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The Coin Dispatch
Newsletter
BitcoinExplainer

How a bitcoin transaction gets confirmed

Your payment waits in a queue, a miner includes it in a block, and each later block makes reversing it harder.

Three women operating telegraph instruments at a table
Women operating Barclay telegraph instruments.

From send to block

When you send bitcoin, your wallet broadcasts a signed transaction to the network. It then waits, usually with others, until a miner includes it in a new block. Blocks arrive about every 10 minutes on average, but the timing varies.

What a confirmation means

One confirmation means your transaction is in a block. Each new block added afterward is another confirmation, making it harder to rewrite that history. Many services wait for several confirmations on larger payments.

Why it can take longer

Block space is limited. When demand is high, transactions paying lower fees can wait longer. Some wallets let you raise the fee on a pending payment.

Sources

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Disclosures

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