| Wikidata property for an identifier | Q19847637 |
| Wikidata property for authority control for works | Q19833377 |
| P1793 | format as a regular expression | [0-9]{8} |
| P3254 | property proposal discussion | https://www.wikidata.org/wiki/Wikidata:Property_proposal/OBJ_ID |
| P2429 | expected completeness | always incomplete | Q21873886 |
| P1630 | formatter URL | https://foto.biblhertz.it/document/obj/$1 | |
| P4876 | number of records | 100000 | |
| P2302 | property constraint | distinct-values constraint | Q21502410 |
| format constraint | Q21502404 | ||
| single-value constraint | Q19474404 | ||
| allowed-entity-types constraint | Q52004125 | ||
| property scope constraint | Q53869507 | ||
| P1629 | Wikidata item of this property | Bibliotheca Hertziana – Max Planck Institute for Art History | Q339759 |
| Q339759 | Bibliotheca Hertziana – Max Planck Institute for Art History | Wikidata property | P1687 |
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