ETA in 4 blocks (13.24 vMB from tip). Why is ETA in 4 blocks?
Estimation by https://blockstream.info block explorer which is explained here: https://github.com/Blockstream/esplora/issues/262#issuecomment-706230773
What does it mean by 13.24 vMB from tip? What is the tip?
There are 13.24 vMB of transactions between your transaction and tip as shown in the below image from https://mempool.observer
My transaction fee is 27.6 sat/vB which seems to be high enough.
Fee rate above 100 sat/vByte would have been high enough looking at the mempool right now.
Fee rate distribution of all unconfirmed transactions. Source: https://btc.bitaps.com