The problem of using persistent identifiers for historical geographical objects
The problem of using persistent identifiers for historical geographical objects

Summary/Abstract: The authors describe the usage of persi-stent identifiers (PIDs) for historical geographical objects. They provide PIDs’ definition and scope of use as well as characterise the process of data harmonisation and PIDs’ creation. The article describes and assesses certain approaches used in different projects. Most often, internal identifiers are used, although their stability is not guaranteed. References are also made to external data stores such as Geonames and Wikidata.

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