This is an example of an EPCIS document with an ObjectEvent with action=ADD which represents the creation of a new physical object. It is decorated with gtnet extensions to provide ttData class type.

<?xml version="1.0" encoding="UTF-8"?>
<epcis:EPCISDocument schemaVersion="1" creationDate="2011-09-06T13:22:16.857+02:00" xsi:schemaLocation="urn:epcglobal:epcis:xsd:1 http://schema.tracetracker.com/EPCglobal-epcis-1_0.xsd" xmlns:tc="http://www.tracefood.org/schema/epcis" xmlns:tttrd="http://www.tracetracker.com/trd" xmlns:epcis="urn:epcglobal:epcis:xsd:1" xmlns:gtnet="http://www.globaltraceability.net/schema/epcis" xmlns:ttdata="http://www.tracetracker.com/data" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <EPCISBody>
      <EventList>
         <ObjectEvent>
            <eventTime>2011-08-17T09:40:00Z</eventTime>
            <eventTimeZoneOffset>+00:00</eventTimeZoneOffset>
            <epcList>
               <epc>tix-1524</epc>
            </epcList>
            <action>ADD</action>
            <gtnet:entityClass>Batch</gtnet:entityClass>
            <gtnet:trdType>Hatchery_batch</gtnet:trdType>
         </ObjectEvent>
      </EventList>
   </EPCISBody>
</epcis:EPCISDocument>