This group supports the activities addressed to the Nodes associated to the 22nd meeting of the GBIF Governing Board in Oct 2015

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Resolver for persistent identifiers on occurrence level (gbif.no/resolver)

Presenters: Dag Endresen and Christian Svindseth, GBIF Norway

Demonstration provided at the information fair, 13th GBIF global Nodes meeting 7 October 2015, Antananarivo, Madagascar

One of the key challenges in maturing biodiversity informatics infrastructures is the integration of data across disparate databases. Implementation of persistent and globally unique identifiers (PIDs) for specimens held in natural history collections will open up new opportunities for referring to these physical resources in an interlinked digital context such as the Internet. GBIF Norway has implemented an approach for persistent identifiers (PIDs) using universally unique identifiers (UUIDs) prefixed by a persistent uniform resource locator (PURL) “http://purl.org/nhmuio/id/[UUID]”. The identifiers are optimized for machinereadability by encoding the http-PURL-UUID-string as QR codes or data matrix barcodes before they are attached to the labels of the physical specimens. The UUID provides the globally unique identity for the physical specimen. The http-PURL prefix is part of the identifier and provides the redirection (HTTP 303 "see other") to the resolver service located at “http://dev.gbif.no/resolver/[UUID]”. Using content negotiation the user or machine can access descriptive information as html, comma-separated-values (csv), tab-delimited text-files, n3/turtle RDF data, and json. These formats can also be accessed directly (without calling content negotiation) using the file extension "http://dev.gbif.no/resolver/[UUID].[html|csv|txt|n3|json]".