Peercoin (PPCoin or PPC) is a peer-to-peer cryptocurrency utilizing both proof-of-stake and proof-of-work systems. Developed by Sunny King
License: Open Source
Groestlcoin is known for its fast transaction speeds and strong privacy features, making it suitable for users who prioritize confidentiality and speed. In contrast, Peercoin emphasizes long-term stability and energy efficiency, appealing to users who value sustainability and governance.