By mining, you can earn cryptocurrency without having to put down money for it.

• Bitcoin miners receive bitcoin as a reward for completing "blocks" of verified transactions, which are added to the blockchain.

• Mining rewards are paid to the miner who discovers a solution to a complex hashing puzzle first, and the probability that a participant will be the one to discover the solution is related to the portion of the network's total mining power.

• You need either a graphics processing unit (GPU) or an application-specific integrated circuit (ASIC) in order to set up a mining rig.

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