CERTIFICATES OF AUTHENTICITY FOR ARTWORKS

Certify your artwork in style

Create your artist profile and add artworks - proofmark will generate certificates for you.

Create your free account

HOW IT WORKS

Create your first certificate in three simple steps

Set up your artist profile

Add the details collectors need to recognise you: your bio, image, links, and signature.

Document the artwork

Add photos, title, medium, dimensions, year, and edition details to create a complete record.

Share the certificate

Send it as a link, print it, or connect it to a proofmark.art tag attached to the artwork.

CERTIFICATE OF AUTHENTICITY

A certificate page for every work

Create a certificate of authenticity that documents the artwork, introduces the artist, and helps collectors discover what you create next.

Certificate page A clean, shareable URL for each work - easy to send to collectors, galleries, marketplaces, or export when needed.

Artist portfolio A creator page showing your portfolio, available works, and where pieces are located around the world.

Stay in touch Notify collectors when you add new artworks, and see how each artwork moves around the world.

Artwork COA

Print COA

PROOFMARK TAGS

A physical link to the certificate

proofmark.art tags are NFC stickers you can attach to the artwork, giving collectors a simple tap-to-open link to the certificate.

Proofmark starter kit stickers beside the back of a canvas

One-time offer Starter kit (10 artworks) $30.00

Proofmark NFC tag roll and tag strips beside a canvas

Volume pack (5-100 artworks) From $2.42 per tag

ATTACH TO ARTWORK, FRAME, PACKAGE, OR PRINTED CERTIFICATE

FAQ

Certifying your artwork, explained

Why do I need to certify my artwork?

A certificate gives each work a clear record of authorship, artwork details, provenance, and verification. It makes the piece easier to share, sell, insure, and trust after it leaves your studio. It also gives collectors the option to see your new artworks.

Is proofmark.art free to use?

Yes, proofmark.art is free to use. After you create an account, you will have access to:

Unlimited artwork registration.
Unlimited certificate generation for your artworks, with a shareable certificate link and a printable certificate template.
A public portfolio page where collectors can view your artworks.
Visit tracking for your certificates, artwork pages, and portfolio.

Do I need to buy a proofmark.art tag?

No. The proofmark.art tag is optional.

You can create certificates, share certificate links, print certificates, and manage your portfolio without buying a tag. The tag is simply a physical NFC sticker that lets collectors tap the artwork and open its digital certificate.

What is a proofmark.art tag?

A proofmark.art tag is an NFC sticker that can be attached to the physical artwork and linked to its certificate of authenticity.

When someone taps the tag with their phone, they can open the artwork's digital certificate and view its details.

Is my data secure?

You stay in control of your data.

You can edit or delete your profile, artworks, and certificates from your account at any time. We also take care to protect the information stored on proofmark.art and keep your public pages limited to the details you choose to share.

Will my certificate be stored forever?

Proofmark certificates are designed as long-lived public verification pages. Issued certificates may remain accessible for collector verification even if an account changes later. You can export your certificates at any point.

Can someone copy the certificate?

Someone can copy a screenshot or link, but they cannot take over the official Proofmark record or reassign a locked tag. Verification should happen from the proofmark.art URL opened by the NFC tag.