diff --git a/channels/adminListener.go b/channels/adminListener.go
index 2d2a72ca0425f0e9893fb786649dcee599428ea4..4af7518329c90ef5599c201adde6b119486b109b 100644
--- a/channels/adminListener.go
+++ b/channels/adminListener.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/adminListener_test.go b/channels/adminListener_test.go
index 928acf11e9c1b5d62279409e473a4dc7ee7e5808..a6b78926d0c62bd43acb990ac395d7bcfe48a998 100644
--- a/channels/adminListener_test.go
+++ b/channels/adminListener_test.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/channelMessages.pb.go b/channels/channelMessages.pb.go
index cd29a3cdfc0d0ad6369a963cafa1f76bd2b2130f..de61cc003d5d3494fe3baca7e3099b17f5eedf7a 100644
--- a/channels/channelMessages.pb.go
+++ b/channels/channelMessages.pb.go
@@ -1,5 +1,5 @@
 ////////////////////////////////////////////////////////////////////////////////
-// Copyright © 2020 xx network SEZC                                           //
+// Copyright © 2022 xx foudnation                                             //
 //                                                                            //
 // Use of this source code is governed by a license that can be found in the  //
 // LICENSE file                                                               //
diff --git a/channels/channelMessages.proto b/channels/channelMessages.proto
index eb39899459c3fa06972682cea9ae480fe2207ba2..ccffc1fd6aaa7dcc49559d05a1e11b31cf76456e 100644
--- a/channels/channelMessages.proto
+++ b/channels/channelMessages.proto
@@ -1,5 +1,5 @@
 ////////////////////////////////////////////////////////////////////////////////
-// Copyright © 2020 xx network SEZC                                           //
+// Copyright © 2022 xx foundation                                             //
 //                                                                            //
 // Use of this source code is governed by a license that can be found in the  //
 // LICENSE file                                                               //
diff --git a/channels/emoji.go b/channels/emoji.go
index 4823f6fcab737f3b0b7f9e044fcdc69b69d1c67f..f0bf81c8d3420d5c95c58f8da29b726220f10a7b 100644
--- a/channels/emoji.go
+++ b/channels/emoji.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/emoji_test.go b/channels/emoji_test.go
index f8b9f43c355574887a135fa1c6c22021c4372b19..f453cab5f74bad671759eca75165e412fb0156f9 100644
--- a/channels/emoji_test.go
+++ b/channels/emoji_test.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/errors.go b/channels/errors.go
index 008b64fccb849f556b0b86aa03b3e2a6f87fd39c..6d926af93b1ff292af8ad144680e60638a06fcaf 100644
--- a/channels/errors.go
+++ b/channels/errors.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import "github.com/pkg/errors"
diff --git a/channels/eventModel.go b/channels/eventModel.go
index 0dd58014efe910e4ab58734f144e386c09ceadb7..21a14d239391ac533021c6a0cf206ee2b1cbb120 100644
--- a/channels/eventModel.go
+++ b/channels/eventModel.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/eventModel_test.go b/channels/eventModel_test.go
index c329ce022453e59a667c6c5f91d43bf8de1ab358..a8513489d3591fe97882bef190c79b8e2b4361f8 100644
--- a/channels/eventModel_test.go
+++ b/channels/eventModel_test.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/generateProto.sh b/channels/generateProto.sh
index 3ab1d6b0536cf11fcfc898ad8ba57d977316d369..4c7614f475c881adc093bf40b1bd70e1db35bd3f 100755
--- a/channels/generateProto.sh
+++ b/channels/generateProto.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 #///////////////////////////////////////////////////////////////////////////////
-#/ Copyright © 2020 xx network SEZC                                           //
+#/ Copyright © 2022 xx foundation                                             //
 #/                                                                            //
 #/ Use of this source code is governed by a license that can be found in the  //
 #/ LICENSE file                                                               //
diff --git a/channels/interface.go b/channels/interface.go
index 3d60c7a7aefb14f497e1fe9ff87969dc3c7b92cd..38b1f8170c214f585a0f3d5fb09a05e4584ec9fd 100644
--- a/channels/interface.go
+++ b/channels/interface.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/joinedChannel.go b/channels/joinedChannel.go
index 7f058e3b532141f31a04b4ba9a30237a0e99e4f8..6d4fc2e7b22a8cc226d1f31df60125f9a6ead27a 100644
--- a/channels/joinedChannel.go
+++ b/channels/joinedChannel.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/manager.go b/channels/manager.go
index 0e931e359e477eb7a99b7c203f843b5ce2321587..66e112a35eb879b0a7128f39ab3b8dbcc7e19ca6 100644
--- a/channels/manager.go
+++ b/channels/manager.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/manager_test.go b/channels/manager_test.go
index 25fba2b86b6aeaef80d27930a0436091fe3e3fd8..fdf3e2bd2badb8e998916e9dabee75e247f7e416 100644
--- a/channels/manager_test.go
+++ b/channels/manager_test.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/messageTypes.go b/channels/messageTypes.go
index 1a02a40125e163a7b9c535796a3ffb3d056c30eb..5ac6e2de3c914131655e484599171c5ac6114d90 100644
--- a/channels/messageTypes.go
+++ b/channels/messageTypes.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import "fmt"
diff --git a/channels/messageTypes_test.go b/channels/messageTypes_test.go
index f3152c872775b58e2bae0b0f90569e587b0de190..170ebf0542de153bb23c2f2135c66ff597d633f7 100644
--- a/channels/messageTypes_test.go
+++ b/channels/messageTypes_test.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import "testing"
diff --git a/channels/messages.go b/channels/messages.go
index b4de7747adf6364bd8ba8a772196412d0fd01714..df77a9d92e5930569d1ae5e0e0ac69b91c8b7b88 100644
--- a/channels/messages.go
+++ b/channels/messages.go
@@ -1,5 +1,5 @@
 ////////////////////////////////////////////////////////////////////////////////
-// Copyright © 2020 xx network SEZC                                           //
+// Copyright © 2022 xx foundation                                             //
 //                                                                            //
 // Use of this source code is governed by a license that can be found in the  //
 // LICENSE file                                                               //
diff --git a/channels/messages_test.go b/channels/messages_test.go
index 26356e33c59b9f64751a76e1a198fc86d25d273d..cdd9a43fa2ce84042706a4d488527dd5153d166c 100644
--- a/channels/messages_test.go
+++ b/channels/messages_test.go
@@ -1,5 +1,5 @@
 ////////////////////////////////////////////////////////////////////////////////
-// Copyright © 2020 xx network SEZC                                           //
+// Copyright © 2022 xx foundation                                             //
 //                                                                            //
 // Use of this source code is governed by a license that can be found in the  //
 // LICENSE file                                                               //
diff --git a/channels/mutateTimestamp.go b/channels/mutateTimestamp.go
index 32a2e01869675535c35fd20e43cf77c4693a1bca..cbda21f7e1642696ef11616c10ea8aee7b1b5db1 100644
--- a/channels/mutateTimestamp.go
+++ b/channels/mutateTimestamp.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/mutateTimestamp_test.go b/channels/mutateTimestamp_test.go
index 03faa895deb6c1fc14292caca60499107752982e..759053ed9353c9c7b30e21d63d8435961cc5c004 100644
--- a/channels/mutateTimestamp_test.go
+++ b/channels/mutateTimestamp_test.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/nameService.go b/channels/nameService.go
index 4ac03eb0b31eeb0ad5d0dce0f1487a14d06f2b5e..0884cb9ec31205f0d952a6f93248a5ffde5d701b 100644
--- a/channels/nameService.go
+++ b/channels/nameService.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/send.go b/channels/send.go
index 558023c99def46f369bdb971bb74dadaed64a9c0..ee353c6361956d72997baa91703ce4d54dc4217b 100644
--- a/channels/send.go
+++ b/channels/send.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/send_test.go b/channels/send_test.go
index 633c815cdf5337ba4f6a3a95f557d0e8dfd0ca76..d1453344b75f48a0cc35b5fdd4a46840e1c38451 100644
--- a/channels/send_test.go
+++ b/channels/send_test.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/text.pb.go b/channels/text.pb.go
index 20dcb07ee9307c6d66aeaa3b5b5f118fc96d439b..1977a9261b3b05723628df325aeabc704688f877 100644
--- a/channels/text.pb.go
+++ b/channels/text.pb.go
@@ -1,5 +1,5 @@
-///////////////////////////////////////////////////////////////////////////////
-// Copyright © 2020 xx network SEZC                                           //
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
 //                                                                            //
 // Use of this source code is governed by a license that can be found in the  //
 // LICENSE file                                                               //
diff --git a/channels/text.proto b/channels/text.proto
index c2d15310a23b0f293af9f3f2cad7e07332269290..0abb7e6167a4b247fdfc930e22d1393cc098df79 100644
--- a/channels/text.proto
+++ b/channels/text.proto
@@ -1,5 +1,5 @@
-///////////////////////////////////////////////////////////////////////////////
-// Copyright © 2020 xx network SEZC                                           //
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
 //                                                                            //
 // Use of this source code is governed by a license that can be found in the  //
 // LICENSE file                                                               //
diff --git a/channels/userListener.go b/channels/userListener.go
index 4cc5f61522f5fe9aa3b5325f24e3be91d7119244..b454f3728d7109e2f22e306d1c2a5cec98a4d021 100644
--- a/channels/userListener.go
+++ b/channels/userListener.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (
diff --git a/channels/userListener_test.go b/channels/userListener_test.go
index 5a5a0035d0dea08e84940df7b7753b935b449587..78ec0120f26cc3f1db2c69c665a757ba3b908cf4 100644
--- a/channels/userListener_test.go
+++ b/channels/userListener_test.go
@@ -1,3 +1,10 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file                                                               //
+////////////////////////////////////////////////////////////////////////////////
+
 package channels
 
 import (