What is paste seed in app? Does it paste private key?
One way to get a #pubky address from a nostr privkey is
1. Go to : https://app.pkarr.org/?
2. Click on settings
3. Paste seed into app
4. Hit save
You now will have your own pubkey address and you will be able to set records in the censorship resistant (10 millon node) decentralized DNS
It also allows connection to 100+ different networks.