Sia addresses both of these. 1) You have full control over which hosts you store data on; if Amazon makes their data centers available on Sia, you can choose t

Sia addresses both of these. 1) You have full control over which hosts you store data on; if Amazon makes their data centers available on Sia, you can choose to store at 1x redundancy with them. I will note, though, that erasure coding can get you many nines of reliability at fairly low redundancy, as long as the hosts aren't completely flaky. And you can do even better if you actively replace hosts as soon as they go offline. 2) The only thing you need to trust here is the client-side encryption code, which is fairly straightforward. And if you're really paranoid, nothing prevents you from using your own encryption scheme instead of our default one. Disclaimer: I am a Sia core dev.