diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3e0bfb59c..57ff28bfc 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -102,6 +102,7 @@ monero_add_library(version ${CMAKE_BINARY_DIR}/version.cpp)
 add_subdirectory(common)
 add_subdirectory(crypto)
 add_subdirectory(ringct)
+add_subdirectory(checkpoints)
 add_subdirectory(cryptonote_basic)
 add_subdirectory(cryptonote_core)
 if(NOT IOS)
diff --git a/src/cryptonote_basic/checkpoints.cpp b/src/checkpoints/checkpoints.cpp
similarity index 98%
rename from src/cryptonote_basic/checkpoints.cpp
rename to src/checkpoints/checkpoints.cpp
index 98e509561..60be7f7ec 100644
--- a/src/cryptonote_basic/checkpoints.cpp
+++ b/src/checkpoints/checkpoints.cpp
@@ -36,6 +36,7 @@ using namespace epee;
 
 #include "common/dns_utils.h"
 #include "include_base_utils.h"
+#include "storages/portable_storage_template_helper.h" // epee json include
 #include <sstream>
 #include <random>
 
@@ -51,7 +52,7 @@ namespace cryptonote
   //---------------------------------------------------------------------------
   bool checkpoints::add_checkpoint(uint64_t height, const std::string& hash_str)
   {
-    crypto::hash h = null_hash;
+    crypto::hash h = crypto::null_hash;
     bool r = epee::string_tools::parse_tpod_from_hex_string(hash_str, h);
     CHECK_AND_ASSERT_MES(r, false, "Failed to parse checkpoint hash string into binary representation!");
 
diff --git a/src/cryptonote_basic/checkpoints.h b/src/checkpoints/checkpoints.h
similarity index 98%
rename from src/cryptonote_basic/checkpoints.h
rename to src/checkpoints/checkpoints.h
index 3a74d8a69..72eb232d7 100644
--- a/src/cryptonote_basic/checkpoints.h
+++ b/src/checkpoints/checkpoints.h
@@ -31,9 +31,9 @@
 #pragma once
 #include <map>
 #include <vector>
-#include "cryptonote_basic_impl.h"
 #include "misc_log_ex.h"
-#include "storages/portable_storage_template_helper.h" // epee json include
+#include "crypto/hash.h"
+#include "serialization/keyvalue_serialization.h"
 
 #define ADD_CHECKPOINT(h, hash)  CHECK_AND_ASSERT(add_checkpoint(h,  hash), false);
 #define JSON_HASH_FILE_NAME "checkpoints.json"
diff --git a/src/crypto/crypto.h b/src/crypto/crypto.h
index e99b6651f..94f924296 100644
--- a/src/crypto/crypto.h
+++ b/src/crypto/crypto.h
@@ -31,12 +31,16 @@
 #pragma once
 
 #include <cstddef>
+#include <iostream>
 #include <boost/thread/mutex.hpp>
 #include <boost/thread/lock_guard.hpp>
+#include <boost/utility/value_init.hpp>
 #include <vector>
 
 #include "common/pod-class.h"
 #include "generic-ops.h"
+#include "hex.h"
+#include "span.h"
 #include "hash.h"
 
 namespace crypto {
@@ -248,6 +252,24 @@ namespace crypto {
     const signature *sig) {
     return check_ring_signature(prefix_hash, image, pubs.data(), pubs.size(), sig);
   }
+
+  inline std::ostream &operator <<(std::ostream &o, const crypto::public_key &v) {
+    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
+  }
+  inline std::ostream &operator <<(std::ostream &o, const crypto::secret_key &v) {
+    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
+  }
+  inline std::ostream &operator <<(std::ostream &o, const crypto::key_derivation &v) {
+    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
+  }
+  inline std::ostream &operator <<(std::ostream &o, const crypto::key_image &v) {
+    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
+  }
+  inline std::ostream &operator <<(std::ostream &o, const crypto::signature &v) {
+    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
+  }
+
+  const static crypto::public_key null_pkey = boost::value_initialized<crypto::public_key>();
 }
 
 CRYPTO_MAKE_HASHABLE(public_key)
diff --git a/src/crypto/hash.h b/src/crypto/hash.h
index 22991e513..610b4502f 100644
--- a/src/crypto/hash.h
+++ b/src/crypto/hash.h
@@ -31,9 +31,13 @@
 #pragma once
 
 #include <stddef.h>
+#include <iostream>
+#include <boost/utility/value_init.hpp>
 
 #include "common/pod-class.h"
 #include "generic-ops.h"
+#include "hex.h"
+#include "span.h"
 
 namespace crypto {
 
@@ -75,6 +79,15 @@ namespace crypto {
     tree_hash(reinterpret_cast<const char (*)[HASH_SIZE]>(hashes), count, reinterpret_cast<char *>(&root_hash));
   }
 
+  inline std::ostream &operator <<(std::ostream &o, const crypto::hash &v) {
+    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
+  }
+  inline std::ostream &operator <<(std::ostream &o, const crypto::hash8 &v) {
+    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
+  }
+
+  const static crypto::hash null_hash = boost::value_initialized<crypto::hash>();
+  const static crypto::hash8 null_hash8 = boost::value_initialized<crypto::hash8>();
 }
 
 CRYPTO_MAKE_HASHABLE(hash)
diff --git a/src/cryptonote_basic/CMakeLists.txt b/src/cryptonote_basic/CMakeLists.txt
index 1503b277e..94da3bec8 100644
--- a/src/cryptonote_basic/CMakeLists.txt
+++ b/src/cryptonote_basic/CMakeLists.txt
@@ -34,7 +34,6 @@ endif()
 
 set(cryptonote_basic_sources
   account.cpp
-  checkpoints.cpp
   cryptonote_basic_impl.cpp
   cryptonote_format_utils.cpp
   difficulty.cpp
@@ -46,7 +45,6 @@ set(cryptonote_basic_headers)
 set(cryptonote_basic_private_headers
   account.h
   account_boost_serialization.h
-  checkpoints.h
   connection_context.h
   cryptonote_basic.h
   cryptonote_basic_impl.h
@@ -69,6 +67,7 @@ target_link_libraries(cryptonote_basic
   PUBLIC
     common
     cncrypto
+    checkpoints
     ${Boost_DATE_TIME_LIBRARY}
     ${Boost_PROGRAM_OPTIONS_LIBRARY}
     ${Boost_SERIALIZATION_LIBRARY}
diff --git a/src/cryptonote_basic/connection_context.h b/src/cryptonote_basic/connection_context.h
index 3283543e2..da4b6512e 100644
--- a/src/cryptonote_basic/connection_context.h
+++ b/src/cryptonote_basic/connection_context.h
@@ -40,7 +40,7 @@ namespace cryptonote
   struct cryptonote_connection_context: public epee::net_utils::connection_context_base
   {
     cryptonote_connection_context(): m_state(state_before_handshake), m_remote_blockchain_height(0), m_last_response_height(0),
-        m_last_known_hash(cryptonote::null_hash) {}
+        m_last_known_hash(crypto::null_hash) {}
 
     enum state
     {
diff --git a/src/cryptonote_basic/cryptonote_basic.h b/src/cryptonote_basic/cryptonote_basic.h
index c4adf1fcb..eb03d33b9 100644
--- a/src/cryptonote_basic/cryptonote_basic.h
+++ b/src/cryptonote_basic/cryptonote_basic.h
@@ -53,11 +53,6 @@
 
 namespace cryptonote
 {
-
-  const static crypto::hash null_hash = AUTO_VAL_INIT(null_hash);
-  const static crypto::hash8 null_hash8 = AUTO_VAL_INIT(null_hash8);
-  const static crypto::public_key null_pkey = AUTO_VAL_INIT(null_pkey);
-
   typedef std::vector<crypto::signature> ring_signature;
 
 
diff --git a/src/cryptonote_basic/cryptonote_basic_impl.h b/src/cryptonote_basic/cryptonote_basic_impl.h
index 7a2259b32..5523846d6 100644
--- a/src/cryptonote_basic/cryptonote_basic_impl.h
+++ b/src/cryptonote_basic/cryptonote_basic_impl.h
@@ -33,8 +33,6 @@
 #include "cryptonote_basic.h"
 #include "crypto/crypto.h"
 #include "crypto/hash.h"
-#include "hex.h"
-#include "span.h"
 
 
 namespace cryptonote {
@@ -136,26 +134,3 @@ namespace cryptonote {
 
 bool parse_hash256(const std::string str_hash, crypto::hash& hash);
 
-namespace crypto {
-  inline std::ostream &operator <<(std::ostream &o, const crypto::public_key &v) {
-    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
-  }
-  inline std::ostream &operator <<(std::ostream &o, const crypto::secret_key &v) {
-    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
-  }
-  inline std::ostream &operator <<(std::ostream &o, const crypto::key_derivation &v) {
-    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
-  }
-  inline std::ostream &operator <<(std::ostream &o, const crypto::key_image &v) {
-    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
-  }
-  inline std::ostream &operator <<(std::ostream &o, const crypto::signature &v) {
-    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
-  }
-  inline std::ostream &operator <<(std::ostream &o, const crypto::hash &v) {
-    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
-  }
-  inline std::ostream &operator <<(std::ostream &o, const crypto::hash8 &v) {
-    epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
-  }
-}
diff --git a/src/cryptonote_basic/cryptonote_format_utils.cpp b/src/cryptonote_basic/cryptonote_format_utils.cpp
index e73f5d778..fc979f288 100644
--- a/src/cryptonote_basic/cryptonote_format_utils.cpp
+++ b/src/cryptonote_basic/cryptonote_format_utils.cpp
@@ -632,7 +632,7 @@ namespace cryptonote
     // prunable rct
     if (t.rct_signatures.type == rct::RCTTypeNull)
     {
-      hashes[2] = cryptonote::null_hash;
+      hashes[2] = crypto::null_hash;
     }
     else
     {
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index e1cc7361b..0b09d503c 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -49,7 +49,6 @@
 #include "common/boost_serialization_helper.h"
 #include "warnings.h"
 #include "crypto/hash.h"
-#include "cryptonote_basic/checkpoints.h"
 #include "cryptonote_core.h"
 #include "ringct/rctSigs.h"
 #include "common/perf_timer.h"
diff --git a/src/cryptonote_core/blockchain.h b/src/cryptonote_core/blockchain.h
index e2da535cd..00b40d0ad 100644
--- a/src/cryptonote_core/blockchain.h
+++ b/src/cryptonote_core/blockchain.h
@@ -51,7 +51,7 @@
 #include "cryptonote_tx_utils.h"
 #include "cryptonote_basic/verification_context.h"
 #include "crypto/hash.h"
-#include "cryptonote_basic/checkpoints.h"
+#include "checkpoints/checkpoints.h"
 #include "cryptonote_basic/hardfork.h"
 #include "blockchain_db/blockchain_db.h"
 
diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp
index 7c6dc7153..2de084d7e 100644
--- a/src/cryptonote_core/cryptonote_core.cpp
+++ b/src/cryptonote_core/cryptonote_core.cpp
@@ -45,7 +45,7 @@ using namespace epee;
 #include "misc_language.h"
 #include <csignal>
 #include <p2p/net_node.h>
-#include "cryptonote_basic/checkpoints.h"
+#include "checkpoints/checkpoints.h"
 #include "ringct/rctTypes.h"
 #include "blockchain_db/blockchain_db.h"
 #include "ringct/rctSigs.h"
diff --git a/src/cryptonote_protocol/block_queue.cpp b/src/cryptonote_protocol/block_queue.cpp
index 02a8e3ec2..64dd1fb50 100644
--- a/src/cryptonote_protocol/block_queue.cpp
+++ b/src/cryptonote_protocol/block_queue.cpp
@@ -340,7 +340,7 @@ size_t block_queue::get_num_filled_spans() const
 crypto::hash block_queue::get_last_known_hash(const boost::uuids::uuid &connection_id) const
 {
   boost::unique_lock<boost::recursive_mutex> lock(mutex);
-  crypto::hash hash = cryptonote::null_hash;
+  crypto::hash hash = crypto::null_hash;
   uint64_t highest_height = 0;
   for (const auto &span: blocks)
   {
diff --git a/src/cryptonote_protocol/cryptonote_protocol_handler.inl b/src/cryptonote_protocol/cryptonote_protocol_handler.inl
index 22cfb2299..58e5fc380 100644
--- a/src/cryptonote_protocol/cryptonote_protocol_handler.inl
+++ b/src/cryptonote_protocol/cryptonote_protocol_handler.inl
@@ -1484,7 +1484,7 @@ skip:
       if (!start_from_current_chain)
       {
         // we'll want to start off from where we are on that peer, which may not be added yet
-        if (context.m_last_known_hash != cryptonote::null_hash && r.block_ids.front() != context.m_last_known_hash)
+        if (context.m_last_known_hash != crypto::null_hash && r.block_ids.front() != context.m_last_known_hash)
           r.block_ids.push_front(context.m_last_known_hash);
       }
 
diff --git a/src/rpc/daemon_handler.cpp b/src/rpc/daemon_handler.cpp
index 53eeb5e76..9a6c61b10 100644
--- a/src/rpc/daemon_handler.cpp
+++ b/src/rpc/daemon_handler.cpp
@@ -542,7 +542,7 @@ namespace rpc
   {
     if (m_core.get_current_blockchain_height() <= req.height)
     {
-      res.hash = cryptonote::null_hash;
+      res.hash = crypto::null_hash;
       res.status = Message::STATUS_FAILED;
       res.error_details = "height given is higher than current chain height";
       return;
diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp
index d625634c8..937403c66 100644
--- a/src/simplewallet/simplewallet.cpp
+++ b/src/simplewallet/simplewallet.cpp
@@ -3278,7 +3278,7 @@ bool simple_wallet::accept_loaded_tx(const std::function<size_t()> get_num_txes,
 
     std::vector<tx_extra_field> tx_extra_fields;
     bool has_encrypted_payment_id = false;
-    crypto::hash8 payment_id8 = cryptonote::null_hash8;
+    crypto::hash8 payment_id8 = crypto::null_hash8;
     if (cryptonote::parse_tx_extra(cd.extra, tx_extra_fields))
     {
       tx_extra_nonce extra_nonce;
diff --git a/src/wallet/api/address_book.cpp b/src/wallet/api/address_book.cpp
index a955cb166..9605047b7 100644
--- a/src/wallet/api/address_book.cpp
+++ b/src/wallet/api/address_book.cpp
@@ -57,7 +57,7 @@ bool AddressBookImpl::addRow(const std::string &dst_addr , const std::string &pa
     return false;
   }
 
-  crypto::hash payment_id = cryptonote::null_hash;
+  crypto::hash payment_id = crypto::null_hash;
   bool has_long_pid = (payment_id_str.empty())? false : tools::wallet2::parse_long_payment_id(payment_id_str, payment_id); 
     
   // Short payment id provided
@@ -106,7 +106,7 @@ void AddressBookImpl::refresh()
   for (size_t i = 0; i < rows.size(); ++i) {
     tools::wallet2::address_book_row * row = &rows.at(i);
     
-    std::string payment_id = (row->m_payment_id == cryptonote::null_hash)? "" : epee::string_tools::pod_to_hex(row->m_payment_id);
+    std::string payment_id = (row->m_payment_id == crypto::null_hash)? "" : epee::string_tools::pod_to_hex(row->m_payment_id);
     std::string address = cryptonote::get_account_address_as_str(m_wallet->m_wallet->testnet(),row->m_address);
     // convert the zero padded short payment id to integrated address
     if (payment_id.length() > 16 && payment_id.substr(16).find_first_not_of('0') == std::string::npos) {
diff --git a/src/wallet/api/unsigned_transaction.cpp b/src/wallet/api/unsigned_transaction.cpp
index 961bd772a..5105278e4 100644
--- a/src/wallet/api/unsigned_transaction.cpp
+++ b/src/wallet/api/unsigned_transaction.cpp
@@ -230,13 +230,13 @@ std::vector<std::string> UnsignedTransactionImpl::paymentId() const
 {
     std::vector<string> result;
     for (const auto &utx: m_unsigned_tx_set.txes) {     
-        crypto::hash payment_id = cryptonote::null_hash;
+        crypto::hash payment_id = crypto::null_hash;
         cryptonote::tx_extra_nonce extra_nonce;
         std::vector<cryptonote::tx_extra_field> tx_extra_fields;
         cryptonote::parse_tx_extra(utx.extra, tx_extra_fields);
         if (cryptonote::find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
         {
-          crypto::hash8 payment_id8 = cryptonote::null_hash8;
+          crypto::hash8 payment_id8 = crypto::null_hash8;
           if(cryptonote::get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
           {
               // We can't decrypt short pid without recipient key.
@@ -244,10 +244,10 @@ std::vector<std::string> UnsignedTransactionImpl::paymentId() const
           }
           else if (!cryptonote::get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
           {
-            payment_id = cryptonote::null_hash;
+            payment_id = crypto::null_hash;
           }      
         }
-        if(payment_id != cryptonote::null_hash)
+        if(payment_id != crypto::null_hash)
             result.push_back(epee::string_tools::pod_to_hex(payment_id));
         else
             result.push_back("");
diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 416fa7025..a8572902c 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -3058,7 +3058,7 @@ crypto::hash wallet2::get_payment_id(const pending_tx &ptx) const
 {
   std::vector<tx_extra_field> tx_extra_fields;
   if(!parse_tx_extra(ptx.tx.extra, tx_extra_fields))
-    return cryptonote::null_hash;
+    return crypto::null_hash;
   tx_extra_nonce extra_nonce;
   crypto::hash payment_id = null_hash;
   if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
@@ -3073,7 +3073,7 @@ crypto::hash wallet2::get_payment_id(const pending_tx &ptx) const
     }
     else if (!get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
     {
-      payment_id = cryptonote::null_hash;
+      payment_id = crypto::null_hash;
     }
   }
   return payment_id;
@@ -3122,7 +3122,7 @@ void wallet2::commit_tx(pending_tx& ptx)
   }
 
   txid = get_transaction_hash(ptx.tx);
-  crypto::hash payment_id = cryptonote::null_hash;
+  crypto::hash payment_id = crypto::null_hash;
   std::vector<cryptonote::tx_destination_entry> dests;
   uint64_t amount_in = 0;
   if (store_tx_info())
@@ -5142,7 +5142,7 @@ crypto::public_key wallet2::get_tx_pub_key_from_received_outs(const tools::walle
   // we found no key yielding an output
   THROW_WALLET_EXCEPTION_IF(true, error::wallet_internal_error,
       "Public key yielding at least one output wasn't found in the transaction extra");
-  return cryptonote::null_pkey;
+  return crypto::null_pkey;
 }
 
 bool wallet2::export_key_images(const std::string filename)
diff --git a/src/wallet/wallet2.h b/src/wallet/wallet2.h
index 680ae025a..cf8dd171c 100644
--- a/src/wallet/wallet2.h
+++ b/src/wallet/wallet2.h
@@ -216,7 +216,7 @@ namespace tools
       uint64_t m_timestamp;
       uint64_t m_unlock_time;
 
-      confirmed_transfer_details(): m_amount_in(0), m_amount_out(0), m_change((uint64_t)-1), m_block_height(0), m_payment_id(cryptonote::null_hash), m_timestamp(0), m_unlock_time(0) {}
+      confirmed_transfer_details(): m_amount_in(0), m_amount_out(0), m_change((uint64_t)-1), m_block_height(0), m_payment_id(crypto::null_hash), m_timestamp(0), m_unlock_time(0) {}
       confirmed_transfer_details(const unconfirmed_transfer_details &utd, uint64_t height):
         m_amount_in(utd.m_amount_in), m_amount_out(utd.m_amount_out), m_change(utd.m_change), m_block_height(height), m_dests(utd.m_dests), m_payment_id(utd.m_payment_id), m_timestamp(utd.m_timestamp), m_unlock_time(utd.m_tx.unlock_time) {}
     };
diff --git a/src/wallet/wallet_rpc_server.cpp b/src/wallet/wallet_rpc_server.cpp
index cb35482bd..46b092376 100644
--- a/src/wallet/wallet_rpc_server.cpp
+++ b/src/wallet/wallet_rpc_server.cpp
@@ -362,7 +362,7 @@ namespace tools
   //------------------------------------------------------------------------------------------------------------------------------
   bool wallet_rpc_server::validate_transfer(const std::list<wallet_rpc::transfer_destination> destinations, std::string payment_id, std::vector<cryptonote::tx_destination_entry>& dsts, std::vector<uint8_t>& extra, epee::json_rpc::error& er)
   {
-    crypto::hash8 integrated_payment_id = cryptonote::null_hash8;
+    crypto::hash8 integrated_payment_id = crypto::null_hash8;
     std::string extra_nonce;
     for (auto it = destinations.begin(); it != destinations.end(); it++)
     {
@@ -395,7 +395,7 @@ namespace tools
 
       if (has_payment_id)
       {
-        if (!payment_id.empty() || integrated_payment_id != cryptonote::null_hash8)
+        if (!payment_id.empty() || integrated_payment_id != crypto::null_hash8)
         {
           er.code = WALLET_RPC_ERROR_CODE_WRONG_PAYMENT_ID;
           er.message = "A single payment id is allowed per transaction";
@@ -1485,7 +1485,7 @@ namespace tools
     cryptonote::account_public_address address;
     bool has_payment_id;
     crypto::hash8 payment_id8;
-    crypto::hash payment_id = cryptonote::null_hash;
+    crypto::hash payment_id = crypto::null_hash;
     er.message = "";
     if(!get_account_address_from_str_or_url(address, has_payment_id, payment_id8, m_wallet->testnet(), req.address,
       [&er](const std::string &url, const std::vector<std::string> &addresses, bool dnssec_valid)->std::string {
diff --git a/tests/core_proxy/core_proxy.cpp b/tests/core_proxy/core_proxy.cpp
index aea810a11..a0be3db96 100644
--- a/tests/core_proxy/core_proxy.cpp
+++ b/tests/core_proxy/core_proxy.cpp
@@ -255,7 +255,7 @@ void tests::proxy_core::build_short_history(std::list<crypto::hash> &m_history,
         m_history.push_front(cit->first);
 
         size_t n = 1 << m_history.size();
-        while (m_hash2blkidx.end() != cit && cryptonote::null_hash != cit->second.blk.prev_id && n > 0) {
+        while (m_hash2blkidx.end() != cit && crypto::null_hash != cit->second.blk.prev_id && n > 0) {
             n--;
             cit = m_hash2blkidx.find(cit->second.blk.prev_id);
         }
@@ -265,7 +265,7 @@ void tests::proxy_core::build_short_history(std::list<crypto::hash> &m_history,
 bool tests::proxy_core::add_block(const crypto::hash &_id, const crypto::hash &_longhash, const cryptonote::block &_blk, const cryptonote::blobdata &_blob) {
     size_t height = 0;
 
-    if (cryptonote::null_hash != _blk.prev_id) {
+    if (crypto::null_hash != _blk.prev_id) {
         std::unordered_map<crypto::hash, tests::block_index>::const_iterator cit = m_hash2blkidx.find(_blk.prev_id);
         if (m_hash2blkidx.end() == cit) {
             cerr << "ERROR: can't find previous block with id \"" << _blk.prev_id << "\"" << endl;
diff --git a/tests/core_proxy/core_proxy.h b/tests/core_proxy/core_proxy.h
index 09ed35b1b..cc35be618 100644
--- a/tests/core_proxy/core_proxy.h
+++ b/tests/core_proxy/core_proxy.h
@@ -46,7 +46,7 @@ namespace tests
       cryptonote::blobdata blob;
       std::list<cryptonote::transaction> txes;
 
-      block_index() : height(0), id(cryptonote::null_hash), longhash(cryptonote::null_hash) { }
+      block_index() : height(0), id(crypto::null_hash), longhash(crypto::null_hash) { }
       block_index(size_t _height, const crypto::hash &_id, const crypto::hash &_longhash, const cryptonote::block &_blk, const cryptonote::blobdata &_blob, const std::list<cryptonote::transaction> &_txes)
           : height(_height), id(_id), longhash(_longhash), blk(_blk), blob(_blob), txes(_txes) { }
   };
diff --git a/tests/core_tests/rct.cpp b/tests/core_tests/rct.cpp
index 1bdd48fa1..b546e4407 100644
--- a/tests/core_tests/rct.cpp
+++ b/tests/core_tests/rct.cpp
@@ -486,7 +486,7 @@ bool gen_rct_tx_pre_rct_altered_extra::generate(std::vector<test_event_entry>& e
   const uint64_t amount_paid = 10000;
   bool failed = false;
   return generate_with(events, out_idx, mixin, amount_paid, false,
-    NULL, [&failed](transaction &tx) {std::string extra_nonce; crypto::hash pid = cryptonote::null_hash; set_payment_id_to_tx_extra_nonce(extra_nonce, pid); if (!add_extra_nonce_to_tx_extra(tx.extra, extra_nonce)) failed = true; }) && !failed;
+    NULL, [&failed](transaction &tx) {std::string extra_nonce; crypto::hash pid = crypto::null_hash; set_payment_id_to_tx_extra_nonce(extra_nonce, pid); if (!add_extra_nonce_to_tx_extra(tx.extra, extra_nonce)) failed = true; }) && !failed;
 }
 
 bool gen_rct_tx_rct_altered_extra::generate(std::vector<test_event_entry>& events) const
@@ -496,6 +496,6 @@ bool gen_rct_tx_rct_altered_extra::generate(std::vector<test_event_entry>& event
   const uint64_t amount_paid = 10000;
   bool failed = false;
   return generate_with(events, out_idx, mixin, amount_paid, false,
-    NULL, [&failed](transaction &tx) {std::string extra_nonce; crypto::hash pid = cryptonote::null_hash; set_payment_id_to_tx_extra_nonce(extra_nonce, pid); if (!add_extra_nonce_to_tx_extra(tx.extra, extra_nonce)) failed = true; }) && !failed;
+    NULL, [&failed](transaction &tx) {std::string extra_nonce; crypto::hash pid = crypto::null_hash; set_payment_id_to_tx_extra_nonce(extra_nonce, pid); if (!add_extra_nonce_to_tx_extra(tx.extra, extra_nonce)) failed = true; }) && !failed;
 }
 
diff --git a/tests/unit_tests/ban.cpp b/tests/unit_tests/ban.cpp
index 7d4daafb3..b8d57452e 100644
--- a/tests/unit_tests/ban.cpp
+++ b/tests/unit_tests/ban.cpp
@@ -51,7 +51,7 @@ public:
   bool get_short_chain_history(std::list<crypto::hash>& ids) const { return true; }
   bool get_stat_info(cryptonote::core_stat_info& st_inf) const {return true;}
   bool have_block(const crypto::hash& id) const {return true;}
-  void get_blockchain_top(uint64_t& height, crypto::hash& top_id)const{height=0;top_id=cryptonote::null_hash;}
+  void get_blockchain_top(uint64_t& height, crypto::hash& top_id)const{height=0;top_id=crypto::null_hash;}
   bool handle_incoming_tx(const cryptonote::blobdata& tx_blob, cryptonote::tx_verification_context& tvc, bool keeped_by_block, bool relayed, bool do_not_relay) { return true; }
   bool handle_incoming_txs(const std::list<cryptonote::blobdata>& tx_blob, std::vector<cryptonote::tx_verification_context>& tvc, bool keeped_by_block, bool relayed, bool do_not_relay) { return true; }
   bool handle_incoming_block(const cryptonote::blobdata& block_blob, cryptonote::block_verification_context& bvc, bool update_miner_blocktemplate = true) { return true; }
diff --git a/tests/unit_tests/checkpoints.cpp b/tests/unit_tests/checkpoints.cpp
index d3c4d3b2b..f6015db2f 100644
--- a/tests/unit_tests/checkpoints.cpp
+++ b/tests/unit_tests/checkpoints.cpp
@@ -30,7 +30,7 @@
 
 #include "gtest/gtest.h"
 
-#include "cryptonote_basic/checkpoints.cpp"
+#include "checkpoints/checkpoints.cpp"
 
 using namespace cryptonote;
 
diff --git a/tests/unit_tests/output_selection.cpp b/tests/unit_tests/output_selection.cpp
index ed436dffd..6ff73b107 100644
--- a/tests/unit_tests/output_selection.cpp
+++ b/tests/unit_tests/output_selection.cpp
@@ -42,7 +42,7 @@ static tools::wallet2::transfer_container make_transfers_container(size_t N)
     tools::wallet2::transfer_details &td = transfers.back();
     td.m_block_height = 1000;
     td.m_spent = false;
-    td.m_txid = cryptonote::null_hash;
+    td.m_txid = crypto::null_hash;
     td.m_txid.data[0] = n & 0xff;
     td.m_txid.data[1] = (n >> 8) & 0xff;
     td.m_txid.data[2] = (n >> 16) & 0xff;
diff --git a/tests/unit_tests/test_tx_utils.cpp b/tests/unit_tests/test_tx_utils.cpp
index 0ff91c247..4ce62e2f5 100644
--- a/tests/unit_tests/test_tx_utils.cpp
+++ b/tests/unit_tests/test_tx_utils.cpp
@@ -141,7 +141,7 @@ TEST(parse_and_validate_tx_extra, is_valid_tx_extra_parsed)
   cryptonote::blobdata b = "dsdsdfsdfsf";
   ASSERT_TRUE(cryptonote::construct_miner_tx(0, 0, 10000000000000, 1000, TEST_FEE, acc.get_keys().m_account_address, tx, b, 1));
   crypto::public_key tx_pub_key = cryptonote::get_tx_pub_key_from_extra(tx);
-  ASSERT_NE(tx_pub_key, cryptonote::null_pkey);
+  ASSERT_NE(tx_pub_key, crypto::null_pkey);
 }
 TEST(parse_and_validate_tx_extra, fails_on_big_extra_nonce)
 {