Following Wrapper Tag is being executed :

<script type="text/javascript">

(function()

{ var wtads = document.createElement('script');

wtads.async = true;

wtads.type = 'text/javascript';

wtads.src = 'owt.js';

var node = document.getElementsByTagName('script')[0];

node.parentNode.insertBefore(wtads, node);

})();

</script>

GPT implementation is ASYNC Non-SRA (Refer this for types of GPT Tags)