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papers/hanzo-crypto-payments/hanzo-crypto-payments.tex
zeekay f9db4f5737 Publish under the org, not a person
Bylines, paper authorship, correspondence addresses and the founder blurb under
each post named an individual. They name the organisation that published the
work instead: the brand on posts and pages, the research byline on papers, and
research@ in place of a personal address. Both are what these repositories
already used elsewhere — nothing new was coined.

Co-authors are untouched. Where a paper named someone else alongside, they stay
named; only the one byline changed. Bibliography entries, running heads,
PDF metadata and affiliations move with it, so a citation still resolves to
whoever the cited paper names.

Sample and fixture data uses the placeholder name these tests already use
elsewhere, so no assertion changed meaning.
2026-09-01 08:53:13 -07:00

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% Hanzo Crypto Payment Rails: Multi-Chain Settlement with MPC Custody
\documentclass[11pt]{article}
\usepackage{../shared/hanzocover}
\usepackage{amsmath,amssymb,amsthm}
\usepackage{graphicx,hyperref,booktabs,enumitem,tikz}
\usepackage{float}
\hypersetup{colorlinks=true,linkcolor=black,citecolor=blue,urlcolor=blue}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{definition}{Definition}[section]
\title{Hanzo Crypto Payment Rails\\[0.3em]
{\large Multi-Chain Settlement with MPC Custody}}
\author{
Hanzo AI Research \\
\textit{Hanzo Industries Inc (Techstars '17)} \\
\texttt{[email protected]}
}
\date{2025}
\begin{document}
\hanzocoverpage
% ============================================================================
% ABSTRACT
% ============================================================================
\begin{abstract}
We present Hanzo Crypto Payment Rails, an extension of the Hanzo Commerce
platform that enables merchants to accept cryptocurrency payments (BTC,
ETH, USDC, USDT) with instant settlement on Lux Network. Built on the
foundation of Hanzo's checkout.js library (in production since 2015),
the crypto payment extension uses MPC threshold signing for merchant
wallet management, multi-chain transaction monitoring (EVM, Bitcoin,
Solana), and automatic fiat off-ramps. We describe the architecture:
payment channel creation, multi-chain address derivation via a single MPC
key ceremony, real-time exchange rate locking, settlement finality
guarantees, and integration with the Hanzo Commerce API. Production
benchmarks from merchant deployments show median payment confirmation in
1.2 seconds on Lux, 12 minutes on Bitcoin, and 0.4 seconds on Solana,
with settlement to merchant fiat accounts within 24 hours.
\end{abstract}
% ============================================================================
\input{sections/01-introduction}
\input{sections/02-checkout-js-heritage}
\input{sections/03-crypto-payment-architecture}
\input{sections/04-instant-settlement-on-lux}
\input{sections/05-fiat-off-ramps}
\input{sections/06-merchant-apis}
\input{sections/07-multi-chain-support}
\input{sections/08-payment-channels}
\input{sections/09-integration-with-hanzo-commerce}
\input{sections/10-benchmarks}
\input{sections/99-conclusion}
\end{document}