Month: 2026-03 Key features delivered: - Batch GKR proving and memory optimizations enabling a single shared sumcheck proof across many circuit instances, with zero-cost cloning and pre-allocated buffers (ScratchPadBatch). For large N (e.g., 65,536), prep time dropped from ~2.1s to ~0.4s; per-batch throughput improved markedly. - Parallel processing for encoding and Merkle structures (Orion) via Rayon: independent row encodings; parallel Merkle leaf hashing and tree construction; observed improvements of up to 36% in Merkle time and ~15% higher PCS throughput. - Crypto/hashing improvements: Switch from Keccak-256 to Blake3; Merkle hashing times dropped from ~89ms to ~35ms at 16K steps; pcs_gkr verify times dropped from 25ms to 10ms. - Throughput optimizations for templates: two-phase scheduling (small templates run serially, large templates in parallel) yielding large-scale throughput gains (e.g., 250K-step runs from ~8.5s to ~3.5s). - Orion PCS scratch pad support and parallelization: pass commit scratch pad through PCS open, parallelize Orion PCS commits with Rayon, achieving production-like performance (18-22 KHz fib/alu stress) and improved reliability. Major bugs fixed: - Scratch pad minimum size bug to satisfy SIMD requirements and prevent assertion failures in small circuits. - GPU data dump generic fix to use FieldEngine instead of GKREngine. - Transmute-related serialization bugs in gate dumps to ensure correct data. Overall impact and accomplishments: - Substantial performance and scalability gains across encoding, proving, and verification, enabling large-scale batch proofs with reduced allocations and memory pressure. Improved reliability and I/O simplicity via witness consolidation, and accelerated end-to-end protocols for Orion PCS. Technologies/skills demonstrated: - Rust performance engineering, extensive Rayon-based parallelism, flat buffers and create_batch approaches, alloc_zeroed optimizations for large buffers, unsafe memory sharing patterns for batch proving, and PCS keying strategies (per-commitment-size keys).

January 2026: Security hardening and data pipeline modernization for PolyhedraZK/Expander, delivering cross-language proof integrity and streamlined test-data workflows.

January 2025 monthly summary for PolyhedraDocs (PolyhedraZK/PolyhedraDocs). Focused on delivering core planning features, stabilizing the hosting stack, and improving performance and SEO to drive user engagement and faster time-to-value. Key features delivered: - Tech Tree Visualization: Initial implementation enabling technology-tree visualization for strategic planning. Notable commit: b98e2acf4973bcfa50a7ae3017e763b4ca52cb32 ("tech tree visual"). - Milestone Tracking and Roadmap Completion: Added milestone tracking/display for project planning and finished roadmap implementation. Notable commits: 57daf1bc50d9599b15e2eb824431aeb0889e5697 ("milestone"), d1d982fd20bba96afedcd3f294a9f94850864bdf ("milestone 2"), 0b0ad50da8aa53154d5096e0475fa70ce97ed0d5 ("feat/roadmap finished"). - Iterative Enhancements and Release Readiness: Sequential improvements across iterations 2–9, with planning updates for iterations 10–11 and release readiness prep. Notable commits include: 85e1bf8ad8b95362b27e962ee27a82cb698042c3 ("iteration 2"), ff47d44a5e28d8b61ed2610b048b60874f476aae ("iteration 3"), 16db6ae97a76d79e4b88c25b0aa95e27308afd24 ("iteration 8 simplify"), 6b0a705a10fda4f58bc6e31a362ea7efe84dba11 ("release ready"). - Performance and UX improvements: SEO improvements and UI refinements, plus asset optimization. Notable commits: 10ac72dae063bd37a841f0e7027dd1ac469bf5f0 ("SEO head"), f8f7d923463fb204d154d2626b7b8c7471bb7601 ("update SEO"), 0935fd6c8413c9db57452b53d1ea1a4bf5e4236a ("png -> jpg"), 04b8756b32f12cdfb4bba9a5cda1e5d2cfdd7e94 ("change margin"). - Containerization and deployment modernization: Dockerfile added for local/dev parity; Cloud Run deployment and redirect rules updated to improve reliability and scale. Notable commits: dc44de276ffa0e274dfc6a1a03644d91b96e98c5 ("add docker file"), 2d20ef18775c687485eb7aa5716a37aa3e8aaa01 ("modify cloud run"), 12fc810c2a5d1ab72c41c7ec3d1e146c57105ccb ("update cloud run"), f47347fe012025807b016388f06b48db9142acae ("cloudrun redirect"), acbb10543bd8362736a42bf49491e3ceb6257f6e ("update redirect rule"). - Miscellaneous: UI margin tweak and simple fix to address edge cases. Notable commits: 04b8756b32f12cdfb4bba9a5cda1e5d2cfdd7e94 ("change margin"), c6583cfe2feb4ad97e5ef3d49ef34bac40e4892a ("simple fix").

December 2024 monthly summary for PolyhedraZK repos. This period delivered key frontend enhancements, stability improvements, targeted documentation work, and branding updates that collectively increase user value, reduce maintenance overhead, and strengthen developer experience across PolyhedraDocs and Expander.

November 2024 monthly summary for PolyhedraZK developer work. Focus on key features delivered, major bugs fixed, impact, and skills demonstrated.