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    <meta name="description" content="Schema.org Property: gtin - A Global Trade Item Number (&lt;a href=&#34;https://www.gs1.org/standards/id-keys/gtin&#34;&gt;GTIN&lt;/a&gt;). GTINs identify trade items, including products and services, using numeric identification codes. The &lt;a class=&#34;localLink&#34; href=&#34;/gtin&#34;&gt;gtin&lt;/a&gt; property generalizes the earlier &lt;a class=&#34;localLink&#34; href=&#34;/gtin8&#34;&gt;gtin8&lt;/a&gt;, &lt;a class=&#34;localLink&#34; href=&#34;/gtin12&#34;&gt;gtin12&lt;/a&gt;, &lt;a class=&#34;localLink&#34; href=&#34;/gtin13&#34;&gt;gtin13&lt;/a&gt;, and &lt;a class=&#34;localLink&#34; href=&#34;/gtin14&#34;&gt;gtin14&lt;/a&gt; properties. The GS1 &lt;a href=&#34;https://www.gs1.org/standards/Digital-Link/&#34;&gt;digital link specifications&lt;/a&gt; express GTINs as URLs. A correct &lt;a class=&#34;localLink&#34; href=&#34;/gtin&#34;&gt;gtin&lt;/a&gt; value should be a valid GTIN, which means that it should be an all-numeric string of either 8, 12, 13 or 14 digits, or a &#34;GS1 Digital Link&#34; URL based on such a string. The numeric component should also have a &lt;a href=&#34;https://www.gs1.org/services/check-digit-calculator&#34;&gt;valid GS1 check digit&lt;/a&gt; and meet the other rules for valid GTINs. See also &lt;a href=&#34;http://www.gs1.org/barcodes/technical/idkeys/gtin&#34;&gt;GS1&#39;s GTIN Summary&lt;/a&gt; and &lt;a href=&#34;https://en.wikipedia.org/wiki/Global_Trade_Item_Number&#34;&gt;Wikipedia&lt;/a&gt; for more details. Left-padding of the gtin values is not required or encouraged." />
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        <h1>gtin</h1>
        <em>A Schema.org Property</em>
        <br/>
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        <br/><em>This term is proposed for full integration into Schema.org, <a title="this term is pending wider review. Feedback is welcomed!" href="docs/pending.home.html">pending</a> implementation feedback and adoption from applications and websites.</em>
        
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    <a href="/Property"  
        class="core" title="Property">Property</a>  > 
					
					
    
    
    <a href="/identifier"  
        class="core" title="identifier">identifier</a> 
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    <a href="/gtin"  
        class="ext ext-pending" title="gtin">gtin</a>
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    <div class="description">A Global Trade Item Number (<a href="https://www.gs1.org/standards/id-keys/gtin">GTIN</a>). GTINs identify trade items, including products and services, using numeric identification codes. The <a class="localLink" href="/gtin">gtin</a> property generalizes the earlier <a class="localLink" href="/gtin8">gtin8</a>, <a class="localLink" href="/gtin12">gtin12</a>, <a class="localLink" href="/gtin13">gtin13</a>, and <a class="localLink" href="/gtin14">gtin14</a> properties. The GS1 <a href="https://www.gs1.org/standards/Digital-Link/">digital link specifications</a> express GTINs as URLs. A correct <a class="localLink" href="/gtin">gtin</a> value should be a valid GTIN, which means that it should be an all-numeric string of either 8, 12, 13 or 14 digits, or a "GS1 Digital Link" URL based on such a string. The numeric component should also have a <a href="https://www.gs1.org/services/check-digit-calculator">valid GS1 check digit</a> and meet the other rules for valid GTINs. See also <a href="http://www.gs1.org/barcodes/technical/idkeys/gtin">GS1's GTIN Summary</a> and <a href="https://en.wikipedia.org/wiki/Global_Trade_Item_Number">Wikipedia</a> for more details. Left-padding of the gtin values is not required or encouraged.</div>
        
    
        
    
	
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                <thead><tr><th>Values expected to be one of these types</th></tr></thead>
                <tr><td><code>
                
                    
                        
    
    
    <a href="/Text"  
        class="core" title="Text">Text</a>
                    
                
                </td></code></tr>
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            <table class="definition-table">
                <thead><tr><th>Used on these types</th></tr></thead>
                <tr><td><code>
                
                    
                        
    
    
    <a href="/Demand"  
        class="core" title="Demand">Demand</a><br/>
                    
                
                    
                        
    
    
    <a href="/Offer"  
        class="core" title="Offer">Offer</a><br/>
                    
                
                    
                        
    
    
    <a href="/Product"  
        class="core" title="Product">Product</a>
                    
                
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     <br/><b><a  id="subtypes" title="Link: #subtypes" href="#subtypes" class="clickableAnchor" >Sub-properties</a></b><ul>
    
	<li>
    
    
    <a href="/gtin12"  
        class="core" title="gtin12">gtin12</a></li>
    

    
	<li>
    
    
    <a href="/gtin13"  
        class="core" title="gtin13">gtin13</a></li>
    

    
	<li>
    
    
    <a href="/gtin14"  
        class="core" title="gtin14">gtin14</a></li>
    

    
	<li>
    
    
    <a href="/gtin8"  
        class="core" title="gtin8">gtin8</a></li>
    
     </ul>
    

        
			
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	<h4  id="acks">Source</h4>
    
	<p><a href="https://github.com/schemaorg/schemaorg/issues/2288">https://github.com/schemaorg/schemaorg/issues/2288</a></p>
    <br/>



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