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Companion LaTeX papers to luxfi/LPs: - lp-200-zap-stack: full ZAP-as-substrate paper (10-layer model, deco- mplected concerns, performance). - lp-200-lux-vs-avalanche-diff: code-translation appendix. - lp-203-gpu-native-verify, lp-205-pipelined-quasar, lp-208-dag-mempool, lp-209-mysticeti-ordering, lp-210-block-stm, lp-211-cross-shard-atomic, lp-217-cert-profile-modes, lp-218-zap-p3q-pq-rollup, lp-220-p3q-corona-magnetar, lp-221-stark-fri-verifier, lp-300-schema-registry. Pitch / outreach decks (luxcover.sty templated): - blackrock-nahmii-pitch, corporate-dao-stack-analysis, nahmii-patent-acquisition, pq-patent-family-future-infringers, lux-substrate-platform-pitch, w3a-foundation-membership, multi-validator-scale, vfs-archive-cost-study. Edits aligning to LP-217 / LP-200: - lp-020-quasar-consensus 02-system-model + 08-performance. - lp-073-pulsar 11-quasar. - lp-103-omnichain-explorer 03-chain-support. - lp-104-graph-engine. - lp-201-zap-universal-wire/wire-inventory.csv. - lp-306-lx-social-dex sections/02. - lux-adoption-roadmap, lux-chain-architecture, lux-consensus-engines/08-composition, lux-crypto-agility, lux-evm-precompile-engineering/02, lux-fhe-smart-contracts/05, lux-quasar-composition/04+06+10, lux-reproducible-builds. - INDEX.md cross-links the new papers.
69 lines
2.3 KiB
TeX
69 lines
2.3 KiB
TeX
\documentclass[11pt,a4paper]{article}
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\usepackage{../shared/luxcover}
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\usepackage[utf8]{inputenc}
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\usepackage[T1]{fontenc}
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\usepackage{amsmath,amssymb,amsfonts}
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\usepackage{graphicx}
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\usepackage{hyperref}
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\usepackage{booktabs}
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\usepackage{enumitem}
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\usepackage{xcolor}
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\usepackage{siunitx}
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\usepackage{listings}
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\hypersetup{colorlinks=true,linkcolor=black,citecolor=blue,urlcolor=blue}
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\lstset{
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basicstyle=\ttfamily\scriptsize,
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breaklines=true,
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frame=single,
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showstringspaces=false,
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}
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\title{Pipelined Quasar:\\
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HotStuff-Style Three-Block In-Flight Consensus}
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\author{Lux Industries, Inc. \\
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\texttt{[email protected]}}
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\date{2026-06-03}
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\begin{document}
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\luxcoverpage
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\begin{abstract}
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Round-blocking Quasar caps single-leader throughput at one block per
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cert-wall-clock. We present Pipelined Quasar, which runs three blocks
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in flight across the three per-block stages (Select for $N{+}2$, Build
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for $N{+}1$, Sign for $N$). Per-block wall-clock collapses from
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$\sum(\textrm{stages})$ to $\max(\textrm{stages})$. The wire format is
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unchanged: this is a protocol orchestration change, not a new
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consensus protocol. Depth~3 is the reference cap, set by the
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intersection of leader-rotation independence and per-stage subsystem
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orthogonality. At the projected LP-217 PQ-fast mode with GPU-accelerated
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Pulsar / Corona verify (\SI{5}{\milli\second} cert, \SI{3}{\milli\second}
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prep -- projected from LP-203 GB10 sm\_120 pairing rates measured
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2026-06-04), depth-3 pipelining yields \SI{200}{\,blocks\per\second}
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versus \SI{125}{\,blocks\per\second} round-blocking ($60\%$ win). The
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matrix bench (Spark, $N{=}64$, CPU-only, 2026-06-04) measured PQ-off
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at \SI{6.3}{\milli\second} per-cert wall-clock and PQ-fast at
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\SI{585}{\milli\second} CPU-only; the latter motivates the GPU-offload
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roadmap rather than contradicting the pipelining claim. This paper expands on LP-205
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(\texttt{lps/LP-205-pipelined-quasar.md}) with the stage independence
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arguments, the failure-mode unwind contract, and the wall-clock
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throughput model parameterized by the LP-217 mode.
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\end{abstract}
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\tableofcontents
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\newpage
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\input{sections/01-introduction}
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\input{sections/02-stages}
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\input{sections/03-depth-and-leader-rotation}
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\input{sections/04-failures}
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\input{sections/05-throughput}
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\input{sections/06-composition}
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\bibliographystyle{plain}
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\bibliography{biblio}
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\end{document}
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