diff --git a/cmd/otter/main.go b/cmd/otter/main.go
index a030a4f..195551b 100644
--- a/cmd/otter/main.go
+++ b/cmd/otter/main.go
@@ -28,7 +28,12 @@ func main() {
 			defer borDb.Close()
 		}
 		r := chi.NewRouter()
-		RouteServer(r, *cfg)
+		// route the server
+
+		if !cfg.OtsServerDisable {
+			RouteServer(r, *cfg)
+		}
+
 		apiList := mycmds.APIList(db, borDb, backend, txPool, mining, ff, stateCache, blockReader, agg, *cfg)
 		if err := cli.StartRpcServer(ctx, r, *cfg, apiList); err != nil {
 			log.Error(err.Error())
diff --git a/cmd/otter/server.go b/cmd/otter/server.go
index 7206bfa..98528d0 100644
--- a/cmd/otter/server.go
+++ b/cmd/otter/server.go
@@ -6,6 +6,8 @@ import (
 	"strings"
 
 	"gfx.cafe/open/4bytes/sigs"
+	"gfx.cafe/open/4bytes/topics"
+	"gfx.cafe/open/4bytes/triemap"
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
 	"github.com/wmitsuda/otterscan/cmd/otter/cli/httpcfg"
@@ -16,7 +18,8 @@ func RouteServer(r chi.Router, cfg httpcfg.HttpCfg) {
 		filesDir := http.Dir(cfg.OtsStaticDir)
 		r.Use(middleware.Logger)
 		r.Use(middleware.Recoverer)
-		r.Handle("/signatures/{hash}", &sigs.HttpServer{})
+		r.HandleFunc("/signatures/{hash}", triemap.HttpHandler(sigs.Both))
+		r.HandleFunc("/topic0/{hash}", triemap.HttpHandler(topics.Both))
 		r.HandleFunc("/config.json", func(w http.ResponseWriter, r *http.Request) {
 			json.NewEncoder(w).Encode(map[string]any{
 				"erigonURL":       cfg.OtsRpcDaemonUrl,
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 19356f0..c242b2f 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -16,4 +16,4 @@ services:
       --metrics --metrics.addr=0.0.0.0 --metrics.port=6064
       --pprof --pprof.addr=0.0.0.0 --pprof.port=6000
     ports:
-     - 3000:8545
+     - 3001:8545
diff --git a/go.mod b/go.mod
index bb775ce..bd36874 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.19
 replace github.com/tendermint/tendermint => github.com/bnb-chain/tendermint v0.31.12
 
 require (
-	gfx.cafe/open/4bytes v0.0.0-20221025085909-a307043c1e5e
+	gfx.cafe/open/4bytes v0.0.0-20221025122240-de8bf0bf48d0
 	github.com/RoaringBitmap/roaring v1.2.1
 	github.com/go-chi/chi/v5 v5.0.7
 	github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d
diff --git a/go.sum b/go.sum
index 2371782..a17f2c2 100644
--- a/go.sum
+++ b/go.sum
@@ -8,6 +8,12 @@ crawshaw.io/sqlite v0.3.3-0.20210127221821-98b1f83c5508/go.mod h1:igAO5JulrQ1Dbd
 filippo.io/edwards25519 v1.0.0-rc.1 h1:m0VOOB23frXZvAOK44usCgLWvtsxIoMCTBGJZlpmGfU=
 gfx.cafe/open/4bytes v0.0.0-20221025085909-a307043c1e5e h1:Fl+QPNlTOVAxKqSEdut5fH+/To4TPE8kg8weQ3LGzUY=
 gfx.cafe/open/4bytes v0.0.0-20221025085909-a307043c1e5e/go.mod h1:C0vwSYhh1b/ckPTkpq0kDXk32vU4DT5QuQwYLxO6W2c=
+gfx.cafe/open/4bytes v0.0.0-20221025114135-d7c548af19db h1:M34YDF/XRgqMSV9YAamH8u599fd67SJ95v6PQxP/96o=
+gfx.cafe/open/4bytes v0.0.0-20221025114135-d7c548af19db/go.mod h1:C0vwSYhh1b/ckPTkpq0kDXk32vU4DT5QuQwYLxO6W2c=
+gfx.cafe/open/4bytes v0.0.0-20221025121800-1d49c2434a12 h1:DpJNnzuMmIyIB1NTNJKybdYkR4gjIV7q/WzNQMS5/J0=
+gfx.cafe/open/4bytes v0.0.0-20221025121800-1d49c2434a12/go.mod h1:C0vwSYhh1b/ckPTkpq0kDXk32vU4DT5QuQwYLxO6W2c=
+gfx.cafe/open/4bytes v0.0.0-20221025122240-de8bf0bf48d0 h1:LOv6iGWTv80aSGw9zb7P8varDijsj/G2s7pr32VH1d0=
+gfx.cafe/open/4bytes v0.0.0-20221025122240-de8bf0bf48d0/go.mod h1:C0vwSYhh1b/ckPTkpq0kDXk32vU4DT5QuQwYLxO6W2c=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
diff --git a/package.json b/package.json
index b9a8e0c..8d1436d 100644
--- a/package.json
+++ b/package.json
@@ -45,21 +45,16 @@
   },
   "scripts": {
     "start": "vite",
-    "clean": "rm -rf chains topic0 4bytes dist",
+    "clean": "rm -rf chains dist",
     "fullbuild": "npm run dl-all && npm run build",
     "build": "tsc && vite build",
     "postbuild": "npm run copy-all",
     "preview": "vite preview",
-    "dl-all":"npm run clean && npm run dl-chains && npm run dl-topic0",
+    "dl-all":"npm run clean && npm run dl-chains",
     "dl-chains": "svn checkout https://github.com/ethereum-lists/chains/trunk/_data/chains && rm -rf chains/.svn",
-    "dl-topic0": "git clone https://github.com/wmitsuda/topic0 && rm -rf topic0/.git",
-    "copy-all":"npm run copy-chains && npm run copy-topic0",
+    "copy-all":"npm run copy-chains",
     "copy-chains": "rsync -ah chains dist",
-    "copy-topic0": "mkdir -p dist/topic0 && rsync -ah topic0/with_parameter_names/ dist/topic0/",
     "source-map-explorer": "source-map-explorer build/static/js/*.js",
-    "assets-start": "docker run --rm -p 3001:80 --name otterscan-assets -d -v$(pwd)/4bytes/signatures:/usr/share/nginx/html/signatures/ -v$(pwd)/trustwallet/blockchains/ethereum/assets:/usr/share/nginx/html/assets/1 -v$(pwd)/topic0/with_parameter_names:/usr/share/nginx/html/topic0/ -v$(pwd)/chains/_data/chains:/usr/share/nginx/html/chains/ -v$(pwd)/nginx/nginx.conf:/etc/nginx/nginx.conf -v$(pwd)/nginx/conf.d/default.conf:/etc/nginx/conf.d/default.conf nginx:1.21.1-alpine",
-    "assets-start-with-param-names": "docker run --rm -p 3001:80 --name otterscan-assets -d -v$(pwd)/4bytes/with_parameter_names:/usr/share/nginx/html/signatures/ -v$(pwd)/trustwallet/blockchains/ethereum/assets:/usr/share/nginx/html/assets/1 -v$(pwd)/topic0/with_parameter_names:/usr/share/nginx/html/topic0/ -v$(pwd)/chains/_data/chains:/usr/share/nginx/html/chains/ -v$(pwd)/nginx/nginx.conf:/etc/nginx/nginx.conf -v$(pwd)/nginx/conf.d/default.conf:/etc/nginx/conf.d/default.conf nginx:1.21.1-alpine",
-    "assets-stop": "docker stop otterscan-assets",
     "docker-build": "docker buildx build -t otterscan  .",
     "docker-start": "docker run --rm -p 5000:80 --name otterscan -d otterscan",
     "docker-stop": "docker stop otterscan"