identifier

Thing > Property > 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.

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Canonical URL: http://schema.org/identifier
Equivalent Property: dct:identifier
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Values expected to be one of these types
`PropertyValue` `Text` `URL`

Used on these types
`Thing`

Sub-properties
`accountId`
`confirmationNumber`
`duns`
`flightNumber`
`globalLocationNumber`
`gtin`
`gtin12`
`gtin13`
`gtin14`
`gtin8`
`isbn`
`issn`
`legislationIdentifier`
`leiCode`
`nsn`
`orderNumber`
`productID`
`serialNumber`
`sku`
`taxID`

Examples

Example 1

Without Markup Microdata RDFa JSON-LD

<p>
Title: Library linked data in the cloud : OCLC's experiments with new models of resource description<br/>
Author: Carol Jean Godby<br/>
ISBN: 9781627052191<br/>
oclcnum: 889647468<br/>
Details: <a href="http://www.worldcat.org/oclc/889647468">WorldCat.org</a>
</p>

<div itemscope itemtype="http://schema.org/Book">
    Title: <span itemprop="name">Library linked data in the cloud : OCLC's experiments with new models of resource description</span><br>
    Author: <span itemprop="author">Carol Jean Godby</span><br>
    ISBN: <span itemprop="isbn">9781627052191</span><br>
    <div itemscope itemprop="identifier" itemtype="http://schema.org/PropertyValue">
        <span itemprop="propertyID">OCoLC</span>: <span itemprop="value">889647468</span>
    </div><br>
    Details: <a itemprop="sameAs" href="http://www.worldcat.org/oclc/889647468">WorldCat.org</a>
</div>

<div vocab="http://schema.org/" typeof="Book">
    Title: <span property="name">Library linked data in the cloud : OCLC's experiments with new models of resource description</span><br>
    Author: <span property="author">Carol Jean Godby</span><br>
    ISBN: <span property="isbn">9781627052191</span><br>
    <div property="identifier" typeof="PropertyValue">
        <span property="propertyID">OCoLC</span>: <span property="value">889647468</span>
    </div>
</div>
    <br>
    Details: <a property="sameAs" href="http://www.worldcat.org/oclc/889647468">WorldCat.org</a>

{
 "@context": "http://schema.org/",
 "@type": "Book",
 "name": "Library linked data in the cloud : OCLC's experiments with new models of resource description",
 "author": "Carol Jean Godby",
 "isbn": "9781627052191"
 "identifier": {
 "@type": "PropertyValue",
   "propertyID": "OCoLC",
   "value":  "889647468"
   },
 "sameAs": "http://www.worldcat.org/oclc/889647468"
}

Example 2

Without Markup Microdata RDFa JSON-LD

<div">
Company Record
<h1>A UK Organization Ltd</h1>
Registered office address: 1 A Street, London<br/>
Company Number: 99065782
</div>

<div itemscope itemtype="http://schema.org/LocalBusiness">
    Company Record
    <h1 itemprop="name">A UK Organization Ltd</h1>
    Registered office address: <span itemprop="address">1 A Street, London</span><br>
    <div itemscope="" itemprop="identifier" itemptype="http://schema.org/PropertyValue">
        <span itemprop="propertyID">Company Number</span>: <span itemprop="value">99065782</span>
    </div><br>
</div>

<div vocab="http://schema.org/" typeof="LocalBusiness">
    Company Record
    <h1 property="name">
        A UK Organization Ltd</h1>
        Registered office address: <span property="address">1 A Street, London</span><br>
    <div property="identifier" typeof="PropertyValue">
        <span property="propertyID">Company Number</span>: <span property="value">99065782</span>
    </div><br>
</div>

{
 "@context": "http://schema.org/",
 "@type": "LocalBusiness",
 "name": "A UK Organization Ltd",
 "address": "1 A Street, London"
 "identifier": {
 "@type": "PropertyValue",
   "propertyID": "Company Number",
   "value":  "99065782"
   },
}