https://en.bitcoin.it/w/api.php?action=feedcontributions&feedformat=atom&user=Gtim 2026-04-17T10:30:05Z User contributions MediaWiki 1.43.8 https://en.bitcoin.it/w/index.php?title=Confirmation&diff=7416 2011-04-17T07:48:11Z

<p>Gtim: removed spam</p> <hr /> <div>To protect against double spending, a transaction should not be considered as '''confirmed''' until a certain number of blocks in the block chain confirm, or verify that the transaction. <br /> <br /> The classic bitcoin client will show a transaction as &quot;n/unconfirmed&quot; until 6 blocks confirm the transaction. Merchants and exchanges who accept [[trade|bitcoins as payment]] can set their own threshold. When there's loss due to double spending is nominal, payment confirms instantly as soon as it is seen on the network. The [[eWallet]] provider, [[MyBitcoin]] confirms after one block. Most [[:Category:Exchanges|exchanges]] and other merchants who bear the risk from double spending require 6 blocks, with the exception of [[CoinCard]] which considers payment confirmed after just two blocks.<br /> <br /> Coins generated aren't confirmed for 100 blocks, and the classic bitcoin client won't show the generated coins as confirmed until the 120 block.<br /> <br /> ==See Also==<br /> <br /> * [[Blocks]]</div>

Gtim