When viewing a given published finding aid in OAC, you can determine the underlying EAD file by viewing the underlying HTML. Use the "View" option in your browser to select the option to see the HTML page code, and scroll to the bottom of the page.
You'll see a path to the version of the EAD file that has been indexed in OAC, along with the date stamp indicating when the EAD file was published:
Example:
EAD: http://voro.cdlib.org/oac-ead/prime2002/ampas/clac/Collection1086.xml
dateStamp: 2013-11-04
The original version of the EAD file that was uploaded and submitted for publication to OAC can be found in your institution's Production Directory on the OAC server.
