--- a/README.md
+++ b/README.md
@@ -155,13 +155,13 @@
 location:
 	V0(X2(Parent, Parachain(PARA_ID)))
 metadata:
-	name         OPL
-	symbol       OPL
+	name         QTZ
+	symbol       QTZ
 	decimals     18
 minimalBalance	 1
 ```
 
-### Next, we can send tokens from Opal to Karura:
+### Next, we can send tokens from Quartz to Karura:
 ```
 polkadotXcm -> reserveTransferAssets
 dest:
@@ -179,7 +179,7 @@
 The result will be displayed in ChainState
 tokens -> accounts
 
-### To send tokens from Karura to Opal:
+### To send tokens from Karura to Quartz:
 ```
 xtokens -> transfer
 
--- a/client/rpc/src/lib.rs
+++ b/client/rpc/src/lib.rs
@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
+// Original License
 use std::sync::Arc;
 
 use codec::Decode;
--- a/node/cli/src/service.rs
+++ b/node/cli/src/service.rs
@@ -14,8 +14,6 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-//! Service and ServiceFactory implementation. Specialized wrapper over substrate service.
-
 // std
 use std::sync::Arc;
 use std::sync::Mutex;
--- a/pallets/scheduler/src/lib.rs
+++ b/pallets/scheduler/src/lib.rs
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-// Original license
+// Original license:
 // This file is part of Substrate.
 
 // Copyright (C) 2017-2021 Parity Technologies (UK) Ltd.
--- a/runtime/opal/src/lib.rs
+++ b/runtime/opal/src/lib.rs
@@ -216,11 +216,15 @@
 		.avg_block_initialization(AVERAGE_ON_INITIALIZE_RATIO)
 		.build_or_panic();
 	pub const Version: RuntimeVersion = VERSION;
-	pub const SS58Prefix: u8 = 42;
+	/*
+	255 - Quartz
+	42 - Opal
+	*/
+	pub const SS58Prefix: u8 = 255;
 }
 
 parameter_types! {
-	pub const ChainId: u64 = 8882;
+	pub const ChainId: u64 = 8881;
 }
 
 pub struct FixedFee;
--- a/tests/flipper-src/lib.rs
+++ b/tests/flipper-src/lib.rs
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-// Original license
+// Original License
 // Copyright 2018-2020 Parity Technologies (UK) Ltd.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
--- a/tests/ink-types-node-runtime/src/calls.rs
+++ b/tests/ink-types-node-runtime/src/calls.rs
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-// Original license
+// Original License
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of ink!.
 //
--- a/tests/ink-types-node-runtime/src/lib.rs
+++ b/tests/ink-types-node-runtime/src/lib.rs
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
-// Original license
+// Original License
 // Copyright 2018-2019 Parity Technologies (UK) Ltd.
 // This file is part of ink!.
 //
--- a/tests/loadtester-src/lib.rs
+++ b/tests/loadtester-src/lib.rs
@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
+// Original License
 #![cfg_attr(not(feature = "std"), no_std)]
 
 use ink_lang as ink;
--- a/tests/src/xcmTransfer.test.ts
+++ b/tests/src/xcmTransfer.test.ts
@@ -34,7 +34,7 @@
 const KARURA_CHAIN = 2000;
 const KARURA_PORT = '9946';
 
-describe('Integration test: Exchanging OPL with Karura', () => {
+describe('Integration test: Exchanging QTZ with Karura', () => {
   let alice: IKeyringPair;
   
   before(async () => {
@@ -60,8 +60,8 @@
 
       const metadata =
       {
-        name: 'OPL',
-        symbol: 'OPL',
+        name: 'QTZ',
+        symbol: 'QTZ',
         decimals: 18,
         minimalBalance: 1,
       };
@@ -74,7 +74,7 @@
     }, karuraApiOptions);
   });
 
-  it('Should connect and send OPL to Karura', async () => {
+  it('Should connect and send QTZ to Karura', async () => {
     let balanceOnKaruraBefore: bigint;
     
     await usingApi(async (api) => {
@@ -141,7 +141,7 @@
     }, {provider: new WsProvider('ws://127.0.0.1:' + KARURA_PORT)});
   });
 
-  it('Should connect to Karura and send OPL back', async () => {
+  it('Should connect to Karura and send QTZ back', async () => {
     let balanceBefore: bigint;
     
     await usingApi(async (api) => {