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.
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. blockchain_btc
At its core, the Bitcoin blockchain is a where transactions are grouped into "blocks" and added to a permanent chain. Once a block is verified by consensus and
There will only ever be 21 million BTC in existence, with over 19 million already mined. This scarcity is a primary driver of its long-term value. it cannot be changed or deleted