Over the past 1000 blocks, more than 30% of transactions have been below the longstanding1 sat/vB default min tx relay fee limit. If we plot the actual data, we see spikes around round feerates (1,2,3,4 sat/vB) and a (surprisingly ?) large spike in the sub 1 sat/vB fee rates on the right hand side. We can animate this graph with a 1000 block sliding window for the month of August. There is a wide range in the proportion of blocks which are < 1 sat/vB, but the 144 block rolling average has been on an uptrend in recent months (shown here is data since June, block 900000)

grid.orange.surf

> it only takes one determined spammer to make a tool to allow the less determined to spam. - @npub1zfyt...m60l This is the asymmetry that many filter proponents seem to miss. Most of the kind of transactions they wish to filter out are created using dedicated software (services / tools / platforms). Developers of such software can rapidly bypass any restriction using open source software like libre relay, which will get their transactions to miners. We already see this, with some platforms offering the ability to select broadcast method from a drop down, including direct broadcast to some miners.

Did you use the bitcoin core wallet in the last year?

@npub1hvw0...5e8q and I are arriving early for @BTC Prague. Get in touch if you are around from the 14th and want to meet up!

Which filter do you think core will drop / change the default for next? - Max Transaction Size - Minimum Relay Fee - Minimum Output Size

What do I do? Research: I publish chart filled data-driven reports on technical Bitcoin topics. Read at

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Explore the full Bitcoin ecosystem with The Mempool Open Source Project®. See the real-time status of your transactions, get network info, and more.

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So many based bitcoiners at bcc8333 unconference. If you are in Barcelona check out their meetup

Meetup

Bitcoin Barcelona (BBO) | Meetup

**CAT:** Som el punt de trobada a la ciutat dedicat exclusivament a Bitcoin. Ens reunim per aprofundir en el protocol, la innovació, la cultura ci...

Block 900,000, had room to spare despite a celebratory meme inscription.

Unbelievable lack of use

41.65% of the UTXO set is dust amounts precisely at the implied default core policy dust limits for various script types. note: p2tr is the most popular 546 sat script type (68% of all 546 sat outputs). I guess degen wallets don't compute the actual dust limit?

Surprising facts from my new report on Bitcoin's UTXO set: - 49% of UTXOs are sub 1000 sats - 30% of UTXOs are inscriptions related - 100k+ 10-year-old counterparty UTXOs store arbitrary data with fake multisig pub keys Read it in full here:

mempool research

UTXO Set Report

A data driven analysis of Bitcoin's unspent transaction output (UTXO) set revealing that almost half of all UTXOs are < 1000 sats, 30% of UTXOs are...

By popular request, here is the last years bitcoin transaction data with rune & BRC20 split out from other OP_RETURN and Inscription transactions. Runes & BRC20 = 51% of transactions over the past 12 months

Over the past year bitcoin there have been more data storage transactions (inscriptions & OP_RETURN) than other transactions.

The most entertaining outcome is the most likely. Bookmark this.

Get yourself to a @btcplusplus event, what @niftynei() 🇺🇸💸🧡 and the team have built is truly special. The difference between online and IRL discussion is stark. Online we only see differences. IRL people celebrate similarities.

I’m seeing lots of speculation around the financial motivations with regards to modifying OP_RETURN standard core policy. In 2023 Peter Todd was transparent with his financial incentive ($1000 from Christopher Allen) for making pull request 28130, which was ultimately closed

GitHub

Remove arbitrary restrictions on OP_RETURN by default by petertodd · Pull Request #28130 · bitcoin/bitcoin

Any number or size of data-carrying OP_RETURN outputs are allowed, and the -datacarrier option is removed. For those who want to limit data carryin...

🎲 In 2014 Luke Dashjr described mining policies such as OP_RETURN size limits as not being a development topic, and suggested randomizing the default value.

Re: [Bitcoin-development] Increasing the OP_RETURN maximum payload size - Luke Dashjr