diff --git a/disabled/pco.h b/disabled/pco.h
new file mode 100644
index 0000000..6931022
--- /dev/null
+++ b/disabled/pco.h
@@ -0,0 +1,101 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *                     Alexander Afanasyev
+ *                     Zhenkai Zhu
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ *         Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef NDN_CONTENT_OBJECT_H
+#define NDN_CONTENT_OBJECT_H
+
+#include "ndn.cxx/wrapper.h"
+#include "ndn.cxx/common.h"
+#include "ndn.cxx/fields/name.h"
+#include "ndn.cxx/helpers/hash.h"
+
+namespace ndn {
+
+// class Cert;
+// typedef boost::shared_ptr<Cert> CertPtr;
+
+class ParsedContentObject
+{
+public:
+  enum Type
+  {
+    DATA,
+    KEY,
+    OTHER
+  };
+  ParsedContentObject(const unsigned char *data, size_t len, bool verified = false);
+  ParsedContentObject(const unsigned char *data, const ccn_parsed_ContentObject &pco, bool verified = false);
+  ParsedContentObject(const Bytes &bytes, bool verified = false);
+  ParsedContentObject(const ParsedContentObject &other, bool verified = false);
+  virtual ~ParsedContentObject();
+
+  Bytes
+  content() const;
+
+  BytesPtr
+  contentPtr() const;
+
+  Name
+  name() const;
+
+  Name
+  keyName() const;
+
+  HashPtr
+  publisherPublicKeyDigest() const;
+
+  Type
+  type() const;
+
+  inline const Bytes &
+  buf () const;
+
+  bool
+  verified() const { return m_verified; }
+
+  // void
+  // verifySignature(const CertPtr &cert);
+
+  const unsigned char *
+  msg() const { return head(m_bytes); }
+
+  const ccn_parsed_ContentObject *
+  pco() const { return &m_pco; }
+
+private:
+  void
+  init(const unsigned char *data, size_t len);
+
+protected:
+  ccn_parsed_ContentObject m_pco;
+  ccn_indexbuf *m_comps;
+  Bytes m_bytes;
+  bool m_verified;
+  bool m_integrityChecked;
+};
+
+typedef boost::shared_ptr<ParsedContentObject> PcoPtr;
+
+namespace Error {
+struct MisformedContentObject : virtual boost::exception, virtual std::exception { };
+}
+
+const Bytes &
+ParsedContentObject::buf () const
+{
+  return m_bytes;
+}
+
+
+}
+
+#endif // NDN_CONTENT_OBJECT_H