Now welcoming our first artists and galleries in London

The full story of an artwork — from the studio to the wall it hangs on today.

Attesian gives every artwork a certificate people can trust and a history that can't be faked. It starts the moment the work is made, and it belongs to the artist for good. Galleries, venues, and collectors can all add to the story — but it always stays with the artist.

Can't be tampered withAnyone can check it — no account neededNo crypto, no blockchain
What Attesian gives you

Everything an artwork needs to be believed — in one place.

A proper certificate, a clear history, and a record the artist actually owns. Simple to set up, and easy for anyone to check.

A certificate people can trust

Every work gets a professional certificate of authenticity. Anyone can scan it to confirm it's genuine — no account, no guesswork.

A history that travels with the work

Every exhibition, sale, loan, and owner is kept in one place, building a clear and lasting story over the years.

A record the artist owns

The record belongs to the artist and moves with them from gallery to gallery, city to city. No one else can take it away.

How it works

Built to be trusted — and easy for anyone to check.

Certificates anyone can check

Each work gets a certificate with its own QR code. Scan it and you can instantly confirm the work, the artist, and its history — without an account, and without having to take our word for it.

One record for each artist

Everything about an artist's work lives in a single record. A gallery can start one for you, and when you claim it we tidily merge any duplicates — without breaking certificates that have already been printed.

Honest about how sure we are

Some facts are confirmed by everyone involved; others are simply noted by one person. We always show you which is which, instead of pretending everything is proven.

Nothing is ever quietly changed

History is only ever added to. If something needs fixing, we add a visible correction rather than rewriting the past — which makes a fake history impossible to slip in, even for us.

Our promises

A few rules we hold to — and won't bend, even to grow.

A record is only worth anything if people believe it. These are the promises that keep Attesian honest — including with itself.

Read our promises
  • We don't profit when prices rise

    We take no cut of any sale and don't set values, so we've no reason to talk numbers up.

  • Estimates, never official valuations

    Any price guidance is an honest range — never a formal appraisal for tax or insurance.

  • History is only added to

    We never edit the past. Corrections are added out in the open, for everyone to see.

  • Credit, not control

    Galleries and venues get lasting credit for what they add — but the record stays with the artist.

  • Your private details stay private

    Individual sale prices are never shown publicly. Only the people involved can see them.

  • Nothing fudged by hand

    Reputation and price estimates are worked out by the system, consistently — never typed in by hand.

For artists

Own the record of your work — for good.

A professional certificate of authenticity that anyone can check — far better than a letter on gallery paper, and useful from day one. Your exhibitions and works are kept in one tidy, shareable history. And you're never charged to own your own record.

Register a work
For galleries & venues

Give your artists real certificates — with your name on them.

Offer certificates, artist pages, and full histories under your own brand, without building any of it yourself. You get lasting credit for everything you add — a better experience for your artists, and nothing to maintain.

For galleries

Start your work's story today.

The best time to record an artwork's history is right at the start. Register a work now and it becomes the first, permanent entry in a history no one can rewrite.