hdseed, hdseed, and bitcoin-qt

Question

in bitcoincore, what is the use of hdseed please?

can we restore a wallet with it?

and above all an address with bitcoin on it

thank you ! for IT

Answer 1

in bitcoincore, what is the use of hdseed please?

See BIP32

can we restore a wallet with it?

See sethdseed. But I wouldn't use this on any existing wallet with any kind of transaction history. See creatwallet argument 3. I have never done this. Before using this I would make backups and test restoring them.

I would greatly prefer to restore a wallet by using the backup and restore feature in the GUI.

and above all an address with bitcoin on it

I'd guess so, if that address was derived from that seed using BIP-32 and is within the gap-limit. However I have never tried this.