Self Checkout (2025)

A pay-what-you-want installation at Art Basel Miami Beach 2025. Three self-checkout kiosks and an online portal. Pay whatever you want — starting at $1 — and the machine prints a receipt. The receipt is the artwork.

Value isn't a fixed fact. It's a consensus that shifts with every new input — and Self Checkout makes that visible.

A split-flap board opened at -$74,211: the exact, itemized cost of the booth, fabrication, shipping, labor, and travel. It ticked toward zero with every payment. The math a gallery hides, shown in public, in real time — transparency as the critique.

Each dollar prints as its own line item, so the more you pay, the longer your receipt. A private choice becomes a public object — an index of what you chose to give. A seed phrase on each receipt unlocks a non-transferable NFT, making the joke literal: you are buying a receipt.

Pay-what-you-want removes the price hierarchy and hands it back to you. And transparency still produced scarcity — with no edition cap, the largest payments became the rarest, the most legible status. Value, revealed as belief plus incentive.

5,837 receipts. $188,917 collected. $114,706 profit. Average payment, $11.41. Acquired by X-Museum, Beijing — and the entire system, from payment processing to smart contracts, is open source.