diff --git a/src/currency_core/blockchain_storage.cpp b/src/currency_core/blockchain_storage.cpp
index 0c4ed2a2..499b114e 100644
--- a/src/currency_core/blockchain_storage.cpp
+++ b/src/currency_core/blockchain_storage.cpp
@@ -7508,11 +7508,11 @@ bool blockchain_storage::add_new_block(const block& bl, block_verification_conte
   }
 }
 //------------------------------------------------------------------
-bool blockchain_storage::truncate_blockchain(uint64_t to_height)
+bool blockchain_storage::truncate_blockchain(uint64_t to_blockchain_size)
 {
   m_db.begin_transaction();
-  uint64_t inital_height = get_current_blockchain_size();
-  while (get_current_blockchain_size() > to_height)
+  uint64_t inital_blockchain_size = get_current_blockchain_size();
+  while (get_current_blockchain_size() > to_blockchain_size)
   {
     transactions_map ot;
     pop_block_from_blockchain(ot);
@@ -7521,7 +7521,7 @@ bool blockchain_storage::truncate_blockchain(uint64_t to_height)
   m_alternative_chains.clear();
   m_altblocks_keyimages.clear();
   m_alternative_chains_txs.clear();
-  LOG_PRINT_MAGENTA("Blockchain truncated from " << inital_height << " to " << get_current_blockchain_size(), LOG_LEVEL_0);
+  LOG_PRINT_MAGENTA("Blockchain truncated from size " << inital_blockchain_size << " to size " << get_current_blockchain_size() << ". Alt blocks cleared.", LOG_LEVEL_0);
   m_db.commit_transaction();
   return true;
 }
diff --git a/src/currency_core/blockchain_storage.h b/src/currency_core/blockchain_storage.h
index 31211aed..aa423cc3 100644
--- a/src/currency_core/blockchain_storage.h
+++ b/src/currency_core/blockchain_storage.h
@@ -215,7 +215,7 @@ namespace currency
     bool clear();
     bool reset_and_set_genesis_block(const block& b);
     //debug function
-    bool truncate_blockchain(uint64_t to_height);
+    bool truncate_blockchain(uint64_t to_blockchain_size);
     //------------- readers members -----------------
     bool pre_validate_relayed_block(block& b, block_verification_context& bvc, const crypto::hash& id)const ;
     //bool push_new_block();
diff --git a/src/currency_core/core_runtime_config.h b/src/currency_core/core_runtime_config.h
index 0ed52890..92bc78bd 100644
--- a/src/currency_core/core_runtime_config.h
+++ b/src/currency_core/core_runtime_config.h
@@ -55,6 +55,12 @@ namespace currency
       return epee::string_tools::num_to_string_fast(m_height_the_hardfork_n_active_after[hardfork_id]);
     }
 
+    uint64_t get_height_the_hardfork_active_after(size_t hardfork_id) const
+    {
+      CHECK_AND_ASSERT_THROW_MES(hardfork_id < m_total_count, "invalid hardfork id: " << hardfork_id);
+      return m_height_the_hardfork_n_active_after[hardfork_id];
+    }
+
     size_t get_the_most_recent_hardfork_id_for_height(uint64_t height) const
     {
       for(size_t hid = m_total_count - 1; hid != 0; --hid) // 0 is not including