Note: The following instructions should be applied in Whonix-Workstation ™ (Qubes-Whonix ™:
1. Open a terminal.
If you are using Qubes-Whonix ™, complete the following steps.
Qubes App Launcher (blue/grey "Q") →
Whonix-Workstation ™ App Qube (commonly named anon-whonix) →
If you are using a graphical Whonix ™ with XFCE, run.
Start Menu →
2. Import the gpg public key of Electrum developer Thomas Voegtlin. 
Securely download the signing key.
Display the key's fingerprint.
gpg --keyid-format long --import --import-options show-only --with-fingerprint ThomasV.asc
Verify the fingerprint. It should show.
In early-2019, the output is identical to the following image.
Figure: Fingerprint Verification
Key fingerprint = 6694 D8DE 7BE8 EE56 31BE D950 2BD5 824B 7F94 70E6
The most important check is confirming the key fingerprint exactly matches the output below. 
Do not continue if the fingerprint does not match! This risks using infected or erroneous files! The whole point of verification is to confirm file integrity.
Add the signing key.
gpg --import ThomasV.asc
3. Download the Electrum AppImage.
Note: At the time of writing,
electrum-4.1.5 was the latest stable release. Before starting the Electrum download, browse to electrum.org/#download to verify the correct file path. Then download the file with scurl. 
5. Check the Electrum AppImage is not corrupted after download. 
To check the Electrum AppImage, run.
The following output indicates a corrupted and/or non-existent AppImage file.
electrum-4.1.5-x86_64.AppImage: HTML document, ASCII text, with very long lines
In that case, delete the file and try downloading the AppImage again.
6. Download the corresponding gpg signature.
It is necessary to verify the integrity of the AppImage with the correct signature.
Note: If users downloaded a later Electrum version at step 4, then modify the following command to match the corresponding signature file. 
7. Verify the integrity of the AppImage image.
Note: This command must be run in the same directory as the downloaded AppImage and signature.
gpg --verify electrum-4.1.5-x86_64.AppImage.ThomasV.asc electrum-4.1.5-x86_64.AppImage
If the file is verified successfully, the output will include
Figure: Good Signature 
gpg: WARNING: This key is not certified with a trusted signature!
gpg: There is no indication that the signature belongs to the owner.
The above "gpg: WARNING" can be ignored since it does not alter the validity of the signature related to the downloaded key. Rather, this warning refers to the level of trust placed in the developers signing key and the web of trust. To remove this warning, the developers signing key must be personally signed with your own key.
If the following "gpg: BAD signature" message appears, the AppImage has been corrupted or altered during the download process.
Figure: Bad Signature
In this event, delete both the AppImage and signature and either wait 10-15 minutes for the Tor circuits to change, or open up the Nyx Tor Controller in Whonix-Gateway ™ (Qubes-Whonix ™:
sys-whonix) and type "n" to create new Tor circuits. Wait for a random period of time before repeating the steps to download the AppImage and signature.
8. Change file permissions.
Make the electrum AppImage executable.
chmod +x electrum-4.1.5-x86_64.AppImage
To start Electrum on all platforms, run.
1. Configure a manual server connection.
When Electrum is started for the first time, users are met with the prompt:
"How do you want to connect to a server?".
Select server manually and press
Figure: Server Setting
2. Change the proxy settings.
The necessary settings are:
Next and the application should be fully functional.
Figure: SOCKS5 Proxy Configuration
Note: If Electrum is already set up but stream isolation was not enabled, then navigate to
Network in Electrum to bring up the server and proxy settings.
1. Create folder
mkdir -p ~/.local/share/applications
2. Create a new file
~/.local/share/applications/electrum.desktop using an editor.
3. Paste the following contents.
4. Save the file.
The procedure is now complete.
The launcher can be found here:
Start Menu →