Near Blockchain Explorer https://500px.com/p/pallesenlsmmack So, if there is a large number of transactions in the mempool and also you paid a relatively small transaction rate, your transaction can keep on being unconfirmed for an extended time period because miners/validators will choose transactions with greater charges initial. An unconfirmed transaction is https://onelifesocial.com/story6084964/blockchain-explorer-analytics-and-web-services-the-greatest-guide-to-blockchain-explorer-bitcoin-https-cutt-ly-3rj9ygbc