same as external identifier (same as) – P20

P20 same as external identifier (same as)

Domain:

crm:E1 CRM Entity

Range:

crm:E42 Identifier

Quantification:

0,n:0,n

Subproperty of:

Superproperty of:

Scope note:

This property associates an entity, identified in the domain information system, with a persistent identifier provided for the same resource (be this physical or conceptual) in an external namespace i.e. in a different information system in which the entity receives an identifier (range of the property).

The nature of the external identifier (database primary key, authority file number, etc.) will be provided using specific types. In case of URIs, in the sense of the Semantic Web, the subproperty crm-sup:P28 same as URI [owl:sameAs] is to be preferred.

Examples:

No example yet.

In First Order Logic:

  • P20(x,y) ⇒ E1(x)
  • P20(x,y) ⇒ E42(y)
  • P20(x,y) ⇒ P1(x,y)

Scope notes

Show Scope note Language Namespace View details Comments
This property associates an entity, identified in the domain information system, with a persistent identifier provided for the same resource (be this physical or conceptual) in an external namespace i.e. in a different information system in which the entity receives an identifier (range of the property). The nature of the external identifier (database primary key, authority file number, etc.) will be provided using specific types. In case of URIs, in the sense of the Semantic Web, the subproperty crm-sup:P28 same as URI [owl:sameAs] is to be preferred. en SDHSS CIDOC CRM supplement (v1.0) 0

Examples

Show Example Language Namespace View details Comments

Additional notes

Show Notes Type Language Namespace View details Comments

Identifier: P20

Official URI: https://sdhss.org/ontology/crm-supplement/1.0/P20
OntoME URI: https://ontome.net/ontology/p1842

Domain and range

crm:E1 CRM Entity → P20 same as external identifier (same as) → crm:E42 Identifier  (Quantifiers 0,n:0,n)

Labels

Label Language Last updated View details Comments
same as external identifier (same as) * en 2025-06-20 0

: Standard label for this language

Namespace

Namespace Last updated
SDHSS CIDOC CRM supplement (v1.0) 2025-06-20
SDHSS CIDOC CRM Base and LRM supplement 2021-04-28

Parent properties

Domain Property Range Property namespace Relation defined in Justification View details Edit Delete Comments
crm:E1 CRM Entity (0,n) P1 is identified by (identifies) (0,n) crm:E41 Appellation CIDOC CRM version 6.2 SDHSS CIDOC CRM supplement (v1.0) 0

Ancestor properties

Domain Property Range Depth Property namespace

Child and descendant properties

Domain Property Range Depth Property namespace
crm:E1 CRM Entity (0,n) P28 same as URI [owl:sameAs] (same as) (0,n) crm-sup:C30 Uniform Resource Identifier (URI) 1 SDHSS CIDOC CRM supplement (v1.0)

Related properties

Relation Property Property namespace Relation defined in Justification View details Edit Delete Comments

Profiles using this property

Label Version Status Last updated
Geovistory Basics 1 Ongoing 2025-09-22
Identifiers 1 Ongoing 2023-10-25

Comments