Twist and Shout: Fast, Simple Memory Arguments
Source: YouTube · a16z crypto · published May 9, 2026 · 1:17:10
This A16Z crypto research seminar features Justin Thaylor presenting "Twist and Shout," a SNARK-related cryptographic framework first published in January and recently implemented by the A16Z engineering team 0:09-0:20.
Key Takeaways:
• SNARKs are cryptographic protocols allowing an untrusted prover to demonstrate knowledge of a witness satisfying a specific property, without revealing the witness itself 0:44-0:53
• "Twist and Shout" was posted online in January and the A16Z engineering team, alongside interns, has spent the past few months building a working implementation 0:22-0:35
• The timing of this presentation is notable because the implementation effort is nearly complete, making this a global premiere of the working system 0:35-0:41
The talk serves as a technical deep-dive into a novel SNARK construction moving from theory to production-ready code within a major crypto research organization.
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First 800 characters of the transcript
Hi everyone, welcome to today's A16Z crypto research seminar. Very pleased to introduce our very own Justin Thaylor who will be speaking about the global global premiere about Twist and Shout. >> Yeah. And so, uh, twist and shout is, uh, some work we posted online in January. And, uh, the engineering team here at A16Z along with our, uh, fantastic engineering interns the last couple months have been working on implementing it since then and they're just about done. So, this the opportunity to give this talk today is is timely. So, yeah, let me uh start at the beginning. So, this talk is about snarks. What is a snark? A snark is a cryptographic protocol that lets an untrusted prover uh prove it knows a witness satisfying some property. Yeah. So uh for example, the prover might be claiming i…