EU AI Act Article 50 takes effect 2 Aug 2026 — AI must declare itself. See how to prove your work is human-made →
The Authority for Human Authorship

Your work is human.
Prove it to the world.

TraceHumanity issues cryptographically-signed certificates of human origin for creative works — backed by evidence, verified by experts, and recorded in a public registry, auditable forever.

Certify Your WorkVerify a Certificate
Cryptographically signed
Every certificate is ECDSA-signed with a public key you can audit.
Trust registry →
Independently verifiable
Anyone can verify a certificate by file, hash, or certificate number.
Verify a work →
Open API
OpenAPI 3.1 spec and live Swagger UI — integrate in minutes.
Read the docs →

How certification works

01

Upload Your Work

Submit your creative work and supporting evidence — RAW files, edit histories, progress videos, or live capture sessions. Images and video are supported today; audio and text are on the roadmap.

02

Expert Review

Our reviewers examine your evidence against a structured checklist. Automated checks screen for metadata consistency and file integrity.

03

Receive Your Certificate

Approved works receive a cryptographically-signed certificate embedded with an invisible watermark and C2PA provenance manifest.

The artifact

What you receive

TraceHumanity

Certificate of Human Authorship

Certificate No.TH-2026-SPEC-001
LevelL2 — Evidence Reviewed
Work“Harbour Study IV” · photograph
HolderYour name here
IssuedUpon certification
✓ECDSA signature — Signed with a registered key anyone can audit
✓Invisible watermark — Embedded in the file; survives re-sharing
✓C2PA manifest — Provenance travels inside the file itself
✓Public registry entry — A permanent, independently checkable record
sig: 3045-0221-00SPECIMEN-ILLUSTRATIVE-ONLY-0220-4a6f… · ECDSA P-256 / SHA-256

A specimen for illustration. Every real certificate is cryptographically signed and independently verifiable →

Verification Levels

Five levels of certified authenticity

L1
Self Declared
Signed declaration of authorship. Not certified — declared.
Self-declared
L2
Evidence Reviewed
RAW files, edit histories, or progress documentation reviewed by a TraceHumanity expert.
✓ Certified
L3
Device Verified
Camera or device-signed C2PA capture plus supporting evidence, with certificate chain verification.
✓ Certified
L4
Live Verified
Real-time capture session with challenge codes. Two reviewers required. Highest consumer grade.
✓ Certified
L5
Institutional
Organisation-level certification under governed workflow controls, staff verification, and random audits.
✓ Certified

When a filter says otherwise

Your client just asked: “Is this AI?”

Marketplaces and platforms increasingly auto-flag human work as AI-generated — with no meaningful way to appeal. A TraceHumanity certificate is the affirmative answer: evidence of your process, reviewed by a person, cryptographically signed, and verifiable by anyone you send it to.

What to do if you’re flagged →

Ready to certify your work?

Establish verifiable human authorship — for galleries, buyers, platforms, and the public record.

Begin Certification