As of 2022-03-07, the Wikidata property Datahub page (P2666) is used on 116 items as main value on statements (not counting qualifiers) of the Q and P namespaces.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P646 Freebase ID 78
 0.0000
P8605 Linked Open Data Cloud identifier 67
 0.1745
P3417 Quora topic ID 37
 0.0002
P2689 BARTOC ID 32
 0.0732
P6366 Microsoft Academic ID 32
 0.0001
P2002 Twitter username 29
 0.0001
P214 VIAF ID 29
 0.0000
P244 Library of Congress authority ID 26
 0.0000
P227 GND ID 21
 0.0000
P2013 Facebook ID 18
 0.0001
P2581 BabelNet ID 17
 0.0002
P10283 OpenAlex ID 17
 0.0002
P7859 WorldCat Identities ID 16
 0.0000
P4793 identifiers.org prefix 14
 0.0408
P1417 Encyclopædia Britannica Online ID 14
 0.0001
P213 ISNI 13
 0.0000
P2671 Google Knowledge Graph ID 13
 0.0000
P9100 GitHub topic 12
 0.0047
P8189 National Library of Israel J9U ID 12
 0.0001
P268 Bibliothèque nationale de France ID 12
 0.0000
P6720 interwiki prefix at Wikimedia 11
 0.0220
P3553 Zhihu topic ID 11
 0.0008
P7818 French Vikidia ID 11
 0.0005
P9618 AlternativeTo software ID 10
 0.0087
P8408 KBpedia ID 10
 0.0003
P691 NKCR AUT ID 10
 0.0000
P5161 Trustpilot company ID 9
 0.0137
P4801 LoC and MARC vocabularies ID 9
 0.0070
P2037 GitHub username 9
 0.0012
P4527 UK Parliament thesaurus ID 9
 0.0003
P3500 Ringgold ID 9
 0.0001
P6782 ROR ID 9
 0.0001
P2427 GRID ID 9
 0.0001
P3984 subreddit 8
 0.0007
P2003 Instagram username 8
 0.0001
P269 IdRef ID 8
 0.0000
P10000 Research Vocabularies Australia ID 7
 0.0486
P6611 Semantic Scholar topic ID 7
 0.0133
P2847 Google+ ID 7
 0.0011
P2163 FAST ID 7
 0.0000
P7829 English Vikidia ID 6
 0.0059
P2088 Crunchbase organization ID 6
 0.0003
P3222 NE.se ID 6
 0.0001
P2397 YouTube channel ID 6
 0.0001
P949 National Library of Israel ID 6
 0.0001
P1800 Wikimedia database name 5
 0.0046
P1972 Open Hub ID 5
 0.0017
P3569 Cultureel Woordenboek ID 5
 0.0009
P6698 Japan Search name ID 5
 0.0003
P5019 Brockhaus Enzyklopädie online ID 5
 0.0001

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P8605 Linked Open Data Cloud identifier 67
 0.1745
P2689 BARTOC ID 32
 0.0732
P10000 Research Vocabularies Australia ID 7
 0.0486
P4793 identifiers.org prefix 14
 0.0408
P10120 Australian Trade Mark Number 3
 0.0246
P6307 Wikibase Registry ID 3
 0.0236
P6720 interwiki prefix at Wikimedia 11
 0.0220
P5874 re3data repository ID 2
 0.0146
P8525 ToS;DR service numerical identifier 2
 0.0140
P5161 Trustpilot company ID 9
 0.0137
P6611 Semantic Scholar topic ID 7
 0.0133
P9618 AlternativeTo software ID 10
 0.0087
P5801 Academia.edu topic ID 2
 0.0082
P10195 Library of Congress providers ID 1
 0.0079
P9186 DicoPolHiS ID 1
 0.0079
P9712 Research Resource Identifier 1
 0.0074
P4801 LoC and MARC vocabularies ID 9
 0.0070
P7703 Spanish Quora topic ID 1
 0.0069
P5256 OpenCorporates corporate grouping 1
 0.0068
P5084 Yahoo Answers category 1
 0.0065
P8584 Wikipedia Library partner ID 1
 0.0061
P4824 org-id.guide ID 1
 0.0060
P7829 English Vikidia ID 6
 0.0059
P4870 GEPRIS project ID 1
 0.0056
P6334 Agence photo RMN package ID 1
 0.0055
P5332 OpenDOAR ID 2
 0.0051
P4419 Videolectures ID 1
 0.0050
P9100 GitHub topic 12
 0.0047
P1800 Wikimedia database name 5
 0.0046
P7860 word in DPEJ of RAE ID 1
 0.0044
P10234 Der Spiegel topic ID 2
 0.0044
P2612 TED topic ID 2
 0.0042
P8895 All the Tropes identifier 4
 0.0042
P7072 wiki on WikiApiary 1
 0.0040
P3597 F-Droid package 1
 0.0039
P9374 ODLIS ID 1
 0.0038
P6680 MeSH term ID 1
 0.0037
P4033 Mastodon address 2
 0.0035
P4840 Directory of Czech publishers ID 1
 0.0033
P3308 lib.reviews ID 1
 0.0032
P6157 Google News publication ID 1
 0.0031
P3068 WIPO ST.3 1
 0.0029
P8272 BaGLAMa GID 1
 0.0028
P9345 Discord server numeric ID 1
 0.0027
P4339 Radio Radicale organizer ID 1
 0.0025
P8205 Mozilla Developer Network article 1
 0.0025
P7827 Spanish Vikidia ID 4
 0.0024
P4993 Hungarian public body ID 1
 0.0023
P9863 Gujarati Vishwakosh entry 1
 0.0023
P4644 ESCO skill ID 1
 0.0023