Blockchain Explorer For Bitcoin https://numberfields.asu.edu/NumberFields/show_user.php?userid=6213129 A blockchain unconfirmed transaction refers to a transaction initiated by a consumer that is still to become confirmed and recorded to the blockchain by a validator or miner. It's generally known as a zero-confirmation transaction. The mempool mainly queues the transaction and broadc... https://www.instapaper.com/p/16801288