Proof of Stake Systems

Definition ∞ Proof of Stake systems are a class of blockchain consensus mechanisms where participants validate transactions and create new blocks based on the amount of cryptocurrency they hold and are willing to “stake” as collateral. This method selects validators probabilistically, favoring those with larger stakes, to secure the network. It aims to offer greater energy efficiency and scalability compared to proof of work. Participants earn rewards for their contributions to network security.
Context ∞ Proof of Stake systems are a prominent subject in cryptocurrency news, especially with Ethereum’s transition to this mechanism and the rise of various alternative layer-one blockchains. Discussions often center on their environmental benefits, economic security models, and potential for decentralization. Regulatory bodies are also examining Proof of Stake for its implications on investment and market structure.