Wikidata:Property proposal/NDL law ID

Description	identifier in the NDL (National Diet Library) Japanese Law Index
Represents	Japanese Law Index (Q98756114)
Data type	External identifier
Domain	statute (Q820655) of Japan (Q17)
Allowed values	\d{10}
Example 1	Civil Code of Japan (Q10372494) → 0000003534
Example 2	Medical Practitioners' Act (Q11404606) → 0000040330
Example 3	Fire Service Act (Q11559527) → 0000040301
Source	https://hourei.ndl.go.jp/
External links	Use in sister projects: [ar] • [de] • [en] • [es] • [fr] • [he] • [it] • [ja] • [ko] • [nl] • [pl] • [pt] • [ru] • [sv] • [vi] • [zh] • [commons] • [species] • [wd] • [en.wikt] • [fr.wikt].
Planned use	To link from law items of Japan to Japanese Law Index (日本法令索引)
Expected completeness	always incomplete (Q21873886)
Formatter URL	https://hourei.ndl.go.jp/#/detail?lawId=$1
Country	Japan (Q17)
See also	NDL Authority ID (P349), NDL Bib ID (P1054), JPNO (P2687), CELEX number (P476), law identifier (P8550)

Recently law identifier (P8550) has been created, and items of Japanese laws are getting a boost. However, there are few external identifiers for Japanese laws in Wikidata. Japanese Law Index (日本法令索引) is a database provided by National Diet Library (Q477675) and it contains links to full text of laws. --Okkn (talk) 07:38, 28 August 2020 (UTC)[reply]

Strong support :It is useful because it covers abolished past laws.(廃止された過去の法律も網羅しているため有用）--Camillu87 (talk) 09:35, 28 August 2020 (UTC)[reply]

Support 改正履歴などもあるので、有用だと思います。--Gminky (talk) 16:43, 28 August 2020 (UTC)[reply]
Comment In principle yes, but has the lawId any official status? I ask because a similar identifier for Austrian laws could also be of service (e.g. 10000138 for Federal Constitutional Law (Q1005391), but its ID seems to be similarly non-official and randomly given by the site (although it has been stable for many, many years). --Emu (talk) 17:06, 29 August 2020 (UTC)[reply]
- Actually, there is no official mention of whether the ID is fixed or not. However, I think that the use of this ID is permissible, as links to the law pages are allowed in the "How to Use Guide" and, as far as I know, there is no alternative freely accessible database. --Okkn (talk) 22:21, 29 August 2020 (UTC)[reply]
Support. YULdigitalpreservation (talk) 12:22, 3 September 2020 (UTC)[reply]
Comment @Okkn:, please

add subject item
NDL can be written National Diet Library in the description
a RegEx does not start and end with a /. Cordially. —Eihel (talk) 07:32, 9 September 2020 (UTC)[reply]

Done NDL law ID (P8635) Pamputt (talk) 05:46, 22 September 2020 (UTC)[reply]