title: Are hashes in the names Javascript and CSS files used for integrity checking?
body: <p>Many websites use hashes in  Javacript and CSS file's name. For example, this page, as of writing, uses a file referred to with URL <code>.../stacks.min.js?v=b0f9a80d741d</code>. Other sites just place a short hash in the file's name: <code>main.abcd123.js</code></p>
  <ul>
  <li>Is this used automated integrity checking? For example, when the browser loads <code>stacks.min.js?v=b0f9a80d741d</code>, does is verify that a hash or digest of this file matches <code>b0f9a...</code>.</li>
  <li>Does this pattern have a name?</li>
  </ul>