★★★★★
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 2026Independent 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
- 161 published case studies
- Private by default
Only have a listing link? Start with the case form.
Real authentication cases
Four examples from the public case archive.
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.
Diego RiveraEl amigo de Frida
A Diego Rivera-related drawing is examined through verso labels, documentary claims, format, signature paleography and stylistic comparison. Follow the evidence trail.
Pablo PicassoGiorno Normale
Giorno Normale is studied through ink handling, verso notations, medium, signature and date-line anomalies. The report follows the drawing closely.
Keith HaringKeith Haring signature study
A Keith Haring signature study focuses on rhythm, spacing, stroke habit and documented comparables. What can handwriting reveal?
Customer experiences
How customers used their report.
★★★★★
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 2024Partners 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