Proof of work
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Proof of Work (PoW) stands as a foundational concept. PoW is a consensus mechanism that underpins the security and integrity of decentralized networks. It requires participants, known as miners, to solve complex mathematical puzzles to validate and add new transactions to the blockchain. This process not only verifies transactions but also safeguards the network from malicious actors. Despite its energy-intensive nature, Proof of Work has been a key factor in establishing trust and reliability within Web3 ecosystems.
Use
Biggest blockchain that uses proof-of-work is the Bitcoin blockchain. Other blockchains that use proof-of-work are Litecoin, Dogecoin Dash and Monero.