Agreed. Mic placement should consider sound quality first and foremost.
This is actually not the first blockchain-based solution for media distribution and trustless payments. For those parts of the filmmaking business, there's an established and ongoing project that's already much further along in its development called LBRY: http://lbry.io. Granted, it's not exactly geared toward cast or crew payments or contracts, but it is a distribution platform.
Sony would tell you it's the FS5, and in practice they do cut pretty well together, being the same sensor and using the same color science. The FS5 has less flexibility in terms of color balance, and the readout is noisier, so find the setting that works on that camera, and then set the FS7 accordingly. In cases where you're using different camera models, you should always aim for the "least common denominator."
I hope Fillex at least puts a warning in their product packaging that it's actually against the law in the U.S. to fly drones after civil twilight without a special waiver from the FAA.
Deakins didn't shoot "Raising Arizona," "Burn After Reading," "Inside Llewyn Davis," or any of the Coen Brother's films prior to "Barton Fink" in 1991.