#proof of authentication
Joined campaign: YouTube, Linkedln, Instagram
Bitcointalk username: Penser
Linkedln profile link: https://www.linkedin.com/in/sergey-penzin-8a2171161/
YouTube profile link: https://www.youtube.com/channel/UCiMNq5b0hIVahD87GX85QIQ/channels?view_as=subscriber
Instagram url: https://www.instagram.com/penzin921/
Telegram username: @penser21