#Proof of authentication
Joined:
bog ; https://token11.blogspot.com/2018/11/launch-of-excalibur-os-in-blockchain.html
https://token11.blogspot.com/2018/11/exchalibur-os.html
https://token11.blogspot.com/2018/11/excalibur-os-worlds-first-os-with.html
youtube : https://youtu.be/y_frsEblAvo
telegram Username: @ulilulil
Bitcointalk Username: entot berot
Bitcointalk Profile Link: https://bitcointalk.org/index.php?action=profile;u=2329285
mytherwallet: 0x14a53E86Ea5dD86d519040E88c5068185fe8a274