diff --git a/cmd/juno/juno.go b/cmd/juno/juno.go
index acd14b612d..739511ed20 100644
--- a/cmd/juno/juno.go
+++ b/cmd/juno/juno.go
@@ -74,6 +74,7 @@ const (
 	cnL1ChainIDF           = "cn-l1-chain-id"
 	cnL2ChainIDF           = "cn-l2-chain-id"
 	cnCoreContractAddressF = "cn-core-contract-address"
+	cnUnverifiableRangeF   = "cn-unverifiable-range"
 
 	defaultConfig                   = ""
 	defaulHost                      = "localhost"
@@ -121,6 +122,7 @@ const (
 	networkCustomL1ChainIDUsage           = "Custom network L1 chain id."
 	networkCustomL2ChainIDUsage           = "Custom network L2 chain id."
 	networkCustomCoreContractAddressUsage = "Custom network core contract address."
+	networkCustomUnverifiableRange        = "Custom network range of blocks to skip hash verifications (e.g. `0,100`)."
 	pprofUsage                            = "Enables the pprof endpoint on the default port."
 	pprofHostUsage                        = "The interface on which the pprof HTTP server will listen for requests."
 	pprofPortUsage                        = "The port on which the pprof HTTP server will listen for requests."
@@ -237,8 +239,13 @@ func NewCmd(config *node.Config, run func(*cobra.Command, []string) error) *cobr
 		if v.IsSet(cnNameF) {
 			l1ChainID, ok := new(big.Int).SetString(v.GetString(cnL1ChainIDF), 0)
 			if !ok {
-				return fmt.Errorf("invalid L1 chain id %s", v.GetString(cnL1ChainIDF))
+				return fmt.Errorf("invalid %s id %s", cnL1ChainIDF, v.GetString(cnL1ChainIDF))
 			}
+			unverifRange := v.GetIntSlice(cnUnverifiableRangeF)
+			if len(unverifRange) != 2 || unverifRange[0] < 0 || unverifRange[1] < 0 {
+				return fmt.Errorf("invalid %s:%v, must be uint array of length 2 (e.g. `0,100`)", cnUnverifiableRangeF, unverifRange)
+			}
+
 			config.Network = utils.Network{
 				Name:                v.GetString(cnNameF),
 				FeederURL:           v.GetString(cnFeederURLF),
@@ -247,7 +254,8 @@ func NewCmd(config *node.Config, run func(*cobra.Command, []string) error) *cobr
 				L2ChainID:           v.GetString(cnL2ChainIDF),
 				CoreContractAddress: common.HexToAddress(v.GetString(cnCoreContractAddressF)),
 				BlockHashMetaInfo: &utils.BlockHashMetaInfo{
-					First07Block: 0,
+					First07Block:      0,
+					UnverifiableRange: []uint64{uint64(unverifRange[0]), uint64(unverifRange[1])},
 				},
 			}
 		}
@@ -269,6 +277,7 @@ func NewCmd(config *node.Config, run func(*cobra.Command, []string) error) *cobr
 	defaultLogLevel := utils.INFO
 	defaultNetwork := utils.Mainnet
 	defaultMaxVMs := 3 * runtime.GOMAXPROCS(0)
+	defaultCNUnverifiableRange := []int{} // Uint64Slice is not supported in Flags()
 
 	junoCmd.Flags().StringVar(&cfgFile, configF, defaultConfig, configFlagUsage)
 	junoCmd.Flags().Var(&defaultLogLevel, logLevelF, logLevelFlagUsage)
@@ -286,6 +295,7 @@ func NewCmd(config *node.Config, run func(*cobra.Command, []string) error) *cobr
 	junoCmd.Flags().String(cnL1ChainIDF, defaultCNL1ChainID, networkCustomL1ChainIDUsage)
 	junoCmd.Flags().String(cnL2ChainIDF, defaultCNL2ChainID, networkCustomL2ChainIDUsage)
 	junoCmd.Flags().String(cnCoreContractAddressF, defaultCNCoreContractAddressStr, networkCustomCoreContractAddressUsage)
+	junoCmd.Flags().IntSlice(cnUnverifiableRangeF, defaultCNUnverifiableRange, networkCustomUnverifiableRange)
 	junoCmd.Flags().String(ethNodeF, defaultEthNode, ethNodeUsage)
 	junoCmd.Flags().Bool(pprofF, defaultPprof, pprofUsage)
 	junoCmd.Flags().String(pprofHostF, defaulHost, pprofHostUsage)
@@ -308,7 +318,7 @@ func NewCmd(config *node.Config, run func(*cobra.Command, []string) error) *cobr
 	junoCmd.Flags().Uint(dbCacheSizeF, defaultCacheSizeMb, dbCacheSizeUsage)
 	junoCmd.Flags().String(gwAPIKeyF, defaultGwAPIKey, gwAPIKeyUsage)
 	junoCmd.Flags().Int(dbMaxHandlesF, defaultMaxHandles, dbMaxHandlesUsage)
-	junoCmd.MarkFlagsRequiredTogether(cnNameF, cnFeederURLF, cnGatewayURLF, cnL1ChainIDF, cnL2ChainIDF, cnCoreContractAddressF)
+	junoCmd.MarkFlagsRequiredTogether(cnNameF, cnFeederURLF, cnGatewayURLF, cnL1ChainIDF, cnL2ChainIDF, cnCoreContractAddressF, cnUnverifiableRangeF) //nolint:lll
 	junoCmd.MarkFlagsMutuallyExclusive(networkF, cnNameF)
 
 	return junoCmd
diff --git a/cmd/juno/juno_test.go b/cmd/juno/juno_test.go
index bf55bbdbd5..19b229a622 100644
--- a/cmd/juno/juno_test.go
+++ b/cmd/juno/juno_test.go
@@ -46,7 +46,8 @@ func TestConfigPrecedence(t *testing.T) {
 		L1ChainID:           new(big.Int).SetUint64(1),
 		CoreContractAddress: defaultCoreContractAddress,
 		BlockHashMetaInfo: &utils.BlockHashMetaInfo{
-			First07Block: 0,
+			First07Block:      0,
+			UnverifiableRange: []uint64{0, 10},
 		},
 	}
 	defaultPprof := false
@@ -76,6 +77,7 @@ func TestConfigPrecedence(t *testing.T) {
 				"--db-path", "/home/.juno", "--pprof", "--db-cache-size", "8",
 				"--cn-name", "custom", "--cn-feeder-url", "awesome_feeder_url", "--cn-gateway-url", "awesome_gateway_url",
 				"--cn-l1-chain-id", "0x1", "--cn-l2-chain-id", "SN_AWESOME",
+				"--cn-unverifiable-range", "0,10",
 				"--cn-core-contract-address", "0xc662c410C0ECf747543f5bA90660f6ABeBD9C8c4",
 			},
 			expectedConfig: &node.Config{
@@ -119,6 +121,7 @@ cn-gateway-url: awesome_gateway_url
 cn-l2-chain-id: SN_AWESOME
 cn-l1-chain-id: 0x1
 cn-core-contract-address: 0xc662c410C0ECf747543f5bA90660f6ABeBD9C8c4
+cn-unverifiable-range: [0,10]
 `,
 			expectedConfig: &node.Config{
 				LogLevel:            utils.DEBUG,
diff --git a/core/block.go b/core/block.go
index ebf1920373..38a88eef57 100644
--- a/core/block.go
+++ b/core/block.go
@@ -68,12 +68,17 @@ func VerifyBlockHash(b *Block, network *utils.Network) (*BlockCommitments, error
 		}
 	}
 
-	if err := VerifyTransactions(b.Transactions, network, b.ProtocolVersion); err != nil {
-		return nil, err
-	}
-
 	metaInfo := network.BlockHashMetaInfo
 	unverifiableRange := metaInfo.UnverifiableRange
+
+	skipVerification := unverifiableRange != nil && b.Number >= unverifiableRange[0] && b.Number <= unverifiableRange[1] //nolint:gocritic
+
+	if !skipVerification {
+		if err := VerifyTransactions(b.Transactions, network, b.ProtocolVersion); err != nil {
+			return nil, err
+		}
+	}
+
 	fallbackSeqAddresses := []*felt.Felt{&felt.Zero}
 	if metaInfo.FallBackSequencerAddress != nil {
 		fallbackSeqAddresses = append(fallbackSeqAddresses, metaInfo.FallBackSequencerAddress)
@@ -91,12 +96,10 @@ func VerifyBlockHash(b *Block, network *utils.Network) (*BlockCommitments, error
 
 		if hash.Equal(b.Hash) {
 			return commitments, nil
-		} else if unverifiableRange != nil {
+		} else if skipVerification {
 			// Check if the block number is in the unverifiable range
-			if b.Number >= unverifiableRange[0] && b.Number <= unverifiableRange[1] {
-				// If so, return success
-				return commitments, nil
-			}
+			// If so, return success
+			return commitments, nil
 		}
 	}