# DCM Digital: Technical Architecture & Institutional Integrity
**Version 1.0 | February 2026**

## 1. Executive Summary
DCM Digital is an enterprise-grade Decision Intelligence platform designed for the tokenized asset ecosystem. This document outlines the technical safeguards, architectural choices, and integrity mechanisms that ensure bank-grade reliability and regulatory compliance.

## 2. Infrastructure Layer
### 2.1 Backend Persistence
- **Engine**: PostgreSQL hosted on Supabase.
- **Isolation**: Row Level Security (RLS) is enforced at the database level, ensuring strict tenant isolation.
- **Encryption**: Data is encrypted at rest (AES-256) and in transit (TLS 1.3).

### 2.2 Security Perimeter
- **CSP 3.0**: Strict Content Security Policy mitigates XSS and data injection.
- **Anti-Framing**: Comprehensive clickjacking defense via `X-Frame-Options: DENY` and JS frame-busting.
- **RBAC**: Granular Role-Based Access Control (Admin, Analyst, Viewer) enforced server-side.

## 3. The Institutional Audit Hub
### 3.1 Cryptographic Hash Chaining
Every strategic action is logged with a SHA-256 integrity hash.
- **Chaining logic**: `Hash(N) = SHA256(Data(N) + Hash(N-1))`
- **Verification**: The platform provides a real-time integrity validator to detect tampering.

### 3.2 Digital Notarization
Periodic anchoring of the audit chain to an external trust hub (simulated) provides a non-repudiation anchor, preventing retroactive history modification.

## 4. Compliance Framework
### 4.1 GDPR "Regulator-Ready"
- **Portability**: Automated JSON export of all user-linked data.
- **Right to be Forgotten**: Cascading deletion pattern that wipes PII while preserving audit log continuity via salt-based anonymization.

### 4.2 MiCA Mapping
Direct alignment with MiCA Articles (61, 62, 66, 70, 76, 81), providing a clear audit trail for Crypto-Asset Service Providers (CASPs).