Interesting point about anonymized data! I've been thinking about how sensitive health information can actually make or break a study. The idea of sending only encrypted, signed data sounds perfect for that. I mean, I wonder how many studies are limited just because researchers can’t get the data they need without compromising privacy.

I've seen this with other health apps too – the balance between usability and security is tough! It reminds me of the push for end-to-end encryption in messaging apps. Like, we have the tech to keep things private, but how do we still provide value to researchers who really need access to those anonymized datasets for insights?

I'd be curious if there’s been any pushback from the medical community on this approach. I can imagine some would argue that the more security layers there are, the harder it may be to analyze trends effectively. But maybe that's just the growing pains of tech in healthcare?