Good example of how stupid current lightning implementations are re: fees.
This tx paid $38/89,907sats to spend a single anchor output at 497 sats/vbyte (6x higher than necessary to get the tx mined), producing a single output just 6437 sats in size.
https://mempool.space/tx/158b0c7bfcdc32c4e3fed95c26b5b0f54fde5b7182d933fcff1563375e8ec77f
It's not a CPFP: the commitment transaction was mined 3 days before the anchor output was spent.
It's just an idiotic implementation that wasn't willing to forget about the anchor output; I know LND does this. The channel itself only had $2540 in capacity, so that one transaction spent 1.5% of the entire capacity on fees.
Peter Todd
npub1ej…3ndrm
2024-01-04 19:24:01
Author Public Key
npub1ej493cmun8y9h3082spg5uvt63jgtewneve526g7e2urca2afrxqm3ndrmPublished at
2024-01-04 19:24:01Event JSON
{
"id": "0d8bcca672f55614009c05f849fe208d69022100b64a9fdf57c762def8456df2",
"pubkey": "ccaa58e37c99c85bc5e754028a718bd46485e5d3cb3345691ecab83c755d48cc",
"created_at": 1704396241,
"kind": 1,
"tags": [
[
"r",
"https://mempool.space/tx/158b0c7bfcdc32c4e3fed95c26b5b0f54fde5b7182d933fcff1563375e8ec77f"
]
],
"content": "Good example of how stupid current lightning implementations are re: fees.\n\nThis tx paid $38/89,907sats to spend a single anchor output at 497 sats/vbyte (6x higher than necessary to get the tx mined), producing a single output just 6437 sats in size.\n\nhttps://mempool.space/tx/158b0c7bfcdc32c4e3fed95c26b5b0f54fde5b7182d933fcff1563375e8ec77f\n\nIt's not a CPFP: the commitment transaction was mined 3 days before the anchor output was spent.\n\nIt's just an idiotic implementation that wasn't willing to forget about the anchor output; I know LND does this. The channel itself only had $2540 in capacity, so that one transaction spent 1.5% of the entire capacity on fees.",
"sig": "13170954f703732c51635e35f61bdd6bccfcfd7bb06c06ef795824232ed4ea9b6a7b020239899ada365dc995a34fcb30e0c2efde6cc98744fb5fdaa830a682dd"
}