Helium Blockchain Explorer https://output.jsbin.com/nisuteliyi/ A blockchain unconfirmed transaction refers to some transaction initiated by a person which is yet for being confirmed and recorded on the blockchain by a validator or miner. It can be also referred to as a zero-affirmation transaction. These transactions remain in the mempool (memory pool) https://geilebookmarks.com/story20694043/blockchain-explorer-website-a-simple-key-for-blockchain-explorer-btc-unveiled-https-cutt-ly-3rj9ygbc