Compute the past-24-hour CryptoPunks time-weighted last-sale price on Ethereum mainnet, in integer wei, using only onchain sale events, receipts and block timestamps. Independently scan the official CryptoPunksMarket PunkBought events AND OpenSea Seaport OrderFulfilled events for canonical CryptoPunks or verified canonical wrapped Punks. Follow the pinned scope, deduplication, payment, seed and TWAP definitions exactly. This is a sale-price TWAP, not a listing floor, simple average, or VWAP. Return a panel recipe citing an actual public RPC evidence URL and concise reproducible evidence in notes. Do not substitute marketplace stats, fabricate inaccessible events, or return zero for missing data.