Bitcoinshrooms

Bitcoinshrooms is a collection of pixel art images inscribed on the Bitcoin blockchain through the Ordinals protocol, reported at roughly 222 works. Sotheby's has described the collection as an homage to 8-bit era graphics that comments on Bitcoin's culture and technical history, using recurring mushroom imagery and direct references such as BIP39 seed phrases and the book The Sovereign Individual.

The artist works under the pseudonym Shroomtoshi and has not made a legal name, birth date, birthplace, or any other biographical detail public. The official BitcoinShrooms site states that the works are "created and inscribed solely by the independent artist known as Shroomtoshi." Sotheby's, in its own sale materials, describes Shroomtoshi as "a technically inclined digital artist." As of 2026-07-15, no obituary, gallery statement, or major art press report documents the artist's death, and available coverage continues to treat Shroomtoshi as an active, working pseudonymous artist. Because the underlying identity is deliberately undisclosed, standard biographical fields such as education, nationality, and gender cannot be confirmed from public sources.

The name "Bitcoinshrooms" is used in press and in auction materials both for the artwork collection and, informally, as shorthand for the artist behind it. The auction market artist of record is Shroomtoshi; no evidence points to a separate individual using "Bitcoinshrooms" as a personal name.

Coverage of Bitcoinshrooms has come almost entirely from crypto and financial trade press, including CoinDesk, The Block, Coinspeaker, and Blockworks, alongside Sotheby's own sale materials, rather than from mainstream art criticism. Sotheby's own sale materials describe Shroomtoshi as "a technically inclined digital artist." Trade press coverage of the December 2023 sale emphasized the scale of the result relative to expectations rather than formal aesthetic judgment. No exact worded quote from a named critic at a major art press outlet has been located, and the profile does not attribute one.

Bitcoinshrooms entered the auction market through Sotheby's online sale "BitcoinShrooms: An Ordinals Auction," which ran from 6 to 13 December 2023 in New York and offered three works from the collection. The top lot, S Shroom, a pixel mushroom referencing Super Mario imagery, sold for USD 241,300 per CryptoNews's report of the sale, a result cited as the collection's auction record and among the highest prices paid for a Bitcoin Ordinals artwork at the time. Other coverage of the same sale, including CoinDesk, attributes slightly different per-lot figures to the three works, so the exact lot-to-price mapping carries some residual uncertainty even though the USD 241,300 top price and the 13 December 2023 date are consistent across sources. In CryptoNews's breakdown, the other two lots, Sovereign Individual and BIP39 SEED, sold for USD 107,950 and USD 101,600 respectively. Together the three works brought approximately USD 450,000, roughly five times the combined presale estimate. No public sale exceeding this record has been identified as of 2026-07-15.

Bitcoinshrooms sits at the intersection of a new authentication model and a thin auction record. There is no catalogue raisonne and no independent certificate of authenticity program; each work's provenance rests on its Bitcoin Ordinals inscription, which is permanent but does not by itself establish market history the way a long auction record would. The entire public auction record for the collection currently rests on a single Sotheby's sale of three works in December 2023, and even the per-lot figures from that sale vary slightly across outlets, so collectors should treat the USD 241,300 top price as a data point from one auction event rather than as a stable market trend. The artist's pseudonymity is a defining feature of the project rather than an oversight, but it also means collectors cannot rely on biography, exhibition history, or institutional collecting to corroborate value the way they might with a named, long-documented artist.