Peercoin is a cryptocurrency designed to offer a more sustainable approach to blockchain security. It was launched in 2012 and is known for introducing the first proof-of-stake system. Instead of depending mainly on energy-intensive mining, Peercoin allows coin holders to help secure the network by staking their coins. The longer someone holds Peercoin, the more likely they are to create the next block. This design lowers the environmental cost of maintaining the chain and reduces the barriers to participation.

Peercoin still uses a small amount of proof-of-work, but only to help distribute new coins. Network security mainly comes from staking, which makes attacks more expensive and less practical. This hybrid model was built to improve long-term resilience. Another key feature is its focus on stability. Peercoin’s supply grows at a predictable rate, and its reward system encourages holders to keep coins in their wallets instead of constantly mining for new ones.

The blockchain also aims to stay simple so it can run reliably without constant upgrades. Because of this, Peercoin appeals to users who want a conservative and efficient network rather than a platform packed with complex smart-contract features. It has a slower development pace compared to newer projects, but it maintains a reputation for durability and low energy use. Peercoin remains an early example of how proof-of-stake can support a secure and environmentally friendly cryptocurrency system.