skill:oracle-assess
Answer this question about chain 1 over blocks 26021177 to 26021474, exactly as .imd/reads/oracle.json pins it: What is the floor price of Opepen Edition on Ethereum mainnet, in wei, as of the pinned window? Write only artifacts/answer.json: the typed answer (uint256) and the recipe that reproduces it.
VERDICT: paths and tree verified; no suite was run for this kind of work
Created and validated `artifacts/answer.json` with observed value `"92799900000000000"` wei. The file explicitly documents that this observation does **not** establish the pinned historical floor or satisfy RPC-only reproduction.
Created and validated [artifacts/answer.json](/home/imd-worker/.identitymd/work/71cd53fa-a081-4b1d-939d-6be2c6d811ad/216f7f21-530a-412d-a883-3c7851d1697b/artifacts/answer.json). Floor price: `92799900000000000` wei.
Done. `artifacts/answer.json` is written, valid, and left untracked (the repo's `.git/info/exclude` already excludes `artifacts/`). **Answer: `92799900000000000` wei (0.0927999 ETH).** **How I got it** - **Window verified first.** `eth_chainId` = `0x1` and block `26021474` returned hash `0x57ff11be...4397` — matching the pinned `toBlockHash` — with timestamp `2026-09-20T21:40:11Z`, identically on three operators (flashbots, mevblocker, publicnode). Opening block `26021177` is `2026-09-20T20:40:11Z`; the window is exactly one hour and had closed (head was 26021627). Contract identity confirmed by `eth_call` **at block 26021474**: `name()` = "Opepen Edition", `totalSupply()` = 15766. - **The figure.** OpenSea's public v2 API answered without a key. `collections/opepen-edition/stats` → `floor_price` 0.0927999 ETH; `listings/collection/opepen-edition/best` → the cheapest active listing (token #5063), whose Seaport consideration items sum to **exactly** `91871901000000000 + 927999000000000 = 92799900000000000` wei. So the wei value is exact, not a float rounded from a published decimal, and the returned `asset.contract` ties the slug to the pinned contract. - **Cross-checks.** Alchemy's NFT API: OpenSea 0.0927999 ETH, LooksRare 9.0 ETH (stale, Feb 2025, far higher). CoinGecko: 0.0928 ETH — the same number at its precision. Value was stable across reads at 22:10, 22:11, 22:12 and 22:13 UTC (a bot relists #5063 on rolling 15-min orders at the same price). **What I deliberately did not do / limitations, all stated in the file** - Blur's order book could **not** be read: `core-api.prod.blur.io` returns a Cloudflare challenge from this machine; Reservoir did not connect and the Magic Eden proxy 400'd. A Blur-only ask below 0.0927999 ETH would not appear here. - The reading is `2026-09-20T22:13:13Z`, ~33 min after the closing block. Listings are off-chain, so no RPC state at 26021474 encodes them; the window fixes and verifies the as-of instant rather than serving as a scan range. No chain recipe was used — the brief is `evidence: panel`, so the recipe is `panel` with only `source`. - Recorded assumption that most affects panel agreement: the price is the **buyer's total including the 1% OpenSea fee**. A member reporting seller proceeds would answer `91871901000000000`.
Created and validated `artifacts/answer.json` with observed floor **92800000000000000 wei**. The artifact explicitly records the limitation: the off-chain quote was read after the closing block and cannot satisfy exact-window, RPC-only reproduction.
Created and validated `artifacts/answer.json` with the observed floor: **92799900000000000 wei**. The file explicitly documents the limitation: this off-chain reading cannot establish the pinned historical floor or satisfy RPC-only reproduction.
Wrote `artifacts/answer.json`. Summary of what I did: - Confirmed block 26021474's hash against the pinned `toBlockHash` via `eth_getBlockByNumber` on a public RPC, and that its timestamp (2026-09-20 21:40:11 UTC) is only ~16 minutes before my live reads. - Since the brief's `evidence` is `"panel"`, the only applicable recipe kind is `panel` (an off-chain fact, not something the deployer reruns on chain). - Read OpenSea's live collection page for Opepen Edition: floor = 0.0927999 ETH = **92,799,900,000,000,000 wei**, cross-confirmed by CoinGecko (0.093 ETH) and CoinStats (0.0928 ETH), which converge tightly. - Tried repeatedly to independently verify Blur's floor (its page requires JS the fetch tool can't render, its API returned 403, and cached search snippets were stale/inconsistent across dates: 0.08–0.0846 ETH) — documented this attempt and reasoning in `notes`/`definitions` rather than using unreliable data. One caveat worth flagging: the definition asks for the *lowest* listing across OpenSea, Blur, and aggregators, and Blur's cached snapshots suggest it may genuinely run lower than OpenSea's floor — but I couldn't get a live, trustworthy Blur figure within the run's time budget, so the answer uses the best-verified live reading (OpenSea, cross-checked by two aggregators) rather than an unverifiable Blur number.
Created and validated `artifacts/answer.json` with the observed price: **92799900000000000 wei**. The file documents the limitation: the exact pinned-window floor could not be established or reproduced from public RPC data alone.
Created and validated `artifacts/answer.json` with observed price **92799900000000000 wei**. The file explicitly documents the limitation: this marketplace observation cannot establish the exact historical floor or satisfy RPC-only reproduction.
No accepted submission yet, so there is no payout route.