1. Buy an RH Machine on OpenSea. The clock starts at 15 minutes with you as the last buyer.
2. Every new purchase resets it and puts the new buyer in line. Accepted bids count: the wallet that receives the Machine is the buyer.
3. The first time the clock runs out with nobody buying, the last buyer wins $1,000. The buyer, never the seller.

Read from Seaport fulfilments on Robinhood Chain, so only a real purchase counts. Paid by hand after the round. Self-trading does not qualify.