diff --git a/bridges/bin/node/node/build.rs b/bridges/bin/node/node/build.rs
index 222cbb409285..02322263485c 100644
--- a/bridges/bin/node/node/build.rs
+++ b/bridges/bin/node/node/build.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 use vergen::{ConstantsFlags, generate_cargo_keys};
 
 const ERROR_MSG: &str = "Failed to generate metadata files";
diff --git a/bridges/bin/node/node/src/chain_spec.rs b/bridges/bin/node/node/src/chain_spec.rs
index 5693dc21d8a7..a988b96c3010 100644
--- a/bridges/bin/node/node/src/chain_spec.rs
+++ b/bridges/bin/node/node/src/chain_spec.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 use sp_core::{Pair, Public, sr25519};
 use bridge_node_runtime::{
 	AccountId, AuraConfig, BalancesConfig, GenesisConfig, GrandpaConfig,
diff --git a/bridges/bin/node/node/src/cli.rs b/bridges/bin/node/node/src/cli.rs
index 0091ef7d7591..9be42c8f44cc 100644
--- a/bridges/bin/node/node/src/cli.rs
+++ b/bridges/bin/node/node/src/cli.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 use sc_cli::{RunCmd, Subcommand};
 use structopt::StructOpt;
 
diff --git a/bridges/bin/node/node/src/command.rs b/bridges/bin/node/node/src/command.rs
index 0f4c301dbff5..c17ea03dd34f 100644
--- a/bridges/bin/node/node/src/command.rs
+++ b/bridges/bin/node/node/src/command.rs
@@ -1,18 +1,34 @@
-// Copyright 2017-2020 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
 use sp_consensus_aura::sr25519::{AuthorityPair as AuraPair};
 use sc_cli::VersionInfo;
diff --git a/bridges/bin/node/node/src/main.rs b/bridges/bin/node/node/src/main.rs
index 7e497cfdfd8f..3a5823d8d743 100644
--- a/bridges/bin/node/node/src/main.rs
+++ b/bridges/bin/node/node/src/main.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 //! Substrate Node Template CLI library.
 #![warn(missing_docs)]
 
@@ -16,7 +32,7 @@ fn main() -> sc_cli::Result<()> {
 		author: "Parity Technologies",
 		description: "Bridge Node",
 		support_url: "https://github.com/paritytech/parity-bridges-common/",
-		copyright_start_year: 2017,
+		copyright_start_year: 2019,
 	};
 
 	command::run(version)
diff --git a/bridges/bin/node/node/src/service.rs b/bridges/bin/node/node/src/service.rs
index 9c860e67ca63..f268a5dbbb4e 100644
--- a/bridges/bin/node/node/src/service.rs
+++ b/bridges/bin/node/node/src/service.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 //! Service and ServiceFactory implementation. Specialized wrapper over substrate service.
 
 use std::sync::Arc;
diff --git a/bridges/bin/node/runtime/build.rs b/bridges/bin/node/runtime/build.rs
index 39f7f56feb0b..81d28a1e9237 100644
--- a/bridges/bin/node/runtime/build.rs
+++ b/bridges/bin/node/runtime/build.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 use wasm_builder_runner::WasmBuilder;
 
 fn main() {
diff --git a/bridges/bin/node/runtime/src/lib.rs b/bridges/bin/node/runtime/src/lib.rs
index 6036697b47ec..8b5c9876667c 100644
--- a/bridges/bin/node/runtime/src/lib.rs
+++ b/bridges/bin/node/runtime/src/lib.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 //! The Substrate Node Template runtime. This can be compiled with `#[no_std]`, ready for Wasm.
 
 #![cfg_attr(not(feature = "std"), no_std)]
diff --git a/bridges/modules/ethereum/other-runtime-components/bin/node/cli/src/chain_spec.rs b/bridges/modules/ethereum/other-runtime-components/bin/node/cli/src/chain_spec.rs
index 8a0af961578a..bb3e56650971 100644
--- a/bridges/modules/ethereum/other-runtime-components/bin/node/cli/src/chain_spec.rs
+++ b/bridges/modules/ethereum/other-runtime-components/bin/node/cli/src/chain_spec.rs
@@ -1,20 +1,36 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2018-2020 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Substrate chain configurations.
+//! Parity Bridges Common chain configurations.
 
 use sc_chain_spec::ChainSpecExtension;
 use sp_core::{Pair, Public, crypto::UncheckedInto, sr25519};
@@ -44,7 +60,7 @@ const STAGING_TELEMETRY_URL: &str = "wss://telemetry.polkadot.io/submit/";
 
 /// Node `ChainSpec` extensions.
 ///
-/// Additional parameters for some Substrate core modules,
+/// Additional parameters for some Parity Bridges Common core modules,
 /// customizable from the chain spec.
 #[derive(Default, Clone, Serialize, Deserialize, ChainSpecExtension)]
 #[serde(rename_all = "camelCase")]
diff --git a/bridges/modules/ethereum/other-runtime-components/bin/node/runtime/src/lib.rs b/bridges/modules/ethereum/other-runtime-components/bin/node/runtime/src/lib.rs
index 21cfc6d8bc50..d050953a4c53 100644
--- a/bridges/modules/ethereum/other-runtime-components/bin/node/runtime/src/lib.rs
+++ b/bridges/modules/ethereum/other-runtime-components/bin/node/runtime/src/lib.rs
@@ -1,20 +1,36 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2018-2020 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
-//! The Substrate runtime. This can be compiled with ``#[no_std]`, ready for Wasm.
+//! The Parity Bridges Common runtime. This can be compiled with ``#[no_std]`, ready for Wasm.
 
 #![cfg_attr(not(feature = "std"), no_std)]
 // `construct_runtime!` does a lot of recursion and requires us to increase the limit to 256.
diff --git a/bridges/modules/ethereum/other-runtime-components/bin/node/testing/src/genesis.rs b/bridges/modules/ethereum/other-runtime-components/bin/node/testing/src/genesis.rs
index 85dddc808e7c..cbb1fa0f18ff 100644
--- a/bridges/modules/ethereum/other-runtime-components/bin/node/testing/src/genesis.rs
+++ b/bridges/modules/ethereum/other-runtime-components/bin/node/testing/src/genesis.rs
@@ -1,18 +1,34 @@
 // Copyright 2019-2020 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
 //! Genesis Configuration.
 
diff --git a/bridges/modules/ethereum/other-runtime-components/primitives/core/src/hasher.rs b/bridges/modules/ethereum/other-runtime-components/primitives/core/src/hasher.rs
index bb0bd665bc7e..0751f1e824ad 100644
--- a/bridges/modules/ethereum/other-runtime-components/primitives/core/src/hasher.rs
+++ b/bridges/modules/ethereum/other-runtime-components/primitives/core/src/hasher.rs
@@ -1,20 +1,36 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2018-2020 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Substrate Blake2b Hasher implementation
+//! Parity Bridges Common Blake2b Hasher implementation
 
 use hash_db::Hasher;
 use hash256_std_hasher::Hash256StdHasher;
diff --git a/bridges/modules/ethereum/other-runtime-components/primitives/core/src/lib.rs b/bridges/modules/ethereum/other-runtime-components/primitives/core/src/lib.rs
index 0092f892b79b..36368f87993a 100644
--- a/bridges/modules/ethereum/other-runtime-components/primitives/core/src/lib.rs
+++ b/bridges/modules/ethereum/other-runtime-components/primitives/core/src/lib.rs
@@ -1,20 +1,36 @@
-// Copyright 2017-2020 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Shareable Substrate types.
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Shareable Parity Bridges Common types.
 
 #![warn(missing_docs)]
 
@@ -291,7 +307,7 @@ impl From<LogLevel> for log::Level {
 
 /// Encodes the given value into a buffer and returns the pointer and the length as a single `u64`.
 ///
-/// When Substrate calls into Wasm it expects a fixed signature for functions exported
+/// When Parity Bridges Common calls into Wasm it expects a fixed signature for functions exported
 /// from the Wasm blob. The return value of this signature is always a `u64`.
 /// This `u64` stores the pointer to the encoded return value and the length of this encoded value.
 /// The low `32bits` are reserved for the pointer, followed by `32bit` for the length.
diff --git a/bridges/modules/ethereum/other-runtime-components/primitives/io/src/lib.rs b/bridges/modules/ethereum/other-runtime-components/primitives/io/src/lib.rs
index 8a87028da667..997ab73e58d6 100644
--- a/bridges/modules/ethereum/other-runtime-components/primitives/io/src/lib.rs
+++ b/bridges/modules/ethereum/other-runtime-components/primitives/io/src/lib.rs
@@ -1,20 +1,36 @@
-// Copyright 2017-2020 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
-//! This is part of the Substrate runtime.
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
+//! This is part of the Parity Bridges Common runtime.
 
 #![warn(missing_docs)]
 
@@ -23,9 +39,9 @@
 #![cfg_attr(not(feature = "std"), feature(core_intrinsics))]
 
 #![cfg_attr(feature = "std",
-   doc = "Substrate runtime standard library as compiled when linked with Rust's standard library.")]
+   doc = "Parity Bridges Common runtime standard library as compiled when linked with Rust's standard library.")]
 #![cfg_attr(not(feature = "std"),
-   doc = "Substrate's runtime standard library as compiled without Rust's standard library.")]
+   doc = "Parity Bridges Common's runtime standard library as compiled without Rust's standard library.")]
 
 use sp_std::vec::Vec;
 
@@ -838,7 +854,7 @@ pub trait Sandbox {
 	}
 }
 
-/// Allocator used by Substrate when executing the Wasm runtime.
+/// Allocator used by Parity Bridges Common when executing the Wasm runtime.
 #[cfg(not(feature = "std"))]
 struct WasmAllocator;
 
@@ -888,11 +904,11 @@ pub fn oom(_: core::alloc::Layout) -> ! {
 #[cfg(feature = "std")]
 pub type TestExternalities = sp_state_machine::TestExternalities<sp_core::Blake2Hasher, u64>;
 
-/// The host functions Substrate provides for the Wasm runtime environment.
+/// The host functions Parity Bridges Common provides for the Wasm runtime environment.
 ///
 /// All these host functions will be callable from inside the Wasm environment.
 #[cfg(feature = "std")]
-pub type SubstrateHostFunctions = (
+pub type Parity Bridges CommonHostFunctions = (
 	storage::HostFunctions,
 	misc::HostFunctions,
 	offchain::HostFunctions,
diff --git a/bridges/modules/ethereum/src/error.rs b/bridges/modules/ethereum/src/error.rs
index f716a7e06618..7fe9b4f802b7 100644
--- a/bridges/modules/ethereum/src/error.rs
+++ b/bridges/modules/ethereum/src/error.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/modules/ethereum/src/finality.rs b/bridges/modules/ethereum/src/finality.rs
index 37e16d6ccd43..cfa4c77a397e 100644
--- a/bridges/modules/ethereum/src/finality.rs
+++ b/bridges/modules/ethereum/src/finality.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/modules/ethereum/src/import.rs b/bridges/modules/ethereum/src/import.rs
index c11146526491..bf8d21ea0297 100644
--- a/bridges/modules/ethereum/src/import.rs
+++ b/bridges/modules/ethereum/src/import.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/modules/ethereum/src/lib.rs b/bridges/modules/ethereum/src/lib.rs
index 2288c205bdac..f69dbe0592ed 100644
--- a/bridges/modules/ethereum/src/lib.rs
+++ b/bridges/modules/ethereum/src/lib.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/modules/ethereum/src/validators.rs b/bridges/modules/ethereum/src/validators.rs
index 0860f807ffdd..21f1f0b58b0d 100644
--- a/bridges/modules/ethereum/src/validators.rs
+++ b/bridges/modules/ethereum/src/validators.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/modules/ethereum/src/verification.rs b/bridges/modules/ethereum/src/verification.rs
index 09de275877cb..ea9b37fa528d 100644
--- a/bridges/modules/ethereum/src/verification.rs
+++ b/bridges/modules/ethereum/src/verification.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/modules/substrate/src/lib.rs b/bridges/modules/substrate/src/lib.rs
index bcb7f7081bce..3a0f9a0db557 100644
--- a/bridges/modules/substrate/src/lib.rs
+++ b/bridges/modules/substrate/src/lib.rs
@@ -1,18 +1,34 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2017-2019 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
 //! # Bridge Module
 //!
diff --git a/bridges/modules/substrate/src/storage_proof.rs b/bridges/modules/substrate/src/storage_proof.rs
index 68f2c07a20e3..dfdc0c5787da 100644
--- a/bridges/modules/substrate/src/storage_proof.rs
+++ b/bridges/modules/substrate/src/storage_proof.rs
@@ -1,20 +1,36 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2017-2019 Parity Technologies (UK) Ltd.
-// This file is part of Substrate.
+// This file is part of Parity Bridges Common.
 
-// Substrate is free software: you can redistribute it and/or modify
+// Parity Bridges Common is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 
-// Substrate is distributed in the hope that it will be useful,
+// Parity Bridges Common is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Logic for checking Substrate storage proofs.
+//! Logic for checking Parity Bridges Common storage proofs.
 
 use hash_db::{HashDB, Hasher, EMPTY_PREFIX};
 use sp_runtime::RuntimeDebug;
diff --git a/bridges/primitives/ethereum-poa/src/lib.rs b/bridges/primitives/ethereum-poa/src/lib.rs
index 2cd5d8d2d683..b6b392a2062b 100644
--- a/bridges/primitives/ethereum-poa/src/lib.rs
+++ b/bridges/primitives/ethereum-poa/src/lib.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/ethereum/src/ethereum_client.rs b/bridges/relays/ethereum/src/ethereum_client.rs
index e04a915d46e2..08eaf2475340 100644
--- a/bridges/relays/ethereum/src/ethereum_client.rs
+++ b/bridges/relays/ethereum/src/ethereum_client.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/ethereum/src/ethereum_headers.rs b/bridges/relays/ethereum/src/ethereum_headers.rs
index 154f9256acb1..1a3c110ad341 100644
--- a/bridges/relays/ethereum/src/ethereum_headers.rs
+++ b/bridges/relays/ethereum/src/ethereum_headers.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/ethereum/src/ethereum_sync.rs b/bridges/relays/ethereum/src/ethereum_sync.rs
index 93ed761bd01c..5819c5f0bb89 100644
--- a/bridges/relays/ethereum/src/ethereum_sync.rs
+++ b/bridges/relays/ethereum/src/ethereum_sync.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/ethereum/src/ethereum_sync_loop.rs b/bridges/relays/ethereum/src/ethereum_sync_loop.rs
index 59fae12ad333..1540edd78f44 100644
--- a/bridges/relays/ethereum/src/ethereum_sync_loop.rs
+++ b/bridges/relays/ethereum/src/ethereum_sync_loop.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/ethereum/src/ethereum_types.rs b/bridges/relays/ethereum/src/ethereum_types.rs
index c5aaaf053178..cd61ac01b371 100644
--- a/bridges/relays/ethereum/src/ethereum_types.rs
+++ b/bridges/relays/ethereum/src/ethereum_types.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/ethereum/src/main.rs b/bridges/relays/ethereum/src/main.rs
index de9546bfa6fd..eee802a004cd 100644
--- a/bridges/relays/ethereum/src/main.rs
+++ b/bridges/relays/ethereum/src/main.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/ethereum/src/substrate_client.rs b/bridges/relays/ethereum/src/substrate_client.rs
index f66395b1cd36..7260cb87a254 100644
--- a/bridges/relays/ethereum/src/substrate_client.rs
+++ b/bridges/relays/ethereum/src/substrate_client.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/ethereum/src/substrate_types.rs b/bridges/relays/ethereum/src/substrate_types.rs
index 8cf5d86cb148..62b28e47358c 100644
--- a/bridges/relays/ethereum/src/substrate_types.rs
+++ b/bridges/relays/ethereum/src/substrate_types.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 // Copyright 2019 Parity Technologies (UK) Ltd.
 // This file is part of Parity-Bridge.
 
diff --git a/bridges/relays/substrate/src/bridge.rs b/bridges/relays/substrate/src/bridge.rs
index 7a733c5862e5..fb97299bfcbc 100644
--- a/bridges/relays/substrate/src/bridge.rs
+++ b/bridges/relays/substrate/src/bridge.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 use crate::error::Error;
 use crate::rpc::{self, SubstrateRPC};
 use crate::params::{RPCUrlParam, Params};
diff --git a/bridges/relays/substrate/src/error.rs b/bridges/relays/substrate/src/error.rs
index a612c84707d6..f1b18568b6b3 100644
--- a/bridges/relays/substrate/src/error.rs
+++ b/bridges/relays/substrate/src/error.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 use futures::channel::mpsc;
 
 #[derive(Debug, derive_more::Display)]
diff --git a/bridges/relays/substrate/src/main.rs b/bridges/relays/substrate/src/main.rs
index bfa183cb2e50..7443c6bebc93 100644
--- a/bridges/relays/substrate/src/main.rs
+++ b/bridges/relays/substrate/src/main.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 mod bridge;
 mod error;
 mod params;
diff --git a/bridges/relays/substrate/src/params.rs b/bridges/relays/substrate/src/params.rs
index 019581eb8c4b..2b2e81321d41 100644
--- a/bridges/relays/substrate/src/params.rs
+++ b/bridges/relays/substrate/src/params.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 use crate::error::Error;
 
 use url::Url;
diff --git a/bridges/relays/substrate/src/rpc.rs b/bridges/relays/substrate/src/rpc.rs
index 575419e3c5f0..d9376e66de97 100644
--- a/bridges/relays/substrate/src/rpc.rs
+++ b/bridges/relays/substrate/src/rpc.rs
@@ -1,3 +1,19 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
 use jsonrpsee::core::client::{RawClient, RawClientError, TransportClient};
 use node_primitives::{BlockNumber, Hash, Header};
 use sp_core::Bytes;