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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.

Pablo Picasso Galerie Louise Leiris artwork image for ConfirmArt expert art authentication evidence reviewPablo Picasso

Galerie Louise Leiris

A Galerie Louise Leiris-related Picasso claim is reviewed through poster model, incomplete transfer and date inscriptions. Open the report for the evidence.

Rembrandt Rembrandt attribution study artwork image for ConfirmArt expert art authentication evidence reviewRembrandt

Rembrandt attribution study

A Rembrandt attribution study follows family iconography, historical identities and seventeenth-century context. The report turns a complex scene into an evidence map.

Jan Cossiers St. John the Baptist artwork image for ConfirmArt expert art authentication evidence reviewJan Cossiers

St. John the Baptist

A St. John the Baptist attributed around Jan Cossiers is reviewed through Rubensian influence, facial technique and comparative school evidence. Read the case.

Fernando Botero Signed painting attributed to Fernando Botero artwork image for ConfirmArt expert art authentication evidence reviewFernando Botero

Signed painting attributed to Fernando Botero

A painting bearing a Botero signature is tested through color, surface, dimensions, inscription area and comparative form. Does the visual language hold together?

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