Once a block is verified by consensus and added to the chain, it cannot be changed or deleted, ensuring the integrity of every BTC ever moved.
No central authority like a bank oversees these transactions. Instead, a global network of computers (miners) validates the data using massive computational power. blockchain_btc
The Bitcoin network's hashrate—a measure of its total computing power—reached record levels in recent years, making it more secure than the combined capacity of tech giants like Google and Amazon. Once a block is verified by consensus and
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