#Proof of authentication:
Article Campaign.
Article URL: https://steemit.com/arweave/@frenchandrey/arweave-khranenie-dannykh-na-blokcheine-obzor-proekta

My username telegram: french_ru
My eth: 0xCE4C51Ce9BEfF1702C3251C01960ffED275b7fe1

25/05
Video Campaign
Video URL: https://www.youtube.com/watch?v=lYxiCcoFLsg&t=17s