identifier
The identifier property represents any kind of identifier for any kind of Thing, such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for representing many of these, either as textual strings or as URL (URI) links. See background notes for more details.
- Value
- Property
Value , Text or URL - Used on
- Thing
- Source
- Schema.org 30.1
Used on
One type has an identifier, and so does every type that descends from it.
Its value
Its value is one of these 3 types.
Narrower properties
26 properties are more specific kinds of this one.
- account
Id The identifier for the account the payment will be applied to. - asinPendingAn Amazon Standard Identification Number (ASIN) is a 10-character alphanumeric unique identifier assigned by Amazon.com and its partners for product…
- call
Sign A callsign, as used in broadcasting and radio communications to identify people, radio and TV stations, or vehicles. - confirmation
Number A number that confirms the given order or payment has been received. - dunsThe Dun & Bradstreet DUNS number for identifying an organization or business person.
- edit
EIDR An EIDR (Entertainment Identifier Registry) identifier representing a specific edit / edition for a work of film or television. - flight
Number The unique identifier for a flight including the airline IATA code. - global
Location The Global Location Number (GLN, sometimes also referred to as International Location Number or ILN) of the respective organization, person, or place.Number - gtinPendingA Global Trade Item Number (GTIN).
- gtin12The GTIN-12 code of the product, or the product to which the offer refers.
- gtin13The GTIN-13 code of the product, or the product to which the offer refers.
- gtin14The GTIN-14 code of the product, or the product to which the offer refers.
- gtin8The GTIN-8 code of the product, or the product to which the offer refers.
- has
GS1 The GS1 digital link associated with the object.Digital Link - isbnThe ISBN of the book.
- issnThe International Standard Serial Number (ISSN) that identifies this serial publication.
- legislation
Identifier An identifier for the legislation. - lei
Code An organization identifier that uniquely identifies a legal entity as defined in ISO 17442. - nsnIndicates the NATO stock number (nsn) of a Product.
- order
Number The identifier of the transaction. - product
ID The product identifier, such as ISBN. - serial
Number The serial number or any alphanumeric identifier of a particular product. - skuThe Stock Keeping Unit (SKU), i.e. a merchant-specific identifier for a product or service, or the product to which the offer refers.
- tax
ID The Tax / Fiscal ID of the organization or person, e.g. the TIN in the US or the CIF/NIF in Spain. - title
EIDR An EIDR (Entertainment Identifier Registry) identifier representing at the most general/abstract level, a work of film or television. - us
NPIPending A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for…
Where this comes from
Quoted from Schema.org, and credited. Nothing in this definition is written by us.
- Published bySchema.orgschema.org/identifier
- ReleaseVersion 30.116 September 2026
- LicenseCC BY-SA 3.0Free to copy and adapt, with credit, under the same licence
- Changed by usNothing.
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