QuantumHarmony × ModulusZK

Post-Quantum Consensus meets First-Order Logic Proving

Integration Proposal January 2026 Technical Scoping

Paraxiom × ModulusZK Partnership Discussion

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The Opportunity

"Verifiable decision trails over incentive-based trust"

QuantumHarmony Brings

  • Post-quantum L1 with SPHINCS+ consensus
  • QKD-derived entropy (hardware quantum)
  • Proof of Coherence mechanism
  • STARK verification gate in consensus
  • CCAE adversarial evaluation framework

ModulusZK Brings

  • FOL arithmetization (10-100× faster)
  • Direct logic-to-polynomial mapping
  • Compliance attestations
  • Cross-chain proof infrastructure
  • Layer X proof coordination
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First-Order Logic Arithmetization

ModulusZK's core innovation: skip the circuit compilation step

Traditional ZK Pipeline

// Standard approach (SNARKs) Logical Statement ↓ Circuit (R1CS) ↓ Polynomial Constraints ↓ Proof

FOL Pipeline

// ModulusZK approach Logical Statement ↓ Polynomial Constraints ↓ Proof // Skips circuit compilation // 10-100× cost reduction

Based on Dr. Murdoch Gabbay's polynomial semantics for first-order logic. Complex predicates compile to a single polynomial — verification reduces to evaluating at a random point.

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CCAE: Coherence & Compliance Adversarial Evaluation

"Not a static code audit — a stateful adversarial evaluation of consensus trajectories under compliance constraints."

Stateful Fuzzing

Multi-epoch test scenarios with network partitions, Byzantine validators, timing attacks, entropy manipulation

Coverage-Guided

WASM runtime coverage, consensus state machine edges, STARK verifier branches, economic paths

Invariant Oracles

Safety (no double-finalize), Liveness (bounded progress), Compliance (valid proof acceptance), PoC (coherence bounds)

Reproducible

Deterministic sandbox with seedable PRNG, virtual clock, snapshot rollback — minimal repro traces

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Proposed Integration Architecture

ModulusZK Layer Fast FOL execution proofs • Compliance predicates • Audit attestations
QuantumHarmony STARK Gate Proof verification • Consensus gating • Finality anchoring
CCAE Harness Adversarial testing • Coverage instrumentation • Regression suite

ModulusZK proofs pass through our STARK gate. Our CCAE harness provides adversarial hardening — coverage feedback they likely don't have internally.

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What CCAE Provides to ModulusZK

Coverage signals on their proof system running through our consensus

Signal Class What We Track Value
Verifier Branch Coverage Which code paths proofs hit during verification Find edge cases
Constraint-Family Hits C_transition, C_boundary, C_permutation activation Ensure full coverage
Proof Morphology Size buckets, query counts, FRI depth, transcript length Guide toward "weird but valid"
End-to-End Gating precheck → verifier → finality pipeline behavior Find consensus exploits

Their proofs get hardened by running through our adversarial harness under Byzantine conditions.

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Technical Questions to Resolve

1. Quantum Resistance

Is FOL arithmetization based on hash functions (STARK-like, quantum-safe) or elliptic curves (SNARK-like, quantum-vulnerable)?

2. Verification Interface

Can ModulusZK proofs pass through a STARK-compatible verification gate, or do they require a custom verifier?

3. Substrate Integration

Polkadot support — native parachain integration or external bridge? We run Substrate directly.

4. Layer X Coordination

How does Layer X interact with our finality layer? Does it complement or compete?

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Partnership Structure Options

Model Structure When to Use
Model A ModulusZK as Proof Provider They generate compliance proofs, we verify through STARK gate
Model B CCAE as Service We run their proof system through CCAE, deliver threat model + regression suite
Model C Joint Ecosystem Grant Polkadot Treasury or other ecosystem funding
Model D Strategic Alignment Token swap or equity arrangement for long-term integration

Current stage: Technical scoping first, then determine which structure creates real value for both sides.

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QuantumHarmony Current Status

Live Infrastructure

  • Alice — OVH Montreal (51.79.26.123)
  • Bob — OVH Beauharnois (51.79.26.168)
  • Charlie — DigitalOcean Frankfurt (209.38.225.4)
Testnet Live SPHINCS+ Consensus 6s Block Time

Near-Term Focus

  • Security audit
  • Additional validator onboarding
  • Mainnet preparation
  • STARK gate implementation
  • CCAE harness completion
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Next Steps

1. Technical Deep-Dive

Clarify FOL quantum resistance, verification interface compatibility, Substrate integration path

2. Proof Format Spec

Share proof format documentation to assess STARK gate compatibility

3. Test Corpus

Sample proofs to run through CCAE harness for initial coverage analysis

4. Scope Definition

Define specific compliance predicates to target (policy proofs, audit attestations)

Contact: sylvain@paraxiom.org

GitHub: github.com/Paraxiom/quantumharmony

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