There are ways to do zero-knowledge proofs in Bitcoin too, for example: https://bitcoincore.org/en/2016/02/26/zero-knowledge-contingent-payments-announcement/ h

There are ways to do zero-knowledge proofs in Bitcoin too, for example: https://bitcoincore.org/en/2016/02/26/zero-knowledge-contingent-payments-announcement/ https://bitcoincore.org/en/2016/02/26/zero-knowledge-conting... It is pending a Bitcoin softfork (segregated witness) (edit: actually I don't think it depends on this), and I don't think anyone has implemented something approximating z-addresses on this yet, but the opportunity is there.