| Wikidata property related to software | Q21126229 |
| Wikidata property with datatype string that is not an external identifier | Q21099935 |
| Wikidata property for items about people or organisations | Q57955292 |
| P1793 | format as a regular expression | [a-z\d]{128}|[a-z\d]{64}|[a-z\d]{40}|[a-z\d]{32}|[a-z\d]{16}|[a-z\d]{8}(-[a-z\d]{4}){3}-[a-z\d]{12} |
| P3254 | property proposal discussion | https://www.wikidata.org/wiki/Wikidata:Property_proposal/checksum |
| P2302 | property constraint | format constraint | Q21502404 |
| property scope constraint | Q53869507 | ||
| required qualifier constraint | Q21510856 | ||
| allowed-entity-types constraint | Q52004125 | ||
| P1659 | related property | pHash checksum | P9310 |
| P1629 | Wikidata item of this property | checksum | Q218341 |
| Q218341 | checksum | Wikidata property | P1687 |
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