Authors Mike Linksvayer
License CC-BY-1.0
Creative Commons: Digital Rights Description
Dublin Core 2003 Tutorial
Mike Linksvayer
Creative Commons Metadata Example (1)
<rdf:RDF xmlns="http://web.resource.org/cc/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<Work rdf:about="http://mirrors.creativecommons.org/dc2003/">
<dc:title>Dublin Core 2003 Tutorial: Creative Commons Digital Rights Description</dc:title>
<dc:date>2003-10-01</dc:date>
<dc:description>Slides and audio recording from Creative Commons tutorial presented at Dublin
Dublin Core
Core
2003.</dc:description>
<dc:creator><Agent>
<dc:title>Mike Linksvayer</dc:title>
</Agent></dc:creator>
<dc:type rdf:resource="http://purl.org/dc/dcmitype/Text" />
<dc:type rdf:resource="http://purl.org/dc/dcmitype/Sound" />
<license rdf:resource="http://creativecommons.org/licenses/by/1.0/" />
</Work>
<License rdf:about="http://creativecommons.org/licenses/by/1.0/">
<permits rdf:resource="http://web.resource.org/cc/Reproduction" />
<permits rdf:resource="http://web.resource.org/cc/Distribution" />
<requires rdf:resource="http://web.resource.org/cc/Notice" />
<requires rdf:resource="http://web.resource.org/cc/Attribution"
rdf:resource="http://web.resource.org/cc/Attribution" />
/>
<permits rdf:resource="http://web.resource.org/cc/DerivativeWorks" />
</License>
</rdf:RDF>
Creative Commons Metadata Example (2)
<rdf:RDF xmlns="http://web.resource.org/cc/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<Work rdf:about="http://mirrors.creativecommons.org/dc2003/">
<dc:title>Dublin Core 2003 Tutorial: Creative Commons Digital Rights Description</dc:title>
<dc:date>2003-10-01</dc:date>
<dc:description>Slides and audio recording from Creative Commons tutorial presented at Dublin Core 2003.</dc:description>
<dc:creator><Agent>
<dc:title>Mike Linksvayer</dc:title>
Linksvayer</dc:title>
</Agent></dc:creator>
<dc:type rdf:resource="http://purl.org/dc/dcmitype/Text" />
<dc:type rdf:resource="http://purl.org/dc/dcmitype/Sound" />
<license rdf:resource="http://creativecommons.org/licenses/by/1.0/" />
</Work>
<License rdf:about="http://creativecommons.org/licenses/by/1.0/">
<permits rdf:resource="http://web.resource.org/cc/Reproduction" />
<permits rdf:resource="http://web.resource.org/cc/Distribution" />
<requires rdf:resource="http://web.resource.org/cc/Notice" />
<requires rdf:resource="http://web.resource.org/cc/Attribution" />
<permits rdf:resource="http://web.resource.org/cc/DerivativeWorks" />
</License>
</rdf:RDF>
Creative Commons Metadata Example (3)
Building on the shoulders of giants ...
• Dublin Core
• RDF
• Semantic Web
... we hope
dc:title
A title or name for the resource.
dc:description
A text description of the resource.
dc:subject
Key words and phrases describing the topic of the
resource.
dc:publisher
A cc:Agent responsible for making the resource
available.
dc:creator
A cc:Agent who created the resource.
dc:contributor
A cc:Agent who contributed to the creation of the
resource.
dc:rights
The cc:Agent who holds the copyright on the resource.
dc:date
A copyright date for the resource.
dc:format
The Media Type of the resource. Examples:
“text/plain”, “audio/mpeg”.
dc:type
The DCMI Type of the resource. Examples:
http://purl.org/dc/dcmitype/Image,
http://purl.org/dc/dcmitype/Text.
Eagerly awaiting MovingImage and StillImage!
dc:source, cc:derivativeWork
A Work that the resource was derived from.
cc:license
A copyright license for the resource, a structured
cc:License. If there are two cc:licenses, then the
licensee gets to pick which to use.
cc:Agent, cc:License
An agent is a person or thing that does stuff!
Agents and Licenses may be also be described using
Dublin Core elements.
cc:License
• Permissions – rights granted by the license.
• Prohibitions – things prohibited by the license.
• Requirements – restriction imposed by the license.
License Permissions
Reproduction
the work may be reproduced
Distribution
the work (and, if authorized, derivative works) may
be distributed, publicly displayed, and publicly
performed
DerivativeWorks
derivative works may be created and reproduced
License Prohibitions
CommercialUse
rights may not be exercised for commercial purposes
License Requirements
Notice
copyright and license notices must be kept intact
Attribution
credit must be given to copyright holder and/or
author
ShareAlike
derivative works, if authorized, must be licensed
under the same terms as the work
License Metadata Disclaimer
Note: these characteristics are advisory only. They are
designed to describe the characteristics of a license;
they are not themselves a license. For the specific
implementation of each characteristic, as well as
other details which may not be encoded in the RDF,
you must consult the text of the actual license. A
license should always be linked from these metadata
terms.
Creative Commons Metadata Example (1)
(again)
<rdf:RDF xmlns="http://web.resource.org/cc/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<Work rdf:about="http://mirrors.creativecommons.org/dc2003/">
<dc:title>Dublin Core 2003 Tutorial: Creative Commons Digital Rights Description</dc:title>
<dc:date>2003-10-01</dc:date>
<dc:description>Slides and audio recording from Creative Commons tutorial presented at Dublin
Dublin Core
Core
2003.</dc:description>
<dc:creator><Agent>
<dc:title>Mike Linksvayer</dc:title>
</Agent></dc:creator>
<dc:type rdf:resource="http://purl.org/dc/dcmitype/Text" />
<dc:type rdf:resource="http://purl.org/dc/dcmitype/Sound" />
<license rdf:resource="http://creativecommons.org/licenses/by/1.0/" />
</Work>
<License rdf:about="http://creativecommons.org/licenses/by/1.0/">
<permits rdf:resource="http://web.resource.org/cc/Reproduction" />
<permits rdf:resource="http://web.resource.org/cc/Distribution" />
<requires rdf:resource="http://web.resource.org/cc/Notice" />
<requires rdf:resource="http://web.resource.org/cc/Attribution"
rdf:resource="http://web.resource.org/cc/Attribution" />
/>
<permits rdf:resource="http://web.resource.org/cc/DerivativeWorks" />
</License>
</rdf:RDF>
cc:“Controversy”
• dc:rights
• cc:License metadata included
• RDF in HTML
Creative Commons is not a metadata standards
organization. We are committed to cooperating with
DCMI and other communities. Our interest is in
leveraging metadata to make our licenses more
useful, not in leveraging our licenses to influence
metadata standards.
dc:rights (Creative Commons)
The cc:Agent who holds the copyright on the resource.
<rdf:Description>
<dc:date>2002</dc:date>
<cc:license rdf:resource="http://flf.org/licenses/whiteHouseLawn" />
<dc:rights><Agent>
<dc:title>Gnomovision Records</dc:title>
</Agent></dc:rights>
</rdf:Description>
dc:rights (DCMI Metadata Terms)
Information about rights held in and over the resource.
Typical use:
<rdf:Description>
<dc:rights>(C) 2002 Gnomovision Records. All rights reserved.</dc:rights>
</rdf:Description>
Or a structured version thereof.
cc:License metadata included
<rdf:RDF xmlns="http://web.resource.org/cc/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<Work rdf:about="http://mirrors.creativecommons.org/dc2003/">
<dc:title>Dublin Core 2003 Tutorial: Creative Commons Digital Rights Description</dc:title>
<dc:date>2003-10-01</dc:date>
<dc:description>Slides and audio recording from Creative Commons tutorial presented at Dublin
Dublin Core
Core
2003.</dc:description>
<dc:creator><Agent>
<dc:title>Mike Linksvayer</dc:title>
</Agent></dc:creator>
<dc:type rdf:resource="http://purl.org/dc/dcmitype/Text" />
<dc:type rdf:resource="http://purl.org/dc/dcmitype/Sound" />
<license rdf:resource="http://creativecommons.org/licenses/by/1.0/" />
</Work>
<License rdf:about="http://creativecommons.org/licenses/by/1.0/">
<permits rdf:resource="http://web.resource.org/cc/Reproduction" />
<permits rdf:resource="http://web.resource.org/cc/Distribution" />
<requires rdf:resource="http://web.resource.org/cc/Notice" />
<requires rdf:resource="http://web.resource.org/cc/Attribution"
rdf:resource="http://web.resource.org/cc/Attribution" />
/>
<permits rdf:resource="http://web.resource.org/cc/DerivativeWorks" />
</License>
</rdf:RDF>
RDF in HTML comments
<a href="http://creativecommons.org/licenses/by/1.0/"><img alt="Creative Commons License" border="0"
src="http://creativecommons.org/images/public/somerights.gif" /></a><br />
This work is licensed under a
<a href="http://creativecommons.org/licenses/by/1.0/">Creative Commons License</a>.
<!--
<rdf:RDF xmlns="http://web.resource.org/cc/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<Work rdf:about="">
<license rdf:resource="http://creativecommons.org/licenses/by/1.0/" />
</Work>
<License rdf:about="http://creativecommons.org/licenses/by/1.0/">
<permits rdf:resource="http://web.resource.org/cc/Reproduction" />
<permits rdf:resource="http://web.resource.org/cc/Distribution" />
<requires rdf:resource="http://web.resource.org/cc/Notice" />
<requires rdf:resource="http://web.resource.org/cc/Attribution"
rdf:resource="http://web.resource.org/cc/Attribution" />
/>
<permits rdf:resource="http://web.resource.org/cc/DerivativeWorks" />
</License>
</rdf:RDF>
-->
RDF in HTML comments (2)
• Zero cost to user – copies metadata with HTML for
license button
• RDF
• Validates (HTML ok)
Versus
• LINK
• META
• Syntactic Inclusion (Holy Grail)
Metadata Adoption – Quantity and Quality
• Get the user to create good metadata without
knowing it, or feeling the pain – as a side effect of
other tasks. Example: Creative Commons License
Selection
• Let other users (“fans”) create good metadata.
Examples: Amazon book reviews, Bitzi, IMDB,
MusicBrainz, Open Directory Project
Creative Commons License Selection Demo
http://creativecommons.org/license/
Creative Commons Web Application Integration
Facilitate Creative Commons license selection at other
sites, in other applications.
• Almost no programming
• Branding with custom image, stylesheet
• Always get the freshest licenses
Creative Commons Metadata-aware Search
Kludges:
• AlltheWeb – music link:http://creativecommons.org/licenses
• Google – music “creative commons”
We want:
A web scale search engine that allows license filtering
of results, and displays license properties in results.
Substitute any useful metadata for “license” above!
Creative Commons Metadata & OAI
• Project RoMEO (Rights Metadata for Open archiving)
has done some initial work.
• Creative Commons participation on OAI-RIGHTS
committee.
Creative Commons Metadata & OAI (2)
Creative Commons RDF (Project RoMEO)
Creative Commons Metadata & OAI (3)
Creative Commons ODRL (Project RoMEO)
Creative Commons Metadata & P2P
• Make license information available to P2P
applications.
• Mechanism for removal of bogus license metadata.
• Simple, decentralized.
Creative Commons Metadata & P2P (Comic 1)
Creative Commons Metadata & P2P (Comic 2)
Creative Commons Metadata & P2P (Comic 3)
Creative Commons Metadata & P2P (Takedown 1)
Creative Commons Metadata & P2P (Takedown 2)
Creative Commons Metadata & P2P (Takedown 3)
Creative Commons Metadata & P2P (Takedown 4)
Creative Commons Metadata & P2P (final)
P2P metadata can be just as trustworthy and
accountable as web metadata ... if it's on the web.
Help! (Code Wanted 1)
Developer Aids, Libraries, and Specifications
• License metadata validation web application.
• License claim embedding specifications for more file
types.
• APIs for Creative Commons license metadata.
Help! (Code Wanted 2)
Content Creation Applications
• GUI for embedding license claims in files and
generating claim verification RDF.
• Build Creative Commons licensing into more content
creation applications.
Help! (Code Wanted 3)
Content Display, Player, and Sharing Applications
• Browser toolbar or plugin that extracts and displays
license metadata embedded in a page.
• Media player and file sharing applications that read,
verify, and display license claims embedded in files.
Help! (Code Wanted 4)
License-aware Search Applications
• Add license search to a major commercial search
engine.
• Write a custom Creative Commons license-aware
search engine.
Help! (DC2003 Special)
Can your metadata express “some rights reserved”?
Comments, Criticism, Requests for help, collaboration?
Mike Linksvayer
ml@creativecommons.org
cc-metadata
http://lists.ibiblio.org/mailman/listinfo/cc-metadata
http://creativecommons.org
These slides are licensed under the Creative Commons Attribution
Attribution license
license
<http://creativecommons.org/licenses/by/1.0/ >.