1. Frauke Ziedorn
IATUL Workshop 2013
Research Data Management: Finding our Role
6. December 2013
PIDs and DOI Registration with DataCite

2. 2
Background:
• Easier re-usability and verification of data
• Recognition for collection and documentation of data (Citation
Indeces)
• Compliance with funders‘ requirements (e.g German Research
Foundation)
• Avoiding duplication
• Motivation for new research
Why publish and cite research data?

3. 3
Persistent Identifier I
• DOI
• Citation of scientific publications
• Established in the scientific community
• Global resolving via any handle server or dx.doi.org/{doi}
• Persistence and data quality are guaranteed
• Handle
• Global referencing of data before publication
• Global resolving via any handle server
• No persistence or quality management

4. 4
Persistent Identifier II
• URN
• Referencing of local documents in a closed system ( e. g.
dissertations, thesis)
• Resolving only on server of publisher
• Persistence and data quality are guaranteed
• ARK
• Documents of all work stages
• Persistence declaration available; may be deleted
• Resolving only free of cost on server of publisher
• Quality management (metadata), no standards for
persistence

5. 5
The DOI® System
• International DOI Foundation was founded in 1998.
• The DOI system offers long-term persistence and
accessibility of data.
• Based on the Handle system.
• In May 2012 the DOI System ISO Standard 26324 was
published.
• Part of the quality control is mandatory metadata for
each object registered with a DOI.
DOI®, DOI.ORG® and shortDOI® are trademarks of the International DOI Foundation

6. 6
A little History
• 2003:
DFG-funded project of the TIB with World Data Centres
regarding the publication of research data.
• 2005:
TIB becomes the first DOI registration agency for research
data. From the beginning, grey literature is also registrered.
• 2009-03:
Paris Memorandum regarding the cooperation of 6 European
information providers.
• 2009-12:
DataCite is founded in London with 7 members.

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DataCite
• Growing demand to make data citable.
• DataCite is an international consortium whose aims are
• to establish easier access to research data on the Internet
• to increase acceptance of research data as legitimate,
citable contributions to the scholarly record
• to support data archiving that will permit results to be
verified and re-purposed for future study.
• Developement of standards, worflows, and best practices.
• 2013:
• 18 members from 13 countries,
• 9 associated members,
• ~2.2 Million DOIs

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DataCite Members

9. 9
International DOI
Foundation
DataCite
DataCite Member
Data CentreData CentreDatacenter
DataCite Member
Data CentreData CentreDatacenter
…
Managing Agent
TIB
Member
Associate
Members
9 DOI Registration
Agencies
DOI System Infrastructure

10. 10
DataCite Services
• Registration and updating of DOI names.
• Storage of metadata.
• Accessible via UI or API.
Metadata Store (MDS)

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DataCite and Metadata
• Metadata make data discoverable.
• Long-term maintenance of metadata is an
important part of the persistence of an identifier.
• Schema is inspired by Dublin Core.
• Core value of the DataCite Metadata Schema:
Linking between data and related objects.
• Future vision:
Links between all related publications and objects.

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DataCite Metadata Schema
• Identifier (with type attribute)
• Creator (with type and nameIdentifier attributes)
• Title (with optional type attribute)
• Publisher
• PublicationYear
• Citation:
Creator (PublicationYear): Title. Publisher. Identifier
Mandatory Properties

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Citation
Creator (PublicationYear): Title. Publisher. Identifier
Dataset:
Kuhlmann, H et al. (2009):
Age models, iron intensity, magnetic susceptibility records and dry bulk density of
sediment cores from around the Canary Islands. PANGAEA - Data Publisher for
Earth & Environmental Science.
doi:10.1594/PANGAEA.727522,
Is supplement to this article:
Kuhlmann, Holger; Freudenthal, Tim; Helmke, Peer; Meggers, Helge
(2004): Reconstruction of paleoceanography off NW Africa during the last 40,000
years: influence of local and regional factors on sediment accumulation.
Marine Geology, 207(1-4), 209-224,
doi:10.1016/j.margeo.2004.03.017

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DataCite Metadata Schema
• Subject (with scheme attribute)
• Contributor (with type and nameIdentifier attributes)
• Date (with type attribute)
• Language
• ResourceType (with description attribute)
• AlternateIdentifier (with type attribute)
• RelatedIdentifier (with type and relationType attributes)
• Size
• Format
• Version
• Rights
• Description (with type attribute)
• GeoLocation (with point, box, and place)
Optional Properties

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DataCite Services
• Search engine for all metadata stored in the MDS.
• Filter options to refine the search.
Metadata Search

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DataCite Services
• Exposes metadata stored in the MDS using the Open Archives
Initiative Protocol for Metadata Harvesting (OAI-PMH).
• Different metadata formats are available.
• Service is open to everyone; harvesters include:
• TIB (GetInfo)
• Thomson Reuters (Data Citation Index)
• Elsevier (Exlibris)
OAI-PMH Data Provider

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Services in Cooperation with CrossRef
• http://crosscite.org/citeproc/
A Citation Formater which provides over 100 different formats
for citations.
• http://crosscite.org/cn/
With Content Negotiation it is possible to access different
media types of a registered object (machine-to-machine only).

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Content Negotiation
Resolving to a citation:
http://data.datacite.org/application/x-
datacite+text/10.5524/100005
Li, j; Zhang, G; Lambert, D; Wang, J (2011): Genomic data from
Emperor penguin. GigaScience.
http://dx.doi.org/10.5524/100005

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Content Negotiation
Resolving to RDF metadata:
http://data.datacite.org/application/rdf+xml/10.5524/100005
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:owl="http://www.w3.org/2002/07/owl#"
xmlns:j.0="http://purl.org/dc/terms/" > <rdf:Description
rdf:about="http://dx.doi.org/10.5524/100005">
<j.0:identifier>10.5524/100005</j.0:identifier> <j.0:creator>Li,
J</j.0:creator> <j.0:creator>Zhang, G</j.0:creator>
<j.0:creator>Wang, J</j.0:creator>
<owl:sameAs>doi:10.5524/100005</owl:sameAs>
<owl:sameAs>info:doi/10.5524/100005</owl:sameAs>
<j.0:publisher>GigaScience</j.0:publisher> <j.0:creator>Lambert,
D</j.0:creator> <j.0:date>2011</j.0:date> <j.0:title>Genomic data
from the Emperor penguin (Aptenodytes forsteri)</j.0:title>
</rdf:Description></rdf:RDF>

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DataCite new developements
• ORCID and DataCite Interoperability Network
(http://odin-project.eu/ )
• http://datacite.labs.orcid-eu.org/
Link datasets to your ORCID profile
• Inclusion of a DataCite interface in next version of D-Space

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Links
• http://schema.datacite.org
Access to all versions of the DataCite metadata schema, with documentation,
schema definition, and examples.
• http://search.datacite.org
Search engine for all metadata stored by DataCite.
• http://oai.datacite.org
Datacite‘s OAI-PMH service which allows access to the metadata.
• http://data.datacite.org
DataCite Content Service exposes metadata using multiple formats.
• http://test.datacite.org
DataCite‘s test system includes all services, like MDS, Search, Content
Negotiation etc.
• http://stats.datacite.org
Display of registration and resolving statistics.

22. Thank you for your attention!