diff --git a/graftlets/rta/requests/getsupernodeinfo.cpp b/graftlets/rta/requests/getsupernodeinfo.cpp
index f3078c7b..53c62e55 100644
--- a/graftlets/rta/requests/getsupernodeinfo.cpp
+++ b/graftlets/rta/requests/getsupernodeinfo.cpp
@@ -69,7 +69,7 @@ Status handleSupernodeInfoRequest(const Router::vars_t &vars, const Input &input
     FullSupernodeList::blockchain_based_list auth_sample_base_list;
 
     uint64_t bbl_block_height = fsl->getBlockchainBasedListMaxBlockNumber();
-    uint64_t auth_sample_base_block_number = fsl->getBlockchainBasedListForAuthSample(bbl_block_height, auth_sample_base_list);
+    uint64_t auth_sample_base_block_number = fsl->getBlockchainBasedListForHeight(bbl_block_height, auth_sample_base_list);
 
     auto is_supernode_available = [&](const std::string& supernode_public_id)
     {
diff --git a/include/rta/fullsupernodelist.h b/include/rta/fullsupernodelist.h
index c0ece09e..f5331c50 100644
--- a/include/rta/fullsupernodelist.h
+++ b/include/rta/fullsupernodelist.h
@@ -194,7 +194,7 @@ class FullSupernodeList
      * \param out_list     - resulting list
      * \return             - block number which was used for base list
      */
-    uint64_t getBlockchainBasedListForAuthSample(uint64_t block_number, blockchain_based_list& list) const;
+    uint64_t getBlockchainBasedListForHeight(uint64_t block_number, blockchain_based_list& list) const;
     
     /*!
      * \brief synchronizeWithCryptonode - synchronize with cryptonode
diff --git a/src/apps/rta-wallet-cli/main.cpp b/src/apps/rta-wallet-cli/main.cpp
index 15c40b96..52576c44 100644
--- a/src/apps/rta-wallet-cli/main.cpp
+++ b/src/apps/rta-wallet-cli/main.cpp
@@ -333,7 +333,25 @@ class Wallet
             abort();
         }
 
-        
+        // test ptx
+        {
+            std::string ptx_blob = tools::wallet2::pending_tx::serialize(m_ptx_v.at(0));
+            tools::wallet2::pending_tx test_ptx;
+            
+            if (!tools::wallet2::pending_tx::deserialize(ptx_blob, test_ptx)) {
+                MERROR("Failed to deserialize ptx");
+                abort();
+            }
+            if (cryptonote::get_transaction_hash(test_ptx.tx)
+                    != tx.hash) {
+                
+                MERROR("original and serialized transactions mismatch: "
+                       << "original hash: " << tx.hash << ", deserialized hash: "
+                       << cryptonote::get_transaction_hash(test_ptx.tx)
+                       << "original tx: " << cryptonote::obj_to_json_str(m_ptx_v.at(0).tx)
+                       << "deserialized tx: " << cryptonote::obj_to_json_str(test_ptx.tx));
+            }
+        }
         
         PayRequest pay_req;
 
diff --git a/src/rta/fullsupernodelist.cpp b/src/rta/fullsupernodelist.cpp
index 528dca01..432823e6 100644
--- a/src/rta/fullsupernodelist.cpp
+++ b/src/rta/fullsupernodelist.cpp
@@ -277,18 +277,18 @@ bool FullSupernodeList::selectSupernodes(size_t items_count, const std::string&
     return true;
 }
 
-uint64_t FullSupernodeList::getBlockchainBasedListForAuthSample(uint64_t block_number, blockchain_based_list& list) const
+uint64_t FullSupernodeList::getBlockchainBasedListForHeight(uint64_t block_height, blockchain_based_list& list) const
 {
     boost::shared_lock<boost::shared_mutex> readerLock(m_access);
 
-    uint64_t blockchain_based_list_height = block_number;
+    uint64_t blockchain_based_list_height = block_height;
 
-    if (block_number == 0) {
-        block_number = this->getBlockchainBasedListMaxBlockNumber();
-        blockchain_based_list_height = block_number - BLOCKCHAIN_BASED_LIST_DELAY_BLOCK_COUNT;
+    if (block_height == 0) {
+        block_height = this->getBlockchainBasedListMaxBlockNumber();
+        blockchain_based_list_height = block_height - BLOCKCHAIN_BASED_LIST_DELAY_BLOCK_COUNT;
     }
 
-    blockchain_based_list_map::const_iterator it = m_blockchain_based_lists.find(block_number);
+    blockchain_based_list_map::const_iterator it = m_blockchain_based_lists.find(block_height);
 
     if (it == m_blockchain_based_lists.end())
         return 0;
@@ -344,7 +344,7 @@ bool FullSupernodeList::buildAuthSample(uint64_t height, const std::string& paym
 
     blockchain_based_list bbl;
 
-    out_auth_block_number = getBlockchainBasedListForAuthSample(height, bbl);
+    out_auth_block_number = getBlockchainBasedListForHeight(height, bbl);
 
     if (!out_auth_block_number)
     {
@@ -359,14 +359,13 @@ bool FullSupernodeList::buildAuthSample(uint64_t height, const std::string& paym
     {
         boost::unique_lock<boost::shared_mutex> writerLock(m_access);
 
-           //seed RNG
- 
+        //  seed RNG
         std::seed_seq seed(reinterpret_cast<const unsigned char*>(payment_id.c_str()),
                            reinterpret_cast<const unsigned char*>(payment_id.c_str() + payment_id.size()));
  
         m_rng.seed(seed);
  
-            //select supernodes for a full supernode list
+        //select supernodes for a full supernode list
 
         MDEBUG("use blockchain based list for height " << out_auth_block_number);
         int t = 1;
diff --git a/src/supernode/requests/debug.cpp b/src/supernode/requests/debug.cpp
index 8d5e4b28..07c4a9f2 100644
--- a/src/supernode/requests/debug.cpp
+++ b/src/supernode/requests/debug.cpp
@@ -61,7 +61,7 @@ Status getSupernodeList(const Router::vars_t& vars, const graft::Input& input,
 
     FullSupernodeList::blockchain_based_list auth_sample_base_list;
 
-    uint64_t auth_sample_base_block_number = fsl->getBlockchainBasedListForAuthSample(resp.result.height, auth_sample_base_list);
+    uint64_t auth_sample_base_block_number = fsl->getBlockchainBasedListForHeight(resp.result.height, auth_sample_base_list);
 
     auto is_supernode_available = [&](const std::string& supernode_public_id)
     {
@@ -248,7 +248,7 @@ Status getBlockchainBasedListImpl(const Router::vars_t& vars, const graft::Input
     switch (mode)
     {
         case BlockchainBasedListMode_ForAuthSample:
-            resp.result.Height = fsl->getBlockchainBasedListForAuthSample(block_height, bbl);
+            resp.result.Height = fsl->getBlockchainBasedListForHeight(block_height, bbl);
 
             if (!resp.result.Height)
             {