As of 2022-03-07, the Wikidata property Medium username (P3899) is used on 849 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
P2002 Twitter username 737
 0.0024
P2013 Facebook ID 397
 0.0017
P6634 LinkedIn personal profile ID 367
 0.0071
P2003 Instagram username 360
 0.0023
P2397 YouTube channel ID 249
 0.0037
P2671 Google Knowledge Graph ID 236
 0.0000
P214 VIAF ID 233
 0.0001
P7859 WorldCat Identities ID 201
 0.0001
P646 Freebase ID 195
 0.0000
P244 Library of Congress authority ID 170
 0.0001
P213 ISNI 161
 0.0001
P2087 Crunchbase person ID 152
 0.0639
P345 IMDb ID 144
 0.0002
P2037 GitHub username 131
 0.0157
P227 GND ID 103
 0.0001
P2963 Goodreads author ID 102
 0.0048
P3417 Quora topic ID 101
 0.0005
P496 ORCID iD 99
 0.0001
P4264 LinkedIn company ID 96
 0.0088
P1960 Google Scholar author ID 93
 0.0016
P6005 Muck Rack journalist ID 85
 0.0122
P269 IdRef ID 80
 0.0001
P3836 Pinterest username 76
 0.0145
P3267 Flickr user ID 75
 0.0277
P268 Bibliothèque nationale de France ID 71
 0.0001
P9743 Podchaser creator ID 66
 0.0045
P691 NKCR AUT ID 65
 0.0001
P2088 Crunchbase organization ID 64
 0.0034
P1207 NUKAT ID 63
 0.0001
P4862 Amazon author ID 61
 0.0094
P1006 Nationale Thesaurus voor Auteurs ID 59
 0.0001
P4985 TMDb person ID 56
 0.0002
P5337 Google News topics ID 55
 0.0096
P4015 Vimeo identifier 52
 0.0126
P2038 ResearchGate profile ID 51
 0.0010
P8189 National Library of Israel J9U ID 50
 0.0003
P648 Open Library ID 49
 0.0002
P4411 Quora username 47
 0.0420
P2847 Google+ ID 47
 0.0069
P1015 NORAF ID 47
 0.0003
P3040 SoundCloud ID 46
 0.0022
P2581 BabelNet ID 46
 0.0006
P5034 National Library of Korea ID 43
 0.0006
P3943 Tumblr username 41
 0.0094
P2163 FAST ID 41
 0.0001
P2190 C-SPAN person ID 39
 0.0057
P4265 Reddit username 38
 0.0233
P7293 PLWABN ID 38
 0.0001
P1153 Scopus author ID 38
 0.0001
P7502 Golden ID 37
 0.0132

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P2087 Crunchbase person ID 152
 0.0639
P4411 Quora username 47
 0.0420
P3276 Angel List ID 36
 0.0355
P4016 SlideShare username 30
 0.0287
P3267 Flickr user ID 75
 0.0277
P4265 Reddit username 38
 0.0233
P3052 Bloomberg person ID 24
 0.0166
P2037 GitHub username 131
 0.0157
P3836 Pinterest username 76
 0.0145
P4175 Patreon ID 25
 0.0139
P4174 Wikimedia username 35
 0.0134
P5264 Relationship Science person ID 12
 0.0132
P7502 Golden ID 37
 0.0132
P8445 Our Campaigns candidate ID 12
 0.0129
P4015 Vimeo identifier 52
 0.0126
P6005 Muck Rack journalist ID 85
 0.0122
P8148 re:publica speaker ID 10
 0.0109
P3377 Bloomberg company ID 21
 0.0100
P4942 Societe.com director ID 11
 0.0099
P6837 Keybase username 9
 0.0099
P5337 Google News topics ID 55
 0.0096
P6621 Le Figaro tag ID 10
 0.0094
P4862 Amazon author ID 61
 0.0094
P3943 Tumblr username 41
 0.0094
P2686 OpenSecrets people ID 14
 0.0090
P4939 BFMTV.com director ID 11
 0.0089
P4264 LinkedIn company ID 96
 0.0088
P4033 Mastodon address 11
 0.0085
P3388 LittleSis people ID 34
 0.0081
P3789 Telegram username 26
 0.0079
P2942 Dailymotion channel ID 10
 0.0079
P2984 Snapchat username 16
 0.0078
P7171 Hacker News username 7
 0.0075
P2607 BookBrainz author ID 11
 0.0074
P6634 LinkedIn personal profile ID 367
 0.0071
P2847 Google+ ID 47
 0.0069
P1839 US Federal Election Commission ID 15
 0.0069
P7176 XING profile ID 7
 0.0065
P2611 TED speaker ID 20
 0.0064
P9078 Discord invite ID 6
 0.0058
P5551 Courrier international topic ID 5
 0.0058
P2190 C-SPAN person ID 39
 0.0057
P7284 The Independent topic ID 6
 0.0057
P8754 OpenStreetMap numeric user ID 5
 0.0055
P8827 GitLab username 5
 0.0055
P2267 PolitiFact people and groups ID 19
 0.0053
P2740 ResearchGate institute ID 7
 0.0052
P8176 Itch.io developer profile 5
 0.0051
P5161 Trustpilot company ID 7
 0.0050
P6119 Letterboxd actor ID 11
 0.0050