diff --git a/src/detail/state.cpp b/src/detail/state.cpp
new file mode 100644
index 0000000..e5c6c47
--- /dev/null
+++ b/src/detail/state.cpp
@@ -0,0 +1,113 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2014-2018,  The University of Memphis
+ *
+ * This file is part of PSync.
+ * See AUTHORS.md for complete list of PSync authors and contributors.
+ *
+ * PSync is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * PSync 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
+ * PSync, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "state.hpp"
+
+namespace psync {
+
+State::State(const ndn::Block& block)
+{
+  wireDecode(block);
+}
+
+void
+State::addContent(const ndn::Name& prefix)
+{
+  m_content.emplace_back(prefix);
+}
+
+const ndn::Block&
+State::wireEncode() const
+{
+  if (m_wire.hasWire()) {
+    return m_wire;
+  }
+
+  ndn::EncodingEstimator estimator;
+  size_t estimatedSize = wireEncode(estimator);
+
+  ndn::EncodingBuffer buffer(estimatedSize, 0);
+  wireEncode(buffer);
+
+  m_wire = buffer.block();
+  return m_wire;
+}
+
+template<ndn::encoding::Tag TAG>
+size_t
+State::wireEncode(ndn::EncodingImpl<TAG>& block) const
+{
+  size_t totalLength = 0;
+
+  for (std::vector<ndn::Name>::const_reverse_iterator it = m_content.rbegin();
+    it != m_content.rend(); ++it) {
+    totalLength += it->wireEncode(block);
+  }
+
+  totalLength += block.prependVarNumber(totalLength);
+  totalLength += block.prependVarNumber(tlv::PSyncContent);
+
+  return totalLength;
+}
+
+NDN_CXX_DEFINE_WIRE_ENCODE_INSTANTIATIONS(State);
+
+void
+State::wireDecode(const ndn::Block& wire)
+{
+  if (!wire.hasWire()) {
+    BOOST_THROW_EXCEPTION(ndn::tlv::Error("The supplied block does not contain wire format"));
+  }
+
+  wire.parse();
+  m_wire = wire;
+
+  auto it = m_wire.elements_begin();
+
+  if (it->type() != tlv::PSyncContent) {
+    BOOST_THROW_EXCEPTION(ndn::tlv::Error("Unexpected TLV type when decoding Content: " +
+                                          ndn::to_string(wire.type())));
+  }
+
+  it->parse();
+
+  for (auto val = it->elements_begin(); val != it->elements_end(); ++val) {
+    if (val->type() == ndn::tlv::Name) {
+      m_content.emplace_back(*val);
+    }
+    else {
+      BOOST_THROW_EXCEPTION(ndn::tlv::Error("Expected Name Block, but Block is of a different type: #" +
+                                            ndn::to_string(m_wire.type())));
+    }
+  }
+}
+
+std::ostream&
+operator<<(std::ostream& os, const State& state)
+{
+  std::vector<ndn::Name> content = state.getContent();
+
+  os << "[";
+  std::copy(content.begin(), content.end(), ndn::make_ostream_joiner(os, ", "));
+  os << "]";
+
+  return os;
+}
+
+} // namespace psync