Property talk:P6900

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NicoNicoPedia ID
identifier for an article in NicoNicoPedia

Applicable "stated in" value	Niconico Pedia (Q10856286)
Has quality	lowercase text (Q65048529)
Data type	External identifier
Allowed values	[^A-Z]+(?!.*?%[0-9A-F]{2}).*
Example	Japanese New Year (Q701398) → お正月 Bloom Into You (Q22932761) → やがて君になる Ai Kayano (Q1187078) → 茅野愛衣
Source	https://dic.nicovideo.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].
Formatter URL	https://dic.nicovideo.jp/a/$1 https://api.nicodic.jp/page.summary/json/a/$1
Robot and gadget jobs	Could be attempted to match Niconicopedia article name with Japanese Wikipedia article names
Related to country	Japan (Q17) (See 145 others)
See also	Moegirlpedia ID (P5737), Niconico ID (P11176), Pixiv Encyclopedia ID (P11408)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P6900 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 7,101 Main statement 7,096 out of 439,863 (2% complete) >99.9% of uses Qualifier 3 <0.1% of uses Reference 2 <0.1% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

Format “[^A-Z]+”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6900#Format, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6900#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6900#Scope, SPARQL

Format “(?!.*?%[0-9A-F]{2}).*”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6900#Format, SPARQL

Label required in languages: ja: Entities using this property should have labels in one of the following languages: ja (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6900#Label in 'ja' language, search, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6900#Unique value, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P6900#Single value, SPARQL

The property value will be transformed to lowercase automatically. Testing: TODO list

Identifiers with a virgule/slash/solidus

Currently, values containing slashes (U+002F) don’t work. E.g for ‘debian gnu/linux’ [1], neither percent-escaping nor direct input works: percent-escaping produces something double-escaped, i.e. https://dic.nicovideo.jp/a/debian%20gnu%252Flinux , while not escaping produces https://dic.nicovideo.jp/a/debian%20gnu/linux which doesn’t resolve to the correct page.

The workaround that I’m currently using is to use a fullwidth slash (／, U+FF0F) instead. This produces the URL https://dic.nicovideo.jp/a/debian%20gnu／linux which does resolve correctly (NicoNicoPedia automatically converts between fullwidth and halfwidth characters), but this is not ideal.

Currently (2023 Aug.) this affects:

• Q46397, Q182652, Q214738, Q427467, Q857823, Q863762, Q1075410, Q19980978, Q11200035, Q1141789, Q1152105, Q11200032, Q2812231, Q56322256, Q50829121, Q63224913, Q65087627, Q7715973, Q119344431

I’m sure more will be added later on. Charp238 (talk) 13:37, 28 August 2023 (UTC)