Wikidata:Property proposal/national identification number

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Social Security Death Index entry[edit]

Originally proposed at Wikidata:Property proposal/Person

DescriptionSocial Security number for a person listed in Social Security Death Index or Death Master File
RepresentsSocial Security Death Index (Q2296741)
Data typeExternal identifier
Allowed values\d{3}-\d{2}-\d{4}
Example 1Marcy Leroy Ditmanson (Q84938650)397-10-0719
Example 2Robert J. Ronald (Q84953656)527-02-0026
Example 3Alfhild Jensen Gislefoss (Q15924627)397-32-8379
Number of IDs in source89,430,629 For US citizen dead before May 31, 2012
Expected completenessalways incomplete


For relatively non-notable people with relative few internet presence (e.g. here mentions several SSDI entries), or people with main activity outside United States (such as examples above), this may be a useful resource. But I don't know how can we overcome the abuse potential (e.g. crime of identity theft), especially in this anonymously editable wiki. This may provide some guide. (I have proposed that this to only be used as a reference, but someone may add it to items of living people.)

Actually it may be an identifier, but 1. This property may include identification number in different countries 2. In some countries the ID may be reused GZWDer (talk) 20:01, 12 February 2020 (UTC)


  • Pictogram voting comment.svg Comment Yes, it definitely can't be an external id if you are intending this to be used with multiple countries. Also I don't think "stated in" is the right property to specify the particular identification being used. And I think this would be fine as a main statement rather than a reference, so the question would be what qualifier to use. ArthurPSmith (talk) 17:55, 13 February 2020 (UTC)
  • Pictogram voting comment.svg Comment. It shouldn't be limited to numbers either. Can you refine the entire proposal according to what has just been said? Thierry Caro (talk) 10:14, 14 February 2020 (UTC)
  • If the purpose is to include the social security death index, why not use that and call it that? Makes it much easier to ensure that it's used accordingly. --- Jura 17:00, 14 February 2020 (UTC)
    • I would concur, except that the identifier used for the US social security index is the same identification number used for living people for their Social Security benefits, and is considered generally a confidential number for living people, so it would be unclear what to call it to be both accurate and appropriate here... ArthurPSmith (talk) 01:55, 15 February 2020 (UTC)
      • If it's appropriate to include the SSDI here, I'm not sure if it helps to use a name that is too general (current proposal) suggesting to include content that is not appropriate. --- Jura 17:13, 15 February 2020 (UTC)
  • @GZWDer: do you plan to update the proposal or shall we close it? --- Jura 12:43, 21 February 2020 (UTC)
  • Symbol support vote.svg Support I think this is fine in its current state with the "death index" label. ArthurPSmith (talk) 03:06, 22 February 2020 (UTC)
  • @GZWDer, ArthurPSmith, Thierry Caro, Jura1: ✓ Done --Tinker Bell 01:57, 22 March 2020 (UTC)