| P1793 | format as a regular expression | String | ^\d+$ | ??? |
| P1630 | formatter URL | String | https://web.archive.org/web/1/https://www.semion.io/Author/$1 | ??? |
| P1552 | has characteristic | ... | Q93868746 (numeric identifier) | numeric identifier |
| P31 | instance of | ... | Q19595382 (Wikidata property for authority control for people) | Wikidata property for authority control for people |
| P31 | instance of | ... | Q108951239 (Wikidata property for a former identification scheme) | Wikidata property for a former identification scheme |
| 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/Semion author ID - Wikidata | ??? |
| P1659 | related property | ... | P4594 (arXiv author ID) | arXiv author ID |
| P1896 | source website for the property | Url | None | ??? |
| P2668 | stability of property value | ... | Q23611288 (never changes) | never changes |
| P8966 | URL match pattern | String | ^https?:\/\/(?:www\.)?semion\.io\/Author\/(\d+) | ??? |
| P1855 | Wikidata property example | ... | Q937 (Albert Einstein) | Albert Einstein |
| P1855 | Wikidata property example | ... | Q63441463 (Francesca Gulminelli) | Francesca Gulminelli |
| P1855 | Wikidata property example | ... | Q64219617 (David Boilley) | David Boilley |
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