A consensus protocol is a set of rules and procedures that govern the process of achieving agreement among a group of distributed nodes in a network. It ensures that all nodes in the network agree on the validity and order of transactions recorded in a blockchain or distributed ledger. This agreement is crucial for maintaining the integrity and trustworthiness of the network by preventing malicious actors from tampering with the data. Consensus protocols achieve this by establishing a mechanism for nodes to reach a common understanding and validate transactions collectively.
Avalanche® is a DAG-optimized consensus protocol–high-throughput, parallelizable, and simple to prune. The Exchange Chain (X-Chain) implements the Avalanche consensus protocol.
To learn more about the Avalanche consensus protocol please also see the following article.
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