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Independent art authentication reports

Is the artwork what it claims to be?

Roy S. personally investigates your case and delivers a signed, evidence-based report.

  • 20+ years in artwork research
  • 160 published case studies
  • Private by default
Review artwork

Reports from $99

Only have a listing link? Start with the case form.

Pablo Picasso Picasso lithograph study artwork image for ConfirmArt expert art authentication evidence reviewPablo PicassoPicasso lithograph studyHenri Edmond Cross Painting attributed to Henri Edmond Cross artwork image for ConfirmArt expert art authentication evidence reviewHenri Edmond CrossPainting attributed to Henri Edmond CrossRoy Lichtenstein Roy Lichtenstein signature study artwork image for ConfirmArt expert art authentication evidence reviewRoy LichtensteinRoy Lichtenstein signature study
ConfirmArt service map: authentication, catalogue research, frame design and conservation assessmentOpen AuthenticationOpen Catalogue researchOpen Frame designOpen Conservation assessment

Real authentication cases

Four examples from the public case archive.

Keith Haring Keith Haring signature study artwork image for ConfirmArt expert art authentication evidence reviewKeith Haring

Keith Haring signature study

A Keith Haring signature study focuses on rhythm, spacing, stroke habit and documented comparables. What can handwriting reveal?

Kees van Dongen Madame Vitti (Italian Edition) artwork image for ConfirmArt expert art authentication evidence reviewKees van Dongen

Madame Vitti (Italian Edition)

Madame Vitti is reviewed through edition context, image transmission and Van Dongen-related evidence. Open the case to see the artwork story unfold.

Pablo Picasso The Slave artwork image for ConfirmArt expert art authentication evidence reviewPablo Picasso

The Slave

The Slave is reviewed through architectural background, documentary support and signature evidence. The report asks whether context and hand align.

Henri Matisse Fruit Seller artwork image for ConfirmArt expert art authentication evidence reviewHenri Matisse

Fruit Seller

A Fruit Seller painting is studied through condition, Fauve context, drawing structure, material age and authorship risk. Which evidence matters most?

Customer experiences

How customers used their report.

Read published reviews on Trustpilot

Evidence prepared for a bank refund process

A buyer reports receiving a detailed assessment in two days and using it to submit refund documentation to their bank.

Dourati · United States · July 2026

Repeated use by an auction-house owner

A professional client reports ordering numerous reports for clients and personal cases, describing the work as precise and fast.

Adrian Jacob · United States · February 2024
Paraphrased from published customer accounts. Individual experiences vary; banks, sellers and other third parties make their own decisions.

Partners and clients

ConfirmArt supports galleries, appraisal platforms, charities, ventures and private collectors.

Selected collaborations and client contexts include gallery inventory, artwork research, authentication support, catalogue documentation and market-facing case files.

Atlantiques Gallery logoAtlantiques GalleryAppraisily logoAppraisily
Goodwill of Central and Northern Arizona logoGoodwill of Central and Northern Arizona
Westmore Gallery logoWestmore Gallery
Ingress Ventures logoIngress Ventures
Invaluable logoInvaluable
eBay logoeBay
and many morePrivate collectors and professionals