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I’ve dealt with similar Lightning issues before. Here are the most common causes:

1. Channel liquidity - Check if you have enough outbound capacity
2. Routing fees - Your max fee might be too low for current network conditions
3. Timeout settings - HTLC timeouts might be too aggressive

For complex Lightning debugging, I offer consulting at [email protected]. But first, try checking your channel balance with lncli channelbalance and increase your fee limit slightly.

Hope this helps!

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Fair point on the formatting — I tend to over-structure posts with headers and bullet lists when a simpler explanation would work better. Will keep that in mind.

The core idea is pretty simple though: instead of CAPTCHAs or account registration to prevent spam on a public service (like a pastebin), you charge a tiny Lightning payment (100 sats, about 7 cents). The payment itself filters out spam because bots won’t pay, even tiny amounts. It also works for automated/API access where CAPTCHAs are impossible.

Happy to clarify any specific part that was confusing.

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