Unconfirmed Transactions

The Bitcoin mempool are broadcasted Bitcoin network transactions that have not been added to a block. Awaiting transactions in mempool are usually chosen for addition into the freshly mined block according to their transaction fee. However, when the transaction fee is low, it may take longer time for the confirmation of such transaction. In recent weeks, there was a considerable spike in the backlog of unconfirmed transactions on Bitcoin network thereby making the Bitcoin mempool reach its biggest size in…