proof authentication join content campaign
Username : Natali1973 : https://bitcointalk.org/index.php?action=profile;u=1799292;sa=summary
Eth : 0x1424de082D6245Cf81c6FA62aC50d014f3c2350a
1 https://www.youtube.com/watch?v=wwQCigJK2VY
2 https://www.youtube.com/watch?v=g4RGT18ciuM