As of 2022-03-07, the Wikidata property IdRef ID (P269) is used on 546,920 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
P214 VIAF ID 533,193
0.1934
P7859 WorldCat Identities ID 484,795
0.2540
P213 ISNI 475,238
0.3248
P244 Library of Congress authority ID 438,293
0.3013
P268 Bibliothèque nationale de France ID 355,951
0.4614
P227 GND ID 337,361
0.2247
P1006 Nationale Thesaurus voor Auteurs ID 309,930
0.4132
P1207 NUKAT ID 273,135
0.3418
P646 Freebase ID 228,260
0.0482
P691 NKCR AUT ID 176,796
0.2165
P2163 FAST ID 174,907
0.2171
P2671 Google Knowledge Graph ID 166,940
0.0215
P7293 PLWABN ID 155,626
0.2141
P7902 Deutsche Biographie (GND) ID 128,406
0.1231
P3987 SHARE Catalogue author ID 123,234
0.2074
P1015 NORAF ID 119,930
0.2034
P950 Biblioteca Nacional de España ID 107,190
0.1682
P8189 National Library of Israel J9U ID 106,467
0.1738
P648 Open Library ID 101,771
0.1421
P8034 Vatican Library VcBA ID 74,885
0.1291
P3430 SNAC ARK ID 67,898
0.1103
P3065 RERO ID 62,529
0.1123
P1280 CONOR.SI ID 61,846
0.1049
P1871 CERL Thesaurus ID 60,486
0.0823
P1315 NLA Trove people ID 59,038
0.0998
P271 CiNii author ID (books) 57,098
0.0992
P345 IMDb ID 57,023
0.0443
P949 National Library of Israel ID 54,808
0.0962
P409 Libraries Australia ID 49,711
0.0883
P3368 Prabook ID 49,703
0.0686
P1017 Vatican Library ID (former scheme) 47,574
0.0850
P906 SELIBR ID 46,040
0.0798
P5587 Libris-URI 45,203
0.0721
P9984 CANTIC ID 45,155
0.0810
P349 National Diet Library ID 44,433
0.0692
P7704 Europeana entity 44,281
0.0668
P1273 CANTIC ID (old) 43,498
0.0781
P496 ORCID iD 42,793
0.0190
P3762 openMLOL author ID 41,808
0.0737
P8179 Canadiana Name Authority ID 41,470
0.0741
P1695 NLP ID (unique) 41,236
0.0730
P1580 University of Barcelona authority ID (obsolete) 40,836
0.0722
P9918 Kallías ID 40,355
0.0669
P1005 Portuguese National Library ID 39,436
0.0704
P1417 Encyclopædia Britannica Online ID 38,883
0.0572
P4985 TMDb person ID 37,967
0.0513
P3630 Babelio author ID 37,644
0.0680
P5739 Pontificia Università della Santa Croce ID 36,164
0.0636
P1953 Discogs artist ID 34,053
0.0467
P2732 Persée author ID 33,878
0.0614

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P268 Bibliothèque nationale de France ID 355,951
0.4614
P1006 Nationale Thesaurus voor Auteurs ID 309,930
0.4132
P1207 NUKAT ID 273,135
0.3418
P213 ISNI 475,238
0.3248
P244 Library of Congress authority ID 438,293
0.3013
P7859 WorldCat Identities ID 484,795
0.2540
P227 GND ID 337,361
0.2247
P2163 FAST ID 174,907
0.2171
P691 NKCR AUT ID 176,796
0.2165
P7293 PLWABN ID 155,626
0.2141
P3987 SHARE Catalogue author ID 123,234
0.2074
P1015 NORAF ID 119,930
0.2034
P214 VIAF ID 533,193
0.1934
P8189 National Library of Israel J9U ID 106,467
0.1738
P950 Biblioteca Nacional de España ID 107,190
0.1682
P648 Open Library ID 101,771
0.1421
P8034 Vatican Library VcBA ID 74,885
0.1291
P7902 Deutsche Biographie (GND) ID 128,406
0.1231
P3065 RERO ID 62,529
0.1123
P3430 SNAC ARK ID 67,898
0.1103
P1280 CONOR.SI ID 61,846
0.1049
P1315 NLA Trove people ID 59,038
0.0998
P271 CiNii author ID (books) 57,098
0.0992
P949 National Library of Israel ID 54,808
0.0962
P409 Libraries Australia ID 49,711
0.0883
P1017 Vatican Library ID (former scheme) 47,574
0.0850
P1871 CERL Thesaurus ID 60,486
0.0823
P9984 CANTIC ID 45,155
0.0810
P906 SELIBR ID 46,040
0.0798
P1273 CANTIC ID (old) 43,498
0.0781
P8179 Canadiana Name Authority ID 41,470
0.0741
P3762 openMLOL author ID 41,808
0.0737
P1695 NLP ID (unique) 41,236
0.0730
P1580 University of Barcelona authority ID (obsolete) 40,836
0.0722
P5587 Libris-URI 45,203
0.0721
P1005 Portuguese National Library ID 39,436
0.0704
P349 National Diet Library ID 44,433
0.0692
P3368 Prabook ID 49,703
0.0686
P3630 Babelio author ID 37,644
0.0680
P9918 Kallías ID 40,355
0.0669
P7704 Europeana entity 44,281
0.0668
P5739 Pontificia Università della Santa Croce ID 36,164
0.0636
P2732 Persée author ID 33,878
0.0614
P5034 National Library of Korea ID 33,586
0.0580
P1417 Encyclopædia Britannica Online ID 38,883
0.0572
P396 SBN author ID 32,357
0.0567
P5731 Angelicum ID 31,784
0.0567
P9097 American Academy in Rome ID 28,824
0.0521
P1368 LNB ID 29,426
0.0520
P4985 TMDb person ID 37,967
0.0513