Real client case reviewed by ConfirmArt for Montreux Jazz Festival poster, attributed or related to Keith Haring. The public page presents selected visual evidence and a rendered report viewer without exposing the private commissioned PDF.
Keith Haring authentication evidence image 1: Montreux Jazz Festival posterKeith Haring authentication evidence image 2: Montreux Jazz Festival posterKeith Haring authentication evidence image 3: Montreux Jazz Festival posterKeith Haring authentication evidence image 4: Montreux Jazz Festival posterKeith Haring authentication evidence image 5: Montreux Jazz Festival posterKeith Haring authentication evidence image 6: Montreux Jazz Festival posterKeith Haring authentication evidence image 7: Montreux Jazz Festival posterKeith Haring authentication evidence image 8: Montreux Jazz Festival poster
Report structure
Section summaries
01
Verso (Back Side)
"Certificate of Authenticity" sheet with multiple stamps and hand–written entries. The attached COA is printed THE KEITH HARING ESTATE — CERTIFICATE OF AUTHENTICITY , with blue ink graphics of the radiant–baby motif and several circular stamps (two reading NAKAMURA KEITH HARING COLLECTION , another AUTHORIZED BY THE ESTATE OF KEITH HARING ). The form is completed in blue ballpoint as follows: Title: "Untitled"; Date: "84"; Dimensions: "9 × 13 in"; Medium: "Mixed"; Edition \ : "Limited." A cursive signature reading
02
Catalogue Note
In 1983 the Montreux Jazz Festival invited Keith Haring to create its official poster. Haring produced a trio of designs—now canonical in the Festival's poster history—each depicting jubilant, instrument-playing figures drawn in his bold black contour and flat, high-chroma palettes. The three versions are distinguished by their ground colourways (yellow, pink, and green), but share a consistent composition and typography tied to the 17 e Festival (8–24 July 1983).
03
Inauthenticity Concerns
The painted work emulates the 1983 Montreux poster imagery but departs from the authenticated triptych in medium, construction, palette, drawing, typography, and inscriptions . The following observations compare the subject piece (painted board) with a known original poster from the triptych (fig. The subject exhibits layered brushwork, ridges, lap marks, and small craters throughout the yellow field and pink border—consistent with hand–applied acrylic or similar paint, and inconsistent with the flat, even deposit
Authentication evidence
Selected close details from the human review
Verso (Back Side)"Certificate of Authenticity" sheet with multiple stamps and hand–written entries. The attached COA is printed THE KEITH HARING ESTATE — CERTIFICATE OF AUTHENTICITY , with blue ink graphics of the radiant–baby motif and several circular stamps (two reading NAKAMURA KEITH HARING COLLECTION , another AUTHORIZED BY THE ESTATE OF KEITH HARING ).Inauthenticity ConcernsThe painted work emulates the 1983 Montreux poster imagery but departs from the authenticated triptych in medium, construction, palette, drawing, typography, and inscriptions . The following observations compare the subject piece (painted board) with a known original poster from the triptych (fig.
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Complete front image
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