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Persistent Identifiers en Handles, Christine Staiger

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Presentatie over persistent identifiers, Handle en B2Handle door Christine Staiger (SURFsara). Workshop Persistent Identifiers, 10 april 2017, Week van het Digitaal Erfgoed.

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Persistent Identifiers en Handles, Christine Staiger

  1. 1. WORKSHOP 28TH/29TH APRIL 2015 Persistent Identifiers (PIDs) Christine Staiger Christine.staiger@surfsara.nl WORKSHOP 28TH/29TH APRIL 2015 Persistent Identifiers (PIDs) WORKSHOP 28TH/29TH APRIL 2015 Persistent Identifiers (PIDs) HANDLES AND B2HANDLE Persistent Identifiers (PIDs)
  2. 2. 2 What do we want from data? •  Findable – Easy to find by both humans and computer systems à Metadata •  Accessible – Stored for long term, accessed and/or downloaded with well-defined license and access •  Interoperable – Ready to be combined with other datasets by humans as well as computer systems; •  Reusable – Ready to be used for future research and to be processed further using computa@onal methods. à Reference data and iden@fy data à Infrastructure should take care of some aspects
  3. 3. 3 Digital Object (DO) Data PID Metadata •  Persistent Identifier: reference and identify object, either metadata or data object •  Synchronise PID, Data and Metadata during creation, maintenance, update and deletion of a digital object!
  4. 4. 4 Pro: PIDs are static Data 2 Data 1 Data 4 Data 3 PID 1 PID 2 PID 3 PID 4 World of data infrastructure
  5. 5. 5 PID systems and issuing authorities EPICDOI HANDLE GDWG SURFsara CSC grnet DataCite CrossRef DONA Foundation
  6. 6. 6 PID systems and issuing authorities •  URN:NBN (E.g. Archive resource iden>fier) •  Policies: PID is persistent and the data it is dereferenced to •  Wants to be independent from transfer protocols à Currently all iden@fiers start with h"p Might change in the future •  DOI (4TU.datacentrum) •  Policies: PID is persistent, data not •  Well accepted amongst researchers •  Based on the handle system •  Datacite, Crossref are prefix issuing authori@es •  Both: •  PIDs point to a landing page, not the file itself •  User needs to provide a minimum set of metadata •  Taylored towards the needs of repositories
  7. 7. 7 PID systems and issuing authorities •  ePIC (European PID consor>um) •  Policies: PID is persistent, data is not •  PIDs can point to anything •  Based on the handle system •  GDWG is main prefix issuing authority •  DONA founda>on (www.dona.net) •  Maintains global handle registry •  Partners: •  CNRI (developer of the handle system) •  GDWG (main partner in ePIC) •  Interna@onal DOI founda@on (IDF)
  8. 8. 8 The Handle system •  Pure technology! •  Metadata: You can create your own keyword-value pairs and store them with the PID •  Policies: Do it yourself! handles can point to anything handles can also be removed, they are not per se persistent … à  Great flexibility for adjus@ng the system towards your own needs à  You have to implememnt everything on your own à  You have to think even more carefully about how you want to facilitate data management
  9. 9. 9 Step-by-Step: B2HANDLE Demonstra>on: • Register data with a Handle • GET the details of a Handle • Modify a Handle record • Link two files on PID level Created PIDs will appear here: h[p://hdl.handle.net/21.T12995/PID-Training

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