A virtual box, no. Or... There are some ideas about how to make it work if you run the hypervisor and want to allow trusted folks to audit that, say, you're n

A virtual box, no. Or... There are some ideas about how to make it work if you run the hypervisor and want to allow trusted folks to audit that, say, you're not logging or are running specific software. But to do it on 3rd party infrastructure, no. A physical box with some hacks, potentially - though even then there are challenges. https://www.havenco.com https://www.havenco.com is planning to get into that later this year in well-connected collos in the US and EU, with cameras and pluggable USB displays to allow users to verify machine identity. The target is $50/mo per machine and potentially lower (though that may require some kickstarter magic to do a Lima-like low-end hardware with serial console). For super low end, mount local LAFS or encfs+NFS or encfs+fuse+S3 storage, depending on the use case. On top of that though you'd have to set paranoia vs convenience tradeoffs - do you trust a KVM? Want to drive to the machine and do serial console yourself? FOSS KVM or cheap serial console box?