The Blokaro Encyclopedia

Proof of Work (PoW) is the original blockchain consensus mechanism, made famous by Bitcoin. Miners compete to solve computationally expensive puzzles to validate transactions and add blocks to the chain. The difficulty automatically adjusts to maintain consistent block times.

The first and largest cryptocurrency by market cap. Bitcoin introduced the concept of a decentralised peer-to-peer electronic cash system secured by proof-of-work mining. It remains the dominant digital store of value.