Linked Data

[introduction about the beta release]

Accessing the data

URI patterns

The dataset uses URIs of the form:

For entities, i.e. persons and organizations: https://isni.org/isni/{ISNI} where ISNI is the 16 digit identifier. For example, https://isni.org/isni/0000000080456315

 

https://isni.org/isni/{ISNI} identifies the entity, i.e. the person or organization

https://isni.org/isni/{ISNI}/about identifies the description of the entity

https://isni.org/isni/{ISNI}/about.{ext} , for example https://isni.org/isni/{ID}/about.rdf identifies the RDF/XML description of the entity

 

For metadata terms in the ISNI ontology, https://isni.org/ontology#{term}. For example, https://isni.org/ontology#hasDeprecatedISNI

Data model

ISNI RDF data model

Person

Person entity table
RDF propertyExpected value/rangeDefinitionCardinality
rdfs:labelLiteral16 digit ISNI presented as stated in the ISNI ISO standard, e.g. ISNI 0000 0000 8045 63151
rdf:typeClassAlways schema:Person1
schema:alternateNameLiteralName of the public identity1..*
schema:birthDateLiteralYear of birth of the public identity0..1
schema:deathDateLiteralYear of death of the public identity0..1
schema:identifierClassAlways schema:PropertyValue1
isni:hasDeprecatedISNILiteralDeprecated ISNI; 16 digits with no space0..*
owl:sameAsClassEntity identified by a URI and modelled as a real world object0..*
madsrdf:isIdentifiedByAuthorityClassEntity identified by a URI and modelled as an authority/skos:Concept0..*
dcterms:sourceClassEntity identified by a non machine actionable URI, i.e. a URL0..*

Organization

Organization entity table
RDF propertyExpected value/rangeDefinitionCardinality
rdfs:labelLiteral16 digit ISNI presented as stated in the ISNI ISO standard, e.g. ISNI 0000 0001 2353 19451
rdf:typeClassAlways schema:Organization1
schema:alternateNameLiteralName of the public identity1..*
schema:identifierClassAlways schema:PropertyValue1
isni:hasDeprecatedISNILiteralDeprecated ISNI; 16 digits with no space0..*
owl:sameAsClassEntity identified by a URI and modelled as a real world object 0..*
madsrdf:isIdentifiedByAuthorityClassEntity identified by a URI and modelled as an authority/skos:Concept0..*
dcterms:sourceClassEntity identified by a non machine actionable URI, i.e. a URL0..*

Property Value

Always a blank node

Property value table
RDF propertyExpected value/rangeDefinitionCardinality
rdf:typeClassschema:PropertyValue1
schema:propertyIDClassAlways the Wikidata identifier for the ISNI schema, i.e. http://www.wikidata.org/entity/Q4230481
schema:valueLiteral16 digit ISNI – no blank spaces1
 

Expressing deprecation

The model uses the isni specific property isni:hasDeprecatedISNI , for example:

<https://isni.org/isni/0000000121394035>  isni:hasDeprecatedISNI "000000012407618X" .

where ISNI 0000 0001 2407 618X is is the deprecated ISNI for the entity with the assigned ISNI 0000 0001 2139 4035

 

In addition to the isni:hasDeprecatedISNI property, the following construct is also used:

<https://isni.org/isni/000000012407618X>

owl:deprecated  "true”^^xsd:Boolean" ;

rdfs:comment    "this identifier is deprecated. See rdfs:seeAlso link for new identifier" ;

rdfs:seeAlso        <https://isni.org/isni/0000000121394035> .

Linking to external resources

The model uses three different properties to establish relationships with external resources:

  • owl:sameAs if the external resource has been modelled as a real world object (RWO). For example, Wikidata resources identified by URIs with the pattern http://www.wikidata.org/entity/{ID}

  • madsrdf:isIdentifiedByAuthority if the external resource has been modelled as an Authority, i.e. a document about a Thing rather than the Thing itself. For example, data.bnf.fr resources identified by URIs with the pattern http://data.bnf.fr/{ID}

  • dcterms:source if the URI is a URL, i.e. points to a webpage with no machine actionable data.

The dataset currently includes links to: data.bnf.fr, wikidata, musicbrainz, National Library of Korea resources and National Asssembly Library of Korea, where they exist in the ISNI database. 

 

Please contact info@isni.org if you have any feedback