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Authenticity issues

The Pollock-Krasner Authentication Board was created by the Pollock-Krasner Foundation in 1990 to evaluate newly found works for an upcoming supplement to the 1978 catalogue. In the past, however, the Pollock-Krasner Foundation has declined to be involved in authentication cases.

In 2006, a documentary, Who the *$&% Is Jackson Pollock?, was made concerning Teri Horton, a truck driver who bought an abstract painting for five dollars at a thrift store in California in 1992. This work may be a lost Pollock painting, but its authenticity is debated. Thomas Hoving is shown in the documentary and states that the painting is on a primed canvas, which Pollock never used.

Untitled 1950, which the New York-based Knoedler Gallery had sold in 2007 for $17 million to Pierre Lagrange, a London hedge-fund multimillionaire, was subject to an authenticity suit before the United States District Court for the Southern District of New York. Done in the painter's classic drip-and-splash style and signed "J. Pollock", the modest-sized painting (15 by 28 1/2 in) was found to contain yellow paint pigments not commercially available until about 1970. The suit was settled in a confidential agreement in 2012.