Blockchains are evolving, and consensus mechanisms are at the heart of it. Here's a quick look at the range of decentralized validation and authentication mechanisms in use today. Blockchain networks ...

Bitcoin miners collect and broadcast transactions in a block and verify their validity. Then they apply a cryptographic hash function of the previous block’s header to the new block. Finally, they try ...

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Proof of Work (PoW) is a consensus mechanism where miners use computing and compete to solve mathematical puzzles. When a puzzle is solved, transaction data is validated and added to the network, and ...

Ethereum co-founder Vitalik Buterin has published a lengthy blog post warning of the dangers of “stretching” Ethereum’s consensus past its core functions of validating blocks and securing the network.