I'm running a bitcoin core full node with Tor and I've configured a hidden service for that. The point is: bitcoin core log shows me an onion address which is very smaller than the one I found in /var/lib/tor/bitcoin-service/hostname. I noticed that other peers in the network connect with me using the small .onion address. Which is the difference between these two types of onion address? Are they correlated eachother in some way? I've also tried to use the longer . onion address in the externalip option inside bitcoin.conf, but it gave me an error.