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<h2>Specification</h2>
<div class="block">
    <p>The latest Internet-Draft at the IETF is v5, published 2016-10-13.
    (Due to a change in authorship the I-D numbering has been reset).
    The specification is split into three parts, Core, Validation, and Hyper-Schema:</p>
    <table class="key-value">
        <tr>
            <td class="key"><a href="latest/json-schema-core.html">JSON Schema Core</a></td>
            <td class="value">defines the basic foundation of JSON Schema</td>
        </tr>
        <tr>
            <td class="key"><a href="latest/json-schema-validation.html">JSON Schema Validation</a></td>
            <td class="value">defines the validation keywords of JSON Schema</td>
        </tr>
        <tr>
            <td class="key"><a href="latest/json-schema-hypermedia.html">JSON Hyper-Schema</a></td>
            <td class="value">defines the hyper-media keywords of JSON Schema</td>
        </tr>
    </table>
    <p>They are also available on the IETF main site: <a href="http://tools.ietf.org/html/draft-wright-json-schema-00">core (draft-wright-json-schema-00)</a>,  <a href="http://tools.ietf.org/html/draft-wright-json-schema-validation-00">validation (draft-wright-json-schema-validation-00)</a> and <a href="http://tools.ietf.org/html/draft-wright-json-schema-hyperschema-00">hyper-schema (draft-wright-json-schema-hyperschema-00)</a>.
    </p>
</div>

<h2>Meta-schemas</h2>
<div class="block">
    <p>The meta-schemas are the schemas which define the JSON Schema and Hyper-Schema formats.</p>
    <p>The latest meta-schema is draft-04. A future release with additional keywords will be published in the near future.</p>
    <table class="key-value">
        <tr>
            <td class="key"><a href="http://json-schema.org/schema">Core/Validation Meta-Schema</a></td>
            <td class="value">Used for schemas written for pure validation.</td>
        </tr>
        <tr>
            <td class="key"><a href="http://json-schema.org/hyper-schema">Hyper Meta-Schema</a></td>
            <td class="value">Used for schemas written for validation and hyper-linking.</td>
        </tr>
    </table>
</div>

<h2>Standard schemas</h2>
<div class="block">
    <p>These sample schemas describe simple data structures which can be expressed as JSON:
    </p>
    <table class="key-value">
        <tr>
            <td class="key"><a href="http://json-schema.org/geo">Geographic Coordinate</a></td>
            <td class="value">a location as longitude and latitude</td>
        </tr>
        <tr>
            <td class="key"><a href="http://json-schema.org/card">Card</a></td>
            <td class="value">a microformat-style representation of a person, company, organization, or place</td>
        </tr>
        <tr>
            <td class="key"><a href="http://json-schema.org/calendar">Calendar</a></td>
            <td class="value">a microformat-style representation of an event</td>
        </tr>
        <tr>
            <td class="key"><a href="http://json-schema.org/address">Address</a></td>
            <td class="value">a microformat-style representation of a street address</td>
        </tr>
    </table>
</div>