#Proof-Of-Authentication

Bitcoiantalk username: febrian1705
Telegram: @febrian

Link Article Campaign

1.https://steemit.com/eos/@febrian1705/launch-of-excalibur-os-in-the-blockchain-world
2.https://steemit.com/excalibur/@febrian1705/exchalibur-os

ETH :0xEdD4ee81C7033c4A5208690fF5bB516Df5499c19