Property talk:P3642

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ARCHON code
unique number used to identify archival collection locations within the UK and key global repositories holding collections relating to British history

Associated item	UK National Archives (Q392703)
Applicable "stated in" value	discovery.nationalarchives.gov.uk (Q110158722)
Data type	External identifier
Domain	organization (Q43229)
Allowed values	[1-9]\d{0,3}
Example	London Metropolitan Archives (Q6670589) → 74 Diocese of East Anglia Archives (Q108096546) → 2913
Source	https://discovery.nationalarchives.gov.uk/browse
Formatter URL	http://discovery.nationalarchives.gov.uk/details/a?_ref=$1
Tracking: usage	Category:Pages using Wikidata property P3642 (Q28813239)
Related to country	United Kingdom (Q145) (See 326 others)
See also	UK National Archives ID (P3029)
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 Mix'n'match (Report) Database reports/Constraint violations/P3642 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 2,789 Main statement 2,767 99.2% of uses Qualifier 2 <0.1% of uses Reference 20 0.7% of uses
Search for values

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

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/P3642#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). Known exceptions: Jewish Museum, London (Q154414)
List of violations of this constraint: Database reports/Constraint violations/P3642#Single value, SPARQL

Format “[1-9]\d{0,3}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P3642#Format, hourly updated report, SPARQL

Type “organization (Q43229)”: item must contain property “instance of (P31)” with classes “organization (Q43229)” or their subclasses (defined using subclass of (P279)). (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/P3642#Type Q43229, SPARQL

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

List of violations of this constraint: Database reports/Constraint violations/P3642#Entity types, hourly updated report

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/P3642#Scope, SPARQL

Discussion

Archives Portal Europe ID

If a UK organisation has IDs for both ARCHON code (P3642) and Archives Portal Europe ID (P7764), the latter ID should be "GB-" plus the Archon ID.

Here is a query for where the item with the latter does not match the item with the former: https://w.wiki/5J3t

Jheald (talk) 20:59, 14 June 2022 (UTC)

Y All now forced to match. Jheald (talk) 14:49, 22 June 2022 (UTC)

• Possible exception: Albert Sloman Library (Q50826703) / University of Essex Special Collections (Q81165235) where the two underlying websites make different choices. Jheald (talk) 10:14, 17 June 2022 (UTC)

• Query: https://w.wiki/5JaS indicates that there are also a number of cases where a value for archives at (P485) is being used to point to a whole institution/location, that is a broader value than the specialist collections/libraries that have values of ARCHON code (P3642) and//or Archives Portal Europe ID (P7764). Quick take from twitter [1] is that it may be better to leave these as they are, rather than rush in and potentially introduce errors (unless information on more precise location is absolutely cast-iron). Jheald (talk) 20:52, 17 June 2022 (UTC)

• Check query: https://w.wiki/5JaX -- Archon IDs, with comparison of wikidata labels vs Archon names. Jheald (talk) 21:09, 17 June 2022 (UTC)