On Tue, Nov 15, 2022 at 03:36:08PM +1000, Anthony Towns via bitcoin-dev wrote: > On Tue, Nov 08, 2022 at 01:16:13PM -0500, Peter Todd via bitcoin-dev wrote: > > FYI I've gotten a few hundred dollars worth of donations to this effort, and > > have raised the reward to about 0.02 BTC, or $400 USD at current prices. > > Seems like this has been mostly claimed (0.014btc / $235, 9238sat/vb):
I'm turning it back on when (if) the mempool settles down. I've got more than enough donations to give another run at it (the majority was donated privately FWIW). There's a risk of the mempool filling up again of course; hard to avoid that. Right now of course it's really easy to double spend with the obvious low-fee/high-fee method as the min relay fee keeps shifting. > https://mempool.space/tx/397dcbe4e95ec40616e3dfc4ff8ffa158d2e72020b7d11fc2be29d934d69138c > > The block it was claimed in seems to have been about an hour after the > default mempool filled up: > > https://twitter.com/murchandamus/status/1592274621977477120 > > That block actually seems to have included two > alice.btc.calendar.opentimestamps.org txs, the other paying $7.88 > (309sat/vb): > > https://mempool.space/tx/ba9670109a6551458d5e1e23600c7bf2dc094894abdf59fe7aa020ccfead07cf The second is because I turned down the full-rbf reward to more normal fee levels. There's also another full-rbf double-spend from the Bob calendar, along the same lines: 7e76b351009326a574f3120164dbbe6d85e07e04a7bbdc40f0277fcb008d2cd2 I double-spent the txin of the high fee tx that got mined. But I mistakenly had RBF enabled in that double-spend, so while it propagated initially, I believe it was replaced when something (someone?) rebroadcast the high-fee 397dcb tx. > Timeline (utc) to me looks like: > > - 13:12 - block 763148 is mined: last one that had a min fee < 1.5sat/vb > - 13:33 - f503868c64d454c472859b793f3ee7cdc8f519c64f8b1748d8040cd8ce6dc6e1 > is announced and propogates widely (1.2sat/vb) > - 18:42 - 746daab9bcc331be313818658b4a502bb4f3370a691fd90015fabcd7759e0944 > is announced and propogates widely (1.2sat/vb) > - 21:52 - ba967010 tx is announced and propogates widely, since > conflicting tx 746daab9 has been removed from default > mempools > - 21:53 - murch tweets about default mempool filling up > - 22:03 - 397dcbe4 tx is announced and propogates widely, since > conflicting tx f503868 has already been removed from default > mempools Is that 22:03 time for 397 from your node's logs? It was originally announced hours earlier. From one of my full-rbf nodes: 2022-11-14T14:08:37Z [mempool] replacing tx 764867062b67fea61810c3858d587da83a28290545e882935a32285028084317 with 397dcbe4e95ec40616e3dfc4ff8ffa158d2e72020b7d11fc2be29d934d69138c for 0.00468 additional fees, -1 delta bytes > - 22:35 - block 763189 is mined > - 22:39 - block 763190 is mined > - 23:11 - block 763191 is mined > - 23:17 - block 763192 is mined including 397dcbe4 > > miningpool.observer reports both 397dcbe4 and ba967010 as missing in the > first three blocks, and gives similar mempool ages for those txs to what > my logs report: > > > https://miningpool.observer/template-and-block/0000000000000000000436aba59d8430061e0e50592215f7f263bfb1073ccac7 > > https://miningpool.observer/template-and-block/00000000000000000005600404792bacfd8a164d2fe9843766afb2bfbd937309 > > https://miningpool.observer/template-and-block/00000000000000000004a3073f58c9eae40f251ea7aeaeac870daeac4b238fd1 > > That presumably means those pools (AntPool twice and "unknown") are > running with large mempools that didn't kept the earlier 1.2sat/vb txs. To be clear, you think that AntPool and that other exchange is running with a larger than normal max mempool size limit? You mean those miners *did* keep the earlier 1.2sat/vb tx? > The txs were mined by Foundry: > > > https://miningpool.observer/template-and-block/00000000000000000001382a226aedac822de80309cca2bf1253b35d4f8144f5 > > This seems to be pretty good evidence that we currently don't have any > significant hashrate mining with fullrbf policies (<0.5% if there was a > high fee replacement available prior to every block having been mined), > despite the bounty having been collected. Oh, we can put much lower bounds on that. I've been running OTS calendars with full-rbf replacements for a few months without clear evidence of a full-rbf replacement. While there was good reason to think some miners were mining full-rbf before a few years back, they probably didn't bother to reapply their patches each upgrade. `mempoolfullrbf=1` is much simpler to use. -- https://petertodd.org 'peter'[:-1]@petertodd.org
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