Due to people complaining last time I posted about this: GNU Taler is a privacy preserving payment system, but not a crypto-currency.
Due to people complaining last time I posted about this: GNU Taler is a privacy preserving payment system, but not a crypto-currency.
I have tried out their Kudos demo, which works great. Otherwise there is sadly not much you can try out yourself yet and self-hosting is a bit complicated from what I have seen in their documentation.