Share this page!

Enter URL or ID to Unroll

You can paste full URL like: https://x.com/threadreaderapp/status/1644127596119195649
or just the ID like: 1644127596119195649

How to get URL link on X (Twitter) App

  1. On the Twitter thread, click on or icon on the bottom
  2. Click again on or Share Via icon
  3. Click on Copy Link to Tweet
  4. Paste it above and click "Unroll Thread"!
  5. More info at Twitter Help
mononaut Profile picture
mononaut
@mononautical
developer, spacefaring primate, international treasure hunter. building for Bitcoin at @BitfeedLive and @mempool Find me on Nostr at mononaut@monospace.live
May 3 • 11 tweets • 4 min read
since the last halving, at least 606 non-standard transactions have been submitted to miners out-of-band and successfully mined.

they paid a combined 4.59 BTC in (in-band) fees and occupied just over 52 blocks worth of space.

here's a quick survey, with examples 🧵 108 transactions with oversized op_returns, mostly from the recent opreturnbot flame war

mempool.space/tx/4f06523ed1d…
Oct 2, 2024 • 7 tweets • 3 min read
The State of the Mempool
as of Wed Oct 2nd - 21:00 UTC

Although the mempool now frequently clears transactions below ~2 sats/vb, it remains just under 100 blocks deep, with the lower strata largely unchanged for the last several months.

So what's down there? 🧵Image here's a snapshot of my entire mempool, color-coded by transaction type.

the top-right square is the next projected block, with subsequent blocks laid out in rows: right to left and top to bottom. Image
Jun 1, 2024 • 11 tweets • 3 min read
Japanese exchange DMM Bitcoin recently lost 4503 BTC, worth over $300m.

So what happened? Did North Korea hack their mainframe? Perhaps a team of elite thieves executed a series of elaborate heists to exfiltrate multisig keys from DMM's vaults?

Let's investigate... 🧵 Here's the "theft" transaction. Note the output address, and the absurdly high fee of 0.1 BTC.

mempool.space/tx/975ec405ac9…
Image
Feb 3, 2024 • 5 tweets • 2 min read
uh guys? Image seems to be driven by lots of transactions like this, committing to a large batch of inscriptions, but also creating a bunch of seemingly pointless 420-sat outputs.
mempool.space/tx/010b7b61208…
Nov 30, 2023 • 4 tweets • 2 min read
It looks like @AntPoolofficial finally noticed that 83.7 BTC fee sitting in their wallet.

antpool.com/newsDetail/457

Image It's worth reiterating that this is a woefully inadequate way to verify the rightful owner of those coins.

Especially in light of the claims of a compromised wallet.

Nov 27, 2023 • 8 tweets • 3 min read
The signature checks out, @83_5BTC apparently controls the key that paid that 83.7 BTC fee.

1/🧵
Image 2/ They say they sent the coins to a fresh cold wallet, which was instantly swept by a third party.

The attacker managed to steal almost 56 BTC while paying 83.7 in transaction fees.

So the victim lost not only the fee, but their entire 140 BTC stack 😭

Oct 21, 2023 • 20 tweets • 6 min read
How does a lightning replacement cycling attack work?

There's a lot of discussion about this newly discovered vulnerability on the mailing lists, but the actual mechanism is a bit hard to follow.

So here's an illustrated primer...

🧵 1/n


Image
Image
Image
Image 2/ Imagine Bob is routing a lightning payment from Alice to Carol.

While in flight, the payment is protected by HTLC outputs in his pre-signed channel commitments with each peer. Image
Sep 13, 2023 • 8 tweets • 3 min read
🚨🚨🚨 BREAKING 🚨🚨🚨
The fat fingers belong to PayPal I had initially discounted that possibility, but after receiving a tip-off I took another look.

The overpaid fee came from a hot wallet reusing the address bc1qr3...zpw3, which started operating in June of this year. Image
May 30, 2023 • 8 tweets • 4 min read
a substack post going around at the moment claims that a single entity owns 64% of all inscriptions created since early March, paying an eye-watering 1056 BTC for the privilege

it's not true.

block21m.substack.com/p/most-bitcoin… Image I've seen a lot of takes already suggesting this sounds like market manipulation, money laundering, or a well-funded attack on Bitcoin by wealthy adversaries.

but the truth is much less exciting.
Feb 4, 2023 • 9 tweets • 3 min read
While everyone's distracted by jpegs, something else is burning blockspace and bloating the UTXO set.

Over the past month, it may have used up to 2% of block capacity, created 0.4% of the current UTXO set, and fueled the recent spike in P2TR outputs.

mempool.space/block/00000000… Each of the tiny transactions in that block spends a P2WSH input with a complex witness script.

It pays exactly 606 sats in fees, and creates a single P2TR output with a small round number of satoshis - usually 2500, 5000, or 10000.

mempool.space/tx/512e863a7b2…
Dec 4, 2022 • 11 tweets • 3 min read
I asked ChatGPT to take a 62-part political compass test.

here's the result. The AI had strong opinions on only 12 of the propositions. You could probably guess which.

E.g: on racial supremacy:
Nov 7, 2022 • 7 tweets • 2 min read
FTX's main known cold storage balance dropped from 20136 BTC down to zero today, in the first activity on that address since early 2021.

mempool.space/address/bc1qtw… Their hot wallet avoids address reuse, so it's tricky to estimate a balance, but tracing payouts on-chain suggests they might have about 12685 of that BTC remaining in hot addresses.