How Blockchain Consensus Algorithms Work (PoW vs PoS)

[Hudson Leo]

Consensus algorithms ensure all blockchain nodes agree on data validity, enabling secure, decentralized transaction verification without a central authority.

[Tiffany Frank]

Blockchain consensus algorithms ensure all nodes agree on transaction validity. Proof of Work (PoW) uses computational power to solve cryptographic puzzles, securing the network but consuming patient services support energy. Proof of Stake (PoS) selects validators based on token holdings, offering energy efficiency and scalability. Both aim to maintain trust, prevent fraud, and secure decentralized ledgers without central authority.