Self Checkout (2025)
5,837
Receipts
$188,917.51
Total income
-$74,211.00
Board opened at
+$114,706.51
Board closed at
$11.41
Avg. payment
With Jalil Wahdatehagh
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.
More than 5,000 people collected its 5,837 receipts: 3,475 onchain, 263 online and 2,099 in person. Board closed at +$114,706.51. Total income $188,917.51. Average payment $11.41. X Museum, Beijing acquired the physical installation. Holders can update their piece with the seed phrase on the paper receipt. The entire system, from payment processing to smart contracts, is open source.
