unless you make the association of your public key and your identity publicThe people who issued you your key will know . Unlike bitcoin , you can ' t just make up an anonymous key and then go vote with it . They could even open up a protection service so you can get a public key of a random vote of the desired result I think you mean private key . Also block chain cannot be changed Right . But why do you need a block chain rather than any other cryptographically verifiable temporal notary service ? Here , continue it here if you actually know enough about how it works to have answers <| sep |> These haiku are painful to watch <| sep |> If you have a space heater laying around , you could try that . <| sep |> That ' s not how this works .