Kas Blockchain Explorer https://www.instapaper.com/p/16800477 A blockchain unconfirmed transaction refers to a transaction initiated by a consumer that is still for being confirmed and recorded over the blockchain by a validator or miner. It really is also referred to as a zero-confirmation transaction. These transactions stay in the mempool (memory pool) https://social4geek.com/story5999532/blockchain-explorer-transaction-id-ethereum-blockchain-explorer-fundamentals-explained-https-cutt-ly-3rj9ygbc