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What is a miner?

33. What is a miner?

1. A type of blockchain
2. An algorithm that predicts the next part of the chain
3. A person doing calculations to verify a transaction
4. Computers that validate and process blockchain transactions

Answer: D) Computers that validate and process blockchain transactions

Explanation:

Miners are accountants who keep track of all transactions on the blockchain. The idea is simple: if you want your payment to be valid, you need proof of payment. The miners are in charge of keeping track of your payment.