| Wikidata property for authority control for people | Q19595382 |
| Wikidata property for an identifier | Q19847637 |
| P3254 | property proposal discussion | https://www.wikidata.org/wiki/Wikidata:Property_proposal/Isidore_ID |
| P1896 | source website for the property | https://isidore.science/ |
| P9073 | applicable 'stated in' value | Isidore | Q3391953 |
| P1630 | formatter URL | https://isidore.science/a/$1 | |
| P2302 | property constraint | single-value constraint | Q19474404 |
| property scope constraint | Q53869507 | ||
| format constraint | Q21502404 | ||
| distinct-values constraint | Q21502410 | ||
| allowed-entity-types constraint | Q52004125 | ||
| P2875 | property usage tracking category | Category:Pages using Wikidata property P4491 | Q53747746 |
| P4354 | search formatter URL | https://isidore.science/s?q=$1 | |
| P2668 | stability of property value | never changes | Q23611288 |
| Q53747746 | Category:Pages using Wikidata property P4491 | related property | P1659 |
| Q3391953 | Isidore | Wikidata property | P1687 |
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