Blockchain Explorer Satoshi Nakamoto https://output.jsbin.com/kefuguxaze/ So, if there is a large number of transactions within the mempool and also you paid out a comparatively very low transaction cost, your transaction can remain unconfirmed for an extended period of time because miners/validators will find transactions with larger expenses initially. TraceHawk is https://bookmarkbooth.com/story20492890/blockchain-explorer-the-smart-trick-of-explorer-blockchain-ethereum-that-no-one-is-discussing-https-cutt-ly-3rj9ygbc