Wikidata:Property proposal/ namespace

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Originally proposed at Wikidata:Property proposal/Generic

   Not done
Descriptionnamespace of given collection at, define in the Registry (Q16335166) (Q16335163)
Data typeExternal identifier
Allowed valuesstring
ExampleChEMBL (Q6120337) → chembl.compound
Formatter URL$1/
Robot and gadget jobsProbably

(Add your motivation for this property here.) GZWDer (talk) 14:15, 18 January 2017 (UTC)

Pictogram voting comment.svg Comment Hmm, should this be a statement on the database/collection item, or on our identifier properties? I think it would be better to directly link our identifier properties to the corresponding value. ArthurPSmith (talk) 16:41, 18 January 2017 (UTC)
  • @GZWDer: given lack of support and no activity in over 3 months, I've marked this as  Not done. If you want to reopen it this proposal could be re-used. ArthurPSmith (talk) 18:54, 14 June 2017 (UTC)
Pictogram voting comment.svg Comment It would be useful if a Wikidata property for (Q16335163) could be realized and used as an external identifier for various data entries in life sciences, since there are often multiple URLs for one data entry. For example, the protein data identified as "2gc4" can be accessed at the following URIs:,,, etc. can be used as a permanent URI for them, which are identified as .
Here, "pdb" is the database namespace for Protein Data Bank, which is defined at the Registry (Q16335166)
--Yayamamo (talk) 16:34, 25 August 2017 (UTC)
Pictogram voting comment.svg Comment is indeed a very convenient service, which I often use. Some semantic web resources use it as a service to provide IRIs in linked data if the primary source does not contain IRIs just yet. There is already a property to store IRIs for is the aim is to link with other linked databases. This is exact match (P2888), see for example Q40108#P2888. With this in place it becomes possible to submit federated queries with other resources who use the namespace, such as WikiPathways (Q7999828) or DisGeNET (Q10465472) Andrawaag (talk) 10:00, 26 August 2017 (UTC)