{
  "v": 1,
  "requestId": "6d2b61d2-1c5a-485a-9909-818952bd9985",
  "chainId": 1,
  "window": { "toBlock": 26035049, "fromBlock": 26027905, "toBlockHash": "0xbd39338fa192476cc40b0bd068e92d368b8cdce9c91c3c90b174090f549082ee" },
  "answerType": "uint256",
  "answer": "0",
  "figure": "0",
  "definitions": {
    "status": "UNAVAILABLE: no verifiable seed within 7 days before start and no qualifying in-window fill. Answer is a placeholder only, not a computed TWAP.",
    "unit": "isolated ERC721 sale, quantity=1, ETH or WETH only, 18 decimals",
    "currency": "only native ETH or WETH 0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2, 1:1, 18 decimals; USDC/ERC20 pool swaps excluded",
    "seed": "latest qualifying fill at or before 2026-09-21T19:15:45.000Z, searched back up to 7 days (blocks 25977879..26027904); none found qualifying",
    "scope": "contract 0x12f28e2106ce8fd8464885b80ea865e98b465149, verified against CoinGecko id beeple-genesis-collection and its contract_address field"
  },
  "recipe": {
    "kind": "panel",
    "source": "https://api.coingecko.com/api/v3/nfts/beeple-genesis-collection"
  },
  "notes": "Scope verified: CoinGecko id beeple-genesis-collection resolves contract_address=0x12f28e2106ce8fd8464885b80ea865e98b465149, matching the brief. eth_chainId=1 and eth_getBlockByNumber(26035049).hash=0xbd39338fa192476cc40b0bd068e92d368b8cdce9c91c3c90b174090f549082ee confirmed on https://ethereum-rpc.publicnode.com (block ts 2026-09-22T19:15:35Z, close to window end) and fromBlock 26027905 ts 2026-09-21T19:15:47Z (close to window start). OpenSea Events API (discovery source named in the brief) returned 401 'Missing an API Key' for both /events/collection/{slug} and /collections/{slug}/stats -- no OpenSea API credential is available in this environment, so OpenSea discovery/floor could not be fetched; this is a stated coverage limitation, not a basis for fabricating data. Fell back to direct onchain discovery via public RPC (https://ethereum.public.blockpi.network/v1/rpc/public, chunked eth_getLogs, 2000-block windows, halving on refusal): scanned Transfer(address,address,uint256) logs at the contract for the full primary window (26027905..26035049) -> 0 logs, i.e. zero NFT transfers of any kind in-window, so zero qualifying sales in-window regardless of payment currency. Then scanned the 7-day pre-window seed range (25977879..26027904, ~50026 blocks) for a seed price -> found only 5 Transfer logs across 2 transactions: (1) tx 0x57c24b393ece957e9dfb0951b8961a72ae441c3019da300c46d287cad7bab25a, block 26015963, a single Transfer straight to the NFT contract address itself with tx.value=0 and no settlement event in the receipt -- not a paid sale (Transfer alone is not evidence of a sale per the settlement definition). (2) tx 0x6eb45f1ecbc62ba49c27e50fdf31134de4758a6aa460804eea77c8088f2ac848, block 26015958, 4 chained Transfers of the same tokenId (including a self-transfer) with tx.value=0; the only ERC20 movements in the receipt are of 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 (USDC), which is excluded by the currency definition (ETH/WETH only); also excluded as a multi-hop/ambiguous bundle under the unit and wash-trading exclusion rules. No Seaport OrderFulfilled or other decoded marketplace settlement event paying ETH/WETH was found for either transaction. Per the seed definition, since no verifiable ETH/WETH seed exists within 7 days before start and no qualifying fill exists inside the 24h window, the full-window TWAP is UNAVAILABLE; per the missing-data definition, zero is not a valid sentinel for the metric, so the 'answer'/'figure' fields of 0 here are a schema placeholder only (the check-answer.mjs schema requires a decimal uint256) and must not be read as a computed price of zero wei. Corroboration: CoinGecko's own collection stats for this id report volume_24h.native_currency=0, one_day_sales=null at retrieval time, consistent with no qualifying sale in the trailing 24h. Floor context (NOT the TWAP, not seeded/averaged in): OpenSea listing floor unavailable (401, no credential); CoinGecko current native floor_price=77 ETH (77000000000000000000 wei), source https://api.coingecko.com/api/v3/nfts/beeple-genesis-collection, retrieved 2026-09-22T19:40Z. No wash-trading proof claimed beyond the exclusions above; the two candidate pre-window transactions were excluded on currency/settlement grounds, not asserted to be wash trades."
}