Qtum Blockchain Explorer https://bbs.pku.edu.cn/v2/jump-to.php?url=https://cryptoexplorerhub.com So, if there is a large number of transactions in the mempool therefore you paid out a comparatively small transaction cost, your transaction can continue being unconfirmed for an extended time frame because miners/validators will select transactions with better costs very first. The mempo... https://userbookmark.com/story20323628/blockchain-explorer-tools-the-basic-principles-of-blockchain-explorer-tron-https-cutt-ly-3rj9ygbc