ZIP: 224
Title: Pollard (provisional name) Shielded Protocol
Owners: Daira Hopwood <daira@electriccoin.co>
        Jack Grigg <jack@electriccoin.co>
        Sean Bowe <sean@electriccoin.co>
        Kris Nuttycombe <kris@electriccoin.co>
        Ying Tong Lai <yingtong@electriccoin.co>
Status: Reserved
Category: Consensus
Discussions-To: <https://github.com/zcash/zips/issues/435>