**Examples**
  
  (GET) Retrieve system metadata from a Member Node for object "XYZ332" which
  happens to be science metadata (an EML document) that has been obsoleted by 
  a new version with identifier "XYZ33"::
  
    curl http://m1.dataone.org/mn/v1/meta/XYZ332
  
    <?xml version="1.0" encoding="UTF-8"?>
    <d1:systemMetadata xmlns:d1="http://ns.dataone.org/service/types/v1">
      <serialVersion>1</serialVersion>
      <identifier>XYZ332</identifier>
      <formatId>eml://ecoinformatics.org/eml-2.1.0</formatId>
      <size>20875</size>
      <checksum algorithm="MD5">e7451c1775461b13987d7539319ee41f</checksum>
      <submitter>uid=mbauer,o=NCEAS,dc=ecoinformatics,dc=org</submitter>
      <rightsHolder>uid=mbauer,o=NCEAS,dc=ecoinformatics,dc=org</rightsHolder>
      <accessPolicy>
        <allow>
          <subject>uid=jdoe,o=NCEAS,dc=ecoinformatics,dc=org</subject>
          <permission>read</permission>
          <permission>write</permission>
          <permission>changePermission</permission>
        </allow>
        <allow>
          <subject>public</subject>
          <permission>read</permission>
        </allow>
        <allow>
          <subject>uid=nceasadmin,o=NCEAS,dc=ecoinformatics,dc=org</subject>
          <permission>read</permission>
          <permission>write</permission>
          <permission>changePermission</permission>
        </allow>
      </accessPolicy>
      <replicationPolicy replicationAllowed="false"/>
      <obsoletes>XYZ331</obsoletes>
      <obsoletedBy>XYZ333</obsoletedBy>
      <archived>true</archived>
      <dateUploaded>2008-04-01T23:00:00.000+00:00</dateUploaded>
      <dateSysMetadataModified>2012-06-26T03:51:25.058+00:00</dateSysMetadataModified>
      <originMemberNode>urn:node:TEST</originMemberNode>
      <authoritativeMemberNode>urn:node:TEST</authoritativeMemberNode>
    </d1:systemMetadata>


  (GET) Attempt to retrieve system metadata for an object that does not exist.::
  
    curl http://cn.dataone.org/cn/v1/meta/SomeObjectID
  
    <?xml version="1.0" encoding="UTF-8"?>
    <error detailCode="1800" errorCode="404" name="NotFound">
      <description>No system metadata could be found for given PID: SomeObjectID</description>
    </error>