An attack possible when a single entity controls majority hash rate, enabling double-spending and transaction censorship. Extremely expensive on Bitcoin's network but has occurred on smaller PoW chains.
An attack possible when a single entity controls majority hash rate, enabling double-spending and transaction censorship.
Extremely expensive on Bitcoin's network but has occurred on smaller PoW chains.
This mining concept is essential for understanding how proof-of-work blockchains secure transactions and create new coins. Important for miners evaluating profitability and hardware decisions.