Oddbean new post about login | logout Noob Q: How do I export an zpub or xpub from a Core LN node wallet? I have elect-rs and RTL set up too if that makes anything easier. Just want to have a watch-only wallet available for the on-chain wallet.
good question ! it definitely uses some kind of deterministic derivation for the wallet keys, but no idea which one or if this is possible
See here: https://walletsrecovery.org/
This can dump an xpub from cln: https://docs.corelightning.org/reference/lightning-hsmtool
Thanks, it outputs descriptors for wpkh, sh and tr. I want to import this to Sparrow but it requires to import a file (or scan qr) so I tried to just copy/paste the descriptors into a file and import that but then I get an error that it's not valid. Any ideas what I'm doing wrong here? What is the descriptors file supposed to look like?
it probably imports BSMS files (https://github.com/bitcoin/bips/blob/master/bip-0129.mediawiki) it's been a while i've used sparrow, are you really sure there isn't a way to create a watch-only wallet by specifying custom descriptors and derivation paths in the ui?