diff --git a/config/config_embed.go b/config/config_embed.go
index c1f66676f0..5e1a04874e 100644
--- a/config/config_embed.go
+++ b/config/config_embed.go
@@ -30,3 +30,8 @@ var MainNetNeoFS []byte
 //
 //go:embed protocol.testnet.neofs.yml
 var TestNetNeoFS []byte
+
+// UnitTestNet is the unit test network configuration.
+//
+//go:embed protocol.unit_testnet.yml
+var UnitTestNet []byte
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 0278614333..ac8bc5d7be 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -137,6 +137,8 @@ func getEmbeddedConfig(configPath string) ([]byte, error) {
 		return config.MainNetNeoFS, nil
 	case fmt.Sprintf("%s/protocol.%s.yml", DefaultConfigPath, netmode.TestNetNeoFS):
 		return config.TestNetNeoFS, nil
+	case fmt.Sprintf("%s/protocol.%s.yml", DefaultConfigPath, netmode.UnitTestNet):
+		return config.UnitTestNet, nil
 	default:
 		return nil, fmt.Errorf("config '%s' doesn't exist and no matching embedded config was found", configPath)
 	}
diff --git a/pkg/core/blockchain_neotest_test.go b/pkg/core/blockchain_neotest_test.go
index 79490f8386..981ef7d26e 100644
--- a/pkg/core/blockchain_neotest_test.go
+++ b/pkg/core/blockchain_neotest_test.go
@@ -272,7 +272,7 @@ func TestBlockchain_StartFromExistingDB(t *testing.T) {
 
 		_, _, _, err = chain.NewMultiWithCustomConfigAndStoreNoCheck(t, customConfig, cache)
 		require.Error(t, err)
-		require.True(t, strings.Contains(err.Error(), fmt.Sprintf("native %s: version mismatch for the latest hardfork Echidna (stored contract state differs from autogenerated one)", nativenames.CryptoLib)), err)
+		require.True(t, strings.Contains(err.Error(), fmt.Sprintf("native %s: version mismatch for the latest hardfork Default (stored contract state differs from autogenerated one)", nativenames.CryptoLib)), err)
 	})
 
 	t.Run("good", func(t *testing.T) {
diff --git a/pkg/neotest/chain/chain.go b/pkg/neotest/chain/chain.go
index ad5b0ecfb4..4f5f48494e 100644
--- a/pkg/neotest/chain/chain.go
+++ b/pkg/neotest/chain/chain.go
@@ -258,18 +258,13 @@ func NewMultiWithOptionsNoCheck(t testing.TB, options *Options) (*core.Blockchai
 		options = &Options{}
 	}
 
-	cfg := config.Blockchain{
-		ProtocolConfiguration: config.ProtocolConfiguration{
-			Magic:              netmode.UnitTestNet,
-			MaxTraceableBlocks: MaxTraceableBlocks,
-			TimePerBlock:       TimePerBlock,
-			StandbyCommittee:   standByCommittee,
-			ValidatorsCount:    4,
-			VerifyTransactions: true,
-		},
+	cfg, err := config.Load(config.DefaultConfigPath, netmode.UnitTestNet)
+	if err != nil {
+		return nil, nil, nil, err
 	}
+	bcfg := cfg.Blockchain()
 	if options.BlockchainConfigHook != nil {
-		options.BlockchainConfigHook(&cfg)
+		options.BlockchainConfigHook(&bcfg)
 	}
 
 	store := options.Store
@@ -282,7 +277,7 @@ func NewMultiWithOptionsNoCheck(t testing.TB, options *Options) (*core.Blockchai
 		logger = zaptest.NewLogger(t)
 	}
 
-	bc, err := core.NewBlockchain(store, cfg, logger)
+	bc, err := core.NewBlockchain(store, bcfg, logger)
 	if err == nil && !options.SkipRun {
 		go bc.Run()
 		t.Cleanup(bc.Close)
diff --git a/pkg/services/rpcsrv/server_test.go b/pkg/services/rpcsrv/server_test.go
index 5041b44bca..3a7e4393c9 100644
--- a/pkg/services/rpcsrv/server_test.go
+++ b/pkg/services/rpcsrv/server_test.go
@@ -121,7 +121,7 @@ const (
 	// not yet deployed to the testing basic chain.
 	invokescriptContractAVM = "VwIADBQBDAMOBQYMDQIODw0DDgcJAAAAAErZMCQE2zBwaEH4J+yMqiYEEUAMFA0PAwIJAAIBAwcDBAUCAQAOBgwJStkwJATbMHFpQfgn7IyqJgQSQBNA"
 	// block20StateRootLE is an LE stateroot of block #20 of basic testing chain.
-	block20StateRootLE = "394e20adf99a6ba160df7351770dfb193ee8af174b7b3ed45f4e2ae8c43694e8"
+	block20StateRootLE = "c6d742ddd1db4e966a03d02d7d3d08364cff2406c150e1cdf561c64774ed7612"
 )
 
 var (
@@ -1354,22 +1354,22 @@ var rpcTestCases = map[string][]rpcTestCase{
 				return &[]result.Validator{}
 			},
 			/* preview3 doesn't return any validators until there is a vote
-			check: func(t *testing.T, e *executor, validators any) {
-				var expected []result.Validator
-				sBValidators := e.chain.GetStandByValidators()
-				for _, sbValidator := range sBValidators {
-					expected = append(expected, result.Validator{
-						PublicKey: *sbValidator,
-						Votes:     0,
-						Active:    true,
-					})
-				}
-
-				actual, ok := validators.(*[]result.Validator)
-				require.True(t, ok)
-
-				assert.ElementsMatch(t, expected, *actual)
-			},
+			   check: func(t *testing.T, e *executor, validators any) {
+			   	var expected []result.Validator
+			   	sBValidators := e.chain.GetStandByValidators()
+			   	for _, sbValidator := range sBValidators {
+			   		expected = append(expected, result.Validator{
+			   			PublicKey: *sbValidator,
+			   			Votes:     0,
+			   			Active:    true,
+			   		})
+			   	}
+
+			   	actual, ok := validators.(*[]result.Validator)
+			   	require.True(t, ok)
+
+			   	assert.ElementsMatch(t, expected, *actual)
+			   },
 			*/
 		},
 	},
@@ -1456,7 +1456,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 				chg := []dboper.Operation{{
 					State: "Changed",
 					Key:   []byte{0xfa, 0xff, 0xff, 0xff, 0xb},
-					Value: []byte{0xba, 0xaa, 0x3d, 0x19, 0x5e, 0x79, 0x12},
+					Value: []byte{0xba, 0x8c, 0x97, 0x19, 0x5e, 0x79, 0x12},
 				}, {
 					State: "Added",
 					Key:   []byte{0xfb, 0xff, 0xff, 0xff, 0x14, 0xd6, 0x24, 0x87, 0x12, 0xff, 0x97, 0x22, 0x80, 0xa0, 0xae, 0xf5, 0x24, 0x1c, 0x96, 0x4d, 0x63, 0x78, 0x29, 0xcd, 0xb},
diff --git a/pkg/services/rpcsrv/testdata/testblocks.acc b/pkg/services/rpcsrv/testdata/testblocks.acc
index accf2c4abf..0ad1543274 100644
Binary files a/pkg/services/rpcsrv/testdata/testblocks.acc and b/pkg/services/rpcsrv/testdata/testblocks.acc differ