.example.com/bob/public/documents/
    * https://storage.example.com/bob/public/documents/draft.txt

<span><a name="section-9" href="#section-9">9</a>. Bearer tokens and access control</span>

    A bearer token represents one or more access scopes. These access
    scopes are represented as strings of the form &lt;module&gt; &lt;level&gt;,
    where the &lt;module&gt; string SHOULD be lower-case alphanumerical, other
    than the reserved word &#39;public&#39;, and &lt;level&gt; can be &#39;:r&#39; or &#39