diff --git a/libraries/chain/db_init.cpp b/libraries/chain/db_init.cpp
index 208a48a6..40844ee2 100644
--- a/libraries/chain/db_init.cpp
+++ b/libraries/chain/db_init.cpp
@@ -52,6 +52,7 @@
 #include <graphene/chain/info_for_vout_object.hpp>
 #include <graphene/chain/bitcoin_address_object.hpp>
 #include <graphene/chain/primary_wallet_vout_object.hpp>
+#include <graphene/chain/sidechain_proposal_object.hpp>
 
 
 #include <graphene/chain/sport_object.hpp>
@@ -313,6 +314,7 @@ void database::initialize_indexes()
    add_index< primary_index<info_for_vout_index                           > >();
    add_index< primary_index<bitcoin_address_index                         > >();
    add_index< primary_index<primary_wallet_vout_index                     > >();
+   add_index< primary_index<sidechain_proposal_index                      > >();
 }
 
 void database::init_genesis(const genesis_state_type& genesis_state)
diff --git a/libraries/chain/include/graphene/chain/protocol/types.hpp b/libraries/chain/include/graphene/chain/protocol/types.hpp
index dbd8bc67..b01e9eae 100644
--- a/libraries/chain/include/graphene/chain/protocol/types.hpp
+++ b/libraries/chain/include/graphene/chain/protocol/types.hpp
@@ -148,6 +148,7 @@ namespace graphene { namespace chain {
       info_for_vout_object_type,
       bitcoin_address_object_type,
       primary_wallet_vout_object_type,
+      sidechain_proposal_object_type,
       OBJECT_TYPE_COUNT ///< Sentry value which contains the number of different object types
    };
 
@@ -208,6 +209,7 @@ namespace graphene { namespace chain {
    class info_for_vout_object;
    class bitcoin_address_object;
    class primary_wallet_vout_object;
+   class sidechain_proposal_object;
 
    typedef object_id< protocol_ids, account_object_type,            account_object>               account_id_type;
    typedef object_id< protocol_ids, asset_object_type,              asset_object>                 asset_id_type;
@@ -237,6 +239,7 @@ namespace graphene { namespace chain {
    typedef object_id< protocol_ids, info_for_vout_object_type,      info_for_vout_object>         info_for_vout_id_type;
    typedef object_id< protocol_ids, bitcoin_address_object_type,    bitcoin_address_object>       bitcoin_address_id_type;
    typedef object_id< protocol_ids, primary_wallet_vout_object_type,primary_wallet_vout_object>   primary_wallet_vout_id_type;
+   typedef object_id< protocol_ids, sidechain_proposal_object_type, sidechain_proposal_object>    sidechain_proposal_id_type;
 
    // implementation types
    class global_property_object;
@@ -414,6 +417,7 @@ FC_REFLECT_ENUM( graphene::chain::object_type,
                  (info_for_vout_object_type)
                  (bitcoin_address_object_type)
                  (primary_wallet_vout_object_type)
+                 (sidechain_proposal_object_type)
                  (OBJECT_TYPE_COUNT)
                )
 FC_REFLECT_ENUM( graphene::chain::impl_object_type,
@@ -468,6 +472,7 @@ FC_REFLECT_TYPENAME( graphene::chain::tournament_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::info_for_vout_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::bitcoin_address_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::primary_wallet_vout_id_type )
+FC_REFLECT_TYPENAME( graphene::chain::sidechain_proposal_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::global_property_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::dynamic_global_property_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::asset_dynamic_data_id_type )
diff --git a/libraries/chain/include/graphene/chain/sidechain_proposal_object.hpp b/libraries/chain/include/graphene/chain/sidechain_proposal_object.hpp
new file mode 100644
index 00000000..456e941e
--- /dev/null
+++ b/libraries/chain/include/graphene/chain/sidechain_proposal_object.hpp
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <graphene/db/generic_index.hpp>
+#include <graphene/chain/protocol/types.hpp>
+#include <sidechain/types.hpp>
+
+namespace graphene { namespace chain {
+
+class sidechain_proposal_object : public abstract_object<sidechain_proposal_object>
+{
+   public:
+      static const uint8_t space_id = protocol_ids;
+      static const uint8_t type_id  = sidechain_proposal_object_type;
+
+      sidechain_proposal_id_type get_id()const { return id; }
+
+      proposal_id_type          proposal_id;
+      sidechain::sidechain_proposal_type   proposal_type;
+};
+
+struct by_proposal;
+struct by_type;
+typedef boost::multi_index_container<
+   sidechain_proposal_object,
+   indexed_by<
+      ordered_unique< tag< by_id >, member< object, object_id_type, &object::id > >,
+      ordered_unique< tag< by_proposal >, member< sidechain_proposal_object, proposal_id_type, &sidechain_proposal_object::proposal_id > >,
+      ordered_non_unique< tag< by_type >, member< sidechain_proposal_object, sidechain::sidechain_proposal_type, &sidechain_proposal_object::proposal_type > >
+   >
+> sidechain_multi_index_container;
+typedef generic_index<sidechain_proposal_object, sidechain_multi_index_container> sidechain_proposal_index;
+
+} } // graphene::chain
+
+FC_REFLECT_DERIVED( graphene::chain::sidechain_proposal_object, (graphene::chain::object), (proposal_id)(proposal_type) )
diff --git a/libraries/sidechain/include/sidechain/types.hpp b/libraries/sidechain/include/sidechain/types.hpp
index 16f0d8b0..501c2bff 100644
--- a/libraries/sidechain/include/sidechain/types.hpp
+++ b/libraries/sidechain/include/sidechain/types.hpp
@@ -25,6 +25,14 @@ enum class payment_type
    P2SH_WSH
 };
 
+enum class sidechain_proposal_type
+{
+   ISSUE_PBTC,
+   SEND_BTC_TRANSACTION,
+   WITHDRAW_PBTC,
+   RETURN_PBTC_BACK
+};
+
 struct prev_out
 {
    std::string hash_tx;
@@ -35,4 +43,5 @@ struct prev_out
 }
 
 FC_REFLECT_ENUM( sidechain::payment_type, (NULLDATA)(P2PK)(P2PKH)(P2SH)(P2WPKH)(P2WSH)(P2SH_WPKH)(P2SH_WSH) );
+FC_REFLECT_ENUM( sidechain::sidechain_proposal_type, (ISSUE_PBTC)(SEND_BTC_TRANSACTION)(WITHDRAW_PBTC)(RETURN_PBTC_BACK) );
 FC_REFLECT( sidechain::prev_out, (hash_tx)(n_vout)(amount) );