wiki-archive/twiki/data/ABCD/AbcdConcept0137.txt

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---+++ AbcdConcept0137
---+++++ Identifier
<verbatim>DataSets/DataSet/Units/Unit/UnitGUID</verbatim>
---+++++ Group
Meta
---+++++ Subgroup
---+++++ Full Name
Unit record GUID
---+++++ Documentation
A globally unique identifier for the unit or the unit record.
---+++++ Content
A globally unique identifier for the unit record. Following DwC, in the absence of a persistent global unique identifier, this should be constructed in the form URN:catalog:[SourceInstitutionID]:[SourceID]:[UnitID]".
---++++ Recommended or Prescribed Values
---+++++ Example Value
URN:catalog:B:10:0012012
---+++++ Example Explanation
Sheet number 0012013 in collection 20 (pteridophytes) of the herbarium at the BGBM Berlin-Dahlem (Index Herbariorum Standard Code "B").
---+++++ Reviewer
W. Berendsohn 6 Sept 2005
---++++ Editorial Notes