[
  {
    "date": "2026-09-09",
    "title": "Nethermind archives Horus, its SMT verifier for Cairo 0",
    "url": "https://github.com/NethermindEth/horus-checker",
    "summary": "Lean-based verification of the Cairo AIR by StarkWare is now the only maintained route for Cairo."
  },
  {
    "date": "2026-08-20",
    "title": "Ethereum Foundation, Yukon and zkSecurity launch better.codes",
    "url": "https://blog.ethereum.org/en/2026/08/20/better-codes-challenge",
    "summary": "An open autoresearch challenge to raise the Lean-checked soundness bound of the koalaIRS12 proximity problem; by 2026-09-13 the bound rose from 64 to 68.07 bits."
  },
  {
    "date": "2026-08-01",
    "title": "zkSecurity releases zk-skills with circom-auditor",
    "url": "https://blog.zksecurity.xyz/posts/circom-auditor/",
    "summary": "Open-source security skills for coding agents, reporting 66 of 70 known bugs found on the zkbugs benchmark."
  },
  {
    "date": "2026-07-23",
    "title": "StarkWare verifies the STRK20 privacy pool in Lean 4",
    "url": "https://starkware.co/blog/strk20-formal-verification/",
    "summary": "More than 230 theorems using the Cairo AIR methodology."
  },
  {
    "date": "2026-07-02",
    "title": "zkSecurity launches zk.golf",
    "url": "https://blog.zksecurity.xyz/posts/zkgolf/",
    "summary": "Circuit optimisation challenges where every submission carries a kernel-checked Lean proof of soundness and completeness."
  },
  {
    "date": "2026-06-05",
    "title": "Clean adds Channels for multi-table and zkVM verification",
    "url": "https://blog.zksecurity.xyz/posts/clean-verified-zkvms/",
    "summary": "Presented at ZKProof 8; lifts per-table soundness to whole-system soundness for LogUp-style interactions."
  },
  {
    "date": "2026-06-03",
    "title": "StarkWare and Avigad publish Lean 4 soundness of the S-two Cairo AIR",
    "url": "https://arxiv.org/abs/2606.04311",
    "summary": "Satisfying the AIR implies a correct Cairo execution, for both Stone and S-two."
  },
  {
    "date": "2026-05-28",
    "title": "Rust-to-Lean pipeline verifies Plonky3 FRI folding and RISC Zero Merkle checks",
    "url": "https://arxiv.org/abs/2605.30106",
    "summary": "hax, Aeneas, ArkLib, CompPoly and AI provers combined on production prover code."
  },
  {
    "date": "2026-05-20",
    "title": "Ethereum Foundation discloses SP1 Hypercube JALR bug and audits sp1-lean",
    "url": "https://zkevm.ethereum.foundation/blog/sp1-fv",
    "summary": "51 of 62 opcodes fully proven; the JALR theorem's alignment assumption is the public case study in specification gaps."
  },
  {
    "date": "2026-05-04",
    "title": "zkSecurity proves circomlib's Poseidon sound and complete in Clean",
    "url": "https://blog.zksecurity.xyz/posts/poseidon-clean/",
    "summary": "BN254 primality discharged via a Pratt certificate in CompPoly."
  },
  {
    "date": "2026-05-01",
    "title": "Apple publishes formal verification of corecrypto ML-KEM and ML-DSA",
    "url": "https://github.com/apple/corecrypto",
    "summary": "Isabelle/HOL with AutoCorres2, plus SAW and Cryptol, over C and ARM64."
  },
  {
    "date": "2026-04-08",
    "title": "Veridise releases LLZK v1.0",
    "url": "https://veridise.com/blog/veridise-announcements/llzk-v1-0-a-new-phase-for-zk-shared-infrastructure/",
    "summary": "Circom and Halo2 frontends; Picus, zkLean and R1CS backends; Rocq via Formal Land."
  },
  {
    "date": "2026-02-15",
    "title": "Verification Theatre paper reports 13 bugs in verified libcrux and hpke-rs",
    "url": "https://eprint.iacr.org/2026/192",
    "summary": "Four inside verified ML-KEM and ML-DSA code, all outside what the specifications stated."
  },
  {
    "date": "2025-12-18",
    "title": "Ethereum Foundation publishes the L1 zkEVM security roadmap",
    "url": "https://blog.ethereum.org/2025/12/18/zkevm-security-foundations",
    "summary": "100-bit provable security by May 2026, 128-bit and a formal soundness argument for recursion by end of 2026."
  },
  {
    "date": "2025-11-19",
    "title": "zkSecurity publishes a hands-on comparison of six circuit FV frameworks",
    "url": "https://blog.zksecurity.xyz/posts/formal-verification-arithmetic-circuits/",
    "summary": "ACL2, acl2-jolt, Garden, zk-lean, sp1-lean and Clean evaluated on reproducibility and practical proving."
  },
  {
    "date": "2025-10-09",
    "title": "Nethermind and Succinct announce Lean verification of SP1 Hypercube core chips",
    "url": "https://blog.succinct.xyz/nethermind-lean/",
    "summary": "RV64 chip constraints proved against the Sail RISC-V model, built on Clean."
  },
  {
    "date": "2025-07-02",
    "title": "Nethermind's Halva finds a critical bug in Scroll's deprecated Keccak Halo2 circuit",
    "url": "https://www.nethermind.io/blog/formal-verification-of-halo2-circuits-in-lean",
    "summary": "The clearest public case of a proof-assistant framework finding a critical circuit bug."
  },
  {
    "date": "2025-03-27",
    "title": "zkSecurity introduces Clean",
    "url": "https://blog.zksecurity.xyz/posts/clean/",
    "summary": "A Lean 4 DSL for ZK circuits with soundness and completeness proofs per gadget."
  }
]