PIRATE (ARRR) is the best of Zcash (ZEC) combined with the best of Monero (XMR) and secured by Komodo's (KMD) Delayed-Proof-of-Work (dPoW) It’s a forced Shielded-transactions (z-transactions) only blockchain, meant for completely anonymous transactions. PIRATE is mined into a transparent address, but can only go into a shielded address from there. PIRATE is an independent blockchain built using the Komodo Platform assetchains. PIRATE is feature complete for its goal: complete anonymity.
Gapcoin is a new prime number based p2p cryptocurrency, which tries to eliminate the sticking points of other scientific currencies like Primecoin or Riecoin. It's a fork of Satoshi Nakamotos Bitcoin, a decentralized payment system which is independent of banks, governments and other centralized regulators. With Gapcoin, you will be able to anonymously send money around the globe in no time. The big improvement in comparison to Bitcoin is that instead of burning electricity for its own sake, Gapcoins Proof of Work function actually does useful work by searching for large prime gaps