Blockchain Explorer Multichain https://www.instapaper.com/p/16801185 A blockchain unconfirmed transaction refers to the transaction initiated by a consumer that may be nonetheless to get confirmed and recorded on the blockchain by a validator or miner. It can be also called a zero-affirmation transaction. The mempool generally queues the transaction and broadcasts it http://pandora.nla.gov.au/external.html?link=https://cryptoexplorerhub.com