To the best of my knowledge Bitcoin is not completely anonymous. There can
still be a trace to you if you buy the coins with a credit card. Also paying
in cash may not be completely anonymous because there may be CCTV at the
office you pay. It is difficult to evaluate how likely all this is but in any
case - it is physically possible.
Perhaps the only way to have fully anonymous BTC is to dig it yourself.
And the other thing is - logs. Do tor nodes store logs like VPN providers? Or
are they obliged to revealed info to authorities?
> they should not be able to decrypt the traffic to the second VPN service.
But they would still have your IP address in their logs which leads you.
