Files
papers/lp-306-lx-social-dex/sections/02-architecture-2022-design-vs-2026-impleme.tex
zeekayandHanzo Dev e2cb62c540 Restore the measured DEX campaign the merge had reverted
I resolved these files toward a June commit that called the billion-order figures
fabricated, and that commit was itself the mistaken one. The July campaign it
predates does not assert its numbers, it checks them: a GPU-versus-CPU parity run
matching exactly, 38,000,000 fills on both sides at 1,000,000 books, depth 32, 32
takers each, on hardware this estate owns.

It also names the error in the earlier framing. Consensus determinism was taken
to force a single-thread launch and forfeit the GPU. It does not: determinism
constrains ordering WITHIN a book and says nothing across books, so one thread
per book — each matching its taker stream in strict price-time priority,
bit-for-bit re-executable, millions of threads — saturates the accelerator with
every book deterministic.

Restored at the later versions across all 27 files: the accounting section, the
CLOB matcher, lightspeed-dex, lp-306, lp-308, lp-137, p3q-corona, the precompile
engineering sections and the FHE orderbook application. Paper builds, 23 pages,
no errors.

Co-authored-by: Hanzo Dev <[email protected]>
2026-09-01 08:16:10 -07:00

107 lines
4.4 KiB
TeX

\section{Architecture: 2022 Design vs.\ 2026 Implementation}
\subsection{Matching Engine}
\textbf{2022}: C++ matching engine compiled to Solidity WASM,
running on a Lux L1 chain. Order book stored on-chain.
\textbf{2026}: Multi-engine architecture
(\texttt{luxfi/dex}): Go (default), C++ (high-freq), Rust
(safety-critical), MLX (Apple Silicon). CLOB matching with
AMM fallback. Clearinghouse with margin and liquidation.
Cross-chain gateway bridging 8 chains. The GPU CLOB kernel
sustains 9.13\,B byte-exact \texttt{uint256} orders/sec on an NVIDIA
GB10, 12.76\,B on an AMD Radeon 8060S, and 5.60/2.80\,B on Apple
M4 Max/M1 Max; the throughput levers are a coalesced structure-of-arrays
arena layout ($\sim$6$\times$ over an un-coalesced baseline) and a
Knuth Algorithm-D division that replaces a 512-iteration bit-serial
\texttt{uint256} VWAP, with output byte-identical to the CPU
oracle (LP-203).
\subsection{Social Trading and Copy Swaps}
\textbf{2022}: Permission-mapped liquidity aggregator smart
contracts allowing expert traders to manage investor capital
on-chain while investors retain key custody. People-Based
Portfolios (PBPs) with transparent performance stats.
\textbf{2026}: The Lux ATS (\texttt{luxfi/ats}) implements the
regulated version: SecurityToken deployments via \texttt{luxfi/standard}
on the Lux EVM, portfolio management via the exchange frontend
(\texttt{luxfi/exchange}), and social trading features
(leaderboards, copy-trade, rebalancing). The permission-mapping
concept was absorbed into the MPC wallet architecture: users
sign with their WebAuthn key share, the ATS co-signs after
compliance checks, and capital never leaves the user's
on-chain wallet.
\subsection{Decentralized Liquidity Pool}
\textbf{2022}: Uniswap V3--style concentrated liquidity with
up to 4000x capital efficiency, extended to support both
fungible and non-fungible assets in a single pool.
\textbf{2026}: The Lux DEX implements a native orderbook
(CLOB) rather than an AMM-only model. AMM pools exist as
fallback liquidity via \texttt{luxfi/standard/contracts/amm/}
(AMM V1--V4, Oracle-Mirrored AMM). The NFT liquidity pool
concept was not pursued --- the market moved toward
orderbook-based NFT trading (Blur/Tensor model) rather than
AMM curves for non-fungibles.
\subsection{Atomic Swaps and Bridge}
\textbf{2022}: HTLC-based atomic swaps with BTC, subsidized
by gateway deposits. Cross-chain interoperability via oracles
(Chainlink).
\textbf{2026}: The Z-Chain (zero-knowledge bridge) uses
homomorphic encryption for shielded cross-chain transfers.
The Lux DEX cross-chain gateway supports 8 chains natively.
\texttt{luxfi/standard/contracts/bridge/} implements the
Warp Messenger protocol for L1$\leftrightarrow$L2 asset
movement. Chainlink oracles replaced with Lux Oracle
(native, threshold-signed price feeds).
\subsection{Governance and DAO}
\textbf{2022}: LUX token governance with quadratic voting,
holographic consensus, proof-of-humanity biometric
authentication, proxy voting, and Ricardian contracts.
\textbf{2026}: DAO governance contracts exist in
\texttt{luxfi/standard/contracts/dao/} and
\texttt{contracts/governance/}. Voting is on-chain with
LUX staking. Quadratic voting and proof-of-humanity were
not implemented --- standard token-weighted voting with
delegation is the current model. Ricardian contracts were
superseded by on-chain compliance gates
(\texttt{IComplianceGate} interface).
\subsection{Security}
\textbf{2022}: SHA-3, PKI, time-delayed multisig, benign
fill, hardware wallets for all signing, homomorphic
zero-knowledge file systems.
\textbf{2026}: All realized plus post-quantum upgrades:
\begin{itemize}[nosep]
\item SHA-3 $\rightarrow$ used throughout (Keccak-256 for
EVM compatibility, SHA3-256 for non-EVM).
\item Multisig $\rightarrow$ 2-of-3 MPC
(CGGMP21 + FROST), strictly superior to multisig
(single on-chain address, no $n$-of-$m$ script
complexity).
\item Hardware wallets $\rightarrow$ HSM co-signing
(AWS KMS, GCP, Zymbit) for settlement intents.
\item Zero-knowledge file system $\rightarrow$
\texttt{PrivateStore.sol} + \texttt{/v1/base/private}
(E2E encrypted blind blob store, shipped Q1 2026).
\item FHE for front-running prevention $\rightarrow$ FHE
CRDT merge (shipped Q1 2026), encrypted orderbook
on the DEX roadmap (Section~\ref{sec:roadmap}).
\end{itemize}
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