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can I send arbritary data in a lightning transaction?

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2021-12-15 10:08:45 UTC
something like OP_RETURN in blockchain layer, can we send arbitrary data along with a transaction is the lightning network? if yes how do i get started doing so?
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2022-03-25 06:09:16 UTC
<p>Kinda. You can do that by using LND's keysend, although it's not enabled by default:</p><p><a href="https://docs.lightning.engineering/lightning-network-tools/lnd/send-messages-with-keysend" target="_blank">https://docs.lightning.engineering/lightning-network-tools/lnd/send-messages-with-keysend</a></p><p><br></p><p>That's basically what juggernaut uses to send messages:</p><p><a href="https://www.getjuggernaut.com" target="_blank">https://www.getjuggernaut.com/</a></p>