Is the verdict made by AI?
No. ConfirmArt authentication is human-led. AI may support bounded research tasks such as image search, market data, document tracking or charting, but it does not decide attribution.
Verify & Value
Verify & Value.
Authentication and true valuation for collectors and enthusiasts.
Flagship services
Human authentication, catalogue reference, frame advice and restoration review.
Start with the most objective lead available. A catalogue reference can begin from $4.99, while full authentication remains a human expert service.
Expert authentication workflow
Built for collectors, heirs, galleries and market professionals who need a serious answer.
ConfirmArt documents each case through images, support, technique, signature, inscriptions, provenance material and comparative references. The goal is not a quick opinion, but a clear expert file that a client can keep, share and verify.
Every public page keeps the same conversion path: open a private authentication case, add images when available, and continue the review through the client workflow.
Henri Edmond CrossPainting attributed to Henri Edmond Cross
A coastal painting signed Henri Edmond Cross is reviewed through composition, support, provenance, signature and modern material clues. Open the case to see the findings.
RembrandtRembrandt 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.
Fernando BoteroMujer Desnuda
A signed nude attributed to Botero is examined through support, back-side evidence, provenance, catalogue context and signature construction. Read the full assessment.
Historic & Old Master CasesJupiter, Io and Juno
A mythological scene linked to Canini is examined through restoration, literature, composition and related commissions. The case connects object study and scholarship.
Pablo PicassoPicasso lithograph study
A Picasso lithograph case is tested through certificate, print context, signature and authenticity concerns. Open the report to see the evidence chain.
Pablo PicassoPainter and model drawing
A painter and model drawing is reviewed through paper, crayon, certificate evidence and catalogue context. The report follows support and source together.
Pablo PicassoFaune rieur (Pour Madame Coudert)
Faune rieur is reviewed through line quality, public offering history, signature/date evidence and drawing grammar. The report asks whether the hand convinces.
Keith HaringKeith Haring signed artwork
A signed Keith Haring object and exhibition material are reviewed through autograph evidence, event context and visual clues. The report follows the trail.
Keith HaringKeith Haring signature study
A Keith Haring signature study focuses on rhythm, spacing, stroke habit and documented comparables. What can handwriting reveal?
Jean-Michel BasquiatUntitled
An untitled Basquiat claim is reviewed through visual language, marks, support and provenance signals. The case shows why first impressions are not enough.
Jean-Michel BasquiatUntitled Basquiat study
A Basquiat study is examined through text, composition, surface and comparative evidence. Open the report to see how the claim is tested.
Pierre-Auguste RenoirRenoir signature study
A Renoir signature study compares graphological variation across famous drawings and prints. The report asks how much variation remains credible.
Authentication intake
Submit an artwork for authentication
Open a private case with only an email. Images, dimensions, provenance and notes can be added now or later.
FAQ
Common questions before opening a case
What should I send first?
An email is enough to open a case. The most useful images are the full front, reverse, signature, labels, inscriptions, frame, support and any damage or restoration details.
What is included in valuation?
Valuation is built from documented market research, comparable works, condition, scale, medium, attribution strength and the practical context in which the artwork may be offered.
Will my private report be public?
No. Public pages show selected real-case samples and rendered report images. Private client reports, emails, source documents and identities remain controlled by the client.
Authentication reports
The principal ConfirmArt service: case intake, expert review and a final documented report.
Review authentication serviceFraming proposals
Generate a frame brief from an artwork image and offer it to a registered framer.
Create a frame proposalCatalogue reference from $4.99
Search indexed catalogues and bibliography by dimensions, medium, year and optional title.
Search catalogue referencesStart a private case
Request Authentication Service
Only your email and service selection are needed to submit the request. Optional images, dimensions and notes can be added now or later.
Payment is requested only for the Authentication report. Catalogue search, advisory, restoration and local inspection requests are reviewed first so the scope can be confirmed.
Authentication is a human expert review. ConfirmArt may use AI for bounded research support such as database, image, book or provenance searches, but not as a classifier verdict.
- Complete front image
- Reverse, support, frame and condition details
- Signature, inscriptions, labels or seals
- Invoices, certificates, provenance or catalogues
- Comparative images, references or previous opinions, if available
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.
Goodwill of Central and Northern Arizona
Westmore Gallery
Ingress Ventures
Invaluable
eBayand many morePrivate collectors and professionals