For CryptoPunks on Ethereum mainnet, compute the 24-hour executed-secondary-sale-price TWAP in wei for [2026-09-21T19:15:45.000Z, 2026-09-22T19:15:45.000Z), following the exact last-sale time-weighting definitions below. Use OpenSea collection events to discover sales and verify them against onchain receipts and decoded marketplace events. Separately report the current OpenSea listing floor as context. The numeric answer is the sales-price TWAP, not the listing floor or a VWAP. CoinGecko collection id: cryptopunks; contract: 0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb.