Daejun Park retweeted
Many people have claimed that with AI-assisted bug finding, secure code (and hence trustless anything) will be impossible.
I have a much more optimistic take, and AI-assisted formal verification is a major part of the reason why:
vitalik.eth.limo/general/202…
Daejun Park retweeted
CLAP lets you write a ZK circuit directly in the Lean proof assistant. The compiler lowers it to a constraint system, with soundness and completeness guaranteed by construction.
Properties proved at the source level carry through to R1CS.
Daejun Park retweeted
This is a great illustration of why "generative AI finding security bugs everywhere" is a non‑equilibrium phenomenon. Today, there's lots of software out there that wasn't built under agentic scrutiny.
Going forward, pretty much all software, including smart contracts, will be subjected to increasingly sophisticated and thorough agent audits before deployment – which will hopefully squash these types of bugs ahead of time.
(h/t @eddylazzarin)
Daejun Park retweeted
We’re excited to share our 2025 State of Crypto report.
This year’s story: the maturation of the crypto industry — with growing institutional adoption, the rise of stablecoins, better infrastructure, new consumer experiences, and long-awaited regulatory clarity.
Read the full report → a16zcrypto.com/posts/article…
Here are the biggest trends of 2025…
Daejun Park retweeted
are you old enough to remember the post by @aviggiano about emulating invariant testing using arrays of symbolic selectors?
In halmos v0.3, you can now just write `invariant_` test functions, with no boilerplate and no bounding/clamping
Daejun Park retweeted
Just finished a detailed in-depth writeup on catching complex vulnerabilities (including reentrancy and DoS) using halmos+halmos-helpers-lib symbolic testing that are tied to a malicious external contract on a real-world example. Details in🧵
Daejun Park retweeted
I’m excited to announce the cohort for our fourth Crypto Startup Accelerator program (CSX 04), starting this week in San Francisco.
CSX helps early-stage startups building on blockchain technologies to accelerate development and product-market fit. It is an intensive program that provides the expertise, mentorship, and support that startups need to build ambitious products across industries.
Over the next two months, the founders of these companies will get firsthand guidance and support from a16z crypto’s investing and operating teams. We connect founders with capital, industry experts across the a16z network, and a cohort of leading web3 teams. a16z CSX also invests a minimum of $500,000 in each company that’s accepted.
The founders in CSX 04 are coming to San Francisco from countries around the world: Canada, France, Germany, South Korea, United Arab Emirates, and across the US.
Here are the companies participating in CSX 04:
Ambient: building a blockchain that integrates large language models for verifiable, censorship-resistant AI capabilities
@CambrianNetwork: provides verifiable data for AI agents engaging in DeFi
@inconetwork: enables confidential compute to existing blockchains
@KYDLabs: building a fully integrated commerce layer designed for live events
@launchercapital: building the next generation of AI agents through gamification and blockchain technology
@MahojinAI: a search-to-generate AI platform that provides exact images through a remixable library
@getoro_xyz: a decentralized intelligence platform unlocking private data for frontier AI
Toji: makes onchain popularity markets for videos
@zardotapp: building a decentralized cash-to-stablecoin platform for emerging markets
Some companies that have been accepted are currently in stealth, and will be named soon. We may also add more companies to the cohort.
Congratulations to each of our CSX 04 companies. I can’t wait to kick things off with them this week.
Daejun Park retweeted
We all know the cause of the largest hack in history, but let's take time to understand exactly what happened and what can be done going forward. Stay safe out there
a16zcrypto.com/posts/article…
Daejun Park retweeted
It was an honor to attend the crypto summit at the White House on Friday. The last administration chose to wage a lawfare campaign against good actors while mostly ignoring bad ones. The new administration is pursuing a much smarter approach: providing a clear pathway for entrepreneurs and innovation while ensuring strong consumer protections.
The most important development was the president’s announcement that he wants stablecoin and market structure legislation passed by August. Industries are built on solid foundations, and this is a critical step forward.
Transformative technologies like crypto and AI require us to separate their essence from specific uses and misuses. A hammer can build a home or demolish one; the question is how we maximize the good while minimizing the bad. Reactive approaches—like lawsuits and piecemeal rulemaking—create uncertainty and fragmentation. The internet flourished because of forward-thinking legislation like the 1996 Telecommunications Act, which created a cohesive national framework.
Today, we’re at a similar crossroads. With accelerating progress in crypto, AI, and other frontier domains, this is the time to craft thoughtful, comprehensive policies that acknowledge both the promise and risks of these technologies. I’m very encouraged by the bipartisan momentum and the administration’s commitment to ensuring the U.S. leads the way in this new era of innovation.
Daejun Park retweeted
What’s the difference between ETH, FTT, USDC, TRUMP and $APPL? And how do those differ from airline miles or a CryptoPunk? Why does it even matter?
Today, @eddylazzarin, @skominers and I published two articles classifying tokens based on their source of value. 👇
Daejun Park retweeted
The industry is mature enough that we can categorize tokens based on their legal, economic, and technical properties. Not all tokens are created equal.
Some projects even describe their token as a Network Token or memecoin when it's really Company-backed. Links below ↯
Daejun Park retweeted
Here's a useful way to categorize tokens -- from network tokens to memecoins, plus a handy flowchart to help figure things out.
Token definitions: a16zcrypto.com/posts/article…
Company-backed vs. network tokens: a16zcrypto.com/posts/article…
by @milesjennings, @skominers, & @eddylazzarin
Daejun Park retweeted
We formally verified Ethereum's new Pectra system contracts — using Halmos — with <1000 lines of code.
Links to @daejunpark's work below ↯
External reviews of the Pectra system contracts has been completed by @a16z, @sherlockdefi (Blackthorn), @dedaub, @plainshift and @sigp_io. Thank you for helping keep Ethereum secure! Full reports can be found in the Pectra System Contracts Audits repository, linked below.
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Daejun Park retweeted
External reviews of the Pectra system contracts has been completed by @a16z, @sherlockdefi (Blackthorn), @dedaub, @plainshift and @sigp_io. Thank you for helping keep Ethereum secure! Full reports can be found in the Pectra System Contracts Audits repository, linked below.
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