diff --git a/crates/orchestrator/src/lib.rs b/crates/orchestrator/src/lib.rs
index 5e52cd68b..47efe8654 100644
--- a/crates/orchestrator/src/lib.rs
+++ b/crates/orchestrator/src/lib.rs
@@ -235,6 +235,9 @@ where
             .iter_mut()
             .map(|node| spawner::spawn_node(node, global_files_to_inject.clone(), &ctx));
 
+        // Initiate the node_ws_uel which will be later used in the Parachain_with_extrinsic config
+        let mut node_ws_url: String = "".to_string();
+
         // Calculate the bootnodes addr from the running nodes
         let mut bootnodes_addr: Vec<String> = vec![];
         for node in futures::future::try_join_all(spawning_tasks).await? {
@@ -248,23 +251,22 @@ where
                     &node.spec.p2p_cert_hash,
                 )?,
             );
+
+            // Is used in the register_para_options (We need to get this from the relay and not the collators)
+            if node_ws_url.is_empty() { node_ws_url = node.ws_uri.clone() }
+
             // Add the node to the `Network` instance
             network.add_running_node(node, None);
         }
 
         ctx.bootnodes_addr = &bootnodes_addr;
 
-        // Initiate the node_ws_uel which will be later used in the Parachain_with_extrinsic config
-        let mut node_ws_url: String = "".to_string();
-
         // spawn the rest of the nodes (TODO: in batches)
         let spawning_tasks = relaynodes
             .iter()
             .map(|node| spawner::spawn_node(node, global_files_to_inject.clone(), &ctx));
-        for node in futures::future::try_join_all(spawning_tasks).await? {
-            // Is used in the register_para_options (We need to get this from the relay and not the collators)
-            node_ws_url = node.ws_uri.clone();
 
+        for node in futures::future::try_join_all(spawning_tasks).await? {
             // Add the node to the `Network` instance
             network.add_running_node(node, None);
         }
@@ -332,6 +334,10 @@ where
             }
         }
 
+        // TODO: we should wait until node is ready!
+        if !para_to_register_with_extrinsic.is_empty() {
+            tokio::time::sleep(Duration::from_secs(10)).await;
+        }
         // Now we need to register the paras with extrinsic from the Vec collected before;
         for para in para_to_register_with_extrinsic {
             let register_para_options: RegisterParachainOptions = RegisterParachainOptions {
@@ -357,7 +363,6 @@ where
                 finalization: false, // TODO: Seed is passed by?
             };
 
-            println!("{:#?}", register_para_options);
             let _ = Parachain::register::<T>(register_para_options, &scoped_fs).await?;
         }
 
diff --git a/crates/orchestrator/src/network/parachain.rs b/crates/orchestrator/src/network/parachain.rs
index e4230b5ae..b3abab458 100644
--- a/crates/orchestrator/src/network/parachain.rs
+++ b/crates/orchestrator/src/network/parachain.rs
@@ -1,7 +1,8 @@
 use std::path::{Path, PathBuf};
 
 use subxt::{dynamic::Value, OnlineClient, SubstrateConfig};
-use subxt_signer::{ bip39::Mnemonic, sr25519::Keypair };
+use subxt_signer::{sr25519::Keypair, SecretUri };
+use std::str::FromStr;
 
 use support::fs::FileSystem;
 
@@ -9,7 +10,7 @@ use support::fs::FileSystem;
 // use sp_core::{sr25519, Pair};
 use super::node::NetworkNode;
 use crate::{
-    shared::types::{ParachainGenesisArgs, RegisterParachainOptions},
+    shared::types::RegisterParachainOptions,
     ScopedFilesystem,
 };
 
@@ -57,9 +58,8 @@ impl Parachain {
         if let Some(possible_seed) = options.seed {
             sudo = Keypair::from_seed(possible_seed).expect("seed should return a Keypair.");
         } else {
-            let phrase = "bottom drive obey lake curtain smoke basket hold race lonely fit walk";
-            let mnemonic = Mnemonic::parse(phrase)?;
-            sudo = Keypair::from_phrase(&mnemonic, None)?;
+            let uri = SecretUri::from_str("//Alice")?;
+            sudo = Keypair::from_uri(&uri)?;
         }
 
         let genesis_state = scoped_fs
@@ -71,34 +71,41 @@ impl Parachain {
             .await
             .expect("Wasm Path should be ok by this point.");
 
-        let parachain_genesis_value: ParachainGenesisArgs = ParachainGenesisArgs {
-            genesis_head: genesis_state,
-            validation_code: wasm_data,
-            parachain: options.onboard_as_para,
-        };
 
         let api = OnlineClient::<SubstrateConfig>::from_url(options.node_ws_url).await?;
 
-        // // based on subXT docs: The public key bytes are equivalent to a Substrate `AccountId32`;
-        let account_id = sudo.public_key();
-
         let schedule_para = subxt::dynamic::tx(
-            "ParasSudoWrapperCall",
+            "ParasSudoWrapper",
             "sudo_schedule_para_initialize",
             vec![
-                Value::from_bytes(account_id),
-                Value::from_bytes(parachain_genesis_value),
+                Value::primitive(options.id.into()),
+                Value::named_composite([
+                    ("genesis_head", Value::from_bytes(hex::decode(&genesis_state[2..])?)),
+                    ("validation_code", Value::from_bytes(hex::decode(&wasm_data[2..])?)),
+                    ("para_kind", Value::bool(true)),
+                ])
             ],
         );
 
+
+
+        let sudo_call = subxt::dynamic::tx(
+            "Sudo",
+            "sudo",
+            vec![schedule_para.into_value()]
+        );
+
+
         // TODO: uncomment below and fix the sign and submit (and follow afterwards until
         // finalized block) to register the parachain
         let result = api
             .tx()
-            .sign_and_submit_then_watch_default(&schedule_para, &sudo)
+            .sign_and_submit_then_watch_default(&sudo_call, &sudo)
             .await?;
 
-        println!("{:#?}", result);
+
+        let result = result.wait_for_in_block().await?;
+        println!("In block: {:#?}", result.block_hash());
         Ok(())
     }
 }