Definition
Proof of Work is a blockchain consensus mechanism that requires miners to solve complex mathematical problems to validate transactions and create new blocks. It was introduced by Bitcoin and remains one of the most secure methods of achieving decentralized consensus. Miners compete using computational power, and successful participants receive rewards.
Simple Explanation
Proof of Work is a system where computers solve puzzles to secure a blockchain and verify transactions.
Example
Bitcoin miners compete to solve cryptographic puzzles and earn Bitcoin rewards.
Why It Matters
Proof of Work helps secure decentralized networks and prevent fraudulent activity.
Frequently Asked Questions
Which cryptocurrency uses Proof of Work?
Bitcoin is the most well-known example.
Does Proof of Work require mining?
Yes.
Why is it secure?
Because altering the blockchain requires enormous computing power.