Wikidata:Property proposal/Knotilus identifier

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Knotilus identifier[edit]

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   Under discussion
DescriptionLink from mathematical knot/link articles to authoritative information source Knotilus
Data typeExternal identifier
Domainknot (Q1188853), link (Q1760728) and subclasses
Allowed values[1-9][0-9]*([,:][1-9][0-9]*)*
Example 1trefoil knot (Q168620) → 1,2,3,1,2,3
Example 2figure-eight knot (Q168697) → 1,2,3,4,2,1,4,3
Example 3Hopf link (Q864313) → 1,2:1,2
Example 4Whitehead link (Q2588098) → 1,2,3,4,5,3:1,2,5,4
SourceKnotilus (Q96633538)
Planned useto be used to link Wikidata entries on knots and links to Knotilus, an authoritative source of information on these
Number of IDs in source> 2000
Expected completenessalways incomplete (Q21873886)
Formatter URL$1


Knotilus is an authoritative source of information on mathematical knots and links, for which both Wikipedia and Wikidata have a number of entries. It is maintained by a group of mathematicians and hosted at the w:University of Western Ontario. Providing links to Knotilus will provide Wikidata users access to a wide range of information about these entities that goes far beyond the range of information currently planned to be stored on Wikidata, as well as providing a source of potential data for those entries. If this property is created, I hope eventually to be able to fill in values for existing entries using my bot.


Arthur Rubin
Nomen ad hoc
The Anome
Pictogram voting comment.svg Notified participants of WikiProject Mathematics

Note: Knotilus is currently down, but I'm hoping it will be up again soon. I'd like to keep this property proposal live, as I believe that it is clear that this is intended by its authors to be a long-lived project, and it has been running since at least 2004. In the meantime, here's a recent Internet Archive snapshot. -- The Anome (talk) 09:33, 1 July 2020 (UTC)

  • Pictogram voting comment.svg Comment @The Anome: if the above works as a notation, it doesn't need the site to be live. If it's an identifier available also elsewhere, probably not either. Otherwise, I think we should close this as not done and ask you to do a new one once it's back. @ArthurPSmith: --- Jura 11:13, 15 July 2020 (UTC)
    • @ArthurPSmith, Jura1: Since I can't generate the identifiers without cross-correlating with data from the Knotilus website, I think the best thing to do at this point is to close this request, and for me to re-submit it when Knotilus is (hopefully) back up again. -- The Anome (talk) 11:27, 15 July 2020 (UTC)
      • @The Anome: Maybe with web archive? I suppose that would be the first time we add that at creation. --- Jura 12:07, 15 July 2020 (UTC)
        • Unfortuntely not. It's a database-driven site, and the archived data is only superficial. -- The Anome (talk) 12:24, 15 July 2020 (UTC)