diff --git a/config/config.go b/config/config.go
index f707ac2..5aa01ae 100644
--- a/config/config.go
+++ b/config/config.go
@@ -3,6 +3,10 @@ package config
 import (
 	"encoding/json"
 	"sync"
+
+	"github.com/planetmint/planetmint-go/lib"
+	"github.com/planetmint/planetmint-go/lib/trustwallet"
+	"github.com/rddl-network/go-utils/logger"
 )
 
 const DefaultConfigTemplate = `
@@ -11,7 +15,7 @@ const DefaultConfigTemplate = `
 ###############################################################################
 
 [planetmint]
-validator-address = "{{ .PlmntConfig.ValidatorAddress }}"
+validator-address = "{{ .PlmntConfig.validatorAddress }}"
 mqtt-domain = "{{ .PlmntConfig.MqttDomain }}"
 mqtt-port = {{ .PlmntConfig.MqttPort }}
 mqtt-user = "{{ .PlmntConfig.MqttUser }}"
@@ -24,7 +28,6 @@ certs-path = "{{ .PlmntConfig.CertsPath }}"
 
 // Config defines Planetmint's top level configuration
 type Config struct {
-	ValidatorAddress string `json:"validator-address" mapstructure:"validator-address"`
 	MqttDomain       string `json:"mqtt-domain"       mapstructure:"mqtt-domain"`
 	MqttPort         int    `json:"mqtt-port"         mapstructure:"mqtt-port"`
 	MqttUser         string `json:"mqtt-user"         mapstructure:"mqtt-user"`
@@ -33,6 +36,7 @@ type Config struct {
 	MqttTLS          bool   `json:"mqtt-tls"          mapstructure:"mqtt-tls"`
 	IssuerHost       string `json:"issuer-host"       mapstructure:"issuer-host"`
 	CertsPath        string `json:"certs-path"        mapstructure:"certs-path"`
+	validatorAddress string `json:"validator-address"        mapstructure:"validator-address"`
 }
 
 // cosmos-sdk wide global singleton
@@ -44,7 +48,6 @@ var (
 // DefaultConfig returns planetmint's default configuration.
 func DefaultConfig() *Config {
 	return &Config{
-		ValidatorAddress: "plmnt1w5dww335zhh98pzv783hqre355ck3u4w4hjxcx",
 		MqttDomain:       "testnet-mqtt.rddl.io",
 		MqttPort:         1886,
 		MqttUser:         "user",
@@ -53,6 +56,7 @@ func DefaultConfig() *Config {
 		MqttTLS:          true,
 		IssuerHost:       "https://testnet-issuer.rddl.io",
 		CertsPath:        "./certs/",
+		validatorAddress: "plmnt1w5dww335zhh98pzv783hqre355ck3u4w4hjxcx",
 	}
 }
 
@@ -75,3 +79,29 @@ func (config *Config) SetPlanetmintConfig(planetmintconfig interface{}) {
 		panic(err)
 	}
 }
+
+func (config *Config) SetValidatorAddress(validatorAddress string) *Config {
+	config.validatorAddress = validatorAddress
+	return config
+}
+
+func (config *Config) GetValidatorAddress() string {
+	libConfig := lib.GetConfig()
+	if libConfig.GetSerialPort() == "" {
+		return config.validatorAddress
+	}
+
+	connector, err := trustwallet.NewTrustWalletConnector(libConfig.GetSerialPort())
+	if err != nil {
+		logger.GetLogger(logger.ERROR).Error("msg", err.Error())
+		return ""
+	}
+
+	keys, err := connector.GetPlanetmintKeys()
+	if err != nil {
+		logger.GetLogger(logger.ERROR).Error("msg", err.Error())
+		return ""
+	}
+
+	return keys.PlanetmintAddress
+}
diff --git a/lib/config.go b/lib/config.go
index 9898fcb..bf9f845 100644
--- a/lib/config.go
+++ b/lib/config.go
@@ -125,3 +125,7 @@ func (config *Config) SetSerialPort(port string) *Config {
 	config.serialPort = port
 	return config
 }
+
+func (config *Config) GetSerialPort() string {
+	return config.serialPort
+}
diff --git a/monitor/mqtt_monitor.go b/monitor/mqtt_monitor.go
index 23023f2..92a7fd7 100644
--- a/monitor/mqtt_monitor.go
+++ b/monitor/mqtt_monitor.go
@@ -68,7 +68,7 @@ func (mms *MqttMonitor) setNumDBElements(numElements int64) {
 
 func getClientID() string {
 	conf := config.GetConfig()
-	return "monitor-" + conf.ValidatorAddress
+	return "monitor-" + conf.GetValidatorAddress()
 }
 
 func (mms *MqttMonitor) lazyLoadMonitorMQTTClient() util.MQTTClientI {
diff --git a/testutil/network/network.go b/testutil/network/network.go
index 66abfb4..2c17286 100644
--- a/testutil/network/network.go
+++ b/testutil/network/network.go
@@ -596,7 +596,7 @@ func New(l Logger, baseDir string, cfg Config) (*Network, error) {
 		l.Log("started validator", idx)
 		if idx == 0 {
 			conf := config.GetConfig()
-			conf.ValidatorAddress = network.Validators[0].Address.String()
+			conf.SetValidatorAddress(network.Validators[0].Address.String())
 			// set missing validator client context values for sending txs
 			var output bytes.Buffer
 			network.Validators[0].ClientCtx.BroadcastMode = "sync"
diff --git a/util/issue_commands.go b/util/issue_commands.go
index 89d42a8..0b88920 100644
--- a/util/issue_commands.go
+++ b/util/issue_commands.go
@@ -51,7 +51,7 @@ func buildSignBroadcastTx(goCtx context.Context, loggingContext string, sendingV
 
 func SendInitReissuance(goCtx context.Context, proposerAddress string, txUnsigned string, blockHeight int64,
 	firstIncludedPop int64, lastIncludedPop int64) {
-	sendingValidatorAddress := config.GetConfig().ValidatorAddress
+	sendingValidatorAddress := config.GetConfig().GetValidatorAddress()
 	msg := daotypes.NewMsgReissueRDDLProposal(sendingValidatorAddress, proposerAddress, txUnsigned, blockHeight,
 		firstIncludedPop, lastIncludedPop)
 	loggingContext := "reissuance proposal"
@@ -59,14 +59,14 @@ func SendInitReissuance(goCtx context.Context, proposerAddress string, txUnsigne
 }
 
 func SendReissuanceResult(goCtx context.Context, proposerAddress string, txID string, blockHeight int64) {
-	sendingValidatorAddress := config.GetConfig().ValidatorAddress
+	sendingValidatorAddress := config.GetConfig().GetValidatorAddress()
 	msg := daotypes.NewMsgReissueRDDLResult(sendingValidatorAddress, proposerAddress, txID, blockHeight)
 	loggingContext := "reissuance result"
 	buildSignBroadcastTx(goCtx, loggingContext, sendingValidatorAddress, msg)
 }
 
 func SendDistributionRequest(goCtx context.Context, distribution daotypes.DistributionOrder) {
-	sendingValidatorAddress := config.GetConfig().ValidatorAddress
+	sendingValidatorAddress := config.GetConfig().GetValidatorAddress()
 	msg := daotypes.NewMsgDistributionRequest(sendingValidatorAddress, &distribution)
 	loggingContext := "distribution request"
 	buildSignBroadcastTx(goCtx, loggingContext, sendingValidatorAddress, msg)
@@ -74,35 +74,35 @@ func SendDistributionRequest(goCtx context.Context, distribution daotypes.Distri
 
 func SendDistributionResult(goCtx context.Context, lastPoP int64, daoTxID string, invTxID string,
 	popTxID string, earlyInvestorTxID string, strategicTxID string) {
-	sendingValidatorAddress := config.GetConfig().ValidatorAddress
+	sendingValidatorAddress := config.GetConfig().GetValidatorAddress()
 	msg := daotypes.NewMsgDistributionResult(sendingValidatorAddress, lastPoP, daoTxID, invTxID, popTxID, earlyInvestorTxID, strategicTxID)
 	loggingContext := "distribution result"
 	buildSignBroadcastTx(goCtx, loggingContext, sendingValidatorAddress, msg)
 }
 
 func SendLiquidAssetRegistration(goCtx context.Context, notarizedAsset machinetypes.LiquidAsset) {
-	sendingValidatorAddress := config.GetConfig().ValidatorAddress
+	sendingValidatorAddress := config.GetConfig().GetValidatorAddress()
 	msg := machinetypes.NewMsgNotarizeLiquidAsset(sendingValidatorAddress, &notarizedAsset)
 	loggingContext := "notarize liquid asset"
 	buildSignBroadcastTx(goCtx, loggingContext, sendingValidatorAddress, msg)
 }
 
 func SendInitPoP(goCtx context.Context, proposer string, challenger string, challengee string, blockHeight int64) {
-	sendingValidatorAddress := config.GetConfig().ValidatorAddress
+	sendingValidatorAddress := config.GetConfig().GetValidatorAddress()
 	msg := daotypes.NewMsgInitPop(sendingValidatorAddress, proposer, challenger, challengee, blockHeight)
 	loggingContext := "PoP"
 	buildSignBroadcastTx(goCtx, loggingContext, sendingValidatorAddress, msg)
 }
 
 func SendUpdateRedeemClaim(goCtx context.Context, beneficiary string, id uint64, txID string) {
-	sendingValidatorAddress := config.GetConfig().ValidatorAddress
+	sendingValidatorAddress := config.GetConfig().GetValidatorAddress()
 	msg := daotypes.NewMsgUpdateRedeemClaim(sendingValidatorAddress, beneficiary, txID, id)
 	loggingContext := "redeem claim"
 	buildSignBroadcastTx(goCtx, loggingContext, sendingValidatorAddress, msg)
 }
 
 func SendTokens(goCtx context.Context, beneficiary sdk.AccAddress, amount uint64, denominator string) {
-	sendingValidatorAddress := config.GetConfig().ValidatorAddress
+	sendingValidatorAddress := config.GetConfig().GetValidatorAddress()
 
 	coin := sdk.NewCoin(denominator, sdk.NewIntFromUint64(amount))
 	coins := sdk.NewCoins(coin)
diff --git a/util/mqtt.go b/util/mqtt.go
index 49f7305..35e9af9 100644
--- a/util/mqtt.go
+++ b/util/mqtt.go
@@ -49,7 +49,7 @@ func LazyLoadMQTTClient() {
 	}
 
 	opts := mqtt.NewClientOptions().AddBroker(uri)
-	opts.SetClientID(conf.ValidatorAddress)
+	opts.SetClientID(conf.GetValidatorAddress())
 	opts.SetUsername(conf.MqttUser)
 	opts.SetPassword(conf.MqttPassword)
 	if conf.MqttTLS {