diff --git a/ndnx/ndnx-pco.h b/ndnx/ndnx-pco.h
new file mode 100644
index 0000000..6af0f73
--- /dev/null
+++ b/ndnx/ndnx-pco.h
@@ -0,0 +1,110 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ *         Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef NDNX_CONTENT_OBJECT_H
+#define NDNX_CONTENT_OBJECT_H
+
+#include "ndnx-wrapper.h"
+#include "ndnx-common.h"
+#include "ndnx-name.h"
+
+class Hash;
+typedef boost::shared_ptr<Hash> HashPtr;
+
+namespace Ndnx {
+
+struct MisformedContentObjectException : virtual boost::exception, virtual std::exception { };
+
+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 ndn_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 ndn_parsed_ContentObject *
+  pco() const { return &m_pco; }
+
+private:
+  void
+  init(const unsigned char *data, size_t len);
+
+protected:
+  ndn_parsed_ContentObject m_pco;
+  ndn_indexbuf *m_comps;
+  Bytes m_bytes;
+  bool m_verified;
+  bool m_integrityChecked;
+};
+
+const Bytes &
+ParsedContentObject::buf () const
+{
+  return m_bytes;
+}
+
+
+typedef boost::shared_ptr<ParsedContentObject> PcoPtr;
+
+}
+
+#endif // NDNX_CONTENT_OBJECT_H