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0 sats \ 5 replies \ @k00b 11 Jan 2022 \ parent \ on: Visualizing HTLCs and the Lightning Network’s Dirty Little Secret | Peter R. Rizun bitcoin

This is a problem for tiny in flight HTLC's but ...

Despite how broken the above scheme sounds, it actually works reasonably well in practice. Bob has no real incentive not to give the money to Carol. If he doesn’t give it back, he’ll be no better off (the miner will keep the extra funds, not him) and probably worse off (Carol will likely close the channel since Bob has proven himself untrustworthy)

Unless you're an irrational bad actor, it's not much of a threat.

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1 sat \ 1 reply \ @verbiricha OP 12 Jan 2022 freebie

Note is that when those HTLCs in flight are fullfilled or time out their output is merged back to the commitment transaction. In practice is only a problem if you publish a commitment transaction with in-flight HTLCs that are below dust limit which I don't see happening often.

1 sat \ 1 reply \ @jeff 12 Jan 2022

Yah, I read the full thing. I read the above as:

it actually works reasonably well in practice FOR NOW.

...later in the article, it explains that as the value of a dust transaction climbs (ie, fees climb on L1), then it becomes more material.

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0 sats \ 0 replies \ @247bf84fda 25 Aug 2025 freebie

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0 sats \ 0 replies \ @247bf84fda 25 Aug 2025 freebie

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