Shaping the Industry: 7 Defining Moments of Proof of Work vs Proof of Stake
5. The First Successful Implementation of Proof of Stake

In 2020, the cryptocurrency network Cardano successfully implemented PoS, marking the fifth major moment. This achievement proved PoS could be successfully deployed on a large-scale blockchain. Cardano’s implementation showcased PoS's advantages, including greater operational efficiency, scalability, and security. It was a landmark event that demonstrated the practicality of PoS in a real-world context, further validating its potential as an alternative to PoW.