Lightning Network Watchtower

Watchtowers send LN justice transactions when they detect an outdated channel close.

When your node goes down for any reason for extended periods of time, there is a possibility of an attack on your channels. A node on the other side of your channel may attempt to force close with an earlier state where they had more of the funds on the channel than the current state is. In this scenario, watchtowers will send a punishing transaction on your node's behalf, taking all the funds of the attacker on the channel and sending them to your node's on-chain wallet.

Watchtowers on LN can only issue the punishing transaction if an attack was detected and can not change the transaction. Therefore, as a watchtower client you don't need to trust the watchtower. You can add more than one watchtower to your node. Learn more about LND Watchtowers.

LN+ and Voltage logos in a pill

LN+ and our technology partner Voltage.Cloud offers a free highly robust altruistic watchtower you can connect to with your node to ensure your funds are secure. We currently offer watchtowers for LND, and planning to bring you the c-lightning version called 'Eye of Satoshi' as well in the future.

Become a watchtower client by taking the following steps using lnd in command line. Pick TOR or Clearnet for the second step depending on your setup. If you have questions, search the Q&A and ask if no answers found.

Enable Watchtower client

lnd --wtclient.active

Either add watchtower on TOR

lncli wtclient add 0301135932e89600b3582513c648d46213dc425c7666e3380faa7dbb51f7e6a3d6@tower4excc3jdaoxcqzbw7gzipoknzqn3dbnw2kfdfhpvvbxagrzmfad.onion:9911

Or add watchtower on Clearnet

lncli wtclient add 0301135932e89600b3582513c648d46213dc425c7666e3380faa7dbb51f7e6a3d6@44.237.235.163:9911

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Check out our technology partner

Voltage Cloud

With Voltage you can spin up a Lightning Network node or BTCPay Server in just minutes. It runs in the cloud on enterprise-grade hardware. This is a great option for a quick and easy deployment.

Visit Voltage Cloud