QRDX Chain Architecture¶

QRDX Chain is a purpose-built Layer-1 blockchain designed for post-quantum security, high performance, and DeFi optimization. This section details the technical architecture and components of QRDX Chain.

Overview¶

QRDX Chain specifications:

Consensus: Quantum-Resistant Proof-of-Stake (QR-PoS)
Block Time: 2 seconds
Finality: Sub-second (single slot finality)
Throughput: 5,000+ TPS
Smart Contract VM: QEVM (Quantum-resistant EVM)

Network Architecture¶

┌─────────────────────────────────────────────────┐
│           QRDX Chain (Layer 1)                  │
│  ┌────────────────────────────────────────┐     │
│  │  Consensus Layer (QR-PoS)              │     │
│  └────────────────────────────────────────┘     │
│  ┌────────────────────────────────────────┐     │
│  │  Execution Layer (QEVM)                │     │
│  │  - Smart Contracts                     │     │
│  │  - QRDX Protocol (AMM)                 │     │
│  │  - Asset Shielding Contracts           │     │
│  └────────────────────────────────────────┘     │
│  ┌────────────────────────────────────────┐     │
│  │  Bridge Layer                          │     │
│  │  - Ethereum Bridge                     │     │
│  │  - Bitcoin Bridge                      │     │
│  │  - Multi-Chain Bridges                 │     │
│  └────────────────────────────────────────┘     │
└─────────────────────────────────────────────────┘

QEVM: Quantum-Resistant Ethereum Virtual Machine¶

QEVM extends the Ethereum Virtual Machine with post-quantum features while maintaining compatibility:

Key Modifications¶

Signature verification using CRYSTALS-Dilithium
Key derivation using CRYSTALS-Kyber
Quantum-resistant address generation
Precompiled contracts for PQC operations

Backwards Compatibility¶

Full EVM bytecode compatibility
Support for existing Ethereum tooling
Seamless migration path for dApps

State Management¶

QRDX Chain implements an advanced state management system:

Merkle Patricia Trie¶

Modified for quantum resistance
BLAKE3 hash function (512-bit output)
Optimized for performance

Account State¶

Includes quantum-resistant public keys
Maintains classical bridge mappings
Efficient storage design

Data Availability¶

State pruning capabilities
Archival node support
Historical data access

Performance Characteristics¶

QRDX Chain is optimized for high performance:

Block Production¶

2-second block time
Single slot finality
High transaction throughput

Resource Requirements¶

Minimum validator specifications: - CPU: 8 cores @ 3.0 GHz - RAM: 32 GB - Storage: 1 TB SSD - Network: 100 Mbps symmetric

Scaling Capabilities¶

Future sharding support
Layer-2 compatibility
Cross-chain interoperability

Development Environment¶

Tools and resources for building on QRDX Chain:

Development Tools¶

QRDX SDK
Web3.js compatibility
Hardhat/Truffle support

Testing Networks¶

Local testnet
Public testnet
Mainnet (launching Q4 2025)

Documentation & Resources¶

API documentation
Code examples
Developer tutorials