Property talk:P4750

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National Historic Ships ID
ID for a vessel as found on the National Historic Ships website

Description	ID for a vessel, as found on the www.nationalhistoricships.org.uk website.
Associated item	National Historic Ships (Q6973379)
Data type	External identifier
Domain	According to this template: watercraft (Q1229765) According to statements in the property: watercraft (Q1229765) When possible, data should only be stored as statements
Allowed values	According to this template: [1-9]\d* According to statements in the property: [1-9]\d* When possible, data should only be stored as statements
Example	According to this template: Aberdonia (Q4667044) = 516 According to statements in the property: Aberdonia (Q4667044) → 516/aberdonia HMS Victory (Q213958) → 499/hms-victory When possible, data should only be stored as statements
Source	According to this template: http://www.nationalhistoricships.org.uk/ According to statements in the property: http://www.nationalhistoricships.org.uk/search_the_registers.php When possible, data should only be stored as statements
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://www.nationalhistoricships.org.uk/register/$1
Tracking: usage	Category:Pages using Wikidata property P4750 (Q56250660)
Related to country	United Kingdom (Q145) (See 329 others)
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) Mix'n'match (Report) Database reports/Constraint violations/P4750 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 81 Main statement 78 96.3% of uses Qualifier 2 2.5% of uses Reference 1 1.2% of uses
Search for values

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

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/P4750#Single value, SPARQL

Type “watercraft (Q1229765)”: item must contain property “instance of (P31)” with classes “watercraft (Q1229765)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P4750#Type Q1229765, hourly updated report, SPARQL

Format “[1-9]\d*\/.+”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P4750#Format, hourly updated report, 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/P4750#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/P4750#Scope, SPARQL

Website url changed

The registry website gives 404 errors for incoming links formatted as we currently do as https://www.nationalhistoricships.org.uk/register/498, as the format for ships now has the ship name after the number, ie https://www.nationalhistoricships.org.uk/register/498/hms-unicorn. So while the number is correct, it needs extra formatting.Vicarage (talk) 21:41, 19 June 2022 (UTC)

I have manually fixed all the 50odd entries to have number/text format, and changed the property label to make clear that its an ID, not a number, that is needed. The number can be retrieved by parsing text before the /. Vicarage (talk) 08:36, 20 June 2022 (UTC)

I have asked the NHS team to add URLs to their database spreadsheet https://www.nationalhistoricships.org.uk/sites/default/files/all_registers_jan_2020.xlsx, to map our mapping task easier. Vicarage (talk) 07:47, 21 June 2022 (UTC)