Post-Quantum Authentication Infrastructure
Clustrauth™ is a hybrid post-quantum authentication engine. Authenticate any document with mathematical guarantees — Clustrauth™ computes a SHA3-256 integrity anchor and secures it with NIST-standardized hybrid cryptography for verifiable long-term protection.
⚠ Harvest-Now, Decrypt-Later
Adversaries are already collecting signed documents today, waiting for quantum computers capable of breaking RSA and elliptic curve cryptography. Clustrauth™ provides the cryptographic shield required to defend against retroactive forgery before the threat materializes.
Positioning
Clustrauth™ proves document integrity. E-signature platforms record intent; Clustrauth™ cryptographically ensures the underlying data remains unchanged and quantum-secure.
Traditional E-Signature
Captures identity at a moment in time. Requires vendor-dependent verification. No long-term quantum resistance.
Clustrauth™
SHA3-256 integrity anchor secured with dual algorithms. Any byte-level modification invalidates the proof instantly.
Cryptographic Model
Every authenticated document is secured with two independent algorithms. If either the classical or post-quantum scheme is theoretically compromised, the other maintains document integrity.
Clustrauth™ creates an immutable cryptographic anchor linked to the file's unique hash. Verification re-validates the document against this anchor using our multi-vector authentication engine.
Key Management
Documents are anchored using FIPS 204 compliant key management. The original file remains untouched, while Clustrauth™ secures the cryptographic proof.
SHA3-256 hash computed over the file. This creates a unique cryptographic fingerprint; any byte-level change produces a completely new hash.
The integrity anchor is secured by isolated enterprise-grade Ed25519 and ML-DSA keys. All cryptographic proof is securely managed within our vault.
A Certificate of Authenticity is issued with a unique Certificate ID (SBH-XXXXXXXXXXXX). This ID links the file to its immutable cryptographic proof.
The system re-validates the file against its cryptographic anchor, ensuring the document hash and both dual signatures remain valid.
Verification Lifecycle
The full lifecycle from document submission to third-party verification. Every authentication includes timestamped proof and a cryptographic audit trail for legal, compliance, and evidentiary purposes.
Submit any file up to 50MB. Clustrauth™ anchors the integrity with hybrid cryptography, records an RFC 3161 timestamped proof of authentication via DigiCert, and secures everything within our infrastructure.
Keep your original file unchanged. Share the Certificate ID alongside it — the ID provides the link back to the document's cryptographic proof.
Any third party validates the file against its Cert ID. Our engine re-checks the integrity anchor and signature validity in real-time, generating a cryptographic audit trail of every verification.
Encapsulated Multi-Vector Authentication
Unlike conventional signing platforms that produce a single certificate, Clustrauth™ generates four independent evidence components — each carrying its own cryptographic authentication.
Cryptographic proof of document integrity. Contains unique Certificate ID, SHA3-256 hash, and dual Ed25519 + ML-DSA-65 signatures binding content to signing event.
Forensic handling record from submission to certification. Separately authenticated document with its own Certificate ID — not merely descriptive metadata.
Tamper-evident SHA3-256 hash chain of every authentication event. Modification of any entry invalidates all subsequent entries. Independently authenticated.
Third-party temporal proof from DigiCert TSA. Verifiable by any party using standard tools — remains valid even if Smart Banner Hub ceases to operate.
Enterprise Applications
Any organization that needs to prove document integrity — and requires that proof to survive the quantum era.
Authenticate executed contracts and legal filings. Prove the document a counterparty received is byte-identical to the document you authenticated decades later.
Legal · Finance · Real EstateAuthenticate audit reports and regulatory submissions. Provide verifiable proof of document integrity for HIPAA, SOX, and industry mandates.
Healthcare · Finance · GovernmentAuthenticate research papers, design files, and trade secrets. Establish provable priority with cryptographic evidence that predates disputes.
R&D · Pharma · TechnologyIssue tamper-proof diplomas and training records. Recipients share the file and Certificate ID — verifiers check independently via the Clustrauth™ engine.
Education · HR · Professional ServicesStandards Alignment
Clustrauth™ aligns with published NIST post-quantum migration timelines and implements finalized — not draft — standards.
ML-DSA implementation follows the approved NIST standard for post-quantum digital signatures. The globally recognized baseline for quantum safety.
Hybrid architecture ensures authenticity remains verifiable beyond projected timelines for cryptographically relevant quantum computers.
If either Ed25519 or ML-DSA is theoretically compromised, the other maintains document integrity. Both must fail for a breach.
Clustrauth™ provides cryptographic certainty. Any change to the file produces a different integrity anchor, instantly revealing tampering.
Named among leading post-quantum cryptography innovators alongside Apple, Google, Microsoft, NVIDIA, J.P. Morgan, and Signal.
RFC 3161 timestamped proof anchored with DigiCert trusted timestamp authority. Cryptographic audit trails designed to meet FRE 901(b)(9) and Daubert evidentiary standards.
White-Label Platform
Deploy Clustrauth™ under your own brand. Your logo, your domain, your pricing — we operate as invisible infrastructure. Full API + branded Studio UI for your end-users.
$2,500/mo
2,000 signatures/month. Launch your branded platform.
$7,500/mo
10,000 signatures/month. Scale with custom domain.
$15,000/mo
50,000 signatures/month. Enterprise-grade volume.
$45,000+/mo
100,000+ signatures. Dedicated infrastructure.
API Access
Don't need a branded platform? Access Clustrauth™ directly through our REST API. SBH branding on certificates.
$249/mo
50 signatures included. Fastest path to integration.
$999/mo
250 signatures included. Built for production volume.
Custom
Custom volume, custom rates. Annual contracts available.
Enterprise Onboarding
From initial review to live authentication in your production environment.
Security model walkthrough. Cryptographic audit review. Deployment model selection based on compliance requirements.
API credentials for your testing environment. Authenticate test payloads and validate verification flows end-to-end.
Production environment setup. Key management configuration. SLA finalization and engineering support.
Live production authentication. Real-time monitoring. Priority ongoing support.
Clustrauth™ is the post-quantum authentication engine of Smart Banner Hub LLC · Beaverton, Oregon · USPTO Serial 99562511
Discuss White-Label deployment, API integration, and volume authentication directly with the founding team.