<?xml version="1.0"?>
<!DOCTYPE envelope [
  <!ENTITY dsig "http://www.w3.org/2000/09/xmldsig#">
  <!ENTITY c14n "http://www.w3.org/TR/2001/REC-xml-c14n-20010315">
  <!ENTITY xpath "http://www.w3.org/TR/1999/REC-xpath-19991116">
  <!ENTITY xslt "http://www.w3.org/TR/1999/REC-xslt-19991116">
  <!ATTLIST Notaries Id ID #IMPLIED>
]>
<Object Id="object-1" MimeType="text/plain">I am the text.</Object>