Kusama's work is collectible at every level, from major canvases to signed screenprints, and each tier authenticates differently. Her paintings and unique works trade actively but across a wide range of values, with the strongest demand for her signature motifs: Pumpkins, Infinity Nets and Flowers; for these, provenance, condition and, on recent works, a studio-issued registration card are what a buyer relies on. Her prints are mostly screenprints, hand-signed, numbered, dated and titled in pencil, published by houses such as Toki-no-Wasuremono and referenced in the catalogue raisonné Yayoi Kusama Prints. The nuance matters: the Yayoi Kusama Foundation only runs a registration-number check against its records. So across originals and editions alike, provenance does the heavy lifting. At Singulart, we partner with specialist galleries that handle authentication, so every Minimalist-inflected Kusama work is checked for signature, registration and edition detail and comes with a certificate of authenticity.