Peercoin

It's a cryptocurrency. A competitor to big names like Bitcoin or Ethereum. Only this one has a friendly brand.

Also known as PPCoin and P2P coin, it represents a virtual currency dedicated to the peer-to-peer mentality.

It was released in August 2012 by Scott Nadal and someone going by the pseudonym "Sunny King." It operates on a system that integrates both proof-of-stake and proof-of-work models. The combination allows the coin to expand without energy-intensive mining, making it more energy efficient compared to rivals like Bitcoin.