diff --git a/Makefile b/Makefile
index 29d27c6..900d644 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,11 @@
-.PHONY: run-dev build-release build-default purge-dev test
+.PHONY: run-dev build-release build-default purge-dev test run-light
 
 run-dev:
 	./target/release/redot-node --dev --rpc-external
 
+run-light:
+	./target/release/melodot-light
+	
 build:
 	cargo build --release
 
diff --git a/crates/rc-validator-network/src/behaviour.rs b/crates/rc-validator-network/src/behaviour.rs
index 302b7c2..f5fce68 100644
--- a/crates/rc-validator-network/src/behaviour.rs
+++ b/crates/rc-validator-network/src/behaviour.rs
@@ -27,7 +27,7 @@ use libp2p::{
 	kad::{store::MemoryStore, Kademlia, KademliaConfig, KademliaEvent},
 	mdns::{tokio::Behaviour as TokioMdns, Config as MdnsConfig, Event as MdnsEvent},
 	ping::{Behaviour as Ping, Event as PingEvent},
-	swarm::NetworkBehaviour,
+	swarm::NetworkBehaviour, identity::Keypair,
 };
 
 pub struct BehaviorConfig {
@@ -60,14 +60,14 @@ pub struct Behavior {
 
 impl Behavior {
 	/// Creates a new [`Behavior`] instance.
-	pub fn new(config: BehaviorConfig) -> Result<Self> {
+	pub fn new(config: BehaviorConfig, keypair: &Keypair) -> Result<Self> {
 		let mdns = TokioMdns::new(MdnsConfig::default())?;
 
 		let kademlia = Kademlia::with_config(config.peer_id, config.kad_store, config.kademlia);
 
 		let gossipsub_config = GossipsubConfig::default();
 		let gossipsub =
-			Gossipsub::new(MessageAuthenticity::Author(config.peer_id), gossipsub_config)
+			Gossipsub::new(MessageAuthenticity::Signed(keypair.clone()), gossipsub_config)
 				.expect("Correct Gossipsub configuration");
 
 		Ok(Self {
diff --git a/crates/rc-validator-network/src/lib.rs b/crates/rc-validator-network/src/lib.rs
index d879bdf..a30ceb8 100644
--- a/crates/rc-validator-network/src/lib.rs
+++ b/crates/rc-validator-network/src/lib.rs
@@ -78,7 +78,7 @@ pub fn create(
 		identify,
 		kademlia: KademliaConfig::default(),
 		kad_store: MemoryStore::new(local_peer_id),
-	})?;
+	},&keypair)?;
 
 	let mut swarm = SwarmBuilder::with_tokio_executor(transport, behaviour, local_peer_id)
 		.max_negotiating_inbound_streams(SWARM_MAX_NEGOTIATING_INBOUND_STREAMS)
diff --git a/redlight/src/cli.rs b/redlight/src/cli.rs
index d1d3e03..ea94fad 100644
--- a/redlight/src/cli.rs
+++ b/redlight/src/cli.rs
@@ -21,7 +21,7 @@ pub const DEFAULT_RPC_LISTEN_ADDR: &str = "127.0.0.1:4177";
 const DEV_RPC_URL: &str = "ws://127.0.0.1:9944";
 const TEST_RPC_URL: &str = "wss://dev.melodot.io:9944";
 
-const DEFAULT_RPC_URL: &str = "ws://127.0.0.1:9944";
+const DEFAULT_RPC_URL: &str = "ws://127.0.0.1:36565";
 
 /// Command line interface configuration
 #[derive(Parser, Debug)]
diff --git a/redlight/src/main.rs b/redlight/src/main.rs
index adeaf89..bc78ce6 100644
--- a/redlight/src/main.rs
+++ b/redlight/src/main.rs
@@ -58,7 +58,7 @@ pub async fn run(config: &cli::Config) -> anyhow::Result<()> {
 		},
 	};
 
-	let das_client = DasClient::new("http://example.com/rpc".to_string());
+	let das_client = DasClient::new("http://127.0.0.1:4177".to_string());
 
 	tokio::spawn(network_worker.run());
 	tokio::spawn(async move {