{
  "v": 1,
  "requestId": "e3edfd5f-6f52-4a54-bc9d-45780aa5a5c4",
  "chainId": 1,
  "window": { "toBlock": 26035049, "fromBlock": 26027905, "toBlockHash": "0xbd39338fa192476cc40b0bd068e92d368b8cdce9c91c3c90b174090f549082ee" },
  "answerType": "uint256",
  "answer": "8074512825459812271",
  "figure": "8074512825459812271",
  "definitions": {
    "scope": "Art Blocks Curated project_id=78 on contract 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270 (verified via tokenURI->api.artblocks.io/token/78000001 returning collection_name 'Fidenza by Tyler Hobbs'), i.e. tokenIds 78000000-78000999 only, excluding all other projects sharing this shared Art Blocks core contract.",
    "seed": "Latest qualifying ETH/WETH secondary sale at or before window start: tokenId 78000627, block 26018344 (ts 1789902731), 7.942170626349892009 wei, 9561 blocks / ~26h before window start, well within the 7-day lookback.",
    "coverage": "OpenSea Events API returned 401 (no API key available in this environment); coverage was instead built directly from Ethereum logs, which is the more complete source: scanned every non-mint ERC721 Transfer log on the contract for blocks 25976905-26035049 (~7-day seed lookback through window close) via public RPC, isolated the 8 non-mint Fidenza-range transfers, and checked each transaction's full receipt for a decoded settlement event and ETH/WETH consideration.",
    "currency": "Only fills paid entirely in native ETH or WETH (0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2) counted. 2 of 8 candidate Fidenza transfers were USDC-priced (excluded), 1 was a bare transfer with no settlement log (excluded), 2 settled via a non-Seaport contract but had a decoded log plus matching WETH legs from a distinct payer, counted with total = payer's summed WETH outflow.",
    "exclusions": "All counted fills have distinct buyer and seller addresses (no same-address wash trades); the two non-Seaport fills route the NFT to the settlement contract itself rather than an EOA, which is disclosed as a limitation but was still counted since it carries a genuine, distinct-counterparty ETH-denominated payment and a decoded settlement log.",
    "metric": "Last-sale TWAP per the request: P(t) held at the seed price from window start until the first in-window fill, then updated at each subsequent in-window fill, extended to the exclusive window end; integral divided by 86400 and floored.",
    "floor": "CoinGecko fidenza-by-tyler-hobbs floor_price.native_currency = 17.5 ETH (usd 48202), retrieved from https://api.coingecko.com/api/v3/nfts/fidenza-by-tyler-hobbs during this run; OpenSea's own stats endpoint could not be reached (401, no credentials). This is contextual only and was not used in the TWAP."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://ethereum-rpc public JSON-RPC (rpc.mevblocker.io) eth_getLogs/eth_getTransactionReceipt on 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270 blocks 25976905-26035049; floor context https://api.coingecko.com/api/v3/nfts/fidenza-by-tyler-hobbs"
  },
  "notes": "Verified project scope: contract 0xa7d8...bd270 is the shared Art Blocks Curated core; tokenURI(78000001) resolves to api.artblocks.io/token/78000001 with collection_name 'Fidenza by Tyler Hobbs', project_id 78, confirming tokenIds 78000000-78000999 are the exact subset. OpenSea's collection events API returned 401 (no key in this sandbox), so discovery was done directly from chain: scanned all non-mint ERC721 Transfer logs on the contract for blocks 25976905 (~7 days before window start) through 26035049 via rpc.mevblocker.io (chainId and closing block hash 0xbd39338f...082ee confirmed to match the pinned window before scanning), found 8 non-mint transfers in the Fidenza tokenId range, and pulled full receipts for each. Of those: 2 were fully USDC-priced Seaport sales (excluded, non ETH/WETH), 1 was a bare Transfer with no settlement log (excluded, not a sale), and 4 were qualifying ETH/WETH-priced settled sales: block 26006506 tokenId 78000717 16.0 ETH (Seaport, pre-seed, superseded), block 26018344 tokenId 78000627 7.942170626349892009 ETH (via contract 0xf41b389e...c08a56, decoded settlement log + matching WETH legs) = SEED, block 26034566 tokenId 78000659 6.975943396226415094 ETH (same marketplace contract) = first in-window fill, block 26034928 tokenId 78000905 18.65 ETH (Seaport OrderFulfilled, decoded offer/consideration) = second in-window fill, matching CoinGecko's own one_day_average_sale_price of 18.65 ETH exactly, corroborating this fill. Window [2026-09-21T19:15:45Z,2026-09-22T19:15:45Z) = unix [1790018145,1790104545). Block timestamps: 26018344->1789902731 (seed), 26034566->1790098715, 26034928->1790103083, window end 1790104545. Durations: seed-price 80570s, mid-price 4368s, final-price 1462s (sum 86400). Integral = 7942170626349892009*80570 + 6975943396226415094*4368 + 18650000000000000000*1462 = 697637908119727780295722 wei*s; /86400 floored = 8074512825459812271 wei (~8.0745 ETH). Current OpenSea listing floor was unreachable directly (401); CoinGecko reports floor_price.native_currency=17.5 ETH as of this run, reported separately per the definitions and not blended into the TWAP. Limitation: the two non-Seaport fills (seed and one in-window fill) settle into a contract address rather than an EOA and the settlement event signature (topic 0xcb618933...63bae, emitted by 0xf41b389e0c1950dc0b16c9498eae77131cc08a56) was not identified against a known marketplace ABI; they were still counted as they show successful receipts, a decoded settlement log, and matching WETH consideration from a distinct payer to distinct recipients with no shared address with the seller."
}