1. Frauke Ziedorn
Joint COOPEUS-ENVRI-EUDAT workshop on persistent
identifiers for open time series data
25th June 2013
DOI registration with DataCite

2. 2
• German National Library of Science and Technology. Scope: all areas of
engineering, as well as architecture, chemistry, information technology,
mathematics and physics.
• Evaluation by external international reviewers every 7 years (lastly 2011-02)
• Outcome (amongst others): Particularly worth mentioning is the operation
of the national DOI registration agency for referencing research data.
With it, the TIB offers an innovative and important service that is
acknowledged internationally.
The TIB

3. 3
A little History
• 2003:
DFG-funded Project of the TIB with World DataCenters
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.

4. 4
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.
• 2013:
• 17 members from 12 countries,
• 5 associated members,
• ~1.5 Million DOIs

5. 5
The DOI System
• 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

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International DOI
Foundation
DataCite
DataCite Member
Data CentreData CentreDatacenter
DataCite Member
Data CentreData CentreDatacenter
…
Managing Agent
TIB
Member
Associate
Members
10 DOI Registration
Agencies
DOI Infrastrukture

7. 7
DataCite Clients
• DataCite registers DOIs for
• Research data,
• Non-textual materials (e.g. videos, software, images),
• Grey literature.
• Mostly academic and non-commercial clients.
• Clients are responsible for data archival (= data centers).

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Requirements for the DOI registration
• Commitment to data persistence
• Metadata delivery
• Provision of landing pages
• Granularity of data (cite-worthy?)
• DOI syntax:
• Use opaque strings
• Use only: A-Z a-z 0-9 . : - _ /
http://www.datacite.org/resources -> DataCite Business Modells
Principles
doi:10.2314/529827735
Prefix Suffix

9. 9
DataCite Services
• Registration and updating of DOI names.
• Storage of metadata.
• Accessible via UI or API.
Metadata Store (MDS)

10. 10
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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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 und relationType attributes)
• Size
• Format
• Version
• Rights
• Description (with type attribute)
Optional Properties

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Cooperations
• 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).
• With ORCID:
• http://datacite.labs.orcid-eu.org/
ODIN Project: Claim your research data in your ORCID profile.

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Links
• http://datacite.org
DataCite‘s homepage.
• 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.

15. Thank you for your attention!