Every AI Action. Signed. Verified. Trusted.
AI agents don't just act — now they prove it. QuantoSign makes every AI-generated document, decision, and transaction legally verifiable and tamper-evident.
The Problem With Unsigned AI
AI agents are generating more documents, decisions, and transactions than ever — with zero legal accountability attached.
No Legal Provenance
"We have no way to prove which AI agent signed a document — or whether it was tampered with after." AI-generated documents carry no legal weight without verified provenance. Every unsigned AI output is a liability waiting to surface in court.
Regulatory Traceability
"Regulators are asking us to prove our AI decisions are traceable to an authorized agent." Audit requirements for agentic AI are accelerating globally. Proving who signed what — and when — is no longer optional for regulated industries.
Court-Admissible Signatures
"We need AI-signed contracts that hold up in court." Digital signatures from AI must meet the same legal bar as human signatures. Without the right infrastructure, AI-generated agreements carry zero legal weight in any jurisdiction.
AI Agents You Can Trust. Outcomes You Can Prove.
Organizations using QuantoSign to make AI actions legally verifiable.
A professional services firm had AI agents generating hundreds of contracts per day — all unsigned, all legally unverifiable, all requiring manual attorney review that couldn't scale.
QuantoSign automatically signs every AI-generated contract with a quantum-resistant signature linked to the specific agent and its authorization level. Manual review dropped by 85%.
A financial regulator demanded a complete audit trail proving every AI-generated lending decision was made by an authorized, policy-compliant agent. The team had no way to produce this evidence.
QuantoSign provided signed, timestamped evidence for every decision — date, agent identity, policy version in effect — accepted by the regulator as legally valid evidence.
A supply chain platform used AI agents from multiple vendors in a single workflow — and couldn't verify which agent made which decision at contract time. Disputes were unresolvable.
QuantoSign creates a signed chain of custody across every agent in a multi-party workflow. Every hand-off is verifiable, every signature is attributable, every dispute is answerable.
Compliance & Legal Standards
Meeting the legal and regulatory standards that make AI signatures enforceable worldwide.
The Control Plane for the Autonomous Economy
Every AI action signed. Every decision traceable. Every contract legally verifiable. See QuantoSign in action.