Property talk:P3120

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TOID
TOpographic IDentifier assigned by the Ordnance Survey to identify a feature in Great Britain

Associated item	Ordnance Survey (Q548721)
Data type	External identifier
Domain	places in UK (note: this should be moved to the property statements)
Allowed values	\d{16}
Example	Surrey (Q23276) → 7000000000013965 (RDF) Hirta (Q180045) → 4000000074586350 (RDF) Bolton (Q184579) → 4000000074550817 (RDF)
Formatter URL	http://data.ordnancesurvey.co.uk/id/$1
Related to country	United Kingdom (Q145) (See 326 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) Chart by item creation date Database reports/Constraint violations/P3120 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 70,295 Main statement 70,170 99.8% of uses Qualifier 3 <0.1% of uses Reference 122 0.2% of uses
Search for values

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

Format “\d{16}”: 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). Known exceptions: England (Q21), Scotland (Q22), Wales (Q25)
List of violations of this constraint: Database reports/Constraint violations/P3120#Format, 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/P3120#Unique value, SPARQL (every item), SPARQL (by value)

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/P3120#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/P3120#Scope, SPARQL

Format change

I hope nobody minds, but I have changed the format for values of this property from "osgb...." to just the string of digits. Removing the "osgb" allows easy dereferencing for many values at http://data.ordnancesurvey.co.uk/id/....

However, it should be noted that that site only allows some TOID values to be dereferenced -- namely, those included in the former 50k Gazetteer, and those in the former Boundary-Line set of administrative boundaries.

Some TOID values -- such as 1000006032892 for the en:Tower of London, previously used as the signature example for the property -- are not available at the above URL, despite being correct. I suggest that these could be marked with the qualifier part of (P361) OS MasterMap (Q7073065). Jheald (talk) 10:00, 19 March 2017 (UTC)