Block Explorer Base Sepolia https://www.giveawayoftheday.com/forums/profile/1149930 So, when there is a lot of transactions inside the mempool and you also paid a relatively very low transaction charge, your transaction can stay unconfirmed for an extended time period considering that miners/validators will find transactions with larger costs 1st. An unconfirmed transaction is https://socialmarkz.com/story11283818/blockchain-explorer-api-blockchain-explorer-tools-fundamentals-explained-https-cutt-ly-3rj9ygbc