Every confirmed bitcoin transaction is irreversible. But is it possible to cancel unconfirmed bitcoin transactions? Why Bitcoin Transactions Remain Unconfirmed An unconfirmed bitcoin transaction occurs when a given transaction fails to receive a confirmation on the blockchain within 24 hours. All bitcoin transactions must be confirmed by miners. They need a minimum of three confirmations to be considered fully confirmed. There are two main reasons your bitcoin transaction may end up remaining unconfirmed. If theRead MoreThe post Can You Cancel Unconfirmed Bitcoin Transactions? Yes, Here’s How appeared first on Bitcoinist.com.