Inj Blockchain Explorer https://www.instapaper.com/p/16800964 So, if there is a large number of transactions while in the mempool so you paid a comparatively small transaction cost, your transaction can continue being unconfirmed for an extended period of time considering the fact that miners/validators will pick out transactions with larger charges first. https://fellowfavorite.com/story21451621/blockchain-explorer-litecoin-a-review-of-blockchain-explorer-usdt-https-cutt-ly-3rj9ygbc