View source for Wikidata/human/identifier/statistics



==Coverage of entities==
https://qlever.dev/wikidata/N6iD5k 2026-03-25

The table shows data for the following IDs ("ID" here and sometimes in the following text short for "ID system") or groups of IDs: ISNI, ORCID, VIAF (VIAF cluster), then ten VIAF contributors - for GND, the VIAF contributor used the most on human entities, the subproperties are shown directly after GND - the CBDB (Chinese Biographical Database) and the three most used genealogical identifiers. Outside humans the IDs can be used on other types of entities. The most type-restricted are ISNI, ORCID, CBDB and the genealogical identifiers, while the others may also contain works and classes.

The query used might be not providing exact numbers due to insufficient grouping. Nevertheless the data exposes differences between the IDs.

Topics to be covered by other queries:
#Ratio of humans among the identifiers (ISNI higher than GND and than VIAF)
#Quantity of humans 1) not covered by any of the identifiers listed 2) covered by ISNI, ORCID, GND, VIAF
#Quantity of sitelinks, external identifiers, statements on entities that have a given ID

13,099,079 items total about humans (row 1). The IDs with the largest coverage of these are: ISNI 2,136,019 ORCID 1,953,007 VIAF 3,837,770 GND 2,463,140 (rows 2 to 5) LC 1,407,979 (row 14).

VIAF has the highest value for distinct ID per item (1.021021843414) and for ID per item (1.030991174562). WikiTree is the only to have a value below 1 for distinct ID per item (0.9987) indicating usage of same ID on different items.

ISNI ratio (?p213_p_e) is as follows, total 0.1648, ORCID 0.05988 VIAF 0.5738 GND 0.6338 LC 0.8453 CBDB 0.006707 (lowest overall), Genealogics 0.0713, Geni 0.2344, WikiTree 0.2182. Among the VIAF contributors it is lowest on GND (0.6338) which has a total higher quantity followed by NLCR (0.6481) which has a lower total quantity, followed by LC (0.8453). It is highest on NTA (0.9831). Among the GND subproperties the ISNI ratio is highest on JudaicaLink (0.9789) followed by FID/PA (0.8949) and lowest on RPPD (0.3452) followed by HessBio (0.4231).

GND ratio outside the GND subproperties is highest on NTA (0.8062) and higher than ISNI ratio only on Genealogics. 

Among the VIAF contributors NLCR has the lowest ISNI ratio and lowest GND ratio.

===Table 1===
{| class="wikitable sortable"
! # !! ?prop !!  ?qty_e !!  ?qty_did !!  ?qty_id !!  ?did_per_e !!  ?id_per_e !!  ?qty_p213 !!  ?p213_per_e !!  ?qty_p227 !!  ?p227_per_e
|-
| 1 || - || 13,099,079 || - || - || - || - || 2,158,808 || 0.1648060905656 || 2,482,925 || 0.1895495858907
|-
| 2 || ISNI || 2,136,019 || 2,153,336 || 2,208,800 || 1.008107137624 || 1.034073198787 || 2,208,800 || 1.034073198787 || 1,583,379 || 0.7412757096262
|-
| 3 || ORCID || 1,953,007 || 1,956,955 || 1,958,768 || 1.002021498131 || 1.002949810216 || 116,958 || 0.05988611407947 || 105,726 || 0.05413498261911
|-
| 4 || VIAF/cluster || 3,837,770 || 3,918,447 || 3,956,707 || 1.021021843414 || 1.030991174562 || 2,202,116 || 0.57380093127 || 2,543,961 || 0.662874794477
|-
| 5 || GND || 2,463,140 || 2,467,866 || 2,504,381 || 1.001918689153 || 1.016743262665 || 1,561,331 || 0.63387830168 || 2,504,381 || 1.016743262665
|-
| 6 || GND/DDB || 1,185,804 || 1,186,540 || 1,197,585 || 1.00062067593 || 1.009935031422 || 704,509 || 0.5941192642292 || 1,197,557 || 1.00991141875
|-
| 7 || GND/DtBio || 863,855 || 865,311 || 875,709 || 1.001685468047 || 1.013722210325 || 502,854 || 0.5821046356159 || 875,693 || 1.013703688698
|-
| 8 || GND/Kalliope || 281,876 || 282,020 || 286,703 || 1.000510862933 || 1.017124551221 || 198,063 || 0.702660034909 || 286,701 || 1.017117455903
|-
| 9 || GND/FID/PA || 67,801 || 67,826 || 70,058 || 1.000368726125 || 1.033288594564 || 60,681 || 0.8949867996047 || 70,053 || 1.033214849339
|-
| 10 || GND/JudaicaLink || 31,193 || 31,199 || 32,207 || 1.000192350848 || 1.032507293303 || 30,537 || 0.9789696406245 || 32,207 || 1.032507293303
|-
| 11 || GND/HessBio || 16,267 || 16,269 || 16,379 || 1.0001229483 || 1.006885104813 || 6,883 || 0.4231265752751 || 16,375 || 1.006639208213
|-
| 12 || GND/RPPD || 11,825 || 11,825 || 11,920 || 1.0 || 1.008033826638 || 4,082 || 0.345200845666 || 11,920 || 1.008033826638
|-
| 13 || GND/Saebi || 1,823 || 1,823 || 1,843 || 1.0 || 1.010970927043 || 1,257 || 0.6895227646736 || 1,842 || 1.010422380691
|-
| 14 || LC || 1,407,979 || 1,413,524 || 1,434,260 || 1.003938268966 || 1.01866576135 || 1,190,224 || 0.8453421535406 || 859,283 || 0.610295324007
|-
| 15 || IdRef || 964,605 || 967,383 || 982,861 || 1.00287993531 || 1.018925881578 || 864,866 || 0.8966011994547 || 688,392 || 0.713651701992
|-
| 16 || NLCR || 729,223 || 736,819 || 748,495 || 1.010416566674 || 1.026428129667 || 472,673 || 0.6481871800533 || 408,505 || 0.5601921497265
|-
| 17 || NUKAT || 700,692 || 702,309 || 713,555 || 1.002307718655 || 1.01835756652 || 645,747 || 0.9215846620198 || 530,706 || 0.7574026819202
|-
| 18 || BNF || 621,793 || 627,020 || 640,162 || 1.008406334584 || 1.029541985838 || 600,385 || 0.9655705355319 || 463,917 || 0.746095565566
|-
| 19 || NTA || 585,639 || 589,104 || 601,936 || 1.00591661416 || 1.027827723222 || 575,763 || 0.9831363689918 || 472,185 || 0.8062731477924
|-
| 20 || PLWABN || 415,540 || 418,450 || 426,879 || 1.007002935939 || 1.027287385089 || 359,268 || 0.8645810270973 || 295,313 || 0.7106728594118
|-
| 21 || SBN || 240,414 || 243,478 || 248,844 || 1.01274468209 || 1.035064513714 || 212,867 || 0.8854184864442 || 184,687 || 0.7682040147412
|-
| 22 || BNE || 224,925 || 229,211 || 235,347 || 1.019055240636 || 1.046335445148 || 201,562 || 0.8961298210515 || 164,483 || 0.7312793153273
|-
| 23 || CBDB || 413,145 || 418,247 || 418,325 || 1.012349175229 || 1.01253797093 || 2,771 || 0.006707088310399 || 2,143 || 0.005187040869428
|-
| 24 || Genealogics || 324,214 || 325,024 || 325,667 || 1.002498349855 || 1.004481607827 || 23,140 || 0.07137261191682 || 29,594 || 0.09127921681359
|-
| 25 || Geni || 504,968 || 506,869 || 509,710 || 1.003764594984 || 1.009390694064 || 118,390 || 0.2344504998337 || 115,798 || 0.229317501307
|-
| 26 || WikiTree || 411,654 || 411,146 || 413,981 || 0.9987659539322 || 1.005652805511 || 89,832 || 0.2182220991415 || 78,117 || 0.189763733621
|}

==Gender and parents==
https://qlever.dev/wikidata/jY5NiD

Gender per item:
#Total 0.8234, ORCID below (0.3718), all other above, lowest of these GND 0.9259.

Parents per item: 
#mother claims per father claim: highest are the genealogical identifiers, ISNI and each of the VIAF sources have ca. 0.5, lowest is CBDB (0.18) followed by ORCID (0.3929).
#father per item: Highest are the genealogical IDs, followed by CBDB, highest VIAF source is BNE (0.0904). Lowest is ORCID (0.001131) followed by a GND subproperty, then NLCR (0.04795) another GND subproperty and GND itself (0.04902).
#father total: Total is 1,180,514, followed by the three genealogical IDs (~240K each), then VIAF (190K), then GND, ISNI, CBDB, LC.

===Table 2===
{| class="wikitable sortable"
! # !!  ?prop !!  ?qty_e !!  ?qty_p21 !!  ?p21_per_e !!  ?qty_p22 !!  ?p22_per_e !!  ?qty_p25 !!  ?p25_per_e !!  ?p25_per_p22
|-
| 1 || - || 13,100,785 || 10,787,616 || 0.8234327942944 || 1,180,514 || 0.09011017278736 || 734,727 || 0.05608266985528 || 0.6223788959724
|-
| 2 || ISNI || 2,136,140 || 2,001,230 || 0.9368440270769 || 118,036 || 0.05525667793309 || 56,294 || 0.02635314164802 || 0.4769222948931
|-
| 3 || ORCID || 1,953,063 || 726,312 || 0.3718835490714 || 2,209 || 0.001131043903858 || 868 || 0.0004444301079893 || 0.3929379809869
|-
| 4 || VIAF/cluster || 3,837,890 || 3,669,112 || 0.9560232315152 || 190,516 || 0.04964081826212 || 92,204 || 0.02402465938315 || 0.4839698503013
|-
| 5 || GND || 2,463,249 || 2,280,891 || 0.9259685074469 || 120,760 || 0.04902468244177 || 59,256 || 0.0240560333121 || 0.4906922822127
|-
| 6 || GND/DDB || 1,185,802 || 1,108,602 || 0.934896382364 || 49,067 || 0.04137874619878 || 24,990 || 0.02107434462077 || 0.5093036052744
|-
| 7 || GND/DtBio || 863,851 || 863,613 || 0.9997244895242 || 72,034 || 0.08338706559349 || 36,140 || 0.04183591846279 || 0.5017075270011
|-
| 8 || GND/Kalliope || 281,876 || 281,951 || 1.000266074444 || 32,720 || 0.1160794108048 || 16,675 || 0.05915721806752 || 0.5096271393643
|-
| 9 || GND/FID/PA || 67,801 || 67,604 || 0.9970944381351 || 6,510 || 0.09601628294568 || 3,616 || 0.0533325467176 || 0.5554531490015
|-
| 10 || GND/JudaicaLink || 31,192 || 31,038 || 0.9950628366248 || 2,502 || 0.08021287509618 || 1,181 || 0.03786227237753 || 0.4720223820943
|-
| 11 || GND/HessBio || 16,267 || 16,272 || 1.000307370751 || 3,059 || 0.1880494252167 || 1,399 || 0.0860023360177 || 0.4573389996731
|-
| 12 || GND/RPPD || 11,825 || 11,830 || 1.000422832981 || 570 || 0.04820295983087 || 300 || 0.02536997885835 || 0.5263157894737
|-
| 13 || GND/Saebi || 1,823 || 1,826 || 1.001645639056 || 344 || 0.1886999451454 || 198 || 0.108612177729 || 0.5755813953488
|-
| 14 || LC || 1,408,089 || 1,368,884 || 0.9721572997161 || 101,634 || 0.07217867620584 || 51,878 || 0.03684284161015 || 0.5104394198792
|-
| 15 || IdRef || 964,663 || 961,030 || 0.9962339179589 || 63,691 || 0.06602409338805 || 30,352 || 0.03146383763034 || 0.4765508470585
|-
| 16 || NLCR || 729,277 || 736,187 || 1.009475137705 || 34,972 || 0.04795434382272 || 16,887 || 0.02315581048079 || 0.4828720118952
|-
| 17 || NUKAT || 700,717 || 686,705 || 0.9800033394366 || 44,916 || 0.06410005751252 || 21,179 || 0.03022475550044 || 0.4715246237421
|-
| 18 || BNF || 621,836 || 624,554 || 1.004370927383 || 51,400 || 0.08265845013798 || 24,822 || 0.03991727722422 || 0.4829182879377
|-
| 19 || NTA || 585,671 || 585,370 || 0.9994860595795 || 52,159 || 0.08905853286231 || 25,953 || 0.04431327485909 || 0.4975747234418
|-
| 20 || PLWABN || 415,562 || 415,419 || 0.9996558876894 || 36,337 || 0.08744062257858 || 18,562 || 0.04466722173827 || 0.5108291823761
|-
| 21 || SBN || 240,462 || 243,582 || 1.012975023081 || 21,412 || 0.08904525455165 || 10,415 || 0.04331245685389 || 0.4864094900056
|-
| 22 || BNE || 224,940 || 226,632 || 1.007522005868 || 20,348 || 0.09045967813639 || 10,487 || 0.04662132124122 || 0.5153823471594
|-
| 23 || CBDB || 413,145 || 419,489 || 1.015355383703 || 111,694 || 0.2703506032991 || 20,121 || 0.04870202955379 || 0.1801439647609
|-
| 24 || Genealogics || 324,214 || 326,057 || 1.005684517017 || 234,543 || 0.7234203334834 || 201,638 || 0.6219287260883 || 0.859705896147
|-
| 25 || Geni || 505,037 || 507,771 || 1.005413464756 || 235,907 || 0.4671083504773 || 145,777 || 0.2886461783988 || 0.6179426638463
|-
| 26 || WikiTree || 411,684 || 412,624 || 1.002283304671 || 249,325 || 0.6056222733942 || 192,847 || 0.4684345274531 || 0.7734763862429
|}