Jameson Lopp

Insights on security, privacy, technology, & money · Casa Co-founder & Chief Security Officer · https://bitcoin.page

Public Key

npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tp

NIP-05 Address

Profile Code

nprofile1qqs0w2xeumnsfq6cuuynpaw2vjcfwacdnzwvmp59flnp3mdfez3czpspp4mhxue69uhkummn9ekx7mqpr3mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmqxaxv0w

Publishing to

nos.lol

nostr.bitcoiner.social

nostr.lopp.social

relay.damus.io

nostr-pub.wellorder.net

Author Public Key

npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tp

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Last Notes

2026-04-02 15:10:36 UTC

Nostriches not affected.
https://npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tp.blossom.band/be95bfc2b3af4cca0862fddc792cf51bc6a7c2e6c4a528f638dab8a749f59a23.jpg

2026-04-02 12:56:21 UTC

https://i.redd.it/nrzq3u8yyqsg1.gif

2026-04-01 12:47:48 UTC

I'm pleased to announce that Bitcoin Core and Bitcoin Knots have reached an agreement to merge and activate BIP-110 before the August deadline!
https://npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tp.blossom.band/2f7e9800a66997b7a8b3b8ca0604f29f07ab1cdff923a5a484ff9b61d5e931ed.jpg

2026-04-01 07:10:39 UTC

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More algorithmic efficiency improvements, but still need a ton of other improvements to make physical qubits scale. Unclear how hard that will be.

2026-03-31 17:38:32 UTC

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We're in a quantum state of being fucked.

2026-03-31 16:29:00 UTC

What is FUD?
Showing that advancements are being made in the area of quantum computing is not FUD. Significant advancements are being made at a regular rate.
Claiming to know how many years of more advancements it will take before a cryptographically relevant quantum computer is built... that is FUD.
#nevent1q…8v7z

2026-03-31 16:26:02 UTC

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LLMs rebalance the asymmetry.
I was able to have an LLM analyze the recent papers and point out which of the assumptions they rely upon were the weakest and explain why. Only took a couple minutes.

2026-03-31 07:49:44 UTC

https://npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tp.blossom.band/7690f3c42874555adf6ec8751b5b4a4eed0d9e3d2cfe19b66112987574729bd0.jpg

2026-03-30 12:22:47 UTC

One pleb's slop is another pleb's steak.

2026-03-29 19:57:45 UTC

Lord give me the confidence of the man who takes phone calls while shitting in a public restroom.

2026-03-29 18:49:41 UTC

You can just ignore idiots.

2026-03-28 18:40:10 UTC

https://npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tp.blossom.band/8c9a025ba3381ceace69a22197ada898cdf7cf620506198d49d9b959c5f58e94.jpg

2026-03-27 21:35:54 UTC

For a golfer, Tiger sure is a terrible driver!
https://npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tp.blossom.band/d04189ad298075c5e1e22483d552203665df93e91107c7f7fb72d110f08d53e4.jpg

2026-03-27 17:57:39 UTC

I recently watched a documentary about the Manosphere and concluded that its existence is the result of poor / missing father figures.
#nevent1q…9vap

2026-03-27 17:55:13 UTC

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You're crying about half of Core pull requests (that have been peer reviewed) being merged by a single maintainer and in the same breath you're suggesting people run Knots...
Knots is even worse, with 100% of pull requests merged by a single maintainer, many without even being peer reviewed!
https://blog.lopp.net/knot-a-serious-project/

2026-03-27 10:10:40 UTC

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You're welcome to fork yourself off the network with your fellow nutjobs in August 😁

2026-03-26 19:17:32 UTC

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Are you using a VPN?
A year or so ago they changed it to block logins from VPNs though once you get a session token they don't block the VPN.

2026-03-26 19:15:20 UTC

Asked a friend in the Air Force if he thought he'd get sent to Iran and instead of saying yes or no he said "I go wherever they send me." 🫠

2026-03-26 17:16:19 UTC

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Weird take. As far as we're aware, it's neither well funded nor has any developers or code.
My main point all along is that if you truly want to be independent of Core, it's best not to be a downstream fork of Core.
Ask me how I know.

2026-03-26 16:29:31 UTC

Just logged into a service and my TOTP 2FA code was 696969 😏

2026-03-26 14:09:00 UTC

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One would imagine that would be simpler and more effective than creating Yet Another Core Fork.

2026-03-26 13:28:56 UTC

We desperately need more Bitcoin client implementations... if you conveniently ignore the fact that there are half a dozen independently maintained from-scratch implementations!
#nevent1q…advu

2026-03-25 21:23:57 UTC

Folks are using AI slop to spice up real estate listings 🙄
https://www.zillow.com/homedetails/6160-Carrollton-Ave-Indianapolis-IN-46220/1245994_zpid/

2026-03-25 14:09:36 UTC

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Stpe 1: build time machine

2026-03-25 13:56:47 UTC

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We stopped selling those 5 years ago.

2026-03-25 13:45:22 UTC

At @nprofile…f2s8 we've been exploring how to leverage AI while being cautious about the undeveloped state of security for this fast-changing toolset.
We still had an AI security incident recently that falls into a pattern that is becoming increasingly common.
https://blog.casa.io/dont-trust-clankers-ai-agents-are-dangerously-helpful/

2026-03-24 23:36:28 UTC

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Right; they know they need to piggyback off of Core's development process.

2026-03-24 23:34:55 UTC

One belief I have that keeps me optimistic about Bitcoin's future is that the system runs on the actions of rational, self-interested actors.
Irrational propagandists have no power here.

2026-03-24 18:39:52 UTC

Beautiful
https://npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tp.blossom.band/00e29c88db637b000164520ea6cdc2a05b184386135d41127b9334b7a2a54a40.jpg

2026-03-24 18:23:25 UTC

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Funny that you love the process that has led to Core being the most battle tested, yet the process is so terrible it must be completely thrown out the window.

2026-03-24 18:18:50 UTC

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There are already half a dozen independently maintained from-scratch Bitcoin clients.
I don't expect Yet Another Core Fork to change much.

2026-03-24 18:16:38 UTC

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Knotzis will find themselves acting in the same way after their fork fails.
I guarantee it.

2026-03-24 12:10:13 UTC

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Knots with fewer nuts.

2026-03-23 16:59:12 UTC

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There are already a half dozen built-from-scratch implementations being actively maintained.
How does Another Core Fork change anything?

2026-03-23 14:00:49 UTC

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Relays only store text, right? Don't you mean media hosts?

2026-03-23 12:28:03 UTC

Let's play a game I like to call "Spot the Sybil Attack" 🙂
https://image.nostr.build/de043cc1452aafdba9cd7f94c57a4053952094fc7d4fe408aa5a2628cbee61ab.jpg

2026-03-23 03:38:29 UTC

Consider that the dumbest person you know is repeatedly being told 'you are absolutely right' by an LLM.

2026-03-22 18:18:10 UTC

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Monero has objectively stronger privacy than Bitcoin.

2026-03-22 18:08:39 UTC

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Probably some cypherpunk.

2026-03-22 14:46:39 UTC

https://image.nostr.build/7377fb4269fd13f39795d0d7a274e726e7a958670f253808455867229627acb1.jpg

2026-03-21 17:14:15 UTC

Pretty neat dashboard tracking stablecoin censorship: https://stables.rip

2026-03-19 19:59:50 UTC

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For sure. The stands just needed some dusting off and they're good to go!

2026-03-19 19:58:51 UTC

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I wouldn't be so sure about that. Pretty much any tire with a car's weight on it will start to deform after several months of inactivity.

2026-03-19 19:57:38 UTC

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It's not a fiat, they don't make cars that I find particularly enjoyable 😎

2026-03-19 19:27:13 UTC

Had to lift my fancy sports car off the ground because I'll be globetrotting for many months and the manual warns of tire deformation.
Naturally, the floor jack I've owned for 20 decided to stop working. Turns out you're supposed to do regular fluid changes on jacks 😅

2026-03-19 18:35:20 UTC

https://image.nostr.build/feee4f87996b60e9f8418c690a011ddb5e1b8e5a4075684924a884bbd03a42ce.jpg

2026-03-18 21:09:24 UTC

https://image.nostr.build/b3ddb7fc1f1f95cdd2fd991ba37a87c949c16e7d462f2ae6bf0931342a16281a.jpg

2026-03-18 17:18:25 UTC

What it's like being Chief Security Officer
https://image.nostr.build/20af0ed7fe68c6b0c150beb049aaa7a006adf32432cf71c032bb689c7f090f0e.jpg

2026-03-16 13:13:25 UTC

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Soft forks in the sense that they're mainly removing content.
Hard in the sense they're hosted on different domains.

2026-03-16 12:08:32 UTC

In an amusing twist there are now multiple Puritan forks of my Bitcoin educational resources web site because the original group has split from being pro Knotzi to being mostly anti Knotzi, so there's now a fork of my site for each stance. 🤣

2026-03-15 14:43:38 UTC

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Mostly low severity but there's a moderate and a high/critical buffer overflow CVE.

2026-03-15 13:29:36 UTC

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In all seriousness you sound like a retarded clanker with a tiny context window.
#nevent1q…va7n

2026-03-11 14:27:02 UTC

Accelerating your coding productivity with AI is great, but if you're paying for a frontier model consider that they are heavily subsidized by venture capital.
Don't get so addicted that you're going to get paralyzed if these companies increase their pricing by an order of magnitude.

2026-03-05 14:08:13 UTC

Just upgraded the firmware on my toothbrush.
What a time to be alive!

2026-03-04 12:08:41 UTC

Ubuntu devs are discussing implementing mandatory age verification at the OS level due to some California BS law.
How the hell would you enforce that for headless servers that get deployed and torn down automatically?

2026-02-23 13:48:25 UTC

My comprehensive analysis of BIP-110:
* Why it's reckless
* Why it's irrational
* Why it's doomed to fail
* My predictions for what will happen
* My recommendations for how to proceed
https://blog.lopp.net/a-laymans-guide-to-bip-110/

2026-02-12 20:15:36 UTC

LLMs are trusted third parties, even when hosted locally.
It's tempting to just hand them the keys to your work / life and have them do as much as possible for you.
Don't trust the clankers, verify their outputs.

2026-02-11 15:33:56 UTC

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Aside from the metaphor making no sense, the goal of BIP-110 is a soft fork rather than a chain split / hard fork. Even if there is a chain split there won't be replay protection. Thus you're spewing nonsense.

2026-02-10 17:21:51 UTC

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Yeah, you unblocked me later because you're desperate for engagement. You done goofed.
At this point I'm only interested in entertainment and taking your bitcoin in an unfriendly wager, but we all know you haven't the conviction to put your BTC where your mouth is.

2026-01-22 12:34:11 UTC

Listen up kids, if you're going to kiss someone then you'd damn well better fuck them to completion, otherwise you're going to hell!
😂😂😂😂😂😂😂😂😂😂😂😂😂
https://image.nostr.build/ef47b4783fa792db1b820bedf791904aa90603a9a9a5d2132b6eb6e6aa5c5ce3.jpg

2026-01-13 16:06:28 UTC

If you think ICE shooting a handful of protestors in confrontations is bad, wait till you learn about Iran.

2026-01-08 13:47:51 UTC

Discord just filed to IPO.
Surely this won't have any negative consequences for its users. 😬

2026-01-01 14:49:29 UTC

With BTC's exchange rate ending 2025 down 6%, the 4 year cycle of 3 up years followed by 1 down year is officially broken.
On the bright side, Bitcoin has never seen 2 down years in a row. Let's just hope that pattern isn't broken in 2026!

2025-09-30 22:06:41 UTC

Tick tock
Next block
https://image.nostr.build/1450ab237ebbe0b3f6f84a9d5c355c0b4cdcc4b74f4713009c5886bb1f0c8b1c.jpg

2025-09-28 21:10:53 UTC

If you found a way to save 5 hours per year, for the rest of your life, of your time spent doing a mindless task, for a one-time expense of $2,000... would you take it?

2025-09-28 20:34:58 UTC

I don't have a podcast but I've been on 250+ podcast episodes.
Numerous more podcast episodes have been produced purely based off of content I have created.
Am I a podcaster?

2025-09-23 16:20:54 UTC

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Forks can have multiple maintainers.
Luke could implement the same security practices as Core if he wanted to.

2025-07-17 01:13:12 UTC

Shouldn't first class be in the rear of airplanes because that has a higher survival rate in crashes?

2025-07-15 12:35:03 UTC

Is Google just phoning it in with new Pixel hardware?
Comparing Pixel 8 Pro to 10 Pro specs and most of them are the same, some like display and battery are actually a step backward...
The only obvious improvement is the CPU which I don't really care about. Not compelling to upgrade!

2025-05-10 10:48:32 UTC

Three teenagers are accused of kidnapping a man who had hosted a cryptocurrency event in Las Vegas. They drove him out to the desert and forced him to transfer $4 million in cryptocurrency and NFTs at gunpoint.
https://www.8newsnow.com/investigators/florida-teens-kidnap-las-vegas-man-drive-him-to-arizona-desert-steal-4m-in-cryptocurrency-police/

2025-01-08 12:51:37 UTC

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Safe 5 is great

2024-07-10 16:43:14 UTC

"The most common error of a smart engineer is to optimize a thing that should not exist."
- Elon Musk

2024-06-28 22:14:39 UTC

America will choose a coherent asshole over an incoherent gentleman any day of the week.
Sorry, I don't make the culture.

2023-10-24 13:20:11 UTC

Looks like 4TB NVMe PCIe 4 hard drives that can read and write 8 GB/s have dropped under $200.
Makes me wonder how long it would take to sync a fully validating Ethereum node on one. 🙃

2023-09-21 19:03:27 UTC

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Isn't communism just an economic religion?