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zeekay
abf99d05fc
Restructured from flat .tex/.pdf files into per-paper subdirectories. Added Antje Worring as co-author on all papers. Synced PDFs to pdfs/ for download site.
32 lines
1.1 KiB
TeX
32 lines
1.1 KiB
TeX
\section{Regulatory Compliance}
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\subsection{AML/KYC Integration}
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Z-Chain supports \textbf{compliance without compromising user privacy}:
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\begin{enumerate}
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\item User completes KYC with licensed provider (off-chain)
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\item Provider issues \textbf{compliance certificate} (zk-attestation)
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\item User submits certificate with shielded transaction
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\item Smart contract verifies certificate without learning user identity
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\end{enumerate}
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\textbf{Certificate Proof}:
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\begin{equation}
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\pi_{\text{kyc}} \leftarrow \text{Prove}\left(\text{HasValidCertificate}(pk_{\text{user}}, \text{provider}_{\text{id}})\right)
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\end{equation}
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\subsection{OFAC Compliance}
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To prevent sanctioned addresses, Z-Chain implements \textbf{nullifier blacklist}:
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\begin{itemize}[leftmargin=1.1em]
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\item Regulators submit sanctioned nullifiers to on-chain registry
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\item Smart contracts reject transactions with blacklisted nullifiers
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\item Privacy preserved: Only nullifier visible, not user identity
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\end{itemize}
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\textbf{Key Advantage}: Compliance without address-level deanonymization.
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