Block Explorer Open Source https://bbs.pku.edu.cn/v2/jump-to.php?url=https://cryptoexplorerhub.com So, when there is a lot of transactions within the mempool and also you paid a relatively small transaction cost, your transaction can keep on being unconfirmed for an extended time period considering the fact that miners/validators will pick out transactions with larger fees initially. https://travialist.com/story11143090/tron-blockchain-explorer-ltc-blockchain-explorer-an-overview-https-cutt-ly-3rj9ygbc