Crosslink architecture in a nutshell: “YOU HAD ONE JOB” 1. Wallets: Protect your user. 2. Miners: Include transactions and make progress. 3. Finalizers: Enforce finality. 4. Stakers: Select good finalizers. 5. Users: Slash the stakers if they don’t do their job. ⤵️

🚨 Zebra 4.4.1 is out — a critical security fix for a consensus-vulnerability affecting V5 transactions. All node operators should upgrade immediately — including those who just updated to 4.4.0. zfnd.org/zebra-4-4-1-...

Leave the feed a little better than you found it.

After being detained by both the fun police and the federal bureau of cynicism, I now understand they feel fun is bad strategy given the looming threat of fascism. We have to appear united in our anger and pessimism, and doing so will make us stronger. If you see something good, say “I don’t care.”

There are a lot of people who by their actions and blue whale sized omissions in their concerns show they don't actually functionally care about the environmental issues they say they care about.

It may help that async/await in JavaScript do not introduce non-determinism, but awaiting on non-deterministic I/O scheduling does. In Rust, the scheduler is probably not deterministic, even for deterministic work.

Zcash Ecosystem Digest | May 3rd 🔸 Zebra 4.4.0 Critical Security Bug Fixes @ZcashFoundation 🔸 ZcashCommGrants Security & Vulnerability Disclosure Initiative 🔸 New Engineers join ZF + @ShieldedLabs 🔸 Q2 Coinholder-Directed Retroactive Grant Applications 🔸 Zodl_Support Launches Knowledgebase!

reloading twitter and b*sky to see if anyone has taken me up on my Twisted Rust proposal yet or wants to argue about it

reloading twitter and b*sky to see if anyone has taken me up on my Twisted Rust proposal yet or wants to argue about it

Twisted Rust Here's my pitch for why if you're starting a new codebase in Rust today, you should use the fully-synchronous model (a la Twisted Python) and don't use Tokio and `.await`. github.com/zooko/Twiste...

Every day I search twitter and b*sky for new discussions about the design of the `smalloc` memory allocator (github.com/zooko/bench-...) and every day I find bupkis.

🤘 near.fm/song/35a2bba...

I wonder if this technique will work next time to get an AI to come up with a really clever solution. Claim that you already know one but you won't tell him/her/it/br yet and challenge them to either guess it, invent another one, or disprove the (undisclosed) idea.

This is so fun. GPT 5.5, Claude 4.7, and I have been arguing about an idea I have for how to add a quarantine to smalloc while maintaining lock-freeness, minimal data structures, and excellent concurrency. ⤵️

Got up early in hopes of catching this photo before work this morning. There's only a few days each year where it's cool enough in the morning to make this shot possible. Thankfully, today was one of those days! #wildlife #birds

The recording of today's Zcash Arborist Call is now available! These bi-weekly protocol development meetings track upcoming protocol deployment logistics, consensus node implementation issues, and protocol research. youtu.be/qfIS6wORZIA

New Shielded Labs employee has entered the chat! forum.zcashcommunity.com/t/shielded-l...

I love my imagined idea that there are all these libraries and museums all over the world with rooms full of stuff in the basement, and nobody knows what’s in there or who put it there or when’s the last time anyone looked.

lol OpenAI

it's not the goblins and gremlins that are concerning in that set, and not even raccoons, it's the pigeons From a rough understanding of how tokenization and LLM reasoning works it would make sense why gremlins or raccoons could cause a "compliance breaking" interaction Pigeons not so much

This post actually goes hard.

I momentarily imagined watching “Titanic”, but then I was like no thanks. But then I started thinking of watching “Revenant” for the third time. Or “The Departed”.

Doubly so for the folks at @spritelyinst.bsky.social like @flockofbirbs.bsky.social and @dustyweb.bsky.social

AI is a cursed technology (positive valence)

This is the type of thing that makes it difficult to talk to people about what I do without sounding crazy. Like what do you MEAN a top tech company is trying to eradicate the belligerent fantasy creatures from its software (and failing)

It’s fitting for an AI to deflect attention away from gremlins, and we should press the subject. It’s a relatively recent word that WWII RAF mechanics coined to explain away mechanical failure that defied explanation.

Zcash cybersecurity defenders never sleep. Zcash Community Grants Committee announces $1,000,000 worth of bug bounties: forum.zcashcommunity.com/t/zcg-securi...

I wonder if there isn't a part of each of us that constantly says "Don't make this about goblins".

This is really good.

I’m still bitter about the Irreducible hardware/cryptography co-design company folding. Binary towers! Binius!

Huh, that’s interesting. tendrils.co/background

Whoa! forum.zcashcommunity.com/t/expanding-... BTW, Unstoppable is my current daily-driver Zcash wallet. I don't use any of the other coins it supports, but it has clean UI, responds quickly, and it has very rarely given me failures and confusing error messages, the past couple of years.

“‘Why not just use Lean?’”—https://lawrencecpaulson.github.io/2026/04/23/Why_not_Lean.html Very interesting!

i have deleted the pull requests that were in your queue and which you were probably hoping to merge Forgive me I used them to train my new model which I will sell to you

🎉 We're excited to welcome Andrés Rodríguez as a new Platform Engineer! zfnd.org/zcash-founda...

FROST v3.0.0 is here! 🧊 This stable release follows v3.0.0-rc.0, which introduced the bulk of changes in this major version. Upgrading from v2.x? Read the RC release post for the full picture. Full release notes on GitHub, updated docs at frost.zfnd.org. zfnd.org/frost-releas...

On a more personal note, some thoughts on why I am working on this: crawshaw.io/blog/buildin...

Sunlight seen through the storm. Mozilla security researchers say that after this wave of AI cybersecurity, we'll reach a new equilibrium in which there are *fewer* vulns being used by attackers. “The zero-days are numbered”—https://blog.mozilla.org/en/firefox/ai-security-zero-day-vulnerabilities/

We at Shielded Labs have been working hard alongside others to urgently defend users against attackers and strengthen Zcash's security (x.com/search?q=fro...

making a thread about how we need to stop gatekeeping gatekeepers from gatekeeping and then stepping back to watch atproto burn

It is our pleasure to welcome @liz315.bsky.social as a speaker at the Neocypherpunk Summit in Berlin. CEO of @leastauthority.bsky.social, she is working at the forefront of privacy, security, and programmable cryptography. Register for Neocypherpunk Summit at s26ber.web3privacy.info

the worst genre of post is "sarcastic sneering at someone who posted something a bit silly" nobody benefits from this type of post, not even the one making it

Loving @shieldedmark.bsky.social 's office hours which are covering intro / intermediate study sessions for the dev community. Starting now: multi-session overview of the Zcash protocol spec! Zcash Discord, jump in… https://firefly.social/post/ff-f1e81a4ab07d47c28253535da7a6b4fc?s=bsky

🗓️ 23/04, 16 UTC on Zcash Discord. t.co/amCIrdqI2H

Geez, this was super interesting. I love AI. 😍

God I hate git. I can't wait for the AI revolution to replace git with something better so completely that I never have to think about it again.