Proof of Work

Proof of Work is a consensus algorithm used by blockchains to validate transactions and create new blocks by requiring participants to perform intensive computational tasks. Miners compete to solve cryptographic puzzles, and the first one to find the solution earns the right to add the next block to the chain.

This process ensures that the network remains secure and decentralized, as it would be prohibitively expensive for an attacker to monopolize the computing power required. The work done by the miners acts as a physical barrier to entry and a deterrent against malicious activity.

It transforms energy into digital security, making it difficult to alter historical data. While energy-intensive, it provides a proven, battle-tested method for achieving agreement in a trustless environment.