diff --git a/mdx/uk/beans.xml b/mdx/uk/beans.xml
index fb7e704c..942ec141 100644
--- a/mdx/uk/beans.xml
+++ b/mdx/uk/beans.xml
@@ -11,6 +11,23 @@
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
         http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
 
+    <!--
+        uk_federation_uri
+        
+        URI for the UK federation.  Used in several contexts:
+        
+        * as the Name attribute for the main EntitiesDescriptor in UK federation metadata
+          (not always the document element)
+          
+        * in mdrpi:RegistrationInfo, as the unique identifier for the UK federation registrar
+        
+        * in mdrpi:PublicationInfo, as the unique identifier for the UK federation publisher
+    -->
+    <bean id="uk_federation_uri" class="java.lang.String">
+        <constructor-arg value="http://ukfederation.org.uk"/>
+    </bean>
+
+
     <!--
         uk_fetchFragmentFiles
         
@@ -253,8 +270,8 @@
     -->
     <bean id="uk_assemble" parent="stage_parent"
         class="net.shibboleth.metadata.dom.saml.EntitiesDescriptorAssemblerStage"
-        p:id="uk_assemble"
-        p:descriptorName="http://ukfederation.org.uk">
+        p:id="uk_assemble">
+        <property name="descriptorName" ref="uk_federation_uri"/>
         <property name="itemOrderingStrategy">
             <bean class="uk.org.ukfederation.mda.UKEntityOrderingStrategy"/>
         </property>
@@ -345,15 +362,6 @@
         *************************************************
     -->
     
-    <!--
-        uk_registrar
-        
-        Unique ID for the registrar associated with this channel.
-    -->
-    <bean id="uk_registrar" class="java.lang.String">
-        <constructor-arg value="http://ukfederation.org.uk"/>
-    </bean>
-    
     <!--
         uk_check_regauth
         
@@ -364,7 +372,7 @@
         p:id="uk_check_regauth">
         <property name="transformParameters">
             <map>
-                <entry key="expectedAuthority" value-ref="uk_registrar"/>
+                <entry key="expectedAuthority" value-ref="uk_federation_uri"/>
             </map>
         </property>
     </bean>
@@ -379,7 +387,7 @@
         p:id="uk_default_regauth">
         <property name="transformParameters">
             <map>
-                <entry key="defaultAuthority" value-ref="uk_registrar"/>
+                <entry key="defaultAuthority" value-ref="uk_federation_uri"/>
             </map>
         </property>
     </bean>
diff --git a/mdx/uk/final_tweak.xsl b/mdx/uk/final_tweak.xsl
index f8afebff..f27f7e9a 100644
--- a/mdx/uk/final_tweak.xsl
+++ b/mdx/uk/final_tweak.xsl
@@ -8,6 +8,7 @@
 -->
 <xsl:stylesheet version="1.0"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdrpi="urn:oasis:names:tc:SAML:metadata:rpi"
 
 	xmlns:date="http://exslt.org/dates-and-times"
 	xmlns:mdxDates="xalan://uk.ac.sdss.xalan.md.Dates"
@@ -29,6 +30,14 @@
 	-->
 	<xsl:param name="extraText"/>
 	
+	<!--
+        publisher
+        
+        This parameter, if present, prompts the generation of a PublicationInfo
+        element on the EntitiesDescriptor.
+    -->
+	<xsl:param name="publisher"/>
+	
 	<!--
 		validityDays
 		
@@ -75,6 +84,22 @@
 			</xsl:attribute>
 			<xsl:apply-templates select="@*"/>
 			<xsl:call-template name="document.comment"/>
+			
+			<!--
+                Add an Extensions element if there isn't one, but we need one
+                so that we can put a PublicationInfo inside it.
+            -->
+			<xsl:if test="$publisher and not(md:Extensions)">
+				<xsl:text>&#10;</xsl:text>
+				<xsl:text>    </xsl:text>
+				<xsl:element name="md:Extensions">
+					<xsl:call-template name="generate.publicationInfo"/>
+					<xsl:text>&#10;</xsl:text>
+					<xsl:text>    </xsl:text>
+				</xsl:element>
+				<xsl:text>&#10;</xsl:text>
+			</xsl:if>
+			
 			<xsl:apply-templates select="node()"/>
 		</EntitiesDescriptor>
 	</xsl:template>
@@ -94,7 +119,12 @@
 				<xsl:text>&#10;</xsl:text>
 			</xsl:if>
 			<xsl:text>&#9;Aggregate built </xsl:text>
-			<xsl:value-of select="$now"/>
+            <xsl:value-of select="$normalisedNow"/>
+            <xsl:if test="string($normalisedNow) != string($now)">
+                <xsl:text> (</xsl:text>
+                <xsl:value-of select="$now"/>
+                <xsl:text> local)</xsl:text>
+            </xsl:if>
 			<xsl:text>&#10;</xsl:text>
 			<xsl:text>&#10;</xsl:text>
 			<xsl:text>&#9;Aggregate valid for </xsl:text>
@@ -105,6 +135,39 @@
 		</xsl:comment>
 	</xsl:template>
 	
+	<!--
+        Document element's Extensions.
+        
+        Insert a PublicationInfo at the top, if required.
+    -->
+	<xsl:template match="/md:EntitiesDescriptor/md:Extensions">
+		<xsl:copy>
+			<xsl:if test="$publisher">
+				<xsl:call-template name="generate.publicationInfo"/>
+			</xsl:if>
+			<xsl:apply-templates select="node()"/>
+		</xsl:copy>
+	</xsl:template>
+	
+	<!--
+        PublicationInfo generation.
+        
+        Assumption: called at the start of the document element's Extensions, at 4-space
+        indentation, so the element itself requires 8-space indentation.
+    -->
+	<xsl:template name="generate.publicationInfo">
+		<xsl:text>&#10;</xsl:text>
+		<xsl:text>        </xsl:text>
+		<xsl:element name="mdrpi:PublicationInfo">
+			<xsl:attribute name="publisher">
+				<xsl:value-of select="$publisher"/>
+			</xsl:attribute>
+			<xsl:attribute name="creationInstant">
+				<xsl:value-of select="$normalisedNow"/>
+			</xsl:attribute>
+		</xsl:element>
+	</xsl:template>
+	
 	<!--By default, copy text blocks, comments and attributes unchanged.-->
 	<xsl:template match="text()|comment()|@*">
 		<xsl:copy/>
diff --git a/mdx/uk/generate.xml b/mdx/uk/generate.xml
index a9a74d01..94af8ea2 100644
--- a/mdx/uk/generate.xml
+++ b/mdx/uk/generate.xml
@@ -259,6 +259,7 @@
         <property name="transformParameters">
             <map>
                 <entry key="extraText" value="Feature test metadata; not for production use"/>
+                <entry key="publisher" value-ref="uk_federation_uri"/>
             </map>
         </property>
     </bean>
@@ -299,6 +300,7 @@
         <property name="transformParameters">
             <map>
                 <entry key="extraText" value="Prototype export metadata; not for production use"/>
+                <entry key="publisher" value-ref="uk_federation_uri"/>
             </map>
         </property>
     </bean>