Definition
Consensus is the process through which participants in a blockchain network agree on the validity of transactions and the state of the ledger. Consensus mechanisms such as Proof of Work and Proof of Stake help decentralized networks operate without a central authority. By ensuring all participants follow the same rules, consensus prevents fraud and double-spending.
Simple Explanation
Consensus is the method blockchain networks use to agree on what transactions are valid.
Example
Bitcoin uses Proof of Work consensus to validate transactions and secure the network.
Why It Matters
Consensus allows decentralized networks to function securely and reliably.
Frequently Asked Questions
Why is consensus important?
It ensures all participants agree on the same data.
What are common consensus methods?
Proof of Work and Proof of Stake.
Does every blockchain use consensus?
Yes, all blockchains require a way to validate transactions.