Quantum Blockchain GXQS is engineered as an ultra‑lightweight, high‑throughput, quantum‑safe Layer‑1 designed for a world where quantum computers are practical adversaries. As quantum capabilities accelerate breakthroughs in optimization, AI, and simulation, they simultaneously threaten the classical cryptography that secures global finance, identity, and communication.

GXQS is built from first principles to remain secure in a future where:

• RSA and elliptic‑curve cryptography are breakable
• Harvest‑now‑decrypt‑later attacks become widespread
• Digital signatures and identities require post‑quantum protection

GXQS integrates NIST‑standardized PQC algorithms directly into consensus, wallet architecture, and smart‑contract execution. Combined with ultra‑low latency and deterministic finality, GXQS becomes a foundational layer for secure digital value, identity, and applications in the quantum age.

• ML‑KEM (Kyber) for key establishment
• ML‑DSA (Dilithium) for signatures
• SPHINCS+ fallback
• SHA‑3 / SHAKE hashing
• Crypto‑agility for future PQC migrations

• PQC‑secured BFT
• 300–500 ms block times
• ≤ 2 s deterministic finality
• 5,000+ TPS on commodity hardware

• Multi‑PQC key bundles
• Hardware‑backed key storage
• Social recovery
• Account abstraction
• Light‑client verification

• Probabilistic branching
• Verifiable randomness
• Multi‑path execution
• Deterministic GXVM

./docs/ui/gxqs_global_dashboard.png

./docs/ui/gxqs_operations_dashboard.png

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gxqs/
│
├── core/                 # Consensus, networking, PQC primitives
├── gxvm/                 # Quantum-inspired smart contract VM
├── wallet/               # Smart wallet SDK + PQC key manager
├── node/                 # Full node + light client
├── docs/
│   ├── ui/               # UI screenshots
│   ├── whitepaper/
│   └── specs/
└── README.md

No migration risk. No classical crypto bottlenecks.

300–500 ms on commodity hardware.

≤ 2 seconds, globally consistent.

Runs on edge devices where Solana/Ethereum cannot.

New classes of apps: probabilistic finance, multi‑path AI agents, quantum‑inspired games.

MIT / Apache‑2.0

Quantum Blockchain GXQS is a next‑generation Layer‑1 protocol engineered for a post‑quantum world. It integrates NIST‑standardized post‑quantum cryptography (PQC) directly into consensus, identity, wallet architecture, and smart‑contract execution. GXQS achieves ultra‑low latency (300–500 ms block times), deterministic finality (≤ 2 seconds), and high throughput (5,000+ TPS) on commodity hardware.

GXQS introduces:

• PQC‑native BFT consensus
• Multi‑PQC identity and wallet architecture
• Deterministic, quantum‑inspired smart‑contract VM (GXVM)
• Mobile‑first, light‑client‑friendly node design
• Quantum‑safe state proofs and transaction validation

GXQS is designed to remain secure against classical and quantum adversaries while enabling new classes of applications built on probabilistic, multi‑path, and quantum‑inspired logic.

Modern blockchains rely on classical cryptography—primarily elliptic‑curve signatures (secp256k1, ed25519). These primitives are vulnerable to Shor’s algorithm, meaning sufficiently powerful quantum computers can:

• Derive private keys from public keys
• Forge signatures
• Break consensus assumptions
• Compromise historical and future transactions

This creates a global threat:

Harvest‑Now, Decrypt‑Later (HNDL)
Attackers capture encrypted data today and decrypt it once quantum computers mature.

GXQS eliminates this threat by adopting PQC from genesis. It is not a migration or patch; it is a protocol designed for the quantum era.

GXQS assumes adversaries with:

• Classical computing resources
• Quantum computing resources
• Ability to perform HNDL attacks
• Network‑level attacks (eclipse, DoS, partitioning)
• Signature forgery attempts
• State manipulation attempts
• Smart‑contract exploitation

GXQS is secure under:

• Classical adversaries
• Quantum adversaries
• Hybrid adversaries (classical + quantum)

GXQS uses NIST‑standardized PQC algorithms:

• ML‑KEM (Kyber)
  Used for secure session establishment, encrypted channels, and wallet‑to‑node communication.

• ML‑DSA (Dilithium) — primary signature scheme
• SPHINCS+ — stateless fallback for long‑term archival security

• SHA‑3 / SHAKE
  Quantum‑resistant hashing for state commitments and Merkle proofs.

GXQS supports future PQC migrations without breaking:

• Addresses
• Wallets
• Consensus
• Smart contracts

GXQS uses a PQC‑secured BFT consensus optimized for low latency and deterministic finality.

1. Proposal Phase

   • A proposer assembles a block and signs it with ML‑DSA.

2. Pre‑Vote Phase

   • Validators verify PQC signatures and broadcast pre‑votes.

3. Pre‑Commit Phase

   • Validators aggregate PQC signatures and broadcast pre‑commits.

4. Finalization Phase

   • Once ≥ 2/3 PQC‑verified pre‑commits are received, the block is finalized.

• 300–500 ms block time
• ≤ 2 seconds deterministic finality
• 5,000+ TPS on commodity hardware

Classical blockchains rely on elliptic‑curve signatures, which are:

• Vulnerable to quantum attacks
• Slower to verify at scale
• Hard to aggregate securely

PQC signatures (ML‑DSA) are:

• Faster to verify in batch
• Resistant to quantum attacks
• More efficient for BFT voting rounds

• Full Node
  Stores full state, participates in consensus.

• Light Client
  Verifies PQC state proofs without storing full history.

• Mobile Node
  Optimized for low‑power devices.

• PQC‑secured message envelopes
• Adaptive bandwidth throttling
• Low‑latency propagation

• PQC‑verified Merkle proofs
• Stateless client support
• Efficient snapshot distribution

GXVM introduces deterministic, quantum‑inspired execution:

• Probabilistic branching
• Verifiable randomness
• Multi‑path execution
• Deterministic outcomes
• Parallelizable state access

GXVM includes:

• Arithmetic ops
• State ops
• Branch ops
• Randomness ops
• Multi‑path ops
• PQC ops

All probabilistic behavior is derived from:

• Verifiable randomness
• Block commitments
• Validator‑generated entropy

GXQS wallets use multi‑PQC key bundles:

• ML‑DSA signing keys
• ML‑KEM encryption keys
• SPHINCS+ archival keys

• Social recovery
• Hardware enclave support
• Account abstraction
• PQC light‑client proofs

Addresses are derived from PQC public keys using SHA‑3.

GXQS supports full PQC‑verified light clients:

• PQC Merkle proofs
• PQC block headers
• Stateless verification
• Mobile‑first design

Light clients can verify:

• Transactions
• State transitions
• Consensus votes
• Block finality

• Fixed or capped (configurable)

• PQC‑secured validator staking
• Slashing for equivocation or downtime

• Block rewards
• Transaction fees
• Priority fees

• On‑chain PQC‑signed proposals
• Validator‑weighted voting

• PQC consensus
• GXVM
• Wallet SDK

• Mobile nodes
• PQC state proofs

• Bridges
• DEX
• PQC identity layer

• Compliance modules
• Institutional wallets

GXQS is the first blockchain designed from the ground up for the post‑quantum era. By integrating PQC into every layer—consensus, wallets, contracts, and networking—GXQS delivers:

• Quantum‑safe security
• Ultra‑low latency
• Deterministic finality
• Mobile‑first scalability
• Quantum‑inspired programmability

GXQS is not an evolution of existing chains.
It is a new category of blockchain built for a world where quantum computers are real adversaries.

• PQC — Post‑Quantum Cryptography
• ML‑DSA — Dilithium signature scheme
• ML‑KEM — Kyber key encapsulation
• SPHINCS+ — Stateless hash‑based signature scheme
• BFT — Byzantine Fault Tolerance
• GXVM — GXQS Virtual