The Blockchain Explained

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MP4 (Source) 1920 x 1080 791.63 MB
MP4 (360p) 640 x 360 35.85 MB
MP4 (480p) 854 x 480 38.72 MB
MP4 (720p) 1280 x 720 56.84 MB
MP4 (1080p) 1920 x 1080 165.37 MB