Nexa Blockchain Explorer https://k12.instructure.com/eportfolios/1098588/entries/3707785 A blockchain unconfirmed transaction refers to the transaction initiated by a user that may be nevertheless to be confirmed and recorded about the blockchain by a validator or miner. It's generally known as a zero-confirmation transaction. The mempool mainly queues the transaction and broadcasts i... https://www.instapaper.com/p/16800964