Free tool for artists

Certify your artworks in 2 minutes.
Free, for life.

A digital certificate of authenticity for each of your works. Cryptographic fingerprint, timestamp, verifiable QR code. You keep full ownership.

Certify my first artworkI already have an account
  • No credit card
  • You own your works
  • Permanent public registry

Why a Jiko certificate changes the game

Three guarantees that turn a simple declaration into solid proof.

Timestamped proof of priority

Each artwork receives a SHA-256 cryptographic fingerprint sealed at issuance. A digital proof admissible as evidence, attesting that your creation existed at that precise moment.

Enhances every sale you make

Your buyers leave with a professional, one-scan-verifiable document. The certificate travels with the artwork through every resale, strengthening its traceability.

Permanent public registry

A stable public page on jikoart.org for each certified work. Consultable forever, without an account, even decades later.

How it works

Three steps, two minutes, zero friction.

  1. 1

    Create your artist account

    Quick email sign-up. No proof required, no credit card asked.

  2. 2

    Submit your artwork

    Upload a high-quality image and fill in the metadata (title, dimensions, technique, date of creation).

  3. 3

    Download your certificate

    Get a professional A4 PDF instantly, with a verification QR code and a public fingerprint indexed on the Jiko registry.

What your certificate contains

A document designed to be easy to read, hard to challenge.

Authorship declaration

Your identity, the artwork's title and a declaratory statement acknowledging your moral rights.

SHA-256 image fingerprint

A unique 64-character digital signature. If the image is modified by a single pixel, the fingerprint changes entirely.

Public verification QR code

Lets anyone consult the matching registry page at jikoart.org/registry/… without creating an account.

Unique reference and timestamp

A non-reusable UUID identifier and a UTC issuance date, written immutably into our database.

Image usage rights

You choose the licence that applies to image reproduction: all rights reserved by default, or Creative Commons of your choice.

Handwritten signature area

A dedicated space to physically sign before handover or printing, alongside the date.

Full transparency

Trust is built on honesty. Here is what our certificate proves — and what it does not.

What the certificate proves

  • That a specific image was deposited on Jiko Art at a given date and time.
  • That this image has not been modified since (detected automatically).
  • That the registered artist declared being the author of this work, under their own responsibility.
  • That this deposit is indexed in a permanent public registry accessible to anyone.

What the certificate does not (yet) prove

  • That this is the work's very first existence in the world.
  • The civil identity of the artist (an optional KYC verification is coming soon).
  • The market or artistic value of the work.

The Jiko certificate is a credible and verifiable first step. It grows richer with each of your exhibitions, sales and publications.

Frequently asked questions

Does the Jiko certificate have legal value?
It constitutes a timestamped digital proof of priority, admissible as evidence in case of dispute.
How much does certification cost?
Nothing. The certificate of authenticity is free and unlimited for all registered artists.
Do I have to sell on Jiko?
No. You can use Jiko solely as a registry to certify your artworks, without ever putting them up for sale.
What happens if I resell a certified artwork?
When a sale is made through Jiko, a complementary transfer certificate is issued and linked to the initial one.
And if I delete my account?
Your account can be deleted, but certificates already issued remain in the public registry.
What's the difference with an NFT?
An NFT proves ownership of a digital token on a blockchain. The Jiko certificate proves declaration of authorship by an identified artist, backed by a verifiable centralised registry.

Your artwork deserves a trace.

Join the artists who chose to protect and showcase their work with Jiko Art.

Certify my first artworkOr explore the platform