diff --git a/alphabet/alphabet_contract.go b/alphabet/alphabet_contract.go
index b8bdd12..72aebe8 100644
--- a/alphabet/alphabet_contract.go
+++ b/alphabet/alphabet_contract.go
@@ -178,8 +178,7 @@ func Vote(epoch int, candidates []interop.PublicKey) {
 	index := index(ctx)
 	name := name(ctx)
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	curEpoch := currentEpoch(ctx)
 	if epoch != curEpoch {
diff --git a/balance/balance_contract.go b/balance/balance_contract.go
index 8993585..3859c6e 100644
--- a/balance/balance_contract.go
+++ b/balance/balance_contract.go
@@ -144,8 +144,7 @@ func Transfer(from, to interop.Hash160, amount int, data interface{}) bool {
 func TransferX(from, to interop.Hash160, amount int, details []byte) {
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	result := token.transfer(ctx, from, to, amount, true, details)
 	if !result {
@@ -166,8 +165,7 @@ func TransferX(from, to interop.Hash160, amount int, details []byte) {
 func Lock(txDetails []byte, from, to interop.Hash160, amount, until int) {
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	details := common.LockTransferDetails(txDetails)
 
@@ -197,8 +195,7 @@ func Lock(txDetails []byte, from, to interop.Hash160, amount, until int) {
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	it := storage.Find(ctx, []byte{}, storage.KeysOnly)
 	for iterator.Next(it) {
@@ -232,8 +229,7 @@ func NewEpoch(epochNum int) {
 func Mint(to interop.Hash160, amount int, txDetails []byte) {
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	details := common.MintTransferDetails(txDetails)
 
@@ -263,8 +259,7 @@ func Mint(to interop.Hash160, amount int, txDetails []byte) {
 func Burn(from interop.Hash160, amount int, txDetails []byte) {
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	details := common.BurnTransferDetails(txDetails)
 
diff --git a/common/witness.go b/common/witness.go
index 9169b0b..ba2b9c6 100644
--- a/common/witness.go
+++ b/common/witness.go
@@ -16,8 +16,8 @@ var (
 
 // CheckAlphabetWitness checks witness of the passed caller.
 // It panics with ErrAlphabetWitnessFailed message on fail.
-func CheckAlphabetWitness(caller []byte) {
-	checkWitnessWithPanic(caller, ErrAlphabetWitnessFailed)
+func CheckAlphabetWitness() {
+	checkWitnessWithPanic(AlphabetAddress(), ErrAlphabetWitnessFailed)
 }
 
 // CheckOwnerWitness checks witness of the passed caller.
diff --git a/container/container_contract.go b/container/container_contract.go
index 03cb65a..9a600d1 100644
--- a/container/container_contract.go
+++ b/container/container_contract.go
@@ -234,8 +234,7 @@ func PutNamed(container []byte, signature interop.Signature,
 		panic("insufficient balance to create container")
 	}
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 	// todo: check if new container with unique container id
 
 	details := common.ContainerFeeTransferDetails(containerID)
@@ -320,8 +319,7 @@ func Delete(containerID []byte, signature interop.Signature, token []byte) {
 		return
 	}
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	key := append([]byte(nnsHasAliasKey), containerID...)
 	domain := storage.Get(ctx, key).(string)
@@ -433,8 +431,7 @@ func SetEACL(eACL []byte, signature interop.Signature, publicKey interop.PublicK
 		panic(NotFoundError)
 	}
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	rule := ExtendedACL{
 		value: eACL,
@@ -567,8 +564,7 @@ func IterateContainerSizes(epoch int) iterator.Iterator {
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	cleanupContainers(ctx, epochNum)
 }
@@ -576,8 +572,7 @@ func NewEpoch(epochNum int) {
 // StartContainerEstimation method produces StartEstimation notification.
 // It can be invoked only by Alphabet nodes of the Inner Ring.
 func StartContainerEstimation(epoch int) {
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	runtime.Notify("StartEstimation", epoch)
 	runtime.Log("notification has been produced")
@@ -586,8 +581,7 @@ func StartContainerEstimation(epoch int) {
 // StopContainerEstimation method produces StopEstimation notification.
 // It can be invoked only by Alphabet nodes of the Inner Ring.
 func StopContainerEstimation(epoch int) {
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	runtime.Notify("StopEstimation", epoch)
 	runtime.Log("notification has been produced")
diff --git a/frostfs/frostfs_contract.go b/frostfs/frostfs_contract.go
index e7ea5ab..f902d30 100644
--- a/frostfs/frostfs_contract.go
+++ b/frostfs/frostfs_contract.go
@@ -105,7 +105,9 @@ func Update(script []byte, manifest []byte, data interface{}) {
 	alphabetKeys := roles.GetDesignatedByRole(roles.NeoFSAlphabet, uint32(blockHeight+1))
 	alphabetCommittee := common.Multiaddress(alphabetKeys, true)
 
-	common.CheckAlphabetWitness(alphabetCommittee)
+	if !runtime.CheckWitness(alphabetCommittee) {
+		panic(common.ErrAlphabetWitnessFailed)
+	}
 
 	contract.Call(interop.Hash160(management.Hash), "update",
 		contract.All, script, manifest, common.AppendVersion(data))
@@ -265,8 +267,7 @@ func Withdraw(user interop.Hash160, amount int) {
 //
 // This method produces Cheque notification to burn assets in sidechain.
 func Cheque(id []byte, user interop.Hash160, amount int, lockAcc []byte) {
-	multiaddr := AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	from := runtime.GetExecutingScriptHash()
 
@@ -331,8 +332,7 @@ func Config(key []byte) interface{} {
 func SetConfig(id, key, val []byte) {
 	ctx := storage.GetContext()
 
-	multiaddr := AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	setConfig(ctx, key, val)
 
diff --git a/frostfsid/frostfsid_contract.go b/frostfsid/frostfsid_contract.go
index 79fb0d5..58d6fbc 100644
--- a/frostfsid/frostfsid_contract.go
+++ b/frostfsid/frostfsid_contract.go
@@ -86,8 +86,7 @@ func AddKey(owner []byte, keys []interop.PublicKey) {
 
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	ownerKey := append([]byte{ownerKeysPrefix}, owner...)
 	for i := range keys {
diff --git a/netmap/netmap_contract.go b/netmap/netmap_contract.go
index 8601093..150c461 100644
--- a/netmap/netmap_contract.go
+++ b/netmap/netmap_contract.go
@@ -140,7 +140,7 @@ func Update(script []byte, manifest []byte, data interface{}) {
 func AddPeerIR(nodeInfo []byte) {
 	ctx := storage.GetContext()
 
-	common.CheckAlphabetWitness(common.AlphabetAddress())
+	common.CheckAlphabetWitness()
 
 	publicKey := nodeInfo[2:35] // V2 format: offset:2, len:33
 
@@ -213,7 +213,7 @@ func UpdateState(state NodeState, publicKey interop.PublicKey) {
 	ctx := storage.GetContext()
 
 	common.CheckWitness(publicKey)
-	common.CheckAlphabetWitness(common.AlphabetAddress())
+	common.CheckAlphabetWitness()
 
 	updateCandidateState(ctx, publicKey, state)
 }
@@ -227,7 +227,7 @@ func UpdateState(state NodeState, publicKey interop.PublicKey) {
 func UpdateStateIR(state NodeState, publicKey interop.PublicKey) {
 	ctx := storage.GetContext()
 
-	common.CheckAlphabetWitness(common.AlphabetAddress())
+	common.CheckAlphabetWitness()
 
 	updateCandidateState(ctx, publicKey, state)
 }
@@ -244,8 +244,7 @@ func UpdateStateIR(state NodeState, publicKey interop.PublicKey) {
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	currentEpoch := storage.Get(ctx, snapshotEpoch).(int)
 	if epochNum <= currentEpoch {
@@ -343,7 +342,7 @@ func getSnapshotCount(ctx storage.Context) int {
 //
 // Count MUST NOT be negative.
 func UpdateSnapshotCount(count int) {
-	common.CheckAlphabetWitness(common.AlphabetAddress())
+	common.CheckAlphabetWitness()
 	if count < 0 {
 		panic("count must be positive")
 	}
@@ -443,8 +442,7 @@ func Config(key []byte) interface{} {
 func SetConfig(id, key, val []byte) {
 	ctx := storage.GetContext()
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	setConfig(ctx, key, val)
 
diff --git a/subnet/subnet_contract.go b/subnet/subnet_contract.go
index fdd3f74..c7bbd32 100644
--- a/subnet/subnet_contract.go
+++ b/subnet/subnet_contract.go
@@ -88,8 +88,7 @@ func Put(id []byte, ownerKey interop.PublicKey, info []byte) {
 
 	common.CheckOwnerWitness(ownerKey)
 
-	multiaddr := common.AlphabetAddress()
-	common.CheckAlphabetWitness(multiaddr)
+	common.CheckAlphabetWitness()
 
 	storage.Put(ctx, stKey, ownerKey)
 	stKey[0] = infoPrefix