diff --git a/api.json b/api.json
index 98953ae..425d90e 100644
--- a/api.json
+++ b/api.json
@@ -1,10 +1,10 @@
 {
 	"threads": 4,
-	"coin": "ubiq",
+	"coin": "etc",
 	"name": "main",
         "pplns": 9000,
-	"network": "ubiq",
-	"coin-name":"ubq",
+	"network": "classic",
+	"coin-name":"etc",
 
 	"proxy": {
 		"enabled": true,
@@ -94,7 +94,7 @@
   
 	"exchange": {
 		   "enabled": true,
-		   "url": "https://api.coingecko.com/api/v3/coins/markets?vs_currency=usd&ids=ubiq",
+		   "url": "https://api.coingecko.com/api/v3/coins/markets?vs_currency=usd&ids=ethereum-classic",
 		   "timeout": "50s",
 		   "refreshInterval": "900s"
     },
diff --git a/proxy/blocks.go b/proxy/blocks.go
index b4a4381..bf10c9e 100644
--- a/proxy/blocks.go
+++ b/proxy/blocks.go
@@ -7,8 +7,8 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/ubiq/go-ubiq/common"
-	//"github.com/ethereum/go-ethereum/common" false
+	//"github.com/ubiq/go-ubiq/common" false
+	"github.com/ethereum/go-ethereum/common"
 	"github.com/yuriy0803/open-etc-pool-friends/rpc"
 	"github.com/yuriy0803/open-etc-pool-friends/util"
 )
diff --git a/proxy/miner.go b/proxy/miner.go
index 8714f31..936e2f1 100644
--- a/proxy/miner.go
+++ b/proxy/miner.go
@@ -6,14 +6,34 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/ubiq/go-ubiq/common"
-	"github.com/ubiq/ubqhash"
+	"github.com/etclabscore/go-etchash"
+	"github.com/ethereum/go-ethereum/common"
 )
 
-var hasher = ubqhash.New()
+var (
+	maxUint256                             = new(big.Int).Exp(big.NewInt(2), big.NewInt(256), big.NewInt(0))
+	ecip1099FBlockClassic uint64           = 11700000 // classic mainnet
+	ecip1099FBlockMordor  uint64           = 2520000  // mordor
+	uip1FEpoch            uint64           = 22       // ubiq mainnet
+	hasher                *etchash.Etchash = nil
+)
 
 func (s *ProxyServer) processShare(login, id, ip string, t *BlockTemplate, params []string) (bool, bool) {
-
+	if hasher == nil {
+		if s.config.Network == "classic" {
+			hasher = etchash.New(&ecip1099FBlockClassic, nil)
+		} else if s.config.Network == "mordor" {
+			hasher = etchash.New(&ecip1099FBlockMordor, nil)
+		} else if s.config.Network == "ubiq" {
+			hasher = etchash.New(nil, &uip1FEpoch)
+		} else if s.config.Network == "ethereum" || s.config.Network == "ropsten" {
+			hasher = etchash.New(nil, nil)
+		} else {
+			// unknown network
+			log.Printf("Unknown network configuration %s", s.config.Network)
+			return false, false
+		}
+	}
 	nonceHex := params[0]
 	hashNoNonce := params[1]
 	mixDigest := params[2]