BCK22: August 4 Digest version
https://www.youtube.com/watch?v=z4dWBHuZ60k&list=PLwroRXSVvlec5_oC96AbCLenG3ozYU21x&index=1
BCK22: August 5 Digest version
https://www.youtube.com/watch?v=N-wld8CdsVw&list=PLwroRXSVvlec5_oC96AbCLenG3ozYU21x&index=2
BCK22 Keynote speech: Mr.VitalikButerin
https://www.youtube.com/watch?v=4cgDtz2Ep34&list=PLwroRXSVvlec5_oC96AbCLenG3ozYU21x&index=3
BCK22 Keynote speech: Mr.DavidSchwartz
https://www.youtube.com/watch?v=Sq9mnAfFyps&list=PLwroRXSVvlec5_oC96AbCLenG3ozYU21x&index=4