diff --git a/bchain/coins/btc/bitcoinparser.go b/bchain/coins/btc/bitcoinparser.go
index 13e6a048..45f6b17a 100644
--- a/bchain/coins/btc/bitcoinparser.go
+++ b/bchain/coins/btc/bitcoinparser.go
@@ -33,22 +33,14 @@ func GetChainParams(chain string) *chaincfg.Params {
 	return &chaincfg.MainNetParams
 }
 
-func (p *BitcoinBlockParser) GetAddrIDFromVout(output *bchain.Vout) string {
-	return output.ScriptPubKey.Hex
+func (p *BitcoinBlockParser) GetAddrIDFromVout(output *bchain.Vout) ([]byte, error) {
+	return hex.DecodeString(output.ScriptPubKey.Hex)
 }
 
 func (p *BitcoinBlockParser) GetAddrIDFromAddress(address string) ([]byte, error) {
 	return p.AddressToOutputScript(address)
 }
 
-func (p *BitcoinBlockParser) PackAddrID(str string) ([]byte, error) {
-	return hex.DecodeString(str)
-}
-
-func (p *BitcoinBlockParser) UnpackAddrID(buf []byte) string {
-	return hex.EncodeToString(buf)
-}
-
 // AddressToOutputScript converts bitcoin address to ScriptPubKey
 func (p *BitcoinBlockParser) AddressToOutputScript(address string) ([]byte, error) {
 	da, err := btcutil.DecodeAddress(address, p.Params)
diff --git a/bchain/coins/zec/zcashparser.go b/bchain/coins/zec/zcashparser.go
index a2b4e17f..834817db 100644
--- a/bchain/coins/zec/zcashparser.go
+++ b/bchain/coins/zec/zcashparser.go
@@ -26,21 +26,13 @@ func GetChainParams(chain string) *chaincfg.Params {
 	return &chaincfg.MainNetParams
 }
 
-func (p *ZCashBlockParser) GetAddrIDFromVout(output *bchain.Vout) string {
+func (p *ZCashBlockParser) GetAddrIDFromVout(output *bchain.Vout) ([]byte, error) {
 	if len(output.ScriptPubKey.Addresses) != 1 {
-		return ""
+		return nil, nil
 	}
-	return output.ScriptPubKey.Addresses[0]
+	return []byte(output.ScriptPubKey.Addresses[0]), nil
 }
 
 func (p *ZCashBlockParser) GetAddrIDFromAddress(address string) ([]byte, error) {
-	return p.PackAddrID(address)
-}
-
-func (p *ZCashBlockParser) PackAddrID(str string) ([]byte, error) {
-	return []byte(str), nil
-}
-
-func (p *ZCashBlockParser) UnpackAddrID(buf []byte) string {
-	return string(buf)
+	return []byte(address), nil
 }
diff --git a/bchain/types.go b/bchain/types.go
index 6cb999f4..dd8668c7 100644
--- a/bchain/types.go
+++ b/bchain/types.go
@@ -117,10 +117,8 @@ type BlockChainParser interface {
 	// non UTXO chains have mapping of address to input and output transactions directly in "outputs" column in db
 	IsUTXOChain() bool
 	// address id conversions
-	GetAddrIDFromVout(output *Vout) string
+	GetAddrIDFromVout(output *Vout) ([]byte, error)
 	GetAddrIDFromAddress(address string) ([]byte, error)
-	PackAddrID(addrID string) ([]byte, error)
-	UnpackAddrID(buf []byte) string
 	// address to output script conversions
 	AddressToOutputScript(address string) ([]byte, error)
 	OutputScriptToAddresses(script []byte) ([]string, error)