papers/hanzo-digital-securities-integration/sections/06-data-persistence-via-hanzo-base.tex

\section{Data Persistence via Hanzo Base}

\label{sec:base}
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Hanzo Base provides the data layer for ArcaLabs services:

\begin{description}[leftmargin=1.4em]
    \item[Investor records] KYC status, accreditation, jurisdiction,
    wallet addresses. Linked to IAM identity.
    \item[Trade records] Order submissions, matches, settlements.
    Immutable audit trail.
    \item[Compliance events] Whitelist changes, restriction violations,
    corporate actions. Indexed for regulatory reporting.
    \item[NAV history] Daily NAV calculations for ArCoin and other
    fund products.
    \item[MPC session logs] Signing requests, policy decisions,
    completion status. Required for SEC 17a-4 compliance.
\end{description}

Base configuration:
\begin{itemize}[leftmargin=1.4em]
    \item \textbf{Local development}: SQLite embedded in Base runtime.
    Zero external dependencies.
    \item \textbf{Production}: PostgreSQL backend with Base runtime
    providing the application layer, authentication (via IAM), and
    real-time subscriptions.
    \item \textbf{Replication}: PostgreSQL streaming replication for
    high availability.
\end{itemize}

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