diff --git a/src/core/lib/Bech32.mjs b/src/core/lib/Bech32.mjs
index 9e4f9be5..4e6ddb38 100644
--- a/src/core/lib/Bech32.mjs
+++ b/src/core/lib/Bech32.mjs
@@ -13,6 +13,27 @@
   * Javascript code below taken from:
   * https://github.com/geco/bech32-js/blob/master/bech32-js.js
   * Implements various segwit encoding / decoding functions.
+  * 
+  * MIT License
+  * 
+  * Copyright (c) 2019 geco
+  * Permission is hereby granted, free of charge, to any person obtaining a copy
+  * of this software and associated documentation files (the "Software"), to deal
+  * in the Software without restriction, including without limitation the rights
+  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  * copies of the Software, and to permit persons to whom the Software is
+  * furnished to do so, subject to the following conditions:
+  * 
+  * The above copyright notice and this permission notice shall be included in all
+  * copies or substantial portions of the Software.
+  * 
+  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  * SOFTWARE.
 */
 
 // Segwit alphabet
@@ -126,8 +147,29 @@ export function segwitChecksum(str) {
 
 // ################################################ BEGIN SEGWIT ENCODING FUNCTIONS #################################################
 
-// Taken from https://github.com/sipa/bech32/blob/master/ref/javascript/bech32.js
 // We use this to encode values into segwit encoding.
+// Taken from https://github.com/sipa/bech32/blob/master/ref/javascript/bech32.js
+
+// Copyright (c) 2017, 2021 Pieter Wuille
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
 /**
  * Expands the human readable part.
  * @param {string} hrp