Bitcoin Core is the reference implementation of the Bitcoin protocol. When transactions are broadcast to the network but not yet included in a block, they reside in the memory pool (mempool).
Unconfirmed transactions in the memory pool represent pending transfers waiting for miner confirmation. The mempool serves as a waiting area where transactions are verified and prioritized based on fee rates.
Bitcoin Core users can monitor their unconfirmed transactions through the console or various interface tools. Transaction confirmation time depends on network congestion and the fee attached to the transaction.
High fee transactions typically get confirmed faster as miners prioritize them for inclusion in new blocks. Understanding memory pool dynamics is crucial for efficient Bitcoin transaction management.