fix nonce to bytes

Author: open-junius

pallets/subtensor/src/registration.rs

@@ -546,7 +546,7 @@ impl<T: Config> Pallet<T> {
     }
 
     pub fn create_seal_hash(block_number_u64: u64, nonce_u64: u64, hotkey: &T::AccountId) -> H256 {
-        let nonce = nonce_u64.to_be_bytes();
+        let nonce = U256::from(nonce_u64);
         let block_hash_at_number: H256 = Self::get_block_hash_from_u64(block_number_u64);
         let block_hash_bytes: &[u8; 32] = block_hash_at_number.as_fixed_bytes();
         let binding = Self::hash_block_and_hotkey(block_hash_bytes, hotkey);