diff --git a/blocksmurfer/__init__.py b/blocksmurfer/__init__.py
index 190bdef..736098e 100644
--- a/blocksmurfer/__init__.py
+++ b/blocksmurfer/__init__.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 import datetime
 from flask import Flask, send_from_directory, request
 from flask_babel import Babel
diff --git a/blocksmurfer/api/__init__.py b/blocksmurfer/api/__init__.py
index 1532cd0..34acadd 100644
--- a/blocksmurfer/api/__init__.py
+++ b/blocksmurfer/api/__init__.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask import Blueprint
 
 bp = Blueprint('api', __name__)
diff --git a/blocksmurfer/api/address.py b/blocksmurfer/api/address.py
index a0692ec..c362717 100644
--- a/blocksmurfer/api/address.py
+++ b/blocksmurfer/api/address.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask import jsonify, current_app
 from flask_restful import marshal, request
 from blocksmurfer.api import bp
diff --git a/blocksmurfer/api/block.py b/blocksmurfer/api/block.py
index 92278cb..f153ce1 100644
--- a/blocksmurfer/api/block.py
+++ b/blocksmurfer/api/block.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask import jsonify, current_app
 from flask_restful import marshal, request
 from blocksmurfer.api import bp
diff --git a/blocksmurfer/api/network.py b/blocksmurfer/api/network.py
index 9a3e71b..2af57e2 100644
--- a/blocksmurfer/api/network.py
+++ b/blocksmurfer/api/network.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask import jsonify
 from flask_restful import marshal
 from blocksmurfer.api import bp
diff --git a/blocksmurfer/api/structures.py b/blocksmurfer/api/structures.py
index 93c4c52..06f95a2 100644
--- a/blocksmurfer/api/structures.py
+++ b/blocksmurfer/api/structures.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask_restful import fields
 from flask_restful.fields import MarshallingException
 
diff --git a/blocksmurfer/api/transaction.py b/blocksmurfer/api/transaction.py
index 24b8a27..e8dc738 100644
--- a/blocksmurfer/api/transaction.py
+++ b/blocksmurfer/api/transaction.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask import jsonify, abort
 from flask_restful import marshal, request
 from flask_babel import _
diff --git a/blocksmurfer/explorer/search.py b/blocksmurfer/explorer/search.py
index 2b267c8..2080126 100644
--- a/blocksmurfer/explorer/search.py
+++ b/blocksmurfer/explorer/search.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from bitcoinlib.keys import Address, get_key_format
 from blocksmurfer.explorer.service import check_txid, network_code_translation
 from flask import redirect, url_for, flash
diff --git a/blocksmurfer/explorer/service.py b/blocksmurfer/explorer/service.py
index 8ca66c9..74453fd 100644
--- a/blocksmurfer/explorer/service.py
+++ b/blocksmurfer/explorer/service.py
@@ -1,10 +1,13 @@
 # -*- coding: utf-8 -*-
 #
-#    Blocksmurfer Crypto block explorer based on Bitcoinlib
-#    © 2020 January - 1200 Web Development <http://1200wd.com/>
+#    Blocksmurfer - Blockchain Explorer
 #
-#    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
 #
 
 from flask import abort, current_app, session
diff --git a/blocksmurfer/main/__init__.py b/blocksmurfer/main/__init__.py
index 013c57f..f11e63f 100644
--- a/blocksmurfer/main/__init__.py
+++ b/blocksmurfer/main/__init__.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask import Blueprint
 
 bp = Blueprint('main', __name__)
diff --git a/blocksmurfer/main/errors.py b/blocksmurfer/main/errors.py
index d70c9a1..e3fb87b 100644
--- a/blocksmurfer/main/errors.py
+++ b/blocksmurfer/main/errors.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask import jsonify, request, render_template, Blueprint
 from flask_babel import _
 import logging
diff --git a/blocksmurfer/main/forms.py b/blocksmurfer/main/forms.py
index db7fb02..d105744 100644
--- a/blocksmurfer/main/forms.py
+++ b/blocksmurfer/main/forms.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask_wtf import FlaskForm
 from wtforms import StringField, SubmitField, TextAreaField, IntegerField
 from wtforms.validators import InputRequired
diff --git a/blocksmurfer/main/routes.py b/blocksmurfer/main/routes.py
index 4316f0d..36388bd 100644
--- a/blocksmurfer/main/routes.py
+++ b/blocksmurfer/main/routes.py
@@ -1,3 +1,15 @@
+# -*- coding: utf-8 -*-
+#
+#    Blocksmurfer - Blockchain Explorer
+#
+#    © 2020-2021 March - 1200 Web Development
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+
 from flask import render_template, flash, redirect, url_for, request, current_app, session
 from flask_babel import _
 from config import Config