Identifier

https://publicschema.org/Identifier

normative

A coded value assigned to an entity within an identification scheme. Identifiers disambiguate entities such as persons, groups, locations, administrative areas, or records within a specific registry or catalog. The identifier is the value and its scheme; documents that carry identifiers (passports, national ID cards, beneficiary cards) are modeled separately as IdentityDocument.

JSON-LD JSON Schema CSV Definition (Excel) Template (Excel)

Properties

Property Type Definition
Identity
Identifier value string The alphanumeric value of the identifier as issued or recorded.
Identifier type string (identifier-type)
The category of identifier value (for example, national ID number, passport number, P-code).
Administrative
Identifier scheme ID string
A URI or code that identifies the scheme or system under which the identifier was assigned.
Identifier scheme name string
The human-readable name of the identifier scheme, such as 'National Identity Number' or 'Social Security Number'.

Evidence

Present in all 6 mapped delivery systems.

All mapped systems carry coded values identifying persons, groups, or administrative areas, though most conflate the value with document metadata. After the split, Identifier covers only the value and scheme; the lifecycle concerns live on IdentityDocument.

Standard Equivalent Match
ADMS Identifier exact
ADMS Identifier is a generic notation-plus-scheme value, aligning with this Identifier. Document-level lifecycle metadata (issuer, issue date) is carried on IdentityDocument.
DCI Core Identifier exact
DCI Identifier is also a (type, value) pair without document lifecycle fields.

Referenced by this concept

See full reference catalogue