Arithmetic-friendly hashes have long been one of the weakest pieces of prover cryptography. With ZisK v1.3.0, we removed Poseidon entirely and moved to BLAKE3. What surprised us is that we got the same performance — or even better. After many optimizations elsewhere in the prover, hashing had become one of the most time-consuming parts of proof generation. BLAKE3 is more than an order of magnitude faster, making this cost almost disappear and largely compensating for the increased complexity of the recursion circuit. Getting there required a lot of re-engineering: circuit sizes, prover scheduling, and architecture all had to be reconsidered around the new trade-offs that BLAKE3 gives us. The final result surprised even us. There is a lot of focus today on binary-field proving. Binary fields attack the hash-proving bottleneck from a different direction, but introduce different trade-offs when proving regular arithmetic. There is a huge amount of research happening here, and at ZisK we are following it very closely. I'm genuinely curious to see whether binary-field architectures will outperform what we can achieve with the current approach — and how long it will take. So I like to think of v1.3.0 as setting a new target. 🎯 To everyone working on binary fields — and to all of us trying to make provers faster: let's see if we can beat it :) And we still have a few optimizations in the basket.

Ethereum L2s are showing a clear gap in fees paid to Ethereum. Over the last 7D, Robinhood Chain ranks #2# with $5.45K in fees paid to Ethereum. Top L2s by Fees Paid to Ethereum Last 7D: ▫️@aztecnetwork - $11.92K ▫️@RobinhoodCrypto - $5.45K ▫️@base - $2.36K ▫️@Lighter_xyz - $2.12K ▫️@SX_Network - $893.4 ▫️@world_chain_ - $805.1 ▫️@grvt_io - $798.4 ▫️@taikoxyz - $789.4

Screenshots of the Philip Morris website. (reminder: they're a leading cigarette company) It's a good calibration point for how good modern marketing is at dressing up pretty much any corporate (or, for that matter, government) behavior and making it sound responsible and safe.

Side by side @EthenaPay and @Plasma for the same €16.80 transaction: Ethena Pay: $19.72 charge, $0.88 cashback = net cost $18.84 Plasma: $19.90 charge, $0.39 cashback = net cost $19.51

We are opening beta access to Bermuda's private multisig. Explore private transactions, payroll and other DeFi use cases across the EVM. To get access, join the Bermuda telegram group - link in replies 👇

Pretty scary thought that every plan, complex idea, private note, architecture choice, creative proof, or whatever digital artifact you create will sooner or later be absorbed into some model’s weights - unless you avoid, like, 99% of all cloud software.

Safe Pro is coming 💹 On 6 October, we launch Safe Pro. You can apply to become an Early Partner today and help us shape it. Company-wide administration, additional security features, audit history, and reporting across every @Safe account an organization runs, plus guided onboarding and professional support. Self custody stays the same. Ahead of launch, we're opening the Safe Pro Early Partner Program to teams who want to work directly with us and help shape what ships next. Apply for early access and find out more: