Document checksum facility

diff --git a/doc/pazpar2_protocol.xml b/doc/pazpar2_protocol.xml
index e898566..a8dd4f5 100644 (file)
--- a/doc/pazpar2_protocol.xml
+++ b/doc/pazpar2_protocol.xml
@@ -437,7 +437,7 @@ search.pz2?session=2044502273&command=show&start=0&num=2&sort=title:1
        fetched as "raw" from ZOOM C (raw, original record).
        </para>
        <para>
-       When offset is not given, the Pazpar2 metadata for the record
+       When offset/checksum is not given, the Pazpar2 metadata for the record
        is returned and with metadata for each targets' data specified
        in a 'location' list.
        </para>
@@ -445,6 +445,29 @@ search.pz2?session=2044502273&command=show&start=0&num=2&sort=title:1
      </varlistentry>
 
      <varlistentry>
+      <term>checksum</term>
+      <listitem>
+       <para>
+       This optional parameter is a string which, when given, makes
+       Pazpar2 return the original record for a specific target. The
+       checksum is returned as attribtue 'checksum' in element
+       'location' for show command and record command (when checksum
+       and offset is NOT given).
+       The nativesyntax setting, as usual, is used to determine how to
+       create XML from the original record - unless parameter
+       <literal>binary</literal> is given in which the record is
+       fetched as "raw" from ZOOM C (raw, original record).
+       </para>
+       <para>
+       When offset/checksum is not given, the Pazpar2 metadata for the record
+       is returned and with metadata for each targets' data specified
+       in a 'location' list.
+       </para>
+      </listitem>
+     </varlistentry>
+
+
+     <varlistentry>
       <term>nativesyntax</term>
       <listitem>
        <para>