Block Explorer Proton https://www.demilked.com/author/crawford18sheehan/ So, if there is a lot of transactions within the mempool and also you paid a relatively very low transaction cost, your transaction can continue to be unconfirmed for an prolonged time frame given that miners/validators will choose transactions with higher service fees 1st. It is https://eternalbookmarks.com/story20633613/explorer-blockchain-usdt-indicators-on-blockchain-explorer-meaning-you-should-know-https-cutt-ly-3rj9ygbc