<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE rfc SYSTEM "rfc2629.dtd">
<rfc ipr="trust200902" docName="draft-singh-psi-post-quantum-00" category="info" submissionType="independent">
  <front>
    <title abbrev="draft-singh-psi-post-quantum">PSI Post-Quantum Dual-Signature Sealing</title>
    <author initials="K" surname="Singh" fullname="Kawaljeet Singh">
      <organization>Apex Intelligence Empire / ROCKYFILMS888 PTY LTD</organization>
      <address>
        <email>kawaljeet.singh3008@gmail.com</email>
      </address>
    </author>
    <date year="2026" month="July" day="18"/>
    <area>General</area>
    <keyword>PSI</keyword>
    <keyword>cryptographic verification</keyword>
    <keyword>EU AI Act</keyword>
    <abstract>
      <t>This document specifies the post-quantum cryptographic sealing
   extension for the Proof of Sovereign Integrity (PSI) Protocol.
   While classical Ed25519 signatures provide current security, the
   emergence of cryptographically relevant quantum computers (CRQCs)
   threatens all elliptic-curve and RSA-based signature schemes.

   PSI addresses this through dual-signature sealing: each seal carries
   both an Ed25519 signature (for immediate classical verification) and
   an LMS-W4-SHA256 hash</t>
    </abstract>
  </front>
  <middle>
    <section anchor="introduction" title="Introduction">
      <t>This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.</t>
      <t>This document is a product of the Apex Intelligence Empire's PSI Protocol suite, providing cryptographic verification infrastructure for AI-generated content compliance under the EU AI Act Article 50 framework.</t>
    </section>
  </middle>
</rfc>