diff --git a/libraries/chain/db_block.cpp b/libraries/chain/db_block.cpp
index f7ecd885..9d8cee4f 100644
--- a/libraries/chain/db_block.cpp
+++ b/libraries/chain/db_block.cpp
@@ -549,17 +549,19 @@ void database::notify_changed_objects()
    if( _undo_db.enabled() ) 
    {
       const auto& head_undo = _undo_db.head();
+
+      vector<object_id_type> new_ids;  new_ids.reserve(head_undo.new_ids.size());
+      for( const auto& item : head_undo.new_ids ) new_ids.push_back(item);
+
       vector<object_id_type> changed_ids;  changed_ids.reserve(head_undo.old_values.size());
       for( const auto& item : head_undo.old_values ) changed_ids.push_back(item.first);
-      for( const auto& item : head_undo.new_ids ) changed_ids.push_back(item);
-      vector<const object*> removed;
-      removed.reserve( head_undo.removed.size() );
-      for( const auto& item : head_undo.removed )
-      {
-         changed_ids.push_back( item.first );
-         removed.emplace_back( item.second.get() );
-      }
+
+      vector<const object*> removed; removed.reserve( head_undo.removed.size() );
+      for( const auto& item : head_undo.removed ) removed.emplace_back( item.second.get() );
+
+      new_objects(new_ids);
       changed_objects(changed_ids);
+      removed_objects(removed);
    }
 } FC_CAPTURE_AND_RETHROW() }
 
diff --git a/libraries/chain/include/graphene/chain/database.hpp b/libraries/chain/include/graphene/chain/database.hpp
index 1b721253..47fd63b9 100644
--- a/libraries/chain/include/graphene/chain/database.hpp
+++ b/libraries/chain/include/graphene/chain/database.hpp
@@ -189,6 +189,12 @@ namespace graphene { namespace chain {
           */
          fc::signal<void(const signed_transaction&)>     on_pending_transaction;
 
+         /**
+          *  Emitted After a block has been applied and committed.  The callback
+          *  should not yield and should execute quickly.
+          */
+         fc::signal<void(const vector<object_id_type>&)> new_objects;
+
          /**
           *  Emitted After a block has been applied and committed.  The callback
           *  should not yield and should execute quickly.