107 sats \ 3 replies \ @justin_shocknet 13h \ parent \ on: lnd backups bitcoin
It's kind of trusted unless you have recourse, since the SCB basically asks the peer to force close the channel as a signal that you don't have the latest state to do it gracefully yourself.
If they're willing to wager that you completely lost the state, as in don't have a watchtower somewhere, they could broadcast an old state and steal some funds that were sent to your side of the channel. The risk to them is that you might have set a trap, and the latest state in a watchtower somewhere ready to issue a justice tx should they attempt this.
If the peer is altogether unreachable, recovery gets more complicated and involves external chantools that Lightning Labs has available, this too would require the seed phrase.
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Thanks for your help. I was able to test backup with the seed phrase and static channel backup and everything worked as expected. What would the next step be to back up the node in such a way as to not have to trust the peer to not try and steal your funds with an old state and to be able to recover funds if peer is offline? I understand there’s a lot of things that can go wrong if your backup is not completely up to date and your accidentally broadcast an old state. But there must be some way to safely do it.
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A watchtower is basically a second node to deal with some of these issues
Even if everything goes perfectly in a recovery scenario, closing channels and replacing them can get expensive, so it's best to make sure the node environment is a resilient one so it doesn't come up... I suggest an Nvme with a laptop battery at minimum
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