Murch

Does bitcoiny things at Chaincode Labs

Public Key

npub1j5mp526z5fkz9wkrk6mt5nzu43xndyrwkr8mnqngdqwytgcpc5vqcnsd5c

NIP-05 Address

murch@murch.one

Profile Code

nprofile1qqsf2ds69dp2ympzhtpmdd46f3w2cnfkjphtpnaesf5xs8z95vqu2xqpp4mhxue69uhkummn9ekx7mqpr4mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmp0j50jpc

Publishing to

nos.lol

nostr.bitcoiner.social

Author Public Key

npub1j5mp526z5fkz9wkrk6mt5nzu43xndyrwkr8mnqngdqwytgcpc5vqcnsd5c

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Last Notes

2025-05-15 14:55:18

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Bitcoin Core currently estimates feerates based on the time transactions of various feerates spend in the mempool before they appear in blocks. We ignore any transactions that we have not seen in the mempool.
We also have work in progress to estimate feerates based on the transactions in the mempool. https://github.com/bitcoin/bitcoin/issues/30392

2025-05-14 05:42:56

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https://nitter.space/LukeDashjr/status/1921234140717805769 https://image.nostr.build/72cbf2f65f8044d2ebe12ddeb1081fa5f6eb7fdc84ec64064d8a5750c8ce6972.jpg https://image.nostr.build/72cbf2f65f8044d2ebe12ddeb1081fa5f6eb7fdc84ec64064d8a5750c8ce6972.jpg
https://www.erisian.com.au/bitcoin-core-dev/log-2024-05-02.html#l-596

2025-05-13 21:17:33

I have been seeing some claims that "Bitcoin Knots is part of the Bitcoin Core project", that "Bitcoin Knots is just another release of Bitcoin Core", and that "Bitcoin Knots has more contributors than Bitcoin Core".
Bitcoin Core has about 40 regular contributors with over a thousand past contributors. The Bitcoin Core project releases its software on bitcoincore.org. Bitcoin Core releases are signed by several Bitcoin Core contributors and other community members. Releases are attested to by this community.
Bitcoin Core’s source code is released under the MIT License. The MIT License is a permissive open-source license permitting anyone to do almost anything with the licensed code.
Bitcoin Knots is a project fork of Bitcoin Core. Bitcoin Knots appears to be developed by a single developer pushing directly to master without peer review. Bitcoin Knots releases are composed of Bitcoin Core’s source code modified with a patch set of about 1400 commits. The same individual unilaterally issues releases. There is no indication that anyone else has ever contributed code or review directly to Bitcoin Knots. Bitcoin Knots is not endorsed by the Bitcoin Core project.
Claims to the contrary appear to be based on a unique individual perception of reality.

2025-05-07 14:53:31

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Yeah, actually. Right now it's basically certain that transactions with larger OP_RETURN outputs get included. People that don't care how quickly it gets confirmed have no issue, but it happens unreliably, so users that feel the need to write time-sensitive data commitments may prefer writing them to payment outputs in fake pubkeys. So yeah, it would be better if Op_RETURNs got mined reliably.

2025-05-06 15:48:31

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Could you clarify what you mean when you ask "why Libre Relay is not enough"?
Enough for what? What do you think is the goal here?

2025-05-06 15:44:14

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See e.g. https://mempool.space/tx/a527c6f4f4e7148f5b84cfb3a896dd02e9477fe9cf1f4b03c32f5c056c8a648c
https://mempool.space/tx/3183bd6ceebc2d39c0a3cfa0d06eb84d1161eaac1c26605e2eab62bfe48c1420
https://mempool.space/tx/64a4b1efaeedfe88596c118f7ba5b48cac498cbdb51bc3e8366edd0d20da2662

2025-05-06 06:02:22

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What makes you so sure? Have you tried it? From what I hear and see, the OP_RETURNBOT creates larger OP_RETURN outputs just fine.

2025-05-06 05:55:30

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Hey, dumb question. Given that is not possible to get large OP_RETURNs mined how come that more than twenty have been created this week alone?

2025-05-05 19:28:38

Ava is reviewing OP_RETURN live: https://www.twitch.tv/achow101

2025-05-05 17:19:19

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Mike Tidwell and I have collected a bunch of questions and answers around the OP_RETURN debate here: stacker.news/items/971277
I would hope that this collection helps with understanding the perspective of Bitcoin Core contributors.

2025-05-05 17:10:45

Mike Tidwell and I have collected a bunch of questions and answers around the OP_RETURN debate here: stacker.news/items/971277

2025-05-02 17:01:32

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Mh?

2025-04-28 19:11:05

I wrote a lengthy answer on a question about P2A and Ephemeral Dust: https://bitcoin.stackexchange.com/q/126098/5406
Please let me know if you find another mistake.

2025-02-22 01:35:41

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Thanks for giving it a read and the kind assessment!

2025-02-21 20:57:05

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Yeah, some of the number ranges are reserved for specific topics and the first few are reserved for Process BIPs.

2025-02-21 11:59:22

BIP 3 got merged. 🥳
https://github.com/bitcoin/bips/pull/1712 https://image.nostr.build/9f8c48c6f9ff293517390767ae59da675175ce7afd1df4214169f4a5cd5c6a78.jpg

2025-02-14 01:47:22

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Although this a few blocks ago might be even more so it: https://image.nostr.build/325e550ccb893789fe994515e79974ad5f4fca340f2c5be3d29f9825b1f39d9a.jpg

2025-02-14 01:44:57

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Yes

2025-02-03 22:29:38

Anyone want to read my new BIP Process proposal?
https://github.com/bitcoin/bips/pull/1712

2025-02-03 22:05:35

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The sender wallet would rebroadcast it. Some receivers may also rebroadcast

2025-02-03 17:45:31

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Celsius

2025-02-03 17:44:51

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Twitter became unbearable, so I am exploring other social media options

2025-02-03 17:39:52

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If that tapers off now, too, that would be the likely explanation

2025-02-03 17:39:18

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I'm wondering whether the increase in BRC20 lately was mostly the ancient transactions in the mempool getting processed.

2025-02-03 17:37:58

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Depends on what you mean with "good". On the one hand, demand for block space is now lower, on the other hand, it's less likely that Bitcoin devolves into a casino platform like Ethereum

2025-02-03 17:30:51

Runes have dropped off recently. https://image.nostr.build/d721da996209e56fa63e9c365dde4cbecb21a2acf3e96b62cd9e15e4858f712e.jpg

2025-01-31 20:28:14

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Was there you a specific point that you wanted to raise per linking to this report?

2025-01-31 20:24:45

Giving Nostr, Bluesky, and Stacker News another spin. Might even blog a bit more again.
https://image.nostr.build/884148249d55d37ed261b677997129e297955b03bb7d84701ff8c437be3a4da7.jpg

2025-01-31 17:05:55

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Maybe they restarted their node and didn't backfill their mempool

2025-01-31 16:18:44

Last night, the mempool shrunk to a depth of less than four blocks worth of unconfirmed transactions before it bounced back. It seems that we will soon see non-full blocks. https://image.nostr.build/e772400e34502e2647be1ca0e5c9e707934648b832c59c29752249a10568b1de.png
#mempoolreport

2023-06-21 00:36:51

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BTW, 0.12 also disabled “coin-age priority” by default as a mechanism to select transactions for 10% of the block: https://bitcoin.org/en/release/v0.12.0#relay-and-mining-priority-transactions

2023-06-21 00:30:55

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CPFP was introduced in 0.12: https://github.com/bitcoin/bitcoin/pull/6654/commits/5add7a74a672cb12b0a2a630d318d9bc64dd0f77

2023-06-21 00:15:50

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I accept no responsibility, but I’m happy to explain: https://b10c.me/blog/007-spending-p2tr-pre-activation/

2023-05-22 11:08:13

Happy Bitcoin Pizza Day!
🍕🍕

2023-03-10 20:56:47

We put out a new episode of the Chaincode Podcast yesterday. We had Andrew Chow chat with us about the Bitcoin Core wallet, PSBT, HWI, and more.
https://podcast.chaincode.com/2023/03/09/andrew-chow.html

2023-03-10 18:34:38

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I think I’d rather not special case it, but I saw that someone is working on a PR that will generally skip witness data before the `-assumevalid` block if you’re in prune-mode.

2023-01-13 14:12:08

Happy Friday!

2022-12-24 01:25:33

Does anyone know why NIP-19 uses bech32 instead on bech32m? 🤔

2022-12-24 01:01:11

I can attest to “-10°C, moderate winds, feels like -20°C” being quite cold. 🥶

2022-12-23 21:00:54

We will do a topic week about LDK 2023-01-04–10: https://bitcoin.meta.stackexchange.com/q/1155/5406

2022-12-23 20:52:50

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I see, also cool

2022-12-23 18:41:44

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WDYM, Blockstream satellite acts as a relay for your nostr messages if you pay for it? :D

2022-12-23 18:30:16

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Wondering whether there is there a way to synchronize message filters between multiple devices, or a way to set up email sorting server-side? Have not found anything good yet, though.

2022-12-23 18:28:56

I use an email account on four different devices. I have message filters set up in Thunderbird that sort everything into folders. But if that computer is not running, obviously the emails do not get sorted.
I do not want to manually recreate the filters on multiple devices. WWYD?

2022-12-22 14:21:50

GM,
The mempool is a bit deeper this morning since there was a 31-minute block followed by an 80-minute block in the wee morning hours. The mempool has not cleared in 4.5h since. Current depth is 4 blocks, next block fee is 4 ṩ/vB.
#mempoolreport

2022-12-22 05:27:42

Barely arrived, already “may or may not be notable”.—Nice that you can just do it yourself.

2022-12-22 05:21:34

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That's not too shabby

2022-12-22 00:43:11

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Thanks, I'll try

2022-12-22 00:37:07

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Aha! So this thing is on. Thanks Bob, nice to meet you.

2022-12-22 00:32:35

/me yells in to the void