Blockchain Explorer History https://www.instapaper.com/p/16800964 So, if there is a large number of transactions while in the mempool and also you paid out a comparatively minimal transaction payment, your transaction can stay unconfirmed for an extended period of time given that miners/validators will select transactions with higher charges initial. Some transactions https://bookmarkssocial.com/story20771638/explorer-blockchain-ethereum-the-ultimate-guide-to-explorer-blockchain-neo-https-cutt-ly-3rj9ygbc