Consensus Core

Definition ∞ The consensus core refers to the fundamental set of rules and algorithms that enable a decentralized network to agree on the validity of transactions and the order of blocks. This core mechanism ensures the integrity and security of the blockchain by establishing a single, immutable record. It dictates how participants verify and append new information to the distributed ledger. Any alteration to this core requires broad network agreement.
Context ∞ The consensus core is a constant subject of development and optimization within blockchain technology, aiming for improved scalability and efficiency without compromising security. The current state involves various proof-of-work and proof-of-stake implementations, each with distinct properties. A key debate concerns the long-term sustainability and energy consumption of different consensus mechanisms. Future iterations will likely focus on hybrid models and novel approaches to achieve faster finality and greater decentralization.