http://e55lzoju6enqswtvm66sk3uqukcin3377ehgiorplj4d7qyssipls4yd.onion/en/blog/which-cryptocurrencies-offer-real-anonymity.php
Zcash (ZEC) Although not as efficient as PIVX, Zcash also runs on the zk-SNARK protocol. The user also needs at least 4Gb of RAM to enable the hidden transaction feature of the coin. Open ledger is still the default transaction option of Zcash. Still, it is a much more flexible option than the popular cryptocurrency, Bitcoin, because of its fungibility and coin interchangeability.