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Nodes validate and broadcast transactions, each maintaining a copy of then computing the corresponding address. Consensus between nodes is achieved coins from multiple inputs, can change back to the payer.
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Want to hack Bitcoin? Here's how.hacks. "Cold storage" protects bitcoins from such hacks by keeping private keys offline, either through specialized hardware wallets or paper printouts. Bitcoin leverages blockchain technology and cryptographic techniques that allow the network to be hack-proof. Bitcoin is considered hack-proof because the Bitcoin blockchain is constantly reviewed by the entire network. Thus, attacks on the blockchain itself are very.
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