Transaction confirmation

A transaction is confirmed once it has been included in a block and accepted by the network. Until then it is pending: broadcast, visible, but not yet final. Confirmation is the moment the network agrees your transfer happened and writes it into the shared record. Before that point, treat it as a promise, not a payment.

Here is the sequence. You send funds and the transaction enters a waiting area called the mempool. Validators or miners pick transactions from that pool and pack them into the next block. When your transaction lands in a block, that is one confirmation. Each new block added on top counts as another.

Why count confirmations at all? Because a single block can, in rare cases, be reversed if the network briefly disagrees on the latest blocks. Each block stacked on top makes that reversal far harder. On Bitcoin, 6 confirmations is the long-standing convention for treating a payment as final, which takes roughly 60 minutes given a block every 10 minutes or so. Faster chains confirm in seconds, so they may expect 20 or 30 confirmations for the same comfort. More blocks, more certainty.

The wait depends on what you paid and how busy the chain is. A higher network fee usually buys a faster first confirmation, because validators take the better-paying transactions first. When the chain is congested, even a fair fee can leave you waiting, and your balance will not show up at the other end until that first block lands.

For someone using an on-ramp, this is why crypto sometimes takes a few minutes to appear after a purchase. The system is waiting for confirmations before it releases the coins to your wallet address. Do not panic at a pending status, and do not resend. Check the transaction on a block explorer using its ID, and let the confirmations roll in.