[Ethereum] Pending transaction does not show on etherscan.io

Yes, Etherscan.io creates a centralized database which represents the past and present state of the Ethereum blockchain.

However, given any specific piece of data from Etherscan, it should be very trivial and quick to verify that data using an Ethereum node directly.

I think it is important to remember that not everything can be 'replaced' by a blockchain. Things like quickly searching for single piece of data in a large data set is probably better done on a central database versus a blockchain. As long as Etherscan itself is not verifying transactions on the Ethereum blockchain, there should not really be much to worry about.

So, I found the way to replace the transactions that were pending by adjusting the nonce. I did spend some more money on it though. I have also shifted from the Coinbase Wallet as it doesn't allow to adjust Gas and Nonce which I think are a absolute must if you don't want transactions to become stuck in a loop for days at end.