#Proof of authentication

Bitcointalk Profile Link : https://bitcointalk.org/index.php?action=profile;u=1176088
Bitcointalk Username: D4ffyduck
Telegram Username: @untungdiliy

Link : https://d4ffyduck.blogspot.com/2018/10/excalibur-os.html
         https://d4ffyduckblog.wordpress.com/2018/10/26/ulasan-excalibur-os/
         https://telegra.ph/Ulasan-Excalibur-OS-10-26