I like your added protections. Allowing people to filter their reported data might be enough to convince people to use it even without additional security. Don

I like your added protections. Allowing people to filter their reported data might be enough to convince people to use it even without additional security. Don't use sha256 for the hash, we need a slow hash like bcrypt or scrypt. Since entries only need to be updated when moving between time boxes or space boxes we can in fact configure this to be quite slow.