Recovering a Core Lightning channel after losing the node database

[andersaamodt]

Hi,

I lost the server running my Core Lightning node. I still have the hsm_secret, but my emergency backup predates a channel I opened with the ACINQ node.

Could someone at ACINQ help me recover the funds using the channel state on your side? What information would you need from me first?

Thanks!

[andersaamodt]

@t-bast, could you help with the recovery question above? Is there a way to recover the channel using any channel state ACINQ still retains, and what information would you need from me?

Thanks!

[sstone]

You should first ask the Core Lightning team, we have no idea how their hsm secrets or backups work.
They will tell you if you can either "resume" the channel (doubtful...), or how to generate private keys to spend your outputs if we force-close the channel (i,.e. publish our commitment transaction for this channel) which is about all we can do. They will also tell you what you may need from us.