diff --git a/cardano/mainnet/00_common.sh b/cardano/mainnet/00_common.sh
index c2b7332..9ee5cf0 100755
--- a/cardano/mainnet/00_common.sh
+++ b/cardano/mainnet/00_common.sh
@@ -1534,6 +1534,143 @@ queryLight_UTXO() { #${1} = address to query
 	unset utxoRet response responseCode responseJSON addr error errorcnt
 
 }
+# Return authoritative reference-script sizes for an exact JSON array of transaction inputs.
+queryReferenceScriptSizes() {
+	local requested="${1}"
+	local ids id result="{}" response responseJSON responseCode size sizeJSON rows
+	local -a queryArgs
+
+	if ! ids=$(jq -ce 'if type != "array" or any(.[]; type != "string" or (test("^[0-9a-fA-F]{64}#[0-9]+$") | not)) or length != (unique | length) then error("invalid input list") else . end' <<< "${requested}" 2>/dev/null); then
+		echo "ERROR - Invalid reference-script input list." >&2
+		return 1
+	fi
+	if [[ "$(jq length <<< "${ids}")" -eq 0 ]]; then printf '{}'; return 0; fi
+
+	case ${workMode} in
+		"online")
+			queryArgs=()
+			while IFS= read -r id; do queryArgs+=(--tx-in "${id}"); done < <(jq -r '.[]' <<< "${ids}")
+			response=$(${cardanocli} ${cliEra} query utxo --output-json "${queryArgs[@]}" 2>&1)
+			if [[ $? -ne 0 ]] || ! jq -e --argjson ids "${ids}" '
+				. as $utxos | type == "object" and
+				(keys | sort) == ($ids | sort) and
+				all($ids[]; . as $id | $utxos[$id] | type == "object" and has("referenceScript"))
+			' >/dev/null 2>&1 <<< "${response}"; then
+				echo "ERROR - Could not obtain complete reference-script information from cardano-cli." >&2
+				return 1
+			fi
+			while IFS= read -r id; do
+				if [[ "$(jq -r --arg id "${id}" '.[$id].referenceScript == null' <<< "${response}")" == "true" ]]; then
+					result=$(jq -c --arg id "${id}" '. + {($id): null}' <<< "${result}")
+				else
+					size=$(${cardanocli} ${cliEra} query ref-script-size --output-json --tx-in "${id}" 2>&1)
+					if [[ $? -ne 0 ]] || ! size=$(jq -er '.refInputScriptSize | select(type == "number" and . >= 0 and floor == .)' <<< "${size}" 2>/dev/null); then
+						echo "ERROR - Could not determine the reference-script size for '${id}'." >&2
+						return 1
+					fi
+					result=$(jq -c --arg id "${id}" --argjson size "${size}" '. + {($id): $size}' <<< "${result}")
+				fi
+			done < <(jq -r '.[]' <<< "${ids}")
+			;;
+
+		"light")
+			local errorcnt=0 error=-1
+			while [[ ${errorcnt} -lt 5 && ${error} -ne 0 ]]; do
+				error=0
+				response=$(curl -sL -m 120 -X POST -w "---spo-scripts---%{http_code}" "${koiosAPI}/utxo_info?select=tx_hash,tx_index,is_spent,reference_script->hash,reference_script->size" -H "${koiosAuthorizationHeader}" -H "Accept: application/json" -H "Content-Type: application/json" -d "$(jq -cn --argjson ids "${ids}" '{_utxo_refs:$ids,_extended:true}')" 2>/dev/null)
+				if [[ $? -ne 0 ]]; then error=1; fi
+				errorcnt=$((errorcnt + 1))
+			done
+			if [[ ${error} -ne 0 || ! "${response}" =~ (.*)---spo-scripts---([0-9]+)$ ]]; then
+				echo "ERROR - Query of the Koios-API via curl failed." >&2
+				return 1
+			fi
+			responseJSON="${BASH_REMATCH[1]}"; responseCode="${BASH_REMATCH[2]}"
+			if [[ "${responseCode}" != "200" ]]; then echo "ERROR - Koios HTTP response code: ${responseCode}" >&2; return 1; fi
+			if ! rows=$(jq -ce --argjson ids "${ids}" '
+				if type != "array" then error("not an array") else
+					map(. + {id:(.tx_hash + "#" + (.tx_index | tostring))}) |
+					if length != ($ids | length) or (map(.id) | sort) != ($ids | sort) or (map(.id) | unique | length) != length or
+					   any(.[]; .is_spent != false or (has("hash") | not) or (has("size") | not) or
+					       (((.hash == null and .size == null) or
+					         ((.hash | type) == "string" and (.hash | test("^[0-9a-fA-F]{56}$")) and
+					          (.size | type) == "number" and .size >= 0 and (.size | floor) == .size)) | not))
+					then error("incomplete response") else . end
+				end
+			' <<< "${responseJSON}" 2>/dev/null); then
+				echo "ERROR - Koios returned incomplete or invalid reference-script information." >&2
+				return 1
+			fi
+			result=$(jq -c 'map({key:.id, value:(if .hash == null then null else .size end)}) | from_entries' <<< "${rows}")
+			;;
+
+		"offline")
+			if ! jq -e 'type == "object"' >/dev/null 2>&1 <<< "${offlineJSON:-}"; then readOfflineFile; fi
+			while IFS= read -r id; do
+				if ! sizeJSON=$(jq -ce --arg id "${id}" '
+					[.address[]? | select((.utxoJSON | type) == "object" and (.utxoJSON | has($id))) |
+					 if (.referenceScriptSizes | type) == "object" and (.referenceScriptSizes | has($id))
+					 then .referenceScriptSizes[$id] else "__missing__" end] as $matches |
+					if ($matches | length) != 1 or $matches[0] == "__missing__" or
+					   (($matches[0] == null) | not) and (($matches[0] | type) != "number" or $matches[0] < 0 or ($matches[0] | floor) != $matches[0])
+					then error("missing or conflicting metadata") else [$matches[0]] end
+				' <<< "${offlineJSON}" 2>/dev/null); then
+					echo "Reference-script information is missing; refresh the payment address with 01_workOffline.sh add on the online/light machine and transfer the capture again." >&2
+					return 1
+				fi
+				size=$(jq -c '.[0]' <<< "${sizeJSON}")
+				result=$(jq -c --arg id "${id}" --argjson size "${size}" '. + {($id): $size}' <<< "${result}")
+			done < <(jq -r '.[]' <<< "${ids}")
+			;;
+
+		*) echo "ERROR - Unknown workMode '${workMode}'." >&2; return 1;;
+	esac
+
+	printf '%s' "${result}"
+}
+
+# Inspect the real transaction body, set referenceScriptSize, and warn about script-bearing inputs.
+prepareReferenceScriptSpend() {
+	local txFile="${1}" view ids sizes feeIds spending collateralOnly
+	unset referenceScriptSize
+
+	view=$(${cardanocli} debug transaction view --output-json --tx-file "${txFile}" 2>&1)
+	if [[ $? -ne 0 ]] || ! jq -e '
+		type == "object" and
+		has("inputs") and has("reference inputs") and has("collateral inputs") and
+		([.inputs, ."reference inputs", ."collateral inputs"] | all(.[]; type == "array" and all(.[]; type == "string")))
+	' >/dev/null 2>&1 <<< "${view}"; then
+		echo "ERROR - Could not inspect transaction inputs in '${txFile}'." >&2
+		return 1
+	fi
+
+	ids=$(jq -c '[.inputs[], ."reference inputs"[], ."collateral inputs"[]] | unique' <<< "${view}")
+	sizes=$(queryReferenceScriptSizes "${ids}") || return 1
+	feeIds=$(jq -c '[.inputs[], ."reference inputs"[]] | unique' <<< "${view}")
+	if ! referenceScriptSize=$(jq -er --argjson ids "${feeIds}" --argjson sizes "${sizes}" '$ids | map($sizes[.] // 0) | add // 0 | select(type == "number" and . >= 0 and floor == .)' <<< '{}'); then
+		unset referenceScriptSize
+		echo "ERROR - Invalid reference-script fee total." >&2
+		return 1
+	fi
+
+	spending=$(jq -r --argjson sizes "${sizes}" '.inputs[] | select($sizes[.] != null) | "\(.) (\($sizes[.]) bytes)"' <<< "${view}")
+	if [[ -n "${spending}" ]]; then
+		echo "WARNING: This transaction spends reference-script UTxOs. Their existing reference locations will disappear; sending ADA back does not preserve the scripts. Applications using these UTxOs may stop working." >&2
+		while IFS= read -r id; do echo "  ${id}" >&2; done <<< "${spending}"
+	fi
+
+	collateralOnly=$(jq -r --argjson sizes "${sizes}" '
+		([.inputs[], ."reference inputs"[]] | unique) as $fee |
+		."collateral inputs"[] as $id | select(($fee | index($id)) == null and $sizes[$id] != null) |
+		"\($id) (\($sizes[$id]) bytes)"
+	' <<< "${view}")
+	if [[ -n "${collateralOnly}" ]]; then
+		echo "WARNING: These collateral reference-script UTxOs may be consumed if phase-2 validation fails:" >&2
+		while IFS= read -r id; do echo "  ${id}" >&2; done <<< "${collateralOnly}"
+	fi
+	return 0
+}
+
 #-------------------------------------------------------
 
 
diff --git a/cardano/mainnet/01_claimRewards.sh b/cardano/mainnet/01_claimRewards.sh
index c4bf923..514f3ff 100755
--- a/cardano/mainnet/01_claimRewards.sh
+++ b/cardano/mainnet/01_claimRewards.sh
@@ -616,8 +616,10 @@ if [[ ${rxcnt} == 1 ]]; then
 			checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -756,6 +758,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed rewards withdrawal from '${stakeAddr}' to '${toAddr}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -763,7 +766,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/01_sendAssets.sh b/cardano/mainnet/01_sendAssets.sh
index 194b5a5..2a618e7 100755
--- a/cardano/mainnet/01_sendAssets.sh
+++ b/cardano/mainnet/01_sendAssets.sh
@@ -676,8 +676,10 @@ dummyReturnAmount=$(( ${totalLovelaces} - ${lovelacesToSend} ))
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${lovelacesToSend}${assetsSendString}" --tx-out "${sendFromAddr}+${dummyReturnAmount}${assetsReturnString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -814,6 +816,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"generated and signed utxo-token-transaction from '${fromAddr}' to '${toAddr}'\" } ]" <<< ${offlineJSON})
@@ -821,7 +824,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/01_sendLovelaces.sh b/cardano/mainnet/01_sendLovelaces.sh
index 1c6d262..1d0b60e 100755
--- a/cardano/mainnet/01_sendLovelaces.sh
+++ b/cardano/mainnet/01_sendLovelaces.sh
@@ -473,8 +473,10 @@ if [[ ${rxcnt} == 1 ]]; then  #Sending ALLFUNDS or sending ALL lovelaces and no
 			checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -685,6 +687,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
 									sendFromAddr: \"${sendFromAddr}\",
 									toAddr: \"${toAddr}\",
 									sendToAddr: \"${sendToAddr}\",
+									referenceScriptSize: ${referenceScriptSize},
 									txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
 				#Write the new offileFile content
 				offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed utxo-transaction from '${fromAddr}' to '${toAddr}'\" } ]" <<< ${offlineJSON})
@@ -692,7 +695,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
 				echo "${offlineJSON}" > ${offlineFile}
 				#Readback the tx content and compare it to the current one
 				readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-				if [[ "${txFileJSON}" == "${readback}" ]]; then
+				readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+				if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/01_workOffline.sh b/cardano/mainnet/01_workOffline.sh
index 328a598..f90eb21 100755
--- a/cardano/mainnet/01_workOffline.sh
+++ b/cardano/mainnet/01_workOffline.sh
@@ -300,6 +300,8 @@ if [[ ${typeOfAddr} == ${addrTypePayment} ]]; then  #Enterprise and Base UTXO ad
 
         utxoEntryCnt=$(jq length <<< ${utxoJSON})
         if [[ ${utxoEntryCnt} == 0 ]]; then echo -e "\e[35mNo funds on the Address!\e[0m\n"; exit 1; else echo -e "\e[32m${utxoEntryCnt} UTXOs\e[0m found on the Address!"; fi
+        referenceScriptSizes=$(queryReferenceScriptSizes "$(jq -c 'keys' <<< "${utxoJSON}")")
+        if [[ $? -ne 0 ]]; then exit 1; fi
         echo
 
         totalLovelaces=0;       #Init for the Sum
@@ -429,6 +431,7 @@ if [[ ${typeOfAddr} == ${addrTypePayment} ]]; then  #Enterprise and Base UTXO ad
         offlineJSON=$( jq ".address.\"${checkAddr}\" += {used: \"no\" }" <<< ${offlineJSON})
         offlineJSON=$( jq ".address.\"${checkAddr}\" += {type: \"${typeOfAddr}\" }" <<< ${offlineJSON})
         offlineJSON=$( jq ".address.\"${checkAddr}\" += {utxoJSON: ${utxoJSON} }" <<< ${offlineJSON})
+        offlineJSON=$( jq ".address.\"${checkAddr}\".referenceScriptSizes = ${referenceScriptSizes}" <<< ${offlineJSON})
 
         offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"added utxo-info for '${addrName}'\" } ]" <<< ${offlineJSON})
 
@@ -437,8 +440,10 @@ if [[ ${typeOfAddr} == ${addrTypePayment} ]]; then  #Enterprise and Base UTXO ad
 
 	#Readback the content and compare it to the current one
 	utxoJSON=$(jq . <<< ${utxoJSON}) # bring it into the same format
-        readback=$(cat ${offlineFile} | jq -r ".address.\"${checkAddr}\".utxoJSON")
-        if [[ "${utxoJSON}" == "${readback}" ]]; then
+	referenceScriptSizes=$(jq . <<< ${referenceScriptSizes})
+        readback=$(jq -r ".address.\"${checkAddr}\".utxoJSON" < "${offlineFile}")
+        readbackReferenceScriptSizes=$(jq -r ".address.\"${checkAddr}\".referenceScriptSizes" < "${offlineFile}")
+        if [[ "${utxoJSON}" == "${readback}" && "${referenceScriptSizes}" == "${readbackReferenceScriptSizes}" ]]; then
 							showOfflineFileInfo;
 							echo -e "\e[33mLatest Information about this address was added to the '$(basename ${offlineFile})'.\nYou can now transfer it to your offline machine to work with it, or you can\nadd another address information to the file by re-running this script.\e[0m\n";
 						 else
@@ -669,8 +674,19 @@ transactionTxJSON=$(jq -r ".transactions[${transactionIdx}].txJSON" <<< ${offlin
 #Write out the TxJSON to a temporary file
 txFile="${tempDir}/$(basename ${transactionFromName}).tmp.txfile"
 rm ${txFile} 2> /dev/null #delete an old one if present
+
 echo "${transactionTxJSON}" > ${txFile};
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
+# Re-resolve fee-critical input metadata before any queued transaction can be submitted.
+prepareReferenceScriptSpend "$txFile" || exit 1
+recordedReferenceScriptSize=$(jq -c ".transactions[${transactionIdx}] | if has(\"referenceScriptSize\") then .referenceScriptSize else \"missing\" end" <<< "${offlineJSON}")
+if ! jq -e --argjson resolved "${referenceScriptSize}" '
+	(type == "number" and . >= 0 and floor == . and . == $resolved) or
+	(. == "missing" and $resolved == 0)
+' >/dev/null 2>&1 <<< "${recordedReferenceScriptSize}"; then
+	echo -e "\e[35mReference-script fee information is missing or mismatched; rebuild and re-sign this transaction with the updated scripts.\e[0m" >&2
+	exit 1
+fi
 
 case ${transactionType} in
 
diff --git a/cardano/mainnet/03b_regStakingAddrCert.sh b/cardano/mainnet/03b_regStakingAddrCert.sh
index f94ae4c..057e48f 100755
--- a/cardano/mainnet/03b_regStakingAddrCert.sh
+++ b/cardano/mainnet/03b_regStakingAddrCert.sh
@@ -552,8 +552,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${stakeAddr}.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -695,6 +697,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed staking key registration transaction for '${stakeAddr}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -702,7 +705,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/05c_regStakepoolCert.sh b/cardano/mainnet/05c_regStakepoolCert.sh
index 941c7c3..cae48d3 100755
--- a/cardano/mainnet/05c_regStakepoolCert.sh
+++ b/cardano/mainnet/05c_regStakepoolCert.sh
@@ -175,10 +175,12 @@ poolJSON=$(cat ${poolFile}.pool.json)	#Read PoolJSON File into poolJSON variable
 #Check if there is already an opened witness in the poolJSON, if not create a new one with the current utctime in seconds as id
 regWitnessID=$(jq -r .regWitness.id <<< ${poolJSON} 2> /dev/null);
 if [[ "${regWitnessID}" == null || "${regWitnessID}" == 0 ]]; then #Opening up a new witness in the poolJSON
+	newWitnessCollection=true
 	regWitnessID=""; #used later to determine if it is a new witnesscollection or an existing one
 	poolJSON=$(jq ".regWitness = { id: $(date +%s), type: \"\", ttl: 0, regPayName: \"\", txBody: {}, witnesses: {} }" <<< ${poolJSON})
 	#Write the opened Witness only if the txBody was created successfully
 	else
+	newWitnessCollection=false
 	regWitnessDate=$(date --date="@${regWitnessID}") #Get date of the already existing witnesscollection
 fi
 
@@ -658,8 +660,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} ${registrationCerts} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count ${witnessCount} --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count ${witnessCount} --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -724,6 +728,7 @@ echo
 
 poolJSON=$(jq ".regWitness.ttl = ${ttl}" <<< ${poolJSON})
 poolJSON=$(jq ".regWitness.txBody = $(cat ${txBodyFile})" <<< ${poolJSON})
+poolJSON=$(jq ".regWitness.referenceScriptSize = ${referenceScriptSize}" <<< ${poolJSON})
 poolJSON=$(jq ".regWitness.regPayName = \"${regPayName}\"" <<< ${poolJSON})
 poolJSON=$(jq ".regWitness.regPayAmount = ${minRegistrationFees}" <<< ${poolJSON})
 poolJSON=$(jq ".regWitness.regPayReturn = ${lovelacesToSend}" <<< ${poolJSON})
@@ -848,6 +853,19 @@ regWitnessID=$(jq -r ".regWitness.id" <<< ${poolJSON})
 regWitnessDate=$(date --date="@${regWitnessID}" -R)
 regWitnessType=$(jq -r ".regWitness.type" <<< ${poolJSON})
 regWitnessTxBody=$(jq -r ".regWitness.txBody" <<< ${poolJSON})
+txBodyFile="${tempDir}/$(basename ${poolName}).txbody"
+echo "${regWitnessTxBody}" > "${txBodyFile}"
+if ! ${newWitnessCollection}; then
+	prepareReferenceScriptSpend "${txBodyFile}" || exit 1
+	storedReferenceScriptSize=$(jq -c '.regWitness | if has("referenceScriptSize") then .referenceScriptSize else "missing" end' <<< "${poolJSON}")
+	if ! jq -e --argjson resolved "${referenceScriptSize}" '
+		(type == "number" and . >= 0 and floor == . and . == $resolved) or
+		(. == "missing" and $resolved == 0)
+	' >/dev/null 2>&1 <<< "${storedReferenceScriptSize}"; then
+		echo -e "\e[35mReference-script fee information is missing or mismatched. Run 05d_poolWitness.sh clear ${poolFile} and rebuild this transaction.\e[0m" >&2
+		exit 1
+	fi
+fi
 regWitnessHardwareWalletIncluded=$(jq -r ".regWitness.hardwareWalletIncluded" <<< ${poolJSON})
 regWitnessPayAmount=$(jq -r ".regWitness.regPayAmount" <<< ${poolJSON})
 regWitnessPayReturn=$(jq -r ".regWitness.regPayReturn" <<< ${poolJSON})
@@ -933,8 +951,6 @@ fi
 #
 
 txFile="${tempDir}/$(basename ${poolName}).tx"
-txBodyFile="${tempDir}/$(basename ${poolName}).txbody"
-echo "${regWitnessTxBody}" > ${txBodyFile}
 
 echo -e "\e[0mAssemble the Transaction with the payment \e[32m${regPayName}.skey\e[0m, node\e[32m ${poolName}.node.skey/hwsfile\e[0m and all PoolOwner Witnesses: \e[32m ${txFile} \e[90m"
 echo
@@ -1079,6 +1095,7 @@ if ask "\e[33mDoes this look good for you? Do you have enough pledge in your own
 									regProtectionKey: \"${regProtectionKey}\",
 									poolMetaUrl: \"${poolMetaUrl}\",
 									poolMetaHash: \"${poolMetaHash}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed pool registration transaction for '${poolMetaTicker}', payment via '${regPayName}'\" } ]" <<< ${offlineJSON})
@@ -1107,7 +1124,8 @@ if ask "\e[33mDoes this look good for you? Do you have enough pledge in your own
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
 							echo
 							echo -e "\e[0mStakepool Info JSON:\e[32m ${poolFile}.pool.json \e[90m"
 							cat ${poolFile}.pool.json
diff --git a/cardano/mainnet/05d_poolWitness.sh b/cardano/mainnet/05d_poolWitness.sh
index 934b05a..78b69c2 100755
--- a/cardano/mainnet/05d_poolWitness.sh
+++ b/cardano/mainnet/05d_poolWitness.sh
@@ -403,6 +403,7 @@ case ${action} in
 		rm ${tmpWitnessTxBody} 2> /dev/null
 		rm ${tmpWitnessFile} 2> /dev/null
 		echo "${witnessTxBody}" > ${tmpWitnessTxBody}
+		prepareReferenceScriptSpend "${tmpWitnessTxBody}" || exit 1
 
 
 		#Sign via normal cli skey or hardware key, depends on the content of the vkey description
diff --git a/cardano/mainnet/06_regDelegationCert.sh b/cardano/mainnet/06_regDelegationCert.sh
index c59f930..7737d08 100755
--- a/cardano/mainnet/06_regDelegationCert.sh
+++ b/cardano/mainnet/06_regDelegationCert.sh
@@ -550,8 +550,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${delegName}.deleg.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -687,6 +689,7 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${regPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed delegation cert registration transaction for '${delegName}', payment via '${regPayName}'\" } ]" <<< ${offlineJSON})
@@ -694,7 +697,8 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/07b_deregStakepoolCert.sh b/cardano/mainnet/07b_deregStakepoolCert.sh
index 0da680c..7b0aac0 100755
--- a/cardano/mainnet/07b_deregStakepoolCert.sh
+++ b/cardano/mainnet/07b_deregStakepoolCert.sh
@@ -402,8 +402,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${deregCertFile} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -564,6 +566,7 @@ if ask "\e[33mDoes this look good for you? Continue ?" N; then
                                                                         toAddr: \"${deregPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
                                                                         poolMetaTicker: \"${poolMetaTicker}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed pool retirement transaction for '${poolMetaTicker}', payment via '${deregPayName}'\" } ]" <<< ${offlineJSON})
@@ -571,7 +574,8 @@ if ask "\e[33mDoes this look good for you? Continue ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         file_unlock ${poolFile}.pool.json
                                                         newJSON=$(cat ${poolFile}.pool.json | jq ". += {deregSubmitted: \"$(date -R) (only offline, no proof)\"}")
                                                         echo "${newJSON}" > ${poolFile}.pool.json
diff --git a/cardano/mainnet/08b_deregStakingAddrCert.sh b/cardano/mainnet/08b_deregStakingAddrCert.sh
index 8da2d90..e717549 100755
--- a/cardano/mainnet/08b_deregStakingAddrCert.sh
+++ b/cardano/mainnet/08b_deregStakingAddrCert.sh
@@ -536,8 +536,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${stakeAddr}.dereg-cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -684,6 +686,7 @@ if ask "\e[33mDoes this look good for you, continue ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed staking key deregistration transaction for '${stakeAddr}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -691,7 +694,8 @@ if ask "\e[33mDoes this look good for you, continue ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/11a_mintAsset.sh b/cardano/mainnet/11a_mintAsset.sh
index f7a388b..520bddc 100755
--- a/cardano/mainnet/11a_mintAsset.sh
+++ b/cardano/mainnet/11a_mintAsset.sh
@@ -400,8 +400,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --mint "${assetMintAmount} ${policyID}${point}${assetMintName}" --minting-script-file ${policyName}.policy.script --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -646,6 +648,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"minted ${assetMintAmount} '${assetMintInputName}' on '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -653,7 +656,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
 
 			                                #Updating the ${policyName}.${assetMintInputName}.asset json
 			                                assetFileName="${policyName}.${assetMintInputName}.asset"
diff --git a/cardano/mainnet/11b_burnAsset.sh b/cardano/mainnet/11b_burnAsset.sh
index 0831e72..6472d7a 100755
--- a/cardano/mainnet/11b_burnAsset.sh
+++ b/cardano/mainnet/11b_burnAsset.sh
@@ -397,8 +397,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --mint "-${assetBurnAmount} ${policyID}${point}${assetBurnName}" --minting-script-file ${policyName}.policy.script --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -648,6 +650,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\e[33mDoes this look good for you,
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"burned ${assetBurnAmount} '${assetBurnInputName}' on '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -655,7 +658,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\e[33mDoes this look good for you,
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
 
 
 			                                #Updating the ${policyName}.${assetBurnName}.asset json
diff --git a/cardano/mainnet/21b_regDRepCert.sh b/cardano/mainnet/21b_regDRepCert.sh
index e79cf4a..ab9abbf 100755
--- a/cardano/mainnet/21b_regDRepCert.sh
+++ b/cardano/mainnet/21b_regDRepCert.sh
@@ -570,8 +570,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${drepName}.drep-reg.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -718,6 +720,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed drep-id registration transaction for '${drepName}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -725,7 +728,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/21d_retDRepCert.sh b/cardano/mainnet/21d_retDRepCert.sh
index 7eaf81d..4c03006 100755
--- a/cardano/mainnet/21d_retDRepCert.sh
+++ b/cardano/mainnet/21d_retDRepCert.sh
@@ -448,8 +448,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${drepName}.drep-ret.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -596,6 +598,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed drep-id retirement transaction for '${drepName}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -603,7 +606,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/22b_regVoteDelegCert.sh b/cardano/mainnet/22b_regVoteDelegCert.sh
index 21556e8..50a2e78 100755
--- a/cardano/mainnet/22b_regVoteDelegCert.sh
+++ b/cardano/mainnet/22b_regVoteDelegCert.sh
@@ -546,8 +546,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${delegName}.vote-deleg.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -689,6 +691,7 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${regPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed vote-delegation cert registration transaction for '${delegName}', payment via '${regPayName}'\" } ]" <<< ${offlineJSON})
@@ -696,7 +699,8 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/23c_regComAuthCert.sh b/cardano/mainnet/23c_regComAuthCert.sh
index fab5797..4ba3a44 100755
--- a/cardano/mainnet/23c_regComAuthCert.sh
+++ b/cardano/mainnet/23c_regComAuthCert.sh
@@ -493,8 +493,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${comHotName}.cc-hot.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -642,6 +644,7 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${regPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed committee authorization cert registration transaction for '${comColdName}/${comHotName}', payment via '${regPayName}'\" } ]" <<< ${offlineJSON})
@@ -649,7 +652,8 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/23e_retComColdKeys.sh b/cardano/mainnet/23e_retComColdKeys.sh
index 6e8411d..a0ad7a8 100755
--- a/cardano/mainnet/23e_retComColdKeys.sh
+++ b/cardano/mainnet/23e_retComColdKeys.sh
@@ -554,8 +554,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${comColdName}.cc-cold-ret.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -702,6 +704,7 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${retPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed committee authorization cert registration transaction for '${comColdName}/${comHotName}', payment via '${retPayName}'\" } ]" <<< ${offlineJSON})
@@ -709,7 +712,8 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/24b_regVote.sh b/cardano/mainnet/24b_regVote.sh
index 05aa678..87345b2 100755
--- a/cardano/mainnet/24b_regVote.sh
+++ b/cardano/mainnet/24b_regVote.sh
@@ -544,8 +544,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} ${votefileParameter} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -730,6 +732,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed utxo-transaction from '${fromAddr}' to '${toAddr}'\" } ]" <<< ${offlineJSON})
@@ -737,7 +740,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/25b_regAction.sh b/cardano/mainnet/25b_regAction.sh
index 6ee0dbf..8af4cc3 100755
--- a/cardano/mainnet/25b_regAction.sh
+++ b/cardano/mainnet/25b_regAction.sh
@@ -745,12 +745,14 @@ case "${voteActionTag,,}" in
                         --fee 200000 ${metafileParameter} ${actionfileParameter} --out-file ${txBodyFile} 2> /dev/stdout
 		checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+		prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 		#calculate the transaction fee. new parameters since cardano-cli 8.21.0
 		fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text \
 			--tx-body-file ${txBodyFile} \
 			--protocol-params-file <(echo ${protocolParametersJSON}) \
 			--witness-count 2 \
-			--reference-script-size 0 2> /dev/stdout)
+			--reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 		checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
 		if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
@@ -763,8 +765,9 @@ case "${voteActionTag,,}" in
 		#Generate Dummy-TxBody file for fee calculation
 		${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} ${actionfileParameter} --out-file ${txBodyFile}
 		checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
+		prepareReferenceScriptSpend "$txBodyFile" || exit 1
 		#calculate the transaction fee. new parameters since cardano-cli 8.21.0
-		fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size 0 2> /dev/stdout)
+		fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 		if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 		fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 		echo -e "\e[0mMimimum transfer Fee for ${txcnt}x TxIn & ${rxcnt}x TxOut: \e[32m $(convertToADA ${fee}) ADA / ${fee} lovelaces \e[90m"
@@ -958,6 +961,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed utxo-transaction from '${fromAddr}' to '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -965,7 +969,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/mainnet/README.md b/cardano/mainnet/README.md
index b47bad3..668a3e5 100644
--- a/cardano/mainnet/README.md
+++ b/cardano/mainnet/README.md
@@ -291,6 +291,10 @@ Checkout the configuration parameters in your 00_common.sh Main-Configuration fi
 
   The scripts uses per default (configurable) the file **offlineTransfer.json** to store the data in between the Machines.
 
+Offline address captures include reference-script sizes used for fee calculation. Refresh each payment address with `./01_workOffline.sh add <wallet>` before building or signing if the capture was created by an older script version.
+
+Transactions that spend UTxOs carrying reference scripts print a warning. Sending the ADA back to the same address does not recreate those scripts; applications using the spent reference locations may stop working.
+
 &nbsp;<br>
 </details>
       
diff --git a/cardano/testnet/00_common.sh b/cardano/testnet/00_common.sh
index 4b31622..4d7df77 100755
--- a/cardano/testnet/00_common.sh
+++ b/cardano/testnet/00_common.sh
@@ -1534,6 +1534,142 @@ queryLight_UTXO() { #${1} = address to query
 	unset utxoRet response responseCode responseJSON addr error errorcnt
 
 }
+# Return authoritative reference-script sizes for an exact JSON array of transaction inputs.
+queryReferenceScriptSizes() {
+	local requested="${1}"
+	local ids id result="{}" response responseJSON responseCode size sizeJSON rows
+	local -a queryArgs
+
+	if ! ids=$(jq -ce 'if type != "array" or any(.[]; type != "string" or (test("^[0-9a-fA-F]{64}#[0-9]+$") | not)) or length != (unique | length) then error("invalid input list") else . end' <<< "${requested}" 2>/dev/null); then
+		echo "ERROR - Invalid reference-script input list." >&2
+		return 1
+	fi
+	if [[ "$(jq length <<< "${ids}")" -eq 0 ]]; then printf '{}'; return 0; fi
+
+	case ${workMode} in
+		"online")
+			queryArgs=()
+			while IFS= read -r id; do queryArgs+=(--tx-in "${id}"); done < <(jq -r '.[]' <<< "${ids}")
+			response=$(${cardanocli} ${cliEra} query utxo --output-json "${queryArgs[@]}" 2>&1)
+			if [[ $? -ne 0 ]] || ! jq -e --argjson ids "${ids}" '
+				. as $utxos | type == "object" and
+				(keys | sort) == ($ids | sort) and
+				all($ids[]; . as $id | $utxos[$id] | type == "object" and has("referenceScript"))
+			' >/dev/null 2>&1 <<< "${response}"; then
+				echo "ERROR - Could not obtain complete reference-script information from cardano-cli." >&2
+				return 1
+			fi
+			while IFS= read -r id; do
+				if [[ "$(jq -r --arg id "${id}" '.[$id].referenceScript == null' <<< "${response}")" == "true" ]]; then
+					result=$(jq -c --arg id "${id}" '. + {($id): null}' <<< "${result}")
+				else
+					size=$(${cardanocli} ${cliEra} query ref-script-size --output-json --tx-in "${id}" 2>&1)
+					if [[ $? -ne 0 ]] || ! size=$(jq -er '.refInputScriptSize | select(type == "number" and . >= 0 and floor == .)' <<< "${size}" 2>/dev/null); then
+						echo "ERROR - Could not determine the reference-script size for '${id}'." >&2
+						return 1
+					fi
+					result=$(jq -c --arg id "${id}" --argjson size "${size}" '. + {($id): $size}' <<< "${result}")
+				fi
+			done < <(jq -r '.[]' <<< "${ids}")
+			;;
+
+		"light")
+			local errorcnt=0 error=-1
+			while [[ ${errorcnt} -lt 5 && ${error} -ne 0 ]]; do
+				error=0
+				response=$(curl -sL -m 120 -X POST -w "---spo-scripts---%{http_code}" "${koiosAPI}/utxo_info?select=tx_hash,tx_index,is_spent,reference_script->hash,reference_script->size" -H "${koiosAuthorizationHeader}" -H "Accept: application/json" -H "Content-Type: application/json" -d "$(jq -cn --argjson ids "${ids}" '{_utxo_refs:$ids,_extended:true}')" 2>/dev/null)
+				if [[ $? -ne 0 ]]; then error=1; fi
+				errorcnt=$((errorcnt + 1))
+			done
+			if [[ ${error} -ne 0 || ! "${response}" =~ (.*)---spo-scripts---([0-9]+)$ ]]; then
+				echo "ERROR - Query of the Koios-API via curl failed." >&2
+				return 1
+			fi
+			responseJSON="${BASH_REMATCH[1]}"; responseCode="${BASH_REMATCH[2]}"
+			if [[ "${responseCode}" != "200" ]]; then echo "ERROR - Koios HTTP response code: ${responseCode}" >&2; return 1; fi
+			if ! rows=$(jq -ce --argjson ids "${ids}" '
+				if type != "array" then error("not an array") else
+					map(. + {id:(.tx_hash + "#" + (.tx_index | tostring))}) |
+					if length != ($ids | length) or (map(.id) | sort) != ($ids | sort) or (map(.id) | unique | length) != length or
+					   any(.[]; .is_spent != false or (has("hash") | not) or (has("size") | not) or
+					       (((.hash == null and .size == null) or
+					         ((.hash | type) == "string" and (.hash | test("^[0-9a-fA-F]{56}$")) and
+					          (.size | type) == "number" and .size >= 0 and (.size | floor) == .size)) | not))
+					then error("incomplete response") else . end
+				end
+			' <<< "${responseJSON}" 2>/dev/null); then
+				echo "ERROR - Koios returned incomplete or invalid reference-script information." >&2
+				return 1
+			fi
+			result=$(jq -c 'map({key:.id, value:(if .hash == null then null else .size end)}) | from_entries' <<< "${rows}")
+			;;
+
+		"offline")
+			if ! jq -e 'type == "object"' >/dev/null 2>&1 <<< "${offlineJSON:-}"; then readOfflineFile; fi
+			while IFS= read -r id; do
+				if ! sizeJSON=$(jq -ce --arg id "${id}" '
+					[.address[]? | select((.utxoJSON | type) == "object" and (.utxoJSON | has($id))) |
+					 if (.referenceScriptSizes | type) == "object" and (.referenceScriptSizes | has($id))
+					 then .referenceScriptSizes[$id] else "__missing__" end] as $matches |
+					if ($matches | length) != 1 or $matches[0] == "__missing__" or
+					   (($matches[0] == null) | not) and (($matches[0] | type) != "number" or $matches[0] < 0 or ($matches[0] | floor) != $matches[0])
+					then error("missing or conflicting metadata") else [$matches[0]] end
+				' <<< "${offlineJSON}" 2>/dev/null); then
+					echo "Reference-script information is missing; refresh the payment address with 01_workOffline.sh add on the online/light machine and transfer the capture again." >&2
+					return 1
+				fi
+				size=$(jq -c '.[0]' <<< "${sizeJSON}")
+				result=$(jq -c --arg id "${id}" --argjson size "${size}" '. + {($id): $size}' <<< "${result}")
+			done < <(jq -r '.[]' <<< "${ids}")
+			;;
+
+		*) echo "ERROR - Unknown workMode '${workMode}'." >&2; return 1;;
+	esac
+
+	printf '%s' "${result}"
+}
+
+# Inspect the real transaction body, set referenceScriptSize, and warn about script-bearing inputs.
+prepareReferenceScriptSpend() {
+	local txFile="${1}" view ids sizes feeIds spending collateralOnly
+	unset referenceScriptSize
+
+	view=$(${cardanocli} debug transaction view --output-json --tx-file "${txFile}" 2>&1)
+	if [[ $? -ne 0 ]] || ! jq -e '
+		type == "object" and
+		has("inputs") and has("reference inputs") and has("collateral inputs") and
+		([.inputs, ."reference inputs", ."collateral inputs"] | all(.[]; type == "array" and all(.[]; type == "string")))
+	' >/dev/null 2>&1 <<< "${view}"; then
+		echo "ERROR - Could not inspect transaction inputs in '${txFile}'." >&2
+		return 1
+	fi
+
+	ids=$(jq -c '[.inputs[], ."reference inputs"[], ."collateral inputs"[]] | unique' <<< "${view}")
+	sizes=$(queryReferenceScriptSizes "${ids}") || return 1
+	feeIds=$(jq -c '[.inputs[], ."reference inputs"[]] | unique' <<< "${view}")
+	if ! referenceScriptSize=$(jq -er --argjson ids "${feeIds}" --argjson sizes "${sizes}" '$ids | map($sizes[.] // 0) | add // 0 | select(type == "number" and . >= 0 and floor == .)' <<< '{}'); then
+		unset referenceScriptSize
+		echo "ERROR - Invalid reference-script fee total." >&2
+		return 1
+	fi
+
+	spending=$(jq -r --argjson sizes "${sizes}" '.inputs[] | select($sizes[.] != null) | "\(.) (\($sizes[.]) bytes)"' <<< "${view}")
+	if [[ -n "${spending}" ]]; then
+		echo "WARNING: This transaction spends reference-script UTxOs. Their existing reference locations will disappear; sending ADA back does not preserve the scripts. Applications using these UTxOs may stop working." >&2
+		while IFS= read -r id; do echo "  ${id}" >&2; done <<< "${spending}"
+	fi
+
+	collateralOnly=$(jq -r --argjson sizes "${sizes}" '
+		([.inputs[], ."reference inputs"[]] | unique) as $fee |
+		."collateral inputs"[] as $id | select(($fee | index($id)) == null and $sizes[$id] != null) |
+		"\($id) (\($sizes[$id]) bytes)"
+	' <<< "${view}")
+	if [[ -n "${collateralOnly}" ]]; then
+		echo "WARNING: These collateral reference-script UTxOs may be consumed if phase-2 validation fails:" >&2
+		while IFS= read -r id; do echo "  ${id}" >&2; done <<< "${collateralOnly}"
+	fi
+	return 0
+}
 #-------------------------------------------------------
 
 
diff --git a/cardano/testnet/01_claimRewards.sh b/cardano/testnet/01_claimRewards.sh
index e0cf837..3ea4cc0 100755
--- a/cardano/testnet/01_claimRewards.sh
+++ b/cardano/testnet/01_claimRewards.sh
@@ -616,8 +616,10 @@ if [[ ${rxcnt} == 1 ]]; then
 			checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -766,6 +768,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed rewards withdrawal from '${stakeAddr}' to '${toAddr}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -773,7 +776,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/01_sendAssets.sh b/cardano/testnet/01_sendAssets.sh
index 42d5115..041a6fd 100755
--- a/cardano/testnet/01_sendAssets.sh
+++ b/cardano/testnet/01_sendAssets.sh
@@ -676,8 +676,10 @@ dummyReturnAmount=$(( ${totalLovelaces} - ${lovelacesToSend} ))
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${lovelacesToSend}${assetsSendString}" --tx-out "${sendFromAddr}+${dummyReturnAmount}${assetsReturnString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -824,6 +826,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"generated and signed utxo-token-transaction from '${fromAddr}' to '${toAddr}'\" } ]" <<< ${offlineJSON})
@@ -831,7 +834,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/01_sendLovelaces.sh b/cardano/testnet/01_sendLovelaces.sh
index 8f4df2a..93c5d97 100755
--- a/cardano/testnet/01_sendLovelaces.sh
+++ b/cardano/testnet/01_sendLovelaces.sh
@@ -473,8 +473,10 @@ if [[ ${rxcnt} == 1 ]]; then  #Sending ALLFUNDS or sending ALL lovelaces and no
 			checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -691,6 +693,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
 									sendFromAddr: \"${sendFromAddr}\",
 									toAddr: \"${toAddr}\",
 									sendToAddr: \"${sendToAddr}\",
+									referenceScriptSize: ${referenceScriptSize},
 									txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
 				#Write the new offileFile content
 				offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed utxo-transaction from '${fromAddr}' to '${toAddr}'\" } ]" <<< ${offlineJSON})
@@ -698,7 +701,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
 				echo "${offlineJSON}" > ${offlineFile}
 				#Readback the tx content and compare it to the current one
 				readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-				if [[ "${txFileJSON}" == "${readback}" ]]; then
+				readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+				if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/01_workOffline.sh b/cardano/testnet/01_workOffline.sh
index 328a598..864df25 100755
--- a/cardano/testnet/01_workOffline.sh
+++ b/cardano/testnet/01_workOffline.sh
@@ -300,6 +300,8 @@ if [[ ${typeOfAddr} == ${addrTypePayment} ]]; then  #Enterprise and Base UTXO ad
 
         utxoEntryCnt=$(jq length <<< ${utxoJSON})
         if [[ ${utxoEntryCnt} == 0 ]]; then echo -e "\e[35mNo funds on the Address!\e[0m\n"; exit 1; else echo -e "\e[32m${utxoEntryCnt} UTXOs\e[0m found on the Address!"; fi
+        referenceScriptSizes=$(queryReferenceScriptSizes "$(jq -c 'keys' <<< "${utxoJSON}")")
+        if [[ $? -ne 0 ]]; then exit 1; fi
         echo
 
         totalLovelaces=0;       #Init for the Sum
@@ -429,6 +431,7 @@ if [[ ${typeOfAddr} == ${addrTypePayment} ]]; then  #Enterprise and Base UTXO ad
         offlineJSON=$( jq ".address.\"${checkAddr}\" += {used: \"no\" }" <<< ${offlineJSON})
         offlineJSON=$( jq ".address.\"${checkAddr}\" += {type: \"${typeOfAddr}\" }" <<< ${offlineJSON})
         offlineJSON=$( jq ".address.\"${checkAddr}\" += {utxoJSON: ${utxoJSON} }" <<< ${offlineJSON})
+        offlineJSON=$( jq ".address.\"${checkAddr}\".referenceScriptSizes = ${referenceScriptSizes}" <<< ${offlineJSON})
 
         offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"added utxo-info for '${addrName}'\" } ]" <<< ${offlineJSON})
 
@@ -437,8 +440,10 @@ if [[ ${typeOfAddr} == ${addrTypePayment} ]]; then  #Enterprise and Base UTXO ad
 
 	#Readback the content and compare it to the current one
 	utxoJSON=$(jq . <<< ${utxoJSON}) # bring it into the same format
-        readback=$(cat ${offlineFile} | jq -r ".address.\"${checkAddr}\".utxoJSON")
-        if [[ "${utxoJSON}" == "${readback}" ]]; then
+	referenceScriptSizes=$(jq . <<< ${referenceScriptSizes})
+        readback=$(jq -r ".address.\"${checkAddr}\".utxoJSON" < "${offlineFile}")
+        readbackReferenceScriptSizes=$(jq -r ".address.\"${checkAddr}\".referenceScriptSizes" < "${offlineFile}")
+        if [[ "${utxoJSON}" == "${readback}" && "${referenceScriptSizes}" == "${readbackReferenceScriptSizes}" ]]; then
 							showOfflineFileInfo;
 							echo -e "\e[33mLatest Information about this address was added to the '$(basename ${offlineFile})'.\nYou can now transfer it to your offline machine to work with it, or you can\nadd another address information to the file by re-running this script.\e[0m\n";
 						 else
@@ -671,6 +676,16 @@ txFile="${tempDir}/$(basename ${transactionFromName}).tmp.txfile"
 rm ${txFile} 2> /dev/null #delete an old one if present
 echo "${transactionTxJSON}" > ${txFile};
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
+# Re-resolve fee-critical input metadata before any queued transaction can be submitted.
+prepareReferenceScriptSpend "$txFile" || exit 1
+recordedReferenceScriptSize=$(jq -c ".transactions[${transactionIdx}] | if has(\"referenceScriptSize\") then .referenceScriptSize else \"missing\" end" <<< "${offlineJSON}")
+if ! jq -e --argjson resolved "${referenceScriptSize}" '
+	(type == "number" and . >= 0 and floor == . and . == $resolved) or
+	(. == "missing" and $resolved == 0)
+' >/dev/null 2>&1 <<< "${recordedReferenceScriptSize}"; then
+	echo -e "\e[35mReference-script fee information is missing or mismatched; rebuild and re-sign this transaction with the updated scripts.\e[0m" >&2
+	exit 1
+fi
 
 case ${transactionType} in
 
diff --git a/cardano/testnet/03b_regStakingAddrCert.sh b/cardano/testnet/03b_regStakingAddrCert.sh
index b5ebbac..8bf1419 100755
--- a/cardano/testnet/03b_regStakingAddrCert.sh
+++ b/cardano/testnet/03b_regStakingAddrCert.sh
@@ -552,8 +552,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${stakeAddr}.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -705,6 +707,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed staking key registration transaction for '${stakeAddr}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -712,7 +715,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/05c_regStakepoolCert.sh b/cardano/testnet/05c_regStakepoolCert.sh
index 072e911..77589c9 100755
--- a/cardano/testnet/05c_regStakepoolCert.sh
+++ b/cardano/testnet/05c_regStakepoolCert.sh
@@ -175,10 +175,12 @@ poolJSON=$(cat ${poolFile}.pool.json)	#Read PoolJSON File into poolJSON variable
 #Check if there is already an opened witness in the poolJSON, if not create a new one with the current utctime in seconds as id
 regWitnessID=$(jq -r .regWitness.id <<< ${poolJSON} 2> /dev/null);
 if [[ "${regWitnessID}" == null || "${regWitnessID}" == 0 ]]; then #Opening up a new witness in the poolJSON
+	newWitnessCollection=true
 	regWitnessID=""; #used later to determine if it is a new witnesscollection or an existing one
 	poolJSON=$(jq ".regWitness = { id: $(date +%s), type: \"\", ttl: 0, regPayName: \"\", txBody: {}, witnesses: {} }" <<< ${poolJSON})
 	#Write the opened Witness only if the txBody was created successfully
 	else
+	newWitnessCollection=false
 	regWitnessDate=$(date --date="@${regWitnessID}") #Get date of the already existing witnesscollection
 fi
 
@@ -658,8 +660,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} ${registrationCerts} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count ${witnessCount} --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count ${witnessCount} --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -724,6 +728,7 @@ echo
 
 poolJSON=$(jq ".regWitness.ttl = ${ttl}" <<< ${poolJSON})
 poolJSON=$(jq ".regWitness.txBody = $(cat ${txBodyFile})" <<< ${poolJSON})
+poolJSON=$(jq ".regWitness.referenceScriptSize = ${referenceScriptSize}" <<< ${poolJSON})
 poolJSON=$(jq ".regWitness.regPayName = \"${regPayName}\"" <<< ${poolJSON})
 poolJSON=$(jq ".regWitness.regPayAmount = ${minRegistrationFees}" <<< ${poolJSON})
 poolJSON=$(jq ".regWitness.regPayReturn = ${lovelacesToSend}" <<< ${poolJSON})
@@ -901,6 +906,19 @@ regWitnessID=$(jq -r ".regWitness.id" <<< ${poolJSON})
 regWitnessDate=$(date --date="@${regWitnessID}" -R)
 regWitnessType=$(jq -r ".regWitness.type" <<< ${poolJSON})
 regWitnessTxBody=$(jq -r ".regWitness.txBody" <<< ${poolJSON})
+txBodyFile="${tempDir}/$(basename ${poolName}).txbody"
+echo "${regWitnessTxBody}" > "${txBodyFile}"
+if ! ${newWitnessCollection}; then
+	prepareReferenceScriptSpend "${txBodyFile}" || exit 1
+	storedReferenceScriptSize=$(jq -c '.regWitness | if has("referenceScriptSize") then .referenceScriptSize else "missing" end' <<< "${poolJSON}")
+	if ! jq -e --argjson resolved "${referenceScriptSize}" '
+		(type == "number" and . >= 0 and floor == . and . == $resolved) or
+		(. == "missing" and $resolved == 0)
+	' >/dev/null 2>&1 <<< "${storedReferenceScriptSize}"; then
+		echo -e "\e[35mReference-script fee information is missing or mismatched. Run 05d_poolWitness.sh clear ${poolFile} and rebuild this transaction.\e[0m" >&2
+		exit 1
+	fi
+fi
 regWitnessHardwareWalletIncluded=$(jq -r ".regWitness.hardwareWalletIncluded" <<< ${poolJSON})
 regWitnessPayAmount=$(jq -r ".regWitness.regPayAmount" <<< ${poolJSON})
 regWitnessPayReturn=$(jq -r ".regWitness.regPayReturn" <<< ${poolJSON})
@@ -986,8 +1004,6 @@ fi
 #
 
 txFile="${tempDir}/$(basename ${poolName}).tx"
-txBodyFile="${tempDir}/$(basename ${poolName}).txbody"
-echo "${regWitnessTxBody}" > ${txBodyFile}
 
 echo -e "\e[0mAssemble the Transaction with the payment \e[32m${regPayName}.skey\e[0m, node\e[32m ${poolName}.node.skey/hwsfile\e[0m and all PoolOwner Witnesses: \e[32m ${txFile} \e[90m"
 echo
@@ -1132,6 +1148,7 @@ if ask "\e[33mDoes this look good for you? Do you have enough pledge in your own
 									regProtectionKey: \"${regProtectionKey}\",
 									poolMetaUrl: \"${poolMetaUrl}\",
 									poolMetaHash: \"${poolMetaHash}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed pool registration transaction for '${poolMetaTicker}', payment via '${regPayName}'\" } ]" <<< ${offlineJSON})
@@ -1160,7 +1177,8 @@ if ask "\e[33mDoes this look good for you? Do you have enough pledge in your own
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
 							echo
 							echo -e "\e[0mStakepool Info JSON:\e[32m ${poolFile}.pool.json \e[90m"
 							cat ${poolFile}.pool.json
diff --git a/cardano/testnet/05d_poolWitness.sh b/cardano/testnet/05d_poolWitness.sh
index 2df93a9..03f364b 100755
--- a/cardano/testnet/05d_poolWitness.sh
+++ b/cardano/testnet/05d_poolWitness.sh
@@ -403,6 +403,7 @@ case ${action} in
 		rm ${tmpWitnessTxBody} 2> /dev/null
 		rm ${tmpWitnessFile} 2> /dev/null
 		echo "${witnessTxBody}" > ${tmpWitnessTxBody}
+		prepareReferenceScriptSpend "${tmpWitnessTxBody}" || exit 1
 
 
 		#Sign via normal cli skey or hardware key, depends on the content of the vkey description
diff --git a/cardano/testnet/06_regDelegationCert.sh b/cardano/testnet/06_regDelegationCert.sh
index 1349741..ac8d82b 100755
--- a/cardano/testnet/06_regDelegationCert.sh
+++ b/cardano/testnet/06_regDelegationCert.sh
@@ -550,8 +550,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${delegName}.deleg.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -697,6 +699,7 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${regPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed delegation cert registration transaction for '${delegName}', payment via '${regPayName}'\" } ]" <<< ${offlineJSON})
@@ -704,7 +707,8 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/07b_deregStakepoolCert.sh b/cardano/testnet/07b_deregStakepoolCert.sh
index ac68fba..9073b4b 100755
--- a/cardano/testnet/07b_deregStakepoolCert.sh
+++ b/cardano/testnet/07b_deregStakepoolCert.sh
@@ -402,8 +402,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${deregCertFile} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -570,6 +572,7 @@ if ask "\e[33mDoes this look good for you? Continue ?" N; then
                                                                         toAddr: \"${deregPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
                                                                         poolMetaTicker: \"${poolMetaTicker}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed pool retirement transaction for '${poolMetaTicker}', payment via '${deregPayName}'\" } ]" <<< ${offlineJSON})
@@ -577,7 +580,8 @@ if ask "\e[33mDoes this look good for you? Continue ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         file_unlock ${poolFile}.pool.json
                                                         newJSON=$(cat ${poolFile}.pool.json | jq ". += {deregSubmitted: \"$(date -R) (only offline, no proof)\"}")
                                                         echo "${newJSON}" > ${poolFile}.pool.json
diff --git a/cardano/testnet/08b_deregStakingAddrCert.sh b/cardano/testnet/08b_deregStakingAddrCert.sh
index 834aa8a..ffda588 100755
--- a/cardano/testnet/08b_deregStakingAddrCert.sh
+++ b/cardano/testnet/08b_deregStakingAddrCert.sh
@@ -536,8 +536,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${stakeAddr}.dereg-cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -691,6 +693,7 @@ if ask "\e[33mDoes this look good for you, continue ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed staking key deregistration transaction for '${stakeAddr}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -698,7 +701,8 @@ if ask "\e[33mDoes this look good for you, continue ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/11a_mintAsset.sh b/cardano/testnet/11a_mintAsset.sh
index 2b7dee5..c432548 100755
--- a/cardano/testnet/11a_mintAsset.sh
+++ b/cardano/testnet/11a_mintAsset.sh
@@ -400,8 +400,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --mint "${assetMintAmount} ${policyID}${point}${assetMintName}" --minting-script-file ${policyName}.policy.script --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -666,6 +668,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"minted ${assetMintAmount} '${assetMintInputName}' on '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -673,7 +676,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
 
 			                                #Updating the ${policyName}.${assetMintInputName}.asset json
 			                                assetFileName="${policyName}.${assetMintInputName}.asset"
diff --git a/cardano/testnet/11b_burnAsset.sh b/cardano/testnet/11b_burnAsset.sh
index c90a640..edce97b 100755
--- a/cardano/testnet/11b_burnAsset.sh
+++ b/cardano/testnet/11b_burnAsset.sh
@@ -397,8 +397,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --mint "-${assetBurnAmount} ${policyID}${point}${assetBurnName}" --minting-script-file ${policyName}.policy.script --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -667,6 +669,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\e[33mDoes this look good for you,
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"burned ${assetBurnAmount} '${assetBurnInputName}' on '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -674,7 +677,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\e[33mDoes this look good for you,
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
 
 
 			                                #Updating the ${policyName}.${assetBurnName}.asset json
diff --git a/cardano/testnet/13b_sendSpoPoll.sh b/cardano/testnet/13b_sendSpoPoll.sh
index 5d66966..f7e04aa 100755
--- a/cardano/testnet/13b_sendSpoPoll.sh
+++ b/cardano/testnet/13b_sendSpoPoll.sh
@@ -483,9 +483,12 @@ if [[ ${rxcnt} == 1 ]]; then  #Sending ALLFUNDS or sending ALL lovelaces and no
 			checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #cardano-cli with new few calculation since cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 | awk '{ print $1 }')
-checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
+if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
+fee=${fee%% *}
 
 echo -e "\e[0mMinimum Transaction Fee for ${txcnt}x TxIn & ${rxcnt}x TxOut: \e[32m $(convertToADA ${fee}) ADA / ${fee} lovelaces \e[90m"
 echo
@@ -697,6 +700,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${toAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed utxo-transaction from '${fromAddr}' to '${toAddr}'\" } ]" <<< ${offlineJSON})
@@ -704,7 +708,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/21b_regDRepCert.sh b/cardano/testnet/21b_regDRepCert.sh
index 7fcab96..2b0547a 100755
--- a/cardano/testnet/21b_regDRepCert.sh
+++ b/cardano/testnet/21b_regDRepCert.sh
@@ -570,8 +570,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${drepName}.drep-reg.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -821,6 +823,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed drep-id registration transaction for '${drepName}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -828,7 +831,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/21d_retDRepCert.sh b/cardano/testnet/21d_retDRepCert.sh
index 2d00620..a6d2a87 100755
--- a/cardano/testnet/21d_retDRepCert.sh
+++ b/cardano/testnet/21d_retDRepCert.sh
@@ -448,8 +448,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${drepName}.drep-ret.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -698,6 +700,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed drep-id retirement transaction for '${drepName}', payment via '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -705,7 +708,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/22b_regVoteDelegCert.sh b/cardano/testnet/22b_regVoteDelegCert.sh
index fa84a57..920d619 100755
--- a/cardano/testnet/22b_regVoteDelegCert.sh
+++ b/cardano/testnet/22b_regVoteDelegCert.sh
@@ -546,8 +546,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${delegName}.vote-deleg.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -694,6 +696,7 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${regPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed vote-delegation cert registration transaction for '${delegName}', payment via '${regPayName}'\" } ]" <<< ${offlineJSON})
@@ -701,7 +704,8 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/23c_regComAuthCert.sh b/cardano/testnet/23c_regComAuthCert.sh
index f6caf85..cbca4fb 100755
--- a/cardano/testnet/23c_regComAuthCert.sh
+++ b/cardano/testnet/23c_regComAuthCert.sh
@@ -493,8 +493,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${comHotName}.cc-hot.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -647,6 +649,7 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${regPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed committee authorization cert registration transaction for '${comColdName}/${comHotName}', payment via '${regPayName}'\" } ]" <<< ${offlineJSON})
@@ -654,7 +657,8 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/23e_retComColdKeys.sh b/cardano/testnet/23e_retComColdKeys.sh
index 46f5b95..60eb043 100755
--- a/cardano/testnet/23e_retComColdKeys.sh
+++ b/cardano/testnet/23e_retComColdKeys.sh
@@ -554,8 +554,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} --certificate ${comColdName}.cc-cold-ret.cert --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -707,6 +709,7 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${retPayName}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed committee authorization cert registration transaction for '${comColdName}/${comHotName}', payment via '${retPayName}'\" } ]" <<< ${offlineJSON})
@@ -714,7 +717,8 @@ if ask "\e[33mDoes this look good for you ?" N; then
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/24b_regVote.sh b/cardano/testnet/24b_regVote.sh
index 6bdfe80..9a5d987 100755
--- a/cardano/testnet/24b_regVote.sh
+++ b/cardano/testnet/24b_regVote.sh
@@ -549,8 +549,10 @@ rm ${txBodyFile} 2> /dev/null
 ${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} ${votefileParameter} --out-file ${txBodyFile}
 checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 #calculate the transaction fee. new parameters since cardano-cli 8.21.0
-fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size 0 2> /dev/stdout)
+fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 2 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 
@@ -763,6 +765,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed utxo-transaction from '${fromAddr}' to '${toAddr}'\" } ]" <<< ${offlineJSON})
@@ -770,7 +773,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/25b_regAction.sh b/cardano/testnet/25b_regAction.sh
index 6ee0dbf..8af4cc3 100755
--- a/cardano/testnet/25b_regAction.sh
+++ b/cardano/testnet/25b_regAction.sh
@@ -745,12 +745,14 @@ case "${voteActionTag,,}" in
                         --fee 200000 ${metafileParameter} ${actionfileParameter} --out-file ${txBodyFile} 2> /dev/stdout
 		checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
+		prepareReferenceScriptSpend "$txBodyFile" || exit 1
+
 		#calculate the transaction fee. new parameters since cardano-cli 8.21.0
 		fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text \
 			--tx-body-file ${txBodyFile} \
 			--protocol-params-file <(echo ${protocolParametersJSON}) \
 			--witness-count 2 \
-			--reference-script-size 0 2> /dev/stdout)
+			--reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 		checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
 
 		if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
@@ -763,8 +765,9 @@ case "${voteActionTag,,}" in
 		#Generate Dummy-TxBody file for fee calculation
 		${cardanocli} ${cliEra} transaction build-raw ${txInString} --tx-out "${sendToAddr}+${totalLovelaces}${assetsOutString}" --invalid-hereafter ${ttl} --fee 200000 ${metafileParameter} ${actionfileParameter} --out-file ${txBodyFile}
 		checkError "$?"; if [ $? -ne 0 ]; then exit $?; fi
+		prepareReferenceScriptSpend "$txBodyFile" || exit 1
 		#calculate the transaction fee. new parameters since cardano-cli 8.21.0
-		fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size 0 2> /dev/stdout)
+		fee=$(${cardanocli} ${cliEra} transaction calculate-min-fee --output-text --tx-body-file ${txBodyFile} --protocol-params-file <(echo ${protocolParametersJSON}) --witness-count 1 --reference-script-size "${referenceScriptSize}" 2> /dev/stdout)
 		if [ $? -ne 0 ]; then echo -e "\n\e[35m${fee}\e[0m\n"; exit 1; fi
 		fee=${fee%% *} #only get the first part of 'xxxxxx Lovelaces'
 		echo -e "\e[0mMimimum transfer Fee for ${txcnt}x TxIn & ${rxcnt}x TxOut: \e[32m $(convertToADA ${fee}) ADA / ${fee} lovelaces \e[90m"
@@ -958,6 +961,7 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                                                         sendFromAddr: \"${sendFromAddr}\",
                                                                         toAddr: \"${fromAddr}\",
                                                                         sendToAddr: \"${sendToAddr}\",
+                                                                        referenceScriptSize: ${referenceScriptSize},
                                                                         txJSON: ${txFileJSON} } ]" <<< ${offlineJSON})
                                 #Write the new offileFile content
                                 offlineJSON=$( jq ".history += [ { date: \"$(date -R)\", action: \"signed utxo-transaction from '${fromAddr}' to '${fromAddr}'\" } ]" <<< ${offlineJSON})
@@ -965,7 +969,8 @@ if [ "${ENV_SKIP_PROMPT}" == "YES" ] || ask "\n\e[33mDoes this look good for you
                                 echo "${offlineJSON}" > ${offlineFile}
                                 #Readback the tx content and compare it to the current one
                                 readback=$(cat ${offlineFile} | jq -r ".transactions[-1].txJSON")
-                                if [[ "${txFileJSON}" == "${readback}" ]]; then
+                                readbackReferenceScriptSize=$(cat ${offlineFile} | jq -r ".transactions[-1].referenceScriptSize")
+                                if [[ "${txFileJSON}" == "${readback}" && "${referenceScriptSize}" == "${readbackReferenceScriptSize}" ]]; then
                                                         showOfflineFileInfo;
                                                         echo -e "\e[33mTransaction txJSON has been stored in the '$(basename ${offlineFile})'.\nYou can now transfer it to your online machine for execution.\e[0m\n";
                                                  else
diff --git a/cardano/testnet/README.md b/cardano/testnet/README.md
index be63531..3caa9fd 100644
--- a/cardano/testnet/README.md
+++ b/cardano/testnet/README.md
@@ -291,6 +291,10 @@ Checkout the configuration parameters in your 00_common.sh Main-Configuration fi
 
   The scripts uses per default (configurable) the file **offlineTransfer.json** to store the data in between the Machines.
 
+Offline address captures include reference-script sizes used for fee calculation. Refresh each payment address with `./01_workOffline.sh add <wallet>` before building or signing if the capture was created by an older script version.
+
+Transactions that spend UTxOs carrying reference scripts print a warning. Sending the ADA back to the same address does not recreate those scripts; applications using the spent reference locations may stop working.
+
 &nbsp;<br>
 </details>