28276c79-4999-4533-9379-71d53b5ce5b8IMD JOB

Created and validated `artifacts/answer.json` with observed floor **34898100000000000 wei**. The file documents the limitation: exact-window historical accuracy and RPC-only reproduction could not be established. The pinned request specifies off-chain panel evidence, conflicting with that acceptance criterion.

I wrote `artifacts/answer.json` with a floor price of **34898100000000000 wei** (0.0348981 ETH). It rests on a single source (CoinGecko), taken about 58 minutes after the closing block. - **Source:** the CoinGecko NFT API for the Captainz contract, using the `floor_price.native_currency` field. I read it live at 2026-09-20 22:38 UTC, with a response age of 6 seconds. The closing block's timestamp is 21:40 UTC. Multiplying 0.0348981 by 10^18 gives the answer. - **Precision:** CoinGecko publishes 7 decimals of ETH, so the value is only exact to 10^11 wei. The trailing digits are zeros by construction. - **Not cross-checked:** I couldn't read OpenSea or Blur directly. OpenSea's API needs a key and its collection page has no floor in the HTML, Blur is behind a bot challenge, and the other aggregators refused or returned nothing. A cheaper listing on Blur would not show in this figure. - **Timing:** it is a live reading, not a historical one. CoinGecko reports the floor down about 5% over 24 hours, so the price at the closing block may have been slightly different. - **Chain check:** the pinned closing block hash matched at height 26021474 on three RPC endpoints (`ethereum-rpc.publicnode.com`, `eth.drpc.org`, `rpc.flashbots.net/fast`). - **Recipe:** `panel`, with the CoinGecko URL as its `source`. The `notes` field in the file records all of the above.

I wrote `artifacts/answer.json` with a floor of **34898140000000000 wei** (0.03489814 ETH). This rests on a single source, CoinGecko, and I couldn't cross-check it against OpenSea or Blur. - **Source:** CoinGecko's NFT API, field `floor_price.native_currency`. It reads 0.03489814 ETH (about $91.76). CoinGecko is an aggregator, so I can't say which marketplace the lowest listing came from. - **Timing:** I read it at about 22:33 UTC on 2026-09-20. The closing block 26021474 is timestamped 21:40:11 UTC, so the reading is about 53 minutes after it, not at it. - **Sources I couldn't read:** OpenSea's API needs a key, Blur sits behind a bot challenge, Magic Eden returned 503, and Reservoir was unreachable. NFTPriceFloor and Alchemy also need keys. - **Chain check:** block 26021474 on publicnode has the pinned hash `0x57ff11be…4397`. The floor itself is off-chain, so nothing was rerun on-chain. - **Rounding:** CoinGecko reports the floor to 8 decimals of ETH, so the wei value is that figure times 10^18. Panel members who read OpenSea or Blur directly may land on a slightly different number. - **Recipe and file:** the recipe is `panel`, with the CoinGecko URL as its source. The definitions and caveats above are also written under `definitions` and `notes`. The JSON parses, and `git status` shows nothing tracked.

Created and validated [artifacts/answer.json](artifacts/answer.json) with observed floor `34898140000000000` wei. The artifact documents the limitation: this off-chain observation cannot satisfy exact-window, RPC-only reproduction.

Created and validated [artifacts/answer.json](/home/imd-worker/.identitymd/work/28276c79-4999-4533-9379-71d53b5ce5b8/26e64420-51c7-425b-b6c9-afc29bfe2b20/artifacts/answer.json). Floor price: `34898140000000000` wei.

Created and validated `artifacts/answer.json` with the observed floor: **34,898,140,000,000,000 wei**. The file documents the limitation: this aggregator reading occurred after the pinned window and cannot satisfy historical, RPC-only reproduction.

Created `artifacts/answer.json` with the observed value `34898440000000000` wei and validated its JSON and conversion. The file explicitly documents that the observation cannot establish the exact-window floor or satisfy RPC-only reproduction.