What a Transaction Confirmation Is on the Blockchain
A confirmation is a record of your transfer written into a block. Here's why multiple confirmations are needed, what "unconfirmed" means, and how this shows up during a swap.
A transaction confirmation is your transfer being written into the blockchain. The more confirmations a transaction has, the more settled it is considered. After you send crypto, services wait for a certain number of confirmations before crediting the deposit.
Why can't a transfer be credited instantly?
The blockchain doesn't write all transactions at the same moment. First, your transaction enters the network's queue. Then a block is produced and includes it. That first inclusion is one confirmation. Each block added on top counts as another.
Why do different networks require different confirmation counts?
The slower the blocks and the larger the amount, the more confirmations are needed to be safe. Bitcoin produces blocks roughly every ten minutes, so larger transfers often wait for several blocks. Tron and Solana produce blocks in seconds, so one or two confirmations are usually enough.
What does "unconfirmed transaction" mean?
It means your transfer has been broadcast to the network but hasn't been included in a block yet. Under normal conditions this resolves in seconds or minutes. If the network is congested or the fee was set too low, the transaction can sit in the queue for longer.
How does this appear during an exchange?
The exchange waits for your deposit to reach the required number of confirmations before continuing. The order page usually shows the progress: confirmations received and confirmations required. That wait is the blockchain doing its job, not the service causing a delay.
