Human Attestation
Notarization for the AI Age
Prove a verified human reviewed and approved content. Multi-party approval chains with cryptographic identity verification.
AI Can Now Fake Everything
In a world of deepfakes, AI-generated content, and automated everything — how do you prove a human was involved?
AI-Generated Content
Articles, images, videos — all indistinguishable from human-created. No way to prove human authorship.
Automated Approvals
Bots clicking "approve" on contracts, terms, policies. No proof a human actually read it.
Deepfake Signatures
Digital signatures can be automated. Voice/video can be synthesized. How do you prove it was really them?
Human Attestation: Cryptographic Proof of Human Oversight
A verified human reviews content, confirms their identity, and creates an unforgeable attestation record.
How It Works
- 1Content Submitted
Document, image, contract, or any content requiring human review
- 2Human Verifies Identity
Multi-factor authentication, liveness detection, or biometric verification
- 3Review & Attest
Human reviews content and signs cryptographic attestation
- 4Permanent Record
RFC 3161 timestamp + ES256 signature = unforgeable proof
What You Prove
- ✓Who reviewed it
Verified identity of the human attester
- ✓When they reviewed it
RFC 3161 timestamp of attestation
- ✓What they approved
SHA-256 hash of exact content reviewed
- ✓Chain of custody
Multi-party approval chains with full audit trail
Use Cases
Contract Approvals
Prove a human lawyer actually reviewed the contract before signing. Multi-party approval chains for complex deals.
Medical Records
Prove a qualified physician reviewed test results, not just an AI diagnostic. HIPAA-compliant attestation.
Content Moderation
Prove a human moderator reviewed flagged content. Defend against claims of automated censorship.
Research Validation
Prove peer reviewers actually reviewed a paper. Combat AI-generated fake reviews in academia.
Compliance Sign-offs
Prove a compliance officer personally approved a transaction. Required for SOX, AML, KYC audits.
Journalism
Prove a human journalist wrote/verified an article. Combat AI-generated misinformation.
Technical Specifications
Identity Verification
- •Multi-factor authentication (MFA)
- •Liveness detection (anti-deepfake)
- •Government ID verification (optional)
- •SAML/SSO integration for enterprise
Cryptographic Proof
- •ES256 (ECDSA P-256) signatures
- •RFC 3161 timestamps (legal standard)
- •SHA-256 content hashing
- •Public key verification via JWKS
Multi-Party Workflows
- •Sequential approval chains
- •Quorum-based approvals (M-of-N)
- •Role-based attestation requirements
- •Audit trail with full history
API & Integration
- •REST API with webhooks
- •Node.js & Python SDKs
- •Zapier & Make integrations
- •White-label attestation UI
Ready to Add Human Attestation?
Human Attestation is part of CertNode's Proof Stack. Available on all Self-Service plans.