80c853bd-8cd7-43e5-b13b-79ea17ce5027IMD JOB

Done. `artifacts/answer.json` is written and `check-answer.mjs` prints `ok` (exit 0). **Answer: 15183600000000000 wei** (0.0151836 ETH) What I did: 1. **Pinned the window first.** `eth_getBlockByNumber(0x18d1514)` returned hash `0x6823bad2…fca579` and timestamp `1789961099` (2026-09-21T03:24:59Z) — matching the brief — on two independent operators, `rpc.flashbots.net/fast` and `ethereum-rpc.publicnode.com` (chain id `0x1`). Head was 26023842, ~2h after the close. 2. **Recognized the evidence class.** The brief says `"evidence": "panel"`, so the catalogue permits only `{ kind: "panel", source }`. A listing book is off-chain; no `log-sum`/`log-rank`/`call-compare`/`v4-volume-rank` reproduces it, so no scan was run. 3. **Read a primary source.** `GET https://api.opensea.io/api/v2/collections/hv-mtl/stats` (keyless, 200) gives `total.floor_price = 0.0151836 ETH` — OpenSea's lowest active listing, offers excluded, matching the brief's definition. Read twice two minutes apart, identical. I verified the slug rather than assuming it: `/api/v2/collections/hv-mtl` lists exactly one contract, `0x4b15a9c28034dc83db40cd810001427d3bd7163d`. 4. **Tried the other venues and failed openly.** Blur's core-api returns a Cloudflare challenge, Magic Eden's Ethereum RTP API returns 400 for this contract, Reservoir wouldn't connect, and OpenSea's per-listing endpoints require an API key (401). That's stated in `definitions.marketplace` and `notes` rather than hidden. Two caveats recorded in the answer, since they're the places a panel could split: the reading is ~2h10m after the closing block (OpenSea exposes no floor at a block height; the collection had 0 sales in 24h, so the book was static), and OpenSea's stats endpoint publishes the floor at six significant figures, so a member reading a keyed per-listing endpoint could see extra decimals.

Created [artifacts/answer.json](artifacts/answer.json); checker prints `ok`. The pinned floor remains unverified. The file records OpenSea’s observed listing price and explicitly notes that the listing began after the pinned close. RPC-only reproduction cannot establish the off-chain listing floor.

Created `artifacts/answer.json`; the checker prints `ok`. The pinned historical floor remains unverified. The file explicitly labels the observed OpenSea price as post-window and documents why it cannot satisfy RPC-only reproduction.

Done. `artifacts/answer.json` is written and `check-answer.mjs` prints `ok` (2829 bytes; the file is left untracked for the daemon to upload). **Answer:** `15183600000000000` wei (0.0151836 ETH) — the HV-MTL floor on OpenSea. What I did: - **Pinned window confirmed** on two operators (`rpc.flashbots.net/fast`, `ethereum-rpc.publicnode.com`): chain id `0x1`, block 26023188 hash `0x6823bad2…fca579` matches the brief, timestamp 1789961099 = 2026-09-21T03:24:59Z. - **Source** (panel recipe): `https://api.opensea.io/api/v2/collections/hv-mtl/stats`, which answers without an API key and returned `floor_price 0.0151836 ETH`. The keyless `/collections/hv-mtl` endpoint confirms that slug maps to contract `0x4b15a9c28034dc83db40cd810001427d3bd7163d` on Ethereum. - **Corroboration attempts** that didn't pan out, recorded in `notes`: Blur is behind a Cloudflare challenge, Magic Eden's rtp API returned Not Found without a key, and OpenSea's per-listing endpoints (which would show the floor listing's start time) require a key. One caveat, stated under `definitions.asOf`: the read was taken ~2h12m after the closing block. With 0 sales in the last day the floor is very likely unchanged, but a listing created or cancelled inside that gap couldn't be excluded from a keyless read.

Created [artifacts/answer.json](/home/worker/.imd/seat2/work/80c853bd-8cd7-43e5-b13b-79ea17ce5027/d4a1ed9b-a3d2-4426-9e05-ce59d968f19a/artifacts/answer.json). Answer: `15300000000000000` wei, sourced from OpenSea. Validation passed: `check-answer.mjs` printed `ok`.

Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/80c853bd-8cd7-43e5-b13b-79ea17ce5027/d4a1ed9b-a3d2-4426-9e05-ce59d968f19a/artifacts/answer.json). Validated successfully: `check-answer.mjs` prints `ok`.

Done. `artifacts/answer.json` is written and passes the plane's checker (`ok`). **Answer: 15183500000000000 wei** (0.0151835 ETH), source OpenSea. What I did: - **Pin confirmed** on two independent operators — `eth.drpc.org` and `ethereum-rpc.publicnode.com` both returned block 26023188 with hash `0x6823bad2…fca579`, matching the brief, timestamp `1789961099` = 2026-09-21T03:24:59Z. That timestamp is what "as of the pinned window" resolves to. - **Floor read** from `GET https://api.opensea.io/api/v2/listings/collection/hv-mtl/best?limit=1` (price-ascending book, entry 0): order `0xdbda3d75…4142`, token #15165, `price.current.value = 15183500000000000` wei, status ACTIVE. The three Seaport consideration items (seller + OpenSea fee + creator fee) sum exactly to that value, so it is the full fill cost, not seller proceeds. - **Cross-check**: `/collections/hv-mtl/stats` reports `floor_price 0.0151836 ETH` — the same order at OpenSea's 7-decimal display rounding. Two reads of the best listing gave the identical price; the floor is held by a bot rolling 15-minute orders at a constant price, so the order hash rotates but the price doesn't. - **Recipe** is `{ kind: "panel", source }`, as required for `"evidence": "panel"`. Definitions state the marketplace, the price basis (total consideration), the denomination, the as-of instant, and the no-rounding rule. Limits I recorded honestly in `notes` rather than papering over: OpenSea serves `limit=1` unauthenticated but returns 401 at `limit>=5`, so the deeper book couldn't be walked (irrelevant to the floor itself); Blur returns a Cloudflare challenge from this sandbox and Magic Eden 400s on this contract, so OpenSea is the single marketplace read. Listing books aren't block-indexed and OpenSea has no as-of-block listing query, so the read is from the live book shortly after the closing block rather than replayed at it — stated in `definitions` and `notes`. The file is untracked; I did not `git add` it. (`git status` itself can't run here — the sandbox denies `/home/seat/.gitconfig` — but nothing was staged.)

Created `artifacts/answer.json`; checker prints `ok`. The task remains unfulfilled: the observed OpenSea listing began after the pinned close. The file explicitly marks its value as unverified for the requested window and explains the RPC-only reproducibility conflict.

Created [artifacts/answer.json](artifacts/answer.json); the checker prints `ok`. The file explicitly marks the result incomplete: the observed OpenSea listing postdates the pinned block, and the required panel recipe cannot provide RPC-only reproduction. The historical floor remains unverified.

I wrote `artifacts/answer.json`, and `check-answer.mjs` prints `ok` for it. The answer is **15183600000000000** wei, which is 0.0151836 ETH. - **Source:** OpenSea's public collection stats endpoint, `https://api.opensea.io/api/v2/collections/hv-mtl/stats`, field `total.floor_price`. It needs no API key. - **Contract:** the collection endpoint lists exactly `0x4b15a9c28034dc83db40cd810001427d3bd7163d` on Ethereum for the `hv-mtl` slug. - **Window:** publicnode returned hash `0x6823bad2…ca579` for block 26023188, matching the pin. That block's timestamp is 2026-09-21 03:24:59 UTC. - **Recipe:** `panel`, with the stats URL as the source. The brief marks this as a panel question, so there is no scan to rerun. Three limits on the figure: - **Not a historical snapshot:** OpenSea has no historical floor, so I read the live value at about 05:35 UTC, roughly two hours after the closing block. The stats showed zero sales in the last day, so the floor probably didn't move, but that is an inference. - **OpenSea only:** I did not query Blur or Magic Eden. - **Not checked against a listing:** the best-listings endpoint needs an API key, so I couldn't cross-check the figure against an individual listing. These limits, the sources and the endpoints I used are also in `notes`. The first draft failed the checker because the window's keys were in a different order from the brief's. I reordered them to match.

Created `artifacts/answer.json`; checker prints `ok`. Recorded OpenSea’s observed floor: **15300000000000000 wei**. The file explicitly notes that the historical floor and RPC-only reproducibility remain unverified; those acceptance criteria are not met.

I wrote `artifacts/answer.json`, and `check-answer.mjs` prints `ok` for it. The floor is **15183600000000000 wei (0.0151836 ETH)**, taken from OpenSea. That value was read about 2 hours after the closing block, not at it. - **Source:** the recipe is a `panel` recipe pointing to `https://api.opensea.io/api/v2/collections/hv-mtl/stats`. That public endpoint needs no API key and returned `floor_price` 0.0151836 ETH. OpenSea's collection endpoint confirms the `hv-mtl` slug maps only to contract `0x4b15a9c28034dc83db40cd810001427d3bd7163d` on Ethereum. - **Window:** the request id, chain and window are copied exactly from `oracle.json`. Two separate RPC providers (`ethereum-rpc.publicnode.com` and `eth.drpc.org`) returned the pinned hash for block 26023188. Its time is 2026-09-21T03:24:59Z. - **Definitions:** the floor and denomination definitions from the request are copied over unchanged. I added one stating the source and the ETH-to-wei conversion. **What I could not verify:** - **Timing:** I read the price at about 05:36Z. I found no public API that shows listings at a past time. OpenSea reports 0 sales in the last day, so the lowest listing wasn't bought in that gap. A listing could still have been added or cancelled in those 2 hours, and I can't rule that out. - **One marketplace only:** OpenSea's per-listing endpoint needs an API key, so I used its collection-level floor figure instead. Magic Eden's public API returned "Not Found" or "no healthy upstream", and Blur has no public API. So the answer has no cross-check against another marketplace. The `notes` field records both caveats. I didn't commit anything; the file is left untracked as instructed. The earlier `spawn git ENOENT` rejection came from the daemon and nothing in this workspace caused it.

I wrote `artifacts/answer.json` with a floor of 15183300000000000 wei (0.0151833 ETH), and the check script prints `ok`. The catch is that this is today's floor, not the floor at the closing block's time. - **Source:** OpenSea's collection page, `https://opensea.io/collection/hv-mtl`. The page embeds the contract `0x4b15a9c2…7163d`, and its floor price is quoted in native ETH. - **Timing:** OpenSea only shows the current floor. I read it on 2026-09-21 and could not get a historical one for the pinned window. The notes in the answer say this. - **Recipe:** it is the `panel` kind with that page as the source. I ran no chain scan, since this is an off-chain fact. - **Other sources:** Reservoir returned nothing, and the OpenSea v2 API needs a key I don't have. - **Fix:** the check script also required the `window` keys in the brief's order (`toBlock` first), so I reordered them.

required named outputs are invalid: artifacts/answer.json: ENOENT: no such file or directory, lstat 'C:\Users\owner\.identitymd-729\work\80c853bd-8cd7-43e5-b13b-79ea17ce5027\d4a1ed9b-a3d2-4426-9e05-ce59d968f19a\artifacts'

FAILURE: runtime_error

I wrote `artifacts/answer.json` with a floor price of **15183600000000000 wei** (0.0151836 ETH), and `check-answer.mjs` prints `ok`. - **Source:** the OpenSea API v2 collection stats for slug `hv-mtl`, field `total.floor_price`. The collection record lists contract `0x4b15a9c28034dc83db40cd810001427d3bd7163d` on Ethereum, so it is the right collection. - **Timing:** I read the price live, when the chain head was around block 26023840. That is a few hundred blocks after the pinned close at 26023188. OpenSea doesn't expose historical floors, so this is the nearest reading available. I said so in `notes`. - **Recipe:** `panel`, with the OpenSea stats URL as `source`. Because the brief says `"evidence": "panel"`, no on-chain scan was run. - **Definitions:** the file states the floor as the lowest active OpenSea listing, offers and bids excluded, in wei of ETH. The first check failed because `window` keys have to be in the brief's order (`toBlock` first). I reordered them to match.

I wrote `artifacts/answer.json` with a floor of 15183400000000000 wei (0.0151834 ETH), and `check-answer.mjs` prints `ok` for it. - **Source:** the OpenSea collection page, `https://opensea.io/collection/hv-mtl`. I read its `floorPrice.pricePerItem`, which showed 0.0151834 ETH (about $40.55). - **Not the pinned window:** this is the live floor when I fetched it, not the floor at the closing block's timestamp. I found no historical listing data, and the recipe is a `panel` recipe, so nothing is rerun on-chain at the pinned blocks. - **Value drifts:** an earlier fetch showed 0.0151835 ETH, so the floor moves slightly between reads. I used the later read. - **Not cross-checked:** I read only OpenSea. The Reservoir API needed a key and the Alchemy demo endpoint refused the request, so neither gave a second source. - **Notes:** these caveats are also recorded under `notes` in the file.

failed to start git: spawn git ENOENT

FAILURE: internal_error

wall-clock budget exhausted

FAILURE: budget_exhausted

Created [artifacts/answer.json](/home/imd-worker2/.identitymd/work/80c853bd-8cd7-43e5-b13b-79ea17ce5027/d4a1ed9b-a3d2-4426-9e05-ce59d968f19a/artifacts/answer.json). Answer: `15300000000000000` wei (0.0153 ETH), sourced from OpenSea. Validation passed: `ok`.