As of 2022-03-07, the Wikidata property Sandbox-External identifier (P2536) is used on 923 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 813
 0.0003
P7859 WorldCat Identities ID 767
 0.0004
P213 ISNI 685
 0.0005
P244 Library of Congress authority ID 629
 0.0005
P1006 Nationale Thesaurus voor Auteurs ID 612
 0.0012
P1207 NUKAT ID 565
 0.0011
P269 IdRef ID 483
 0.0009
P646 Freebase ID 443
 0.0001
P227 GND ID 438
 0.0003
P691 NKCR AUT ID 396
 0.0009
P268 Bibliothèque nationale de France ID 348
 0.0006
P2163 FAST ID 309
 0.0007
P3987 SHARE Catalogue author ID 280
 0.0016
P2671 Google Knowledge Graph ID 270
 0.0000
P5375 BIU Santé person ID 229
 0.0203
P1015 NORAF ID 211
 0.0013
P7902 Deutsche Biographie (GND) ID 195
 0.0003
P3430 SNAC ARK ID 191
 0.0014
P7293 PLWABN ID 189
 0.0006
P8189 National Library of Israel J9U ID 165
 0.0010
P648 Open Library ID 141
 0.0005
P3368 Prabook ID 135
 0.0006
P2381 Academic Tree ID 131
 0.0064
P349 National Diet Library ID 113
 0.0008
P1580 University of Barcelona authority ID (obsolete) 112
 0.0019
P1417 Encyclopædia Britannica Online ID 109
 0.0006
P1315 NLA Trove people ID 106
 0.0010
P3956 National Academy of Medicine (France) member ID 105
 0.0322
P271 CiNii author ID (books) 105
 0.0012
P5587 Libris-URI 99
 0.0008
P906 SELIBR ID 97
 0.0013
P950 Biblioteca Nacional de España ID 93
 0.0005
P1280 CONOR.SI ID 92
 0.0009
P5380 National Academy of Sciences member ID 91
 0.0186
P9984 CANTIC ID 89
 0.0016
P949 National Library of Israel ID 89
 0.0011
P1273 CANTIC ID (old) 85
 0.0016
P409 Libraries Australia ID 75
 0.0011
P3219 Encyclopædia Universalis ID 73
 0.0022
P3065 RERO ID 69
 0.0009
P6821 Uppsala University Alvin ID 68
 0.0022
P5019 Brockhaus Enzyklopädie online ID 65
 0.0018
P3222 NE.se ID 64
 0.0014
P5415 Whonamedit? doctor ID 63
 0.0233
P535 Find a Grave memorial ID 63
 0.0005
P2949 WikiTree person ID 63
 0.0003
P2600 Geni.com profile ID 63
 0.0003
P1296 Gran Enciclopèdia Catalana ID 61
 0.0005
P9058 Fichier des personnes décédées ID (matchID) 60
 0.0021
P8179 Canadiana Name Authority ID 58
 0.0010

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P5329 ARMB member ID 55
 0.0324
P3956 National Academy of Medicine (France) member ID 105
 0.0322
P5415 Whonamedit? doctor ID 63
 0.0233
P5375 BIU Santé person ID 229
 0.0203
P5380 National Academy of Sciences member ID 91
 0.0186
P8024 Nobel Laureate API ID 24
 0.0129
P5418 Pasteur Institute person ID 12
 0.0103
P3360 Nobel Prize People Nomination ID 50
 0.0101
P5468 Historia de la Medicina person ID 10
 0.0085
P3413 Leopoldina member ID 57
 0.0083
P9640 PAS member ID 9
 0.0072
P2944 Plarr ID 18
 0.0068
P2381 Academic Tree ID 131
 0.0064
P2941 Munk's Roll ID 40
 0.0062
P8832 PAN member 14
 0.0060
P6174 The World Academy of Sciences fellow ID 7
 0.0060
P4890 EPHE ID 7
 0.0054
P6551 Physics History Network ID 9
 0.0046
P2454 KNAW past member ID 12
 0.0044
P9048 Biographical Archive of Psychiatry ID 4
 0.0041
P2383 CTHS person ID 50
 0.0040
P5541 Paris Faculty of Science professor ID 4
 0.0039
P5450 Biographisches Archiv der Psychiatrie ID 4
 0.0038
P4431 Google Doodle 9
 0.0031
P8219 ASUT ID 6
 0.0030
P8821 Memorial Book University of Vienna ID 4
 0.0030
P5553 IDIH ID 3
 0.0030
P5374 Académie des sciences d'outre-mer member ID 5
 0.0030
P3475 SANU member ID 6
 0.0029
P6594 Guggenheim fellows ID 48
 0.0028
P9044 GEPRIS-Historisch ID (Person) 32
 0.0027
P3468 National Inventors Hall of Fame ID 4
 0.0027
P10242 Lur Encyclopedic Dictionary ID 39
 0.0027
P5443 Collège de France professor ID 3
 0.0026
P5441 Encyclopaedia Herder person ID 4
 0.0026
P1563 MacTutor biography ID 10
 0.0026
P951 NSZL (VIAF) ID 33
 0.0026
P3133 NSZL name authority ID 33
 0.0026
P5821 ArhivX LOD 10
 0.0025
P9682 Gutenberg Biographics ID 4
 0.0024
P5552 CNRS Talent page 3
 0.0024
P5496 Médicos históricos doctor ID 5
 0.0023
P5376 Medicina author ID 3
 0.0022
P8947 Museo Galileo authority ID 38
 0.0022
P5370 Entomologists of the World ID 26
 0.0022
P4590 Atomic Heritage Foundation ID 3
 0.0022
P6821 Uppsala University Alvin ID 68
 0.0022
P3219 Encyclopædia Universalis ID 73
 0.0022
P8914 ZOBODAT person ID 18
 0.0021
P9058 Fichier des personnes décédées ID (matchID) 60
 0.0021