="http://example.com/~auser">		<br/>To the extent possible under law, <a rel="cc:waivedBy" href="http://example.com/~auser">
	<span about="http://example.com/~auser" property="dc:title">A. User</span></a> has <a rel="license"		<span about="http://example.com/~auser" property="dc:title">A. User</span></a> has <a rel="license"
	href="http://labs.creativecommons.org/licenses/zero~~-waive~~/1.0~~/us~~/">waived</a>		href="http://labs.creativecommons.org/licenses/zero/1.0/">waived</a>
	all copyright, moral rights, database rights, and any other rights that		all copyright, moral rights, database rights, and any other rights that
	might be asserted over <a href="http://example.org/~auser/brilliance"><span about="http://example.org/~auser/brilliance" property="dc:title">Brilliance Described</span></a>.		might be asserted over <a href="http://example.org/~auser/brilliance"><span about="http://example.org/~auser/brilliance" property="dc:title">Brilliance Described</span></a>.
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	<http://example.org/~auser/brilliance> <http://purl.org/dc/elements/1.1/title> "Brilliance Described" .		<http://example.org/~auser/brilliance> <http://purl.org/dc/elements/1.1/title> "Brilliance Described" .

	_:n0 <http://www.w3.org/1999/xhtml/vocab#license> <http://labs.creativecommons.org/licenses/zero~~-waive~~/1.0~~/us~~/> .		_:n0 <http://www.w3.org/1999/xhtml/vocab#license> <http://labs.creativecommons.org/licenses/zero/1.0/> .
	_:n0 <http://creativecommons.org/ns#waivedBy> <http://example.com/~auser> .		_:n0 <http://creativecommons.org/ns#waivedBy> <http://example.com/~auser> .

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	As you can see, this metadata makes statements about both the work and the person waiving their rights over the work.		As you can see, this metadata makes statements about both the work and the person waiving their rights over the work.

	~~=== Asserting a Work's Freedom ===~~

	~~Alternately, a user asserting that a work is free of legal restrictions:~~

	~~<pre>~~
	~~<p xmlns:cc="http://creativecommons.org/ns#"~~
	~~xmlns:dc="http://purl.org/dc/elements/1.1/"~~
	~~about="http://example.com/~auser/brilliance" rel="cc:licenseOffer">~~
	~~<a rel="license"~~
	~~href="http://labs.creativecommons.org/licenses/zero-assert/1.0/us/" style="text-decoration:none;">~~
	~~<img src="http://labs.creativecommons.org/zero/images/88x31/cc-zero.png" border="0" alt="" />~~
	~~</a>~~
	~~<br/><a rel="cc:assertedBy" href="http://example.com/~fbar">~~
	<span about="http://example.com/~fbar" property="dc:title">F. Bar</span></a> asserts <a href="http://example.com/~auser/brilliance"><span about="http://example.com/~auser/brilliance" property="dc:title">Brilliance Described</span></a> is <a rel="license"
	~~href="http://labs.creativecommons.org/licenses/zero-assert/1.0/us/">free~~
	~~of any copyrights</a>; <a href="http://creativecommons.org/ns#us_1923" rel="cc:assertionBasis">the work was created in the U.S. before 1923</a></p>~~
	~~</pre>~~

	~~Described in N3, the triples encoded in the HTML above are:~~

	~~<pre>~~
	~~<http://example.com/~auser/brilliance> <http://creativecommons.org/ns#licenseOffer> _:n0 .~~
	~~<http://example.com/~auser/brilliance> <http://purl.org/dc/elements/1.1/title> "Brilliance Described" .~~

	~~_:n0 <http://www.w3.org/1999/xhtml/vocab#license> <http://labs.creativecommons.org/licenses/zero-assert/1.0/us/> .~~
	~~_:n0 <http://creativecommons.org/ns#assertedBy> <http://example.com/~fbar> .~~
	~~_:n0 <http://creativecommons.org/ns#assertionBasis> <http://creativecommons.org/ns#us_1923> .~~

	~~<http://example.com/~fbar> <http://purl.org/dc/elements/1.1/title> "F. Bar" .~~

	~~</pre>~~

	= Publishers =		= Publishers =

	Creative Commons recommends marking works published under ~~CC∅~~ with [[RDFa\|embedded metadata]]. Metadata allows search engines and web software to find structured information about pages. The minimal recommended case is specifying ~~CC∅~~ as the license. Note ~~CC∅~~ is ~~not~~ a license but provides similar information regarding re-use rights. Therefore we reuse the existing, supported infrastructure.		Creative Commons recommends marking works published under CC0 with [[RDFa\|embedded metadata]]. Metadata allows search engines and web software to find structured information about pages. The minimal recommended case is specifying CC0 as the license. Note CC0 is technically a waiver rather than a license but provides similar information regarding re-use rights. Therefore we reuse the existing, supported infrastructure.

	For example:		For example:
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	</pre>		</pre>

	Additional metadata may be specified using the ~~<code>assertedBy</code> or~~ <code>waivedBy</code> ~~predicates. Each~~ specifies a URI; publishers are encouraged to provide additional metadata about the actor at that location.		Additional metadata may be specified using the <code>waivedBy</code> predicate, which specifies a URI; publishers are encouraged to provide additional metadata about the actor at that location.

Mike Linksvayer: CCZero Technical Overview moved to CC0 Technical Overview

2008-04-14T21:35:59Z

CCZero Technical Overview moved to CC0 Technical Overview

← Older revision	Revision as of 21:35, 14 April 2008
(No difference)

Nathan Yergler at 23:30, 17 January 2008

2008-01-17T23:30:50Z

← Older revision		Revision as of 23:30, 17 January 2008
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	[[Category:CCZero]]		[[Category:CCZero]]
	[[Category:Public Domain]]		[[Category:Public Domain]]
			__TOC__

	CC∅ provides a framework that enables people to		CC∅ provides a framework that enables people to

	* (a) ASSERT that a work ~~has no legal restrictions attached~~ to it, OR		* (a) ASSERT that a work is free of copyright as a matter of fact, for example, because the work [http://en.wikipedia.org/wiki/Public_Domain#Expiration is old enough] to be in the public domain, or because the work is in a class not protected by copyright such as [http://en.wikipedia.org/wiki/Copyright_status_of_work_by_the_U.S._government U.S. government works]. Curators and publishers of public domain material may be well placed to make such an assertion.
	* (b) WAIVE ~~any~~ rights ~~associated with a~~ work ~~so it has not legal restrictions attached to it~~
			OR

			* (b) WAIVE all copyrights and related or neighboring interests that you have over a work. You can only do this if you hold [http://wiki.creativecommons.org/Before_Licensing#Make_sure_you_have_the_rights the necessary rights] for the work.

	This page describes the metadata used to describe these two complementary paths along with suggestions for publishers who wish to use CC∅.		This page describes the metadata used to describe these two complementary paths along with suggestions for publishers who wish to use CC∅.
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	= Metadata =		= Metadata =

	CC∅ introduces ~~two~~ new ~~terms~~ in the Creative Commons [http://creativecommons.org/ns namespace].		CC∅ introduces four new predicates in the Creative Commons [http://creativecommons.org/ns namespace].

			* '''licenseOffer''': The URI or (as generated by the [http://labs.creativecommons.org/license/zero beta CC∅ chooser]) blank node bundling the details of a license offer or assertion. A license offer can contain information regarding the specific license URI (<code>license</code>), the actor (<code>cc:assertedBy</code> or <code>cc:waivedBy</code>, etc).
	* '''assertedBy''': The URI of the actor asserting that a work is free of legal restrictions.		* '''assertedBy''': The URI of the actor asserting that a work is free of legal restrictions.
	* '''waivedBy''': The URI of the actor (rights holder) waiving all legal rights to a work.		* '''waivedBy''': The URI of the actor (rights holder) waiving all legal rights to a work.
			* '''assertionBasis''': The URI or literal text description for the basis of the license assertion.

			Additionally, the beta chooser uses two URIs to denote possible basis for asserting CC∅ over a work:

			* '''us_1923''': Works created before 1923 in the US are in the public domain; this URI completes the <code>(<work>, cc:assertionBasis, <reason>)</code> triple.
			* '''us_govt''': Works created by the US government are in the public domain; this URI completes the <code>(<work>, cc:assertionBasis, <reason>)</code> triple.

	== Examples ==		== Examples ==
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	<pre>		<pre>
	<p about="http://example.~~com~~/~auser/brilliance">		<p xmlns:cc="http://creativecommons.org/ns#"
			xmlns:dc="http://purl.org/dc/elements/1.1/" about="http://example.org/~auser/brilliance" rel="cc:licenseOffer">
	<a rel="license"		<a rel="license"
	href="http://labs.creativecommons.org/licenses/zero/1.0/" style="text-decoration:none;">		href="http://labs.creativecommons.org/licenses/zero-waive/1.0/us/" style="text-decoration:none;">
	<img src="http://labs.creativecommons.org/zero/images/88x31/cc-zero.png" border="0" alt="CC0" /></a>		<img src="http://labs.creativecommons.org/zero/images/88x31/cc-zero.png" border="0" alt="CC0" /></a>
	<br/>To the extent possible under law, <a rel="cc:waivedBy" href="http://example.com/~auser">		<br/>To the extent possible under law, <a rel="cc:waivedBy" href="http://example.com/~auser">
	<span about="http://example.com/~auser" property="dc:title">A. User</span></a> has <a rel="license"		<span about="http://example.com/~auser" property="dc:title">A. User</span></a> has <a rel="license"
	href="http://labs.creativecommons.org/licenses/zero/1.0/">waived</a>		href="http://labs.creativecommons.org/licenses/zero-waive/1.0/us/">waived</a>
	all copyright, moral rights, database rights, and any other rights that		all copyright, moral rights, database rights, and any other rights that
	might be asserted over <a href="http://example.~~com~~/~auser/brilliance">Brilliance Described</a>.		might be asserted over <a href="http://example.org/~auser/brilliance"><span about="http://example.org/~auser/brilliance" property="dc:title">Brilliance Described</span></a>.
	</pre>		</p></pre>

	Described in [http://en.wikipedia.org/wiki/Notation_3 N3], the triples encoded in the above HTML are:		Described in [http://en.wikipedia.org/wiki/Notation_3 N3], the triples encoded in the above HTML are:

	<pre>		<pre>
	<http://example.~~com~~/~auser/brilliance> <http://www.w3.org/1999/xhtml/vocab#license> <http://labs.creativecommons.org/licenses/zero/1.0/> .		<http://example.org/~auser/brilliance> <http://creativecommons.org/ns#licenseOffer> _:n0 .
	~~<http~~:~~//example.com/~auser/brilliance>~~ <http://creativecommons.org/ns#waivedBy> <http://example.com/~auser> .		<http://example.org/~auser/brilliance> <http://purl.org/dc/elements/1.1/title> "Brilliance Described" .

			_:n0 <http://www.w3.org/1999/xhtml/vocab#license> <http://labs.creativecommons.org/licenses/zero-waive/1.0/us/> .
			_:n0 <http://creativecommons.org/ns#waivedBy> <http://example.com/~auser> .

	<http://example.com/~auser> <http://purl.org/dc/elements/1.1/title> "A. User" .		<http://example.com/~auser> <http://purl.org/dc/elements/1.1/title> "A. User" .
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	<pre>		<pre>
	<p about="http://example.com/~auser/brilliance">		<p xmlns:cc="http://creativecommons.org/ns#"
			xmlns:dc="http://purl.org/dc/elements/1.1/"
			about="http://example.com/~auser/brilliance" rel="cc:licenseOffer">
	<a rel="license"		<a rel="license"
	href="http://labs.creativecommons.org/licenses/zero/1.0/" style="text-decoration:none;">		href="http://labs.creativecommons.org/licenses/zero-assert/1.0/us/" style="text-decoration:none;">
	<img src="http://labs.creativecommons.org/zero/images/88x31/cc-zero.png" border="0" alt="" />		<img src="http://labs.creativecommons.org/zero/images/88x31/cc-zero.png" border="0" alt="" />
	</a>		</a>
	<br/><a rel="cc:assertedBy" href="http://example.com/~~~foobar~~">		<br/><a rel="cc:assertedBy" href="http://example.com/~fbar">
	<span about="http://example.com/~~~foobar~~" property="dc:title">F. Bar</span></a> asserts		<span about="http://example.com/~fbar" property="dc:title">F. Bar</span></a> asserts <a href="http://example.com/~auser/brilliance"><span about="http://example.com/~auser/brilliance" property="dc:title">Brilliance Described</span></a> is <a rel="license"
	<a href="http://example.com/~auser/brilliance">Brilliance Described</a> is		href="http://labs.creativecommons.org/licenses/zero-assert/1.0/us/">free
	<a rel="license"		of any copyrights</a>; <a href="http://creativecommons.org/ns#us_1923" rel="cc:assertionBasis">the work was created in the U.S. before 1923</a></p>
	href="http://labs.creativecommons.org/licenses/zero/1.0/">free
	of any copyrights</a>.
	</p>
	</pre>		</pre>

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	<pre>		<pre>
	<http://example.com/~auser/brilliance> <http://www.w3.org/1999/xhtml/vocab#license> <http://labs.creativecommons.org/licenses/zero/1.0/> .		<http://example.com/~auser/brilliance> <http://creativecommons.org/ns#licenseOffer> _:n0 .
	<http://example.com/~~~auser~~/~~brilliance~~> <http://creativecommons.org/ns#~~assertedBy~~> <http://example.com/~~~foobar~~> .		<http://example.com/~auser/brilliance> <http://purl.org/dc/elements/1.1/title> "Brilliance Described" .

			_:n0 <http://www.w3.org/1999/xhtml/vocab#license> <http://labs.creativecommons.org/licenses/zero-assert/1.0/us/> .
			_:n0 <http://creativecommons.org/ns#assertedBy> <http://example.com/~fbar> .
			_:n0 <http://creativecommons.org/ns#assertionBasis> <http://creativecommons.org/ns#us_1923> .

			<http://example.com/~fbar> <http://purl.org/dc/elements/1.1/title> "F. Bar" .

	~~<http://example.com/~foobar> <http://purl.org/dc/elements/1.1/title> "F. Bar" .~~
	</pre>		</pre>

Mike Linksvayer at 00:22, 16 January 2008

2008-01-16T00:22:04Z

← Older revision		Revision as of 00:22, 16 January 2008
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	{{Draft}}		{{Draft}}
			[[Category:CCZero]]
			[[Category:Public Domain]]

	CC∅ provides a framework that enables people to		CC∅ provides a framework that enables people to

Nathan Yergler at 20:16, 7 January 2008

2008-01-07T20:16:17Z

← Older revision		Revision as of 20:16, 7 January 2008
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	This page describes the metadata used to describe these two complementary paths along with suggestions for publishers who wish to use CC∅.		This page describes the metadata used to describe these two complementary paths along with suggestions for publishers who wish to use CC∅.

	== Metadata ==		= Metadata =

	CC∅ introduces two new terms in the Creative Commons [http://creativecommons.org/ns namespace].		CC∅ introduces two new terms in the Creative Commons [http://creativecommons.org/ns namespace].
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	* '''waivedBy''': The URI of the actor (rights holder) waiving all legal rights to a work.		* '''waivedBy''': The URI of the actor (rights holder) waiving all legal rights to a work.

	=== Examples ===		== Examples ==

	The CC∅ application returns HTML with [[RDFa\|embedded metadata]] describing the role the user has selected, along with any additional metadata provided. For example, a user waiving all rights to a work:		The CC∅ application returns HTML with [[RDFa\|embedded metadata]] describing the role the user has selected, along with any additional metadata provided.

			=== Waiving Rights ===

			For example, a user waiving all rights to a work:

	<pre>		<pre>
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	As you can see, this metadata makes statements about both the work and the person waiving their rights over the work.		As you can see, this metadata makes statements about both the work and the person waiving their rights over the work.

			=== Asserting a Work's Freedom ===

	Alternately, a user asserting that a work is free of legal restrictions:		Alternately, a user asserting that a work is free of legal restrictions:
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	</pre>		</pre>

	== Publishers ==		= Publishers =

	Creative Commons recommends marking works published under CC∅ with [[RDFa\|embedded metadata]]. Metadata allows search engines and web software to find structured information about pages. The minimal recommended case is specifying CC∅ as the license. Note CC∅ is not a license but provides similar information regarding re-use rights. Therefore we reuse the existing, supported infrastructure.		Creative Commons recommends marking works published under CC∅ with [[RDFa\|embedded metadata]]. Metadata allows search engines and web software to find structured information about pages. The minimal recommended case is specifying CC∅ as the license. Note CC∅ is not a license but provides similar information regarding re-use rights. Therefore we reuse the existing, supported infrastructure.

Nathan Yergler: /* Examples */

2008-01-07T20:15:11Z

Examples

@@ Line 30: / Line 30: @@
 might be asserted over <a href="http://example.com/~auser/brilliance">Brilliance Described</a>.
 </pre>
 Alternately, a user asserting that a work is free of legal restrictions:
@@ Line 46: / Line 57: @@
      of any copyrights</a>.
 </p>
 </pre>

Nathan Yergler at 20:02, 7 January 2008

2008-01-07T20:02:34Z

← Older revision		Revision as of 20:02, 7 January 2008
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	=== Examples ===		=== Examples ===

	The CC∅ application returns HTML with [[RDFa embedded metadata]] describing the role the user has selected, along with any additional metadata provided. For example, a user waiving all rights to a work:		The CC∅ application returns HTML with [[RDFa\|embedded metadata]] describing the role the user has selected, along with any additional metadata provided. For example, a user waiving all rights to a work:

	<pre>		<pre>
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	== Publishers ==		== Publishers ==

	Creative Commons recommends marking works published under CC∅ with [[RDFa embedded metadata]]. Metadata allows search engines and web software to find structured information about pages. The minimal recommended case is specifying CC∅ as the license. Note CC∅ is not a license but provides similar information regarding re-use rights. Therefore we reuse the existing, supported infrastructure.		Creative Commons recommends marking works published under CC∅ with [[RDFa\|embedded metadata]]. Metadata allows search engines and web software to find structured information about pages. The minimal recommended case is specifying CC∅ as the license. Note CC∅ is not a license but provides similar information regarding re-use rights. Therefore we reuse the existing, supported infrastructure.

	For example:		For example:

Nathan Yergler: /* Publishers */

2008-01-07T19:48:14Z

Publishers

← Older revision		Revision as of 19:48, 7 January 2008
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	== Publishers ==		== Publishers ==

	Creative Commons recommends marking works published under CC∅ with embedded metadata. Metadata allows search engines and web software to find structured information about pages. The minimal recommended case is specifying CC∅ as the license~~<ref name="license">~~CC∅ is not a license but provides similar information regarding re-use rights. Therefore we reuse the existing, supported infrastructure.</~~ref~~>.		Creative Commons recommends marking works published under CC∅ with [[RDFa embedded metadata]]. Metadata allows search engines and web software to find structured information about pages. The minimal recommended case is specifying CC∅ as the license. Note CC∅ is not a license but provides similar information regarding re-use rights. Therefore we reuse the existing, supported infrastructure.

			For example:

			<pre>
			All legal rights to this page have <a rel="license"
			href="http://labs.creativecommons.org/licenses/zero/1.0/">been waived</a>.
			</pre>

			Additional metadata may be specified using the <code>assertedBy</code> or <code>waivedBy</code> predicates. Each specifies a URI; publishers are encouraged to provide additional metadata about the actor at that location.