The blockchain is the core technology behind Bitcoin. It works as a public, digital ledger that stores all Bitcoin transactions in chronological order.
Here’s how it works:
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Transactions are grouped into blocks
When you send Bitcoin, your transaction is bundled with others into a “block.” -
Miners validate the block
Miners are special participants in the network who solve complex mathematical puzzles to confirm the block. This process is called “proof of work.” -
Blocks are linked together
Once confirmed, the new block is added to the chain of previous blocks. This chain is permanent and nearly impossible to alter — hence the term blockchain. -
Everyone can verify the data
All this happens transparently. Anyone with internet access can download the Bitcoin blockchain and verify any transaction from day one.
This system makes Bitcoin secure, censorship-resistant, and transparent. It also removes the need for a trusted third party.
