Universal Blockchain Explorer https://www.instapaper.com/p/16800704 A blockchain unconfirmed transaction refers to the transaction initiated by a user that is definitely but to get confirmed and recorded on the blockchain by a validator or miner. It truly is also known as a zero-confirmation transaction. These transactions stay in the mempool (memory pool) https://hedgedoc.k8s.eonerc.rwth-aachen.de/ftwXmwWQS3aRxqs88ptGCw/