Blockchain Explorer Map https://k12.instructure.com/eportfolios/1098588/entries/3707785 So, if there is a lot of transactions during the mempool and you also paid out a comparatively very low transaction price, your transaction can continue being unconfirmed for an prolonged length of time because miners/validators will pick transactions with increased service fees very first. In https://extrabookmarking.com/story20612701/eth-blockchain-explorer-the-best-side-of-blockchain-explorer-search-https-cutt-ly-3rj9ygbc