PotCoin is a digital cryptocurrency aimed to empower, secure, and facilitate the Cannabis community, medicinal and recreational alike. The tagline for PotCoin goes as the following :- 'On every level of the Cannabis, Hemp and financial industries our users and supporters can entrust PotCoin to extend credibility, stability and security to this exponentially growing market and community.' It is based on the Proof of Work Scrypt algorithm with a total maximum supply of 420 million coins. PotCoin supports wallet software on most major platform including Windows, Mac, Linux, and Android. It also has a web wallet.
ARPA is a Secure Computation Network Compatible With Blockchains They propose a blockchain-based secure computation network of Multi-party Computation (MPC). ARPA cryptographically enables private smart contract, unprecedented data-at-use privacy protection, as well as scalable computational sharding.