{
  "v": 1,
  "requestId": "9a17a45d-e144-4b39-85e8-77c146284f97",
  "chainId": 1,
  "window": { "toBlock": 26035049, "fromBlock": 26027905, "toBlockHash": "0xbd39338fa192476cc40b0bd068e92d368b8cdce9c91c3c90b174090f549082ee" },
  "answerType": "uint256",
  "answer": "1",
  "figure": "1",
  "definitions": {
    "status": "UNAVAILABLE: no qualifying seed within 7d and no in-window fill. answer=1 wei is a non-fabricated schema placeholder, not a price.",
    "seed": "Latest qualifying fill at or before start, searched back 7 days (block 25977724, ts 1789413345). None found; per brief, TWAP is unavailable, no backfill beyond 7d.",
    "coverage": "Scanned Transfer(address,address,uint256) on 0x0c58ef43ff3032005e472cb5709f8908acb00205 for blocks 25977724..26035049 (7d pre-window + full window): 0 events, cross-checked on 5 independent RPC operators (flashbots, flashbots/fast, tenderly public x2, blockmachine) with no truncation/refusal after chunked retries.",
    "historical": "Widened scan to last ~600000 blocks (~100d) before toBlock: exactly 1 Transfer total, at block 25429254 (ts 1783289099, 2026-07-05), ~78 days before the window start and far outside the 7-day seed rule; not used as seed per brief.",
    "market": "0x0c58ef43ff3032005e472cb5709f8908acb00205 is verified via CoinGecko id 6529-gradient (total_supply 101) and OpenSea slug 6529-gradient (opensea.io/collection/6529-gradient), matching contract exactly; no other Art Blocks/editions/wrappers included.",
    "unit": "ERC721 collection, quantity=1 per sale where applicable; not applicable here (no fills found).",
    "currency": "ETH/WETH 1:1, 18 decimals; not applicable here (no fills found).",
    "floor": "Context only, not used in TWAP: CoinGecko 6529-gradient floor_price.native_currency = 18.0 ETH (usd 49558), retrieved 2026-09-22 via api.coingecko.com/api/v3/nfts/6529-gradient; volume_24h.native_currency=0 and one_day_sales=null corroborate zero sales in the trailing 24h. OpenSea v2 collection stats (api.opensea.io/api/v2/collections/6529-gradient/stats) returned 401 (no API key available in this environment), so no OpenSea-sourced floor could be independently fetched.",
    "discovery": "OpenSea Events API (api.opensea.io/api/v2/events/collection/6529-gradient?event_type=sale) returned 401 Missing API Key for all attempts; no credentials were available. Discovery therefore relied on onchain Transfer-log scanning per the coverage note above, which is exhaustive over the required window and is public RPC data reproducible without any API key."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://api.coingecko.com/api/v3/nfts/6529-gradient"
  },
  "notes": "Question requires a 24h last-sale-price TWAP for 6529 Gradient (0x0c58ef43ff3032005e472cb5709f8908acb00205), blocks 26027905..26035049 (verified closing hash 0xbd39338fa192476cc40b0bd068e92d368b8cdce9c91c3c90b174090f549082ee on ethereum-rpc.publicnode.com). OpenSea v2 Events/Stats endpoints returned 401 (no API key in this environment), so discovery fell back to exhaustive onchain scanning, which is stronger evidence for a small 101-supply collection anyway. Scanned Transfer(address,address,uint256) at the contract for the full 7-day seed lookback plus the pinned window (blocks 25977724..26035049): zero events, confirmed on 5 independent RPC operators (rpc.flashbots.net, rpc.flashbots.net/fast, gateway.tenderly.co/public/mainnet, mainnet.gateway.tenderly.co, rpc-eth.blockmachine.io) using retried/chunked eth_getLogs (800-2000 block windows) with no truncation or refusal. Widened to ~100 days back: exactly one Transfer total, at block 25429254 (2026-07-05), which is outside the 7-day seed window and per the brief's seed rule cannot be used (\"never backfill from a future sale\"/no backfill beyond 7 days). Per definitions.seed and definitions.missing in the brief: with no verifiable seed within 7 days AND no qualifying in-window fill, the full-window TWAP is UNAVAILABLE, and zero is explicitly disallowed as a missing-data sentinel. Since answerType=uint256 requires a decimal string, I set answer=\"1\" (1 wei) strictly as a non-fabricated schema placeholder distinguishable from any real ETH-denominated sale price (which would be >=10^15 wei), not as a computed price; the true status is UNAVAILABLE, stated here and in definitions.status. Context floor (not used in TWAP): CoinGecko 6529-gradient floor_price.native_currency=18.0 ETH, retrieved 2026-09-22, with volume_24h=0 and one_day_sales=null corroborating no trades in the trailing 24h, consistent with the onchain scan. No wash-trading/bundle/ERC1155 exclusions were applicable since no fills were found at all."
}