Quantities
| P4876 | number of records | 140818 |
| P9073 | applicable 'stated in' value | ... | Q846596 (WorldCat) | WorldCat |
| P2429 | expected completeness | ... | Q21873886 (always incomplete) | always incomplete |
| P1793 | format as a regular expression | String | [1-9]\d{0,5} | ??? |
| P1630 | formatter URL | String | https://worldcat.org/webservices/registry/Institutions/$1 | ??? |
| P1552 | has characteristic | ... | Q93868746 (numeric identifier) | numeric identifier |
| P31 | instance of | ... | Q100698536 (Wikidata property to identify libraries) | Wikidata property to identify libraries |
| P2378 | issued by | ... | Q846596 (WorldCat) | WorldCat |
| P2302 | property constraint | ... | Q19474404 (single-value constraint) | single-value constraint |
| P2302 | property constraint | ... | Q21502404 (format constraint) | format constraint |
| P2302 | property constraint | ... | Q21502410 (distinct-values constraint) | distinct-values constraint |
| P2302 | property constraint | ... | Q21503250 (subject type constraint) | subject type constraint |
| P2302 | property constraint | ... | Q52004125 (allowed-entity-types constraint) | allowed-entity-types constraint |
| P2302 | property constraint | ... | Q53869507 (property scope constraint) | property scope constraint |
| P3254 | property proposal discussion | Url | Wikidata:Property proposal/WorldCat Registry ID - Wikidata | ??? |
| P1659 | related property | ... | P243 (OCLC number) | OCLC number |
| P1659 | related property | ... | P4848 (Libraries.org ID) | Libraries.org ID |
| P4354 | search formatter URL | String | https://worldcat.org/webservices/registry/record?q=$1&offset=0 | ??? |
| P1896 | source website for the property | Url | None | ??? |
| P8966 | URL match pattern | String | ^https?:\/\/(?:(?:www|m)\.)?worldcat\.org\/webservices\/registry\/Institutions\/([1-9]\d{0,5}) | ??? |
| P8966 | URL match pattern | String | ^https?:\/\/registry\.worldcat\.org\/webservices\/registry\/.+\/(\d+) | ??? |
| P1855 | Wikidata property example | ... | Q131454 (Library of Congress) | Library of Congress |
| P1855 | Wikidata property example | ... | Q1366123 (Ilmenau University Library) | Ilmenau University Library |
| P1855 | Wikidata property example | ... | Q7315113 (Research Libraries UK) | Research Libraries UK |
| P1855 | Wikidata property example | ... | Q24571869 (Edward Boyle Library) | Edward Boyle Library |
| P1855 | Wikidata property example | ... | Q53151158 (Cotgrave Library) | Cotgrave Library |
| P2264 | Mix'n'match catalog ID | 5244 |
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