Murch

# UTXO set counts change between 2025-01-01 and 2025-07-14 P2A: +19 P2TR: +28,167 P2WPKH: -10,993,297 P2WSH: +504,757 P2SH: -1,892,424 P2MS: +592,588 P2PK: -600 P2PKH: -6,881,365 ## 2025-01-01 P2A: 1 P2TR: 57,851,467 P2WPKH: 56,806,770 P2WSH: 1,627,820 P2SH: 14,993,160 P2MS: 2,016,773 P2PK: 45,731 P2PKH: 52,278,323 ## 2025-07-14 P2A: 20 P2TR: 57,879,634 P2WPKH: 45,813,473 P2WSH: 2,132,577 P2SH: 13,100,736 P2MS: 2,609,361 P2PK: 45,131 P2PKH: 45,396,958

Localhost Research got its non-profit status: https://lclhost.org/blog/501c3/ 🥳

Okay, I'm getting old or something, but can someone explain what people mean when they use the "call me" symbol: 🤙? Clearly it's not "call me" in the contexts that I'm seeing it used.

@satsie 🇹🇭 🇱🇹 made a splendid new zine! About Silent Payments this time. Check it out!

If you were at the Las Vegas #bitdevs today and you're owed the nitty gritty details of Pay to Anchor, TRUC transactions, 1p1c, and ephemeral dust, here is the Stack Exchange topic that was referenced: https://bitcoin.stackexchange.com/q/126098/5406

Curious if this is an unpopular opinion: It was with too hard to get a BIP processed in the past and now people put BIPs on a pedestal. But BIPs are author documents. Especially in Draft stage, they do not present community consensus — they're the authors’ personal recommendation to the Bitcoin community. It seems good to me that we get a few controversial BIPs. It clears up that it's still the readers’ responsibility to make up their mind.

It's raining BIPs, hallelujah... Recently merged: BIP53 BIP54 BIP172 BIP177 BIP321 BIP443 On the cusp: BIP77 Maybe a good time to remind that BIPs are author documents that represent the authors’ recommendation to the Bitcoin community.

Does someone want to explain to me how OP_RETURNs increase the blockchain growth, hardware requirements, or otherwise increase the cost of running a node? I keep seeing that concern, and that seems completely counter my expectations. I'd love to see a detailed explanation of how that follows.

If you want to get more background on what the mempool is all about, Gloria and I wrote a ten week series in Optech two years ago: https://bitcoinops.org/en/blog/waiting-for-confirmation/ We also discussed each part of the series in the Optech Recap, if you prefer listening (look for the headphone symbol).

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.

@Tidwell out together a table of content for the big Q&A thread on OP_RETURN: https://stacker.news/items/978404

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

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

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.

BIP 3 got merged. 🥳 https://github.com/bitcoin/bips/pull/1712

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

Runes have dropped off recently.

Giving Nostr, Bluesky, and Stacker News another spin. Might even blog a bit more again.

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. #mempoolreport

Happy Bitcoin Pizza Day! 🍕🍕