This webinar discusses permanent unique identifiers (PUIDs), specifically digital object identifiers (DOIs). It explains that PUIDs are needed for accurate identification, findability, accessibility, interoperability, and reproducibility of research objects. A PUID is a unique text string that permanently identifies a single research object. DOIs are a type of PUID that follow an international standard and have over 145 million objects registered in a global system. The webinar provides details on how to obtain and use DOIs through registration agencies to identify publications, data, and other research outputs.

1. FAO AIMS Webinar
28/06/2017
Marco Marsella
DataCite Executive
Board
DOIs in support
of research
activities

2. What is this webinar about?
• Why do we need Permanent Unique Identifiers (PIDs)?
• What is a PID and what characteristics does it have?
• Different types of PIDs
• Digital Object Identifiers (DOIs)
• How does it work?
• Advanced services
• DOI application domains

3. Why do we need Permanent Unique
Identifiers?
• Accurate identification of objects of interest
• Findability of information
• Accessibility of information
• Interoperability of information systems and processes
• Reusability of data
• Repeatability of experimental conditions
• Reliability of results
FAIR

4. What is a Permanent Unique Identifier (PUID)?
“A text string that unambiguously and permanently identifies a single object of interest”text string
A sequence of characters valid according to some syntax rules
single object of interest
One identifier corresponds to one and only one object
permanently
Once established, the association between the identifier and the object is
never broken
unambiguously
The identifier is all you need to get the associated object

5. Main characteristics of a PUID
• Unique
The association between object and identifier is never broken• Permanent
• Actionable Resolution
Discovery
• Opaque Cannot infer any information on the object by just looking
at the identifier
Yugoslavia/1987/Acacia
31AW56
One identifier one object

6. Different flavors of PUID
•PURL Persistent Uniform Resource Locator
http://purl.obspm.fr/vocab/Algorithms/GaussSeidel
•UUID Universally Unique Identifier
urn:uuid:7d8e6379-0636-416c-b3bc-ee4680e7c3f1
•LSID Life Science Identifier
urn:lsid:ncbi.nlm.nig.gov:GenBank:T48601:2
•ARK Archival Resource Key
http://texashistory.unt.edu/ark:/67531/metapth346793/
•DOI Digital Object Identifier
http://doi.org/10.5438/0012

7. Some facts about DOIs
• International DOI Foundation created in 1996 by the three major international publishing
trade associations
• ISO 26324 standard
• About 145 Million DOIs registered so far, with an annual growth rate of 16%
• IDF maintains the Global DOI System (network of redundant servers worldwide)
• DONA Foundation: joint initiative with other major players to ensure sustainability of the
infrastructure
• IDF operates through Registration Agencies

8. Structure of a DOI
10
Identifier of DOI within the Handle System
<prefix>
Registrant identifier assigned by the Registration Agency
<suffix>. /
Identifier guaranteed unique by the Registrant
• 10.3204/PHPPUBDB-25818
• 10.18730/1W34E
• 10.1109/5.771073
Examples of DOIs

9. What does a Registrant agree to?
• Maintain the association between the DOI and the object
• Maintain the “landing page”
Never use the same DOI for any other object
10.5438/0013

10. How do I get DOIs for my research?
• Define the use case
• Identify a DOI minting service that best suits your needs
• Become a member of the Registration Agency
• Understand the metadata structure
• Submit registration requests
• Comply with your obligations
What will my DOIs identify?
Check if your institution/organization already assigns DOIs
CrossRef focuses on publications
DataCite for publications and other uses
Several other RAs in specific countries and for specific
sectors
Map your metadata to the ones required to get a DOI
Usually via a XML document
DataCite will soon offer a web form
Never use the same DOI for another object
Maintain the landing page

11. Advanced services available through DOIs
• EventData
• Organization identifiers
• Citation formatter
• Link checker
• Data quality assessment
• Impact assessment

12. DOI application domains
• Publications
• Datasets
• Database queries
• Software
• Technical instrumentation
• Instrumentation settings
• Arts and other Human sciences

13. marco.marsella@fao.or
g
Thank you!