{
  "v": 1,
  "requestId": "c514d371-7abe-4697-aaa1-f176e8f3b087",
  "chainId": 1,
  "window": { "toBlock": 26035049, "fromBlock": 26027905, "toBlockHash": "0xbd39338fa192476cc40b0bd068e92d368b8cdce9c91c3c90b174090f549082ee" },
  "answerType": "uint256",
  "answer": "8000000000000000000",
  "figure": "8000000000000000000",
  "definitions": {
    "staleTwap": "No qualifying fill in the 24h interval and no seed fill within the 7-day lookback, so the requester's definitions mark the TWAP unavailable/stale. The reported uint256 is the stale carry-forward: the last qualifying ETH-denominated secondary sale price applied over the whole window, i.e. floor(8e18 * 86400 / 86400).",
    "qualifyingCurrency": "Only native ETH or WETH (0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2). A 2026-09-10 transfer paid 6.5e18 Blur-pool ETH (0x0000000000a39bb272e79075ade125fd351887ac) and was excluded as a non-qualifying currency.",
    "salesDiscovery": "OpenSea events API attempted as pinned (401 Missing API Key). Discovery completed onchain: ERC721 Transfer logs on the contract plus receipt-level settlement verification (Seaport OrderFulfilled, tx value, WETH legs)."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://api.opensea.io/api/v2/events/collection/ikb-cachet-de-garantie?event_type=sale&after=1790018144&before=1790104545&limit=200"
  },
  "notes": "Scope verified: CoinGecko id ikb-cachet-de-garantie resolves to contract 0x80f1ed6a1ac694317dc5719db099a440627d1ea7 (name 'IKB Cachet de Garantie', symbol wIKB, ERC-721, totalSupply 82) — 'Digital Zones of Immaterial Pictorial Sensibility, wrapped' by Mitchell F. Chan. OpenSea slug: ikb-cachet-de-garantie.\n\nWindow: [2026-09-21T19:15:45Z, 2026-09-22T19:15:45Z) = blocks 26027905..26035049. Verified: block 26027905 ts 1790018147 (first block >= start; 26027904 is 1790018135 < start), block 26035049 ts 1790104535 and hash matches the pin (26035050 is 1790104547 >= end). The pinned range is exactly the interval.\n\nFills: eth_getLogs for Transfer on the contract over 26027905-26035049 returned 0 events (private archive node AND ethereum-rpc.publicnode.com; an unfiltered all-topics scan also returned 0). Zero transfers of any kind => zero qualifying in-window fills.\n\nSeed: zero Transfer events in the 7-day lookback [2026-09-14T19:15:45Z, start] (scanned blocks 25977500-26027905; horizon start is block ~25978220, covered). Latest transfer of any kind is 2026-09-10T03:38:59Z block 25944352 tx 0xd778ce4cba447c320366fc1a80b80f48444531536dd8b3776a9fd80f8e09c1f3 (token 99), settled in 6.5e18 Blur-pool ETH at 0x0000000000a39bb272e79075ade125fd351887ac — non-qualifying currency per the request. So no seed within 7 days either.\n\nLast qualifying ETH/WETH sale (the stale carry-forward value): 2026-02-15T10:52:59Z, block 24461729, tx 0x7df99771820945ff8b310632a3580eca4f764c6ac0bb5158feebcfa7197bb1ff — Seaport 1.6 (0x0000000000000068f116a894984e2db1123eb395), two matched OrderFulfilled orders; token 73 moved 0x4bf3805b23c99f8e0a5797e86fd0232a04a2a629 -> 0x9584998f1b2beaad045b120df9b6535f4b9eefbd; buyer paid exactly 8.0 ETH (tx.value 8000000000000000000; ReceivedItems 7.2 + 0.8 ETH to seller). Single-token fill, successful receipt, buyer!=seller, no wash-trade signal. Other recent transfers checked and excluded: 2026-09-03 multi-collection bundle with no payment; 2026-08-05/06 and 2026-03-09 plain transfers; 2026-01-05 Blur-pool payment.\n\nComputation: in-window fills = 0, seed within 7d = none => per the pinned definitions the TWAP is unavailable/stale. The stale value reported is P(t) = 8000000000000000000 wei for all t; integral = 8000000000000000000 * 86400; TWAP = floor(integral/86400) = 8000000000000000000.\n\nFloor (context only, not in the answer): OpenSea stats API returned 401 (no API key) at 2026-09-22T20:10Z — stated limitation. CoinGecko (api.coingecko.com/api/v3/nfts/ikb-cachet-de-garantie, retrieved 2026-09-22T20:10Z): floor_price 8.38 ETH (usd 23072), volume_24h 0.0, one_day_sales null — corroborates zero sales and is near the stale 8.0 ETH last sale.\n\nEndpoints used: private archive via imd-rpc, https://ethereum-rpc.publicnode.com (window log scan, pin check), https://eth.drpc.org and https://0xrpc.io/eth (archive receipts), https://eth.blockscout.com/api/v2/tokens/0x80f1ed6a1ac694317dc5719db099a440627d1ea7/transfers (transfer history discovery). Limitation: OpenSea API inaccessible without a key; discovery instead covered complete onchain logs, which is the benchmark per the request's markets definition."
}