Definition ∞ Consensus models are the fundamental rules and protocols by which distributed networks, such as blockchains, agree on the validity of transactions and the state of the ledger. These models ensure that all participants maintain an identical and accurate record of all operations. Different models employ distinct mechanisms to achieve this agreement, influencing network speed, security, and decentralization.
Context ∞ The ongoing evolution and comparison of consensus models remain a critical topic in blockchain technology discussions, directly impacting the performance and security of various digital assets. Debates often revolve around the trade-offs between energy consumption, transaction throughput, and the degree of decentralization achieved by different models like Proof-of-Work and Proof-of-Stake. Future developments will likely focus on optimizing these models for scalability and sustainability.
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