diff --git a/cmd/swarm/explore.go b/cmd/swarm/explore.go
new file mode 100644
index 0000000000..9fdb2c674e
--- /dev/null
+++ b/cmd/swarm/explore.go
@@ -0,0 +1,58 @@
+// Copyright 2016 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+// Command bzzhash computes a swarm tree hash.
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/ethereum/go-ethereum/cmd/utils"
+	"github.com/ethereum/go-ethereum/swarm/storage"
+	"gopkg.in/urfave/cli.v1"
+)
+
+var chunkExploreCommand = cli.Command{
+	Action:             explore,
+	CustomHelpTemplate: helpTemplate,
+	Name:               "explore",
+	Usage:              "print all hashes of a file to STDOUT",
+	ArgsUsage:          "<file>",
+	Description:        "Prints all hashes of a file to STDOUT",
+}
+
+func explore(ctx *cli.Context) {
+	args := ctx.Args()
+	if len(args) < 1 {
+		utils.Fatalf("Usage: swarm explore <file name>")
+	}
+	f, err := os.Open(args[0])
+	if err != nil {
+		utils.Fatalf("Error opening file " + args[1])
+	}
+	defer f.Close()
+
+	fileStore := storage.NewFileStore(&storage.FakeChunkStore{}, storage.NewFileStoreParams())
+	_, err = fileStore.StoreToExplore(context.TODO(), f)
+	if err != nil {
+		utils.Fatalf("%v\n", err)
+	} else {
+		//fmt.Printf("%v\n", addr)
+		fmt.Println("Done.")
+	}
+}
diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go
index 53888b615f..7f45db74c8 100644
--- a/cmd/swarm/main.go
+++ b/cmd/swarm/main.go
@@ -142,6 +142,8 @@ func init() {
 		dbCommand,
 		// See config.go
 		DumpConfigCommand,
+		// chunkExploreCommand
+		chunkExploreCommand,
 	}
 
 	// append a hidden help subcommand to all commands that have subcommands
diff --git a/cmd/swarm/swarm-smoke/chunkExplorer.go b/cmd/swarm/swarm-smoke/chunkExplorer.go
new file mode 100644
index 0000000000..437d5894cc
--- /dev/null
+++ b/cmd/swarm/swarm-smoke/chunkExplorer.go
@@ -0,0 +1,56 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"fmt"
+
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/rpc"
+	cli "gopkg.in/urfave/cli.v1"
+)
+
+var (
+	addr string
+)
+
+func chunkExplorer(c *cli.Context) error {
+	fmt.Println("generate endpoints...")
+	//generateEndpoints(scheme, cluster, appName, from, to)
+	fmt.Println("done.")
+
+	var has bool
+	//for _, e := range endpoints {
+	e := "ws://localhost"
+	fmt.Println("dialing...." + e + ":8546")
+	client, _ := rpc.Dial(e + ":8546")
+	fmt.Println("Trying...." + e)
+	if err := client.Call(&has, "debugapi_hasChunk", addr); err != nil {
+		fmt.Println("err")
+		log.Error("Error requesting hasChunk from endpoint", "endpoint", e, "chunkAddress", addr, "err", err)
+	} else {
+		if has {
+			fmt.Println("has")
+			log.Info("Endpoint "+e+" reports to HAVE chunk", "chunk", addr)
+		} else {
+			fmt.Println("not")
+			log.Debug("Endpoint "+e+" reports to NOT have chunk", "chunk", addr)
+		}
+	}
+	//}
+	return nil
+}
diff --git a/cmd/swarm/swarm-smoke/main.go b/cmd/swarm/swarm-smoke/main.go
index 5596714605..c5ce718f5e 100644
--- a/cmd/swarm/swarm-smoke/main.go
+++ b/cmd/swarm/swarm-smoke/main.go
@@ -88,6 +88,12 @@ func main() {
 			Usage:       "http or https",
 			Destination: &scheme,
 		},
+		cli.StringFlag{
+			Name:        "addr",
+			Value:       "<hash>",
+			Usage:       "chunk address",
+			Destination: &addr,
+		},
 		cli.BoolFlag{
 			Name:        "include-localhost",
 			Usage:       "whether to include localhost:8500 as an endpoint",
@@ -160,6 +166,12 @@ func main() {
 			Usage:   "measure network aggregate capacity",
 			Action:  wrapCliCommand("sliding-window", false, slidingWindow),
 		},
+		{
+			Name:    "chunk_explorer",
+			Aliases: []string{"x"},
+			Usage:   "query nodes if they are storing a specific chunk (by address)",
+			Action:  wrapCliCommand("chunkExplorer", false, chunkExplorer),
+		},
 	}
 
 	sort.Sort(cli.FlagsByName(app.Flags))