this is followup on question #85475:

I have learned in previous question that there is an automatic refund mechanism in case of force closure of a channel, except for some very rare circumstances. I would like to ask about two of those circumstances: ,

1-how to "back up your channel state" or how to back up your seed in lightning? (is "channel state" here a synonym for "seed"?)

And why do people say the "seed" works differently in lightning compared to btc - differently how? ,

2-how can you "give your channel to a watchtower" ? IN practical terms, if you use a current lightning wallet


1 Answer 1


For clightning I have created a video that explains how to restore your node with seed and state you can watch it here: https://youtu.be/-S7pQOw36vI

The general idea is that hsm_secret sites your seed in binary and the sqlite3 datebase sites your channel states.

I believe in lnd the process would be similar only that they give you the seed words explicitly instead of hsm_secret. They should also have some database or file in which they site channel state.

As for watchtowers. Currently to the best of my knowledge there are no such services available.

  • thx. @rene-pickhardt - and what about other wallets? what with eclair, how backup their seed? and if watchtowers do not exist, why this guy "stefanwouldgo" in this thread referenced to watchtowers? bitcoin.stackexchange.com/questions/85475/… Mar 24, 2019 at 21:47
  • Can't say for eclair but would assume similar to lnd. Stefanwouldgo probably mentioned watchtowers as the entire protocol is build with watching services in mind. So I guess most people expects them to come eventually Mar 24, 2019 at 21:54
  • Please read my comments in the other thread! Mar 26, 2019 at 8:52

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