title: Google Play Order ID updated to new format
body: <p>All my recent Android app purchases show a new order ID format.</p>
  
  <p><strong>The OLD format:</strong></p>
  
  <pre><code>[merchant ID].[actual order ID]
  </code></pre>
  
  <p>We could use this format to check if the prefix of the order ID matches with the merchant ID and prevent possible hacks by apps like Freedom.</p>
  
  <p><strong>The NEW format:</strong></p>
  
  <pre><code>GPA. 1234-5678-9123-45678
  </code></pre>
  
  <ul>
  <li>All my recent orders start with "<strong>GPA.</strong>" (yes the additional dot is also there)</li>
  <li>There is a 17 digit number divided into 4 blocks</li>
  <li>The first 3 blocks contain 4 digits each and the last having 5 digits</li>
  </ul>
  
  <p>I want to know what does this number represent, the significance of the sub-blocks, is the merchant ID included anywhere?</p>