PRIVATE COLLECTION / COLLECTION CARE
Art Authentication: How Collectors Verify a Work Is Real
What authentication is, who does it, what the process looks like for a contemporary or modern work, and what the collector's role is before, during and after the work is acquired.
- 01Authentication for a contemporary work is the process of confirming that the work was made by the artist named in the documentation.
- 02The process is different for living artists (who can authenticate themselves), estates (which maintain authentication boards), and deceased artists (where the catalogue raisonné and prior scholarship are the primary sources).
- 03The collector's role in authentication is to commission a review, to provide the documentation, to receive the report, and to retain the report with the work's record.
- 04Authentication is not the same as condition, provenance, or title; the four reviews are independent, and a complete due diligence covers all of them.
What authentication is
Authentication for a contemporary or modern work is the process of confirming that the work was made by the artist named in the documentation. The process is not the same as condition (the physical state of the work), provenance (the chain of ownership), or title (the legal right to own and transfer the work). The four reviews are independent, and a complete due diligence covers all of them.
The 2026 Art Basel and UBS Global Art Market Report notes that authentication disputes are the most expensive category of dispute in the U.S. art market, with average legal and reputational costs running into the millions of dollars for contested works. The cost of authentication review, by contrast, is small relative to the work's value, and the cost of not commissioning a review can be catastrophic.
Who does the authentication
The authentication source depends on the artist's status. For a living artist, the artist is the primary authenticator, and the artist's studio (or a designated authentication board) issues the certificate. For an artist who died leaving an estate, the estate's authentication board is the primary source, and the board's certificate is the standard documentation. For an artist who died without an estate, the catalogue raisonné and prior scholarship are the primary sources, and authentication is conducted by the catalogue raisonné author or by a recognised specialist.
The authentication source should be confirmed before any acquisition, and the confirmation should be documented in writing. A work that comes to the collector without an authentication source is a work that the collector should not acquire without an independent authentication review.
The authentication process
The authentication process for a contemporary work typically begins with the collector's review of the artist's catalogue raisonné, the artist's exhibition history, and the artist's known works. The collector or the advisor then commissions a review by the artist's studio, the estate's authentication board, or a recognised specialist. The review is documented in writing, and the documentation is retained with the work's record.
The process for a modern or older work typically begins with the catalogue raisonné and prior scholarship. The collector or the advisor reviews the work against the catalogue raisonné entries, the exhibition history, the provenance, and any other documentation. The collector or the advisor then commissions a review by a recognised specialist, and the review is documented in writing.
What the review covers
The authentication review covers the work's physical characteristics (materials, technique, signature, dimensions, edition, and other features), the work's documentation (provenance, exhibition history, publication history, and prior authentication), and the work's comparison to the catalogue raisonné and other reference sources. The review is conducted by a specialist with documented experience in the artist's work, and the review is documented in writing.
A review that does not cover the physical characteristics, the documentation, and the comparison to the reference sources is not a complete review. A review that is conducted by a specialist without documented experience in the artist's work is not a credible review.
The collector's role
The collector's role in authentication is to commission the review, to provide the documentation, to receive the report, and to retain the report with the work's record. The collector's role is not to conduct the review: authentication is a specialist discipline, and the collector who attempts to authenticate a work without the support of a specialist is a collector who is operating alone at the most consequential part of the due-diligence process.
The collector's role is also to retain the report. The report is part of the work's record, and the record is the foundation of the work's value, the work's insurability, and the work's marketability. A work without a retained authentication report is a work that is harder to insure, harder to sell, and harder to pass on.
Common pitfalls
Four pitfalls show up repeatedly. The first is buying a work without an authentication source: the work comes to the collector with the gallery's or the auction house's assurance, but without an independent authentication review. The second is relying on a non-credible authentication source: the source is a gallery, an auction house, or the artist, and the source has a conflict of interest. The third is failing to retain the report: the report is conducted, but the report is not retained with the work's record. The fourth is treating authentication as a one-time event: the work is authenticated at acquisition, but the authentication is not re-confirmed at the next sale, the next loan, or the next major event in the work's history.
A well-run authentication process addresses all four. The collector commissions a credible review, retains the report with the work's record, and re-confirms the authentication at each major event. The advisor's role is to support the collector through the process and to ensure the work's record is current.
- 01The Art Basel and UBS Global Art Market Report 2026Art Basel and UBS ? Accessed August 13, 2026
- 02Collaboration with the Art MarketUNESCO ? Accessed August 13, 2026
Educational editorial content reflecting the author's professional perspective. Not legal, tax, appraisal or investment advice. No specific artwork, seller or transaction paid for inclusion.
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