QANBDG — Quantum-Adaptive Neural-Blockchain Defense Grid A Post-Quantum Autonomic Reference Architecture for Sovereign Defense and Classified Critical National Infrastructure Security

QANBDG — Final Ultimate Edition (Clean Zenodo Description) Quantum-Adaptive Neural-Blockchain Defense Grid (QANBDG) A Post-Quantum, Autonomic Reference Architecture for Sovereign Defense and Classified Critical National Infrastructure (CNI) Security Abstract (Authoritative Description) The Quantum-Adaptive Neural-Blockchain Defense Grid (QANBDG) presents an advanced, defence-only, post-quantum reference architecture for protecting classified, sovereign-scale, and high-value Critical National Infrastructure (CNI) against emerging quantum-era, AI-driven, and hybrid cyber threats. QANBDG integrates NIST-standardized post-quantum cryptography, federated neuro-symbolic artificial intelligence, permissioned blockchain-based veracity mechanisms, and large-scale cyber twin simulation into a unified autonomic defensive framework. The architecture is explicitly designed for long-horizon cryptographic resilience, zero-trust operational assurance, and legally bounded sovereign deployment. This work is intended as a policy, research, and strategic reference architecture, not as an operational cyber-weapon system, offensive platform, or commercial security product. Core Architectural Innovations Post-Quantum Cryptographic Foundation The architecture is grounded in NIST-finalized post-quantum cryptographic standards, including: ML-KEM-1024 (FIPS 203) for quantum-resistant key establishment ML-DSA-87 (FIPS 204) for post-quantum digital signatures Falcon-based signatures (FIPS 205) for high-assurance authentication This foundation supports long-term confidentiality, integrity, and audit survivability under quantum-capable adversary models. Federated Neuro-Symbolic Defense Intelligence QANBDG employs hybrid GAN–LSTM–Transformer ensembles augmented with symbolic constraints to support: Sub-50ms zero-day threat response design envelopes High-confidence anomaly and adversarial behavior detection Privacy-preserving federated learning across distributed sovereign environments Mandatory human-in-the-loop (HIL) governance for high-impact or irreversible decisions Blockchain-Anchored Veracity and Provenance Fabric A permissioned Proof-of-Stake-Authority (PoSA) blockchain layer provides: Hyperledger-based high-throughput, auditable event integrity Zero-knowledge proof mechanisms (ZK-SNARKs) for selective disclosure and compliance verification Immutable forensic traceability suitable for regulated and classified operational contexts Quantum Cyber-Twin Simulation Environment The framework incorporates large-scale cyber twin and adversarial simulation capabilities, enabling: Continuous red-team / blue-team stress testing MITRE-aligned cyber-range modeling at sovereign infrastructure scale Systemic risk evaluation across cyber, operational, and mission-critical domains Performance and Validation Envelope (Illustrative Reference) QANBDG defines high-level architectural performance envelopes, including: Sovereign-scale command-and-control data handling capacity Ultra-high availability and resilience design targets Continuous mission survivability assessment under adversarial stress conditions All performance figures are presented as architectural design envelopes and validated simulation benchmarks, not as commercial service guarantees or deployed operational metrics. Standards and Governance Alignment The architecture is designed to align with leading international cybersecurity, defense, and resilience standards, including: Cryptography: NIST FIPS 203 / 204 / 205 Cybersecurity Governance: NIST Cybersecurity Framework (CSF) 2.0 (Tier-4 orientation) Critical Infrastructure Protection: NIS2 (2025 readiness) Defense Compliance: DFARS 7012, CMMC Level 3+ orientation Continuity and Resilience: ISO/IEC 27001:2022, ISO 22301 Ethical and Legal Posture QANBDG is a defence-only architecture and explicitly excludes: Offensive cyber operations Kinetic enablement Mass surveillance or population-scale monitoring The framework is designed to support constitutionally constrained sovereign defense and aligns with international legal norms and emerging AI governance principles, including IEEE P7009 guidance on autonomous systems. Intended Use and Scope This work is intended for: Sovereign defense and internal security policy design Critical national infrastructure resilience planning Post-quantum cybersecurity research and doctrine development Advanced academic, standards-oriented, and strategic analysis It is not intended as a deployable commercial product or operational cyber-weapon system. Keywords Post-Quantum Cryptography; Zero-Trust Defense; Neuro-Symbolic AI; Blockchain Veracity; Quantum Cyber Twins; Sovereign Cybersecurity; Critical National Infrastructure; Defense Governance.