fix: Derive peer ID from hotkey (public key) not seed

The peer ID is now derived from the SR25519 public key (hotkey),
ensuring a 1:1 correspondence between SS58 address and peer ID.

SS58: 5GziQCcRpN8NCJktX343brnfuVe3w6gUYieeStXPD1Dag2At
Peer ID: 12D3KooWEpZoR9A1fpMN4QGspuRSa9UYHYvnFda2GWkXXZyYgAkN

Author: EchoBT

bins/validator-node/src/main.rs

@@ -177,8 +177,9 @@ async fn main() -> Result<()> {
     info!("Validator hotkey (hex): {}", keypair.hotkey().to_hex());
     info!("Validator SS58 address: {}", keypair.ss58_address());
 
-    // The identity seed for P2P is derived from the keypair seed
-    let identity_seed = keypair.seed();
+    // The identity seed for P2P is derived from the hotkey (public key)
+    // This ensures the peer ID corresponds to the SS58 address
+    let identity_seed = keypair.hotkey().0;
 
     // Canonicalize data directory to ensure absolute paths for Docker
     let data_dir = if args.data_dir.exists() {