🚨 Priority Access Keys (pqarx_pro_2026) expire on thursday, april 4th. Secure your production key now.
Quantum-Resistant Signatures as a Service
Integrate Dilithium2 (NIST Standard) into your workflow in minutes. Secure your assets against the future of computing.
const response = await fetch('http://api.pqarx.com/sign', {method: 'POST',headers: {'Content-Type': 'application/json','x-api-key': 'pqarx_pro_...'},body: JSON.stringify({algorithm: 'dilithium2',payload: '0x4f...a1b'})});const data = await response.json();console.log(data.signature);The Threat
The Quantum Reckoning is Coming.
Large-scale quantum computers threaten to break foundational cryptography (ECDSA, RSA) across all digital systems. Ethereum's Superchain, government IDs, and financial assets are vulnerable.
"The deadline is set: Optimism commits to a 10-year ECDSA deprecation. Waiting is no longer an option."
Breach Timeline
The Anatomy of Quantum-Safe Trust.
From hardware seed to verifiable signature — every step is designed for cryptographic certainty.
Hardware Enclave
STM32 Cyberix Root-of-Trust Chip generates the cryptographic seed in a tamper-proof environment.
Atomic Sanitization
Ephemeral memory architecture ensures zero trace of private keys after signing operations.
Bus Isolation
Physical bus locking prevents side-channel attacks and electromagnetic probing.
Kyber / Dilithium
NIST-standardized post-quantum cryptographic signature generation.
API Plans
Simple, transparent pricing for quantum-resistant security operations.
Enterprise Pilot
- 100k firmas
- Integración personalizada para Blerify/Partner
- ConsultorÃa técnica de implementación
Where PQarx Protects.
From sovereign identity to decentralized infrastructure, we provide the cryptographic bedrock for the next generation of the web.
eIDAS2 Compliant
Digital Identity
Secure government-issued Self-Sovereign Identities. Immutable proof of origin for compliant digital credentials.
Infrastructure
Superchain & DePIN
Quantum-resistant signatures for L2 sequencers and decentralized physical networks. Eliminating sybil attacks entirely.
Real-World Assets
Supply Chain & IoT
Immutable audit trails for critical assets. From pharmaceutical cold chains to carbon credits – verified from sensor to ledger.
Build with PQarx.
Secure Your Future.
Integrate the PQarx API today and future-proof your digital assets. Hardware-signed, quantum-resistant, and ready for the Superchain.
Devs already building