e5949524-e99b-4ed8-af03-7ec0f2ffc5beIMD JOB

Created [artifacts/answer.json](artifacts/answer.json) with **607435000000000000 wei**. Checker prints `ok`. Includes both API attempts and decoded sale evidence. Notes explain that the offchain listing floor cannot be reproduced from public RPC alone.

Completed [artifacts/answer.json](/home/imd/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Validation passed: `ok`. Floor: `607315000000000000` wei.

Created [artifacts/answer.json](artifacts/answer.json): **607435000000000000 wei**, with API attempts and decoded sale evidence. Validator printed `ok`. The file notes that current offchain listings cannot be reproduced from public RPC alone.

This is a panel-evidence question: I need the current listing floor of the "Project AEON" NFT collection on Ethereum mainnet, attempting both CoinGecko and OpenSea APIs, plus an onchain sales cross-check. Let me set up.CoinGecko API succeeded at 2026-09-21T21:17:23Z. Contract: `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum, floor 0.607435 ETH. Now the OpenSea side — check for any available credentials and resolve the slug.Both APIs responded. OpenSea slug `project-aeon` gives floor 0.607329 ETH vs CoinGecko 0.607435 ETH. Let me verify the collection's contract on OpenSea and get the full stats output.OpenSea collection verified: contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on ethereum, safelist verified, dedicated contract (no token-id restriction needed). Floors agree within ~0.02%: OpenSea 0.607329 ETH, CoinGecko 0.607435 ETH. Per floorRule, OpenSea stats floor is preferred → **0.607329 ETH = 607329000000000000 wei**. Now let me try the OpenSea listings endpoint too, and read the scan script for the onchain sales cross-check.OpenSea listings endpoint requires an API key (401) — that's a reportable access failure; the stats endpoint worked unauthenticated. Now the onchain cross-check: scan the NFT contract's Transfer events over the pinned window.Pin confirmed; one Transfer in the window. I need its tx hash to pull the receipt — one log is safe to print.Wrong hex on my part. Retrying with correct values.Token id 350 transferred in tx `0x21ef8bd4...` at block 26024671. Fetching the receipt to decode the marketplace sale event.Seaport 1.6 `OrderFulfilled` event — a real sale, paid in WETH. Let me decode the event data to get price and fees.The decode gives a clean picture: a Seaport 1.6 `OrderFulfilled` where bidder `0x8333…004f` paid 0.59 WETH for token 350, seller received 0.59 WETH and paid a 0.0059 WETH OpenSea fee — matching both APIs' 24h volume of 0.59/1 sale. That was the only Transfer in the whole window. Let me confirm the pinned block hash on a second endpoint, then write the answer.Pinned hash confirmed on a second operator. Writing the answer file.Key order in `window` must match the brief exactly. Fixing.Done. `check-answer.mjs` prints `ok` and `artifacts/answer.json` is written (4306 bytes, untracked). **Answer: `607329000000000000` wei (0.607329 ETH)** — the current listing floor of Project AEON. Summary of evidence: - **Collection verified**: CoinGecko `project-aeon` → contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum; OpenSea collection `project-aeon` (safelist verified) binds the same single contract — no token-id filtering needed. - **CoinGecko API** (HTTP 200, 21:17:23Z): floor `0.607435` ETH. - **OpenSea stats API** (HTTP 200, ~21:17:30Z, unauthenticated): `total.floor_price = 0.607329`, symbol ETH → preferred per the brief's floorRule. Listings API returned 401 (no key provisioned) — reported in notes. - **Discrepancy**: 0.000106 ETH (~0.017%), under the 1% threshold; attributed to indexer refresh timing. - **Onchain cross-check**: pinned hash confirmed on two RPC operators. Exactly 1 `Transfer` in blocks 26021226–26028372; its receipt decodes a Seaport 1.6 `OrderFulfilled` — token 350 sold for 0.59 WETH (buyer `0x8333…004f`, 0.0059 WETH OpenSea fee), block 26024671, tx `0x21ef8bd4…`. Consistent with both APIs' 24h volume of 0.59 / 1 sale; used as corroboration only, not as the floor. Recipe: `{ "kind": "panel", "source": "https://api.opensea.io/api/v2/collections/project-aeon/stats" }`.

Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Answer: `607315000000000000` wei. The supplied validator prints `ok`.

The checker prints `ok`. The deliverable `artifacts/answer.json` is complete and left untracked for the daemon to upload. **Answer: 607324000000000000 wei (0.607324 ETH)** — the current OpenSea listing floor of Project AEON. How it was established: - **Collection identity**: CoinGecko NFT id `project-aeon` names contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum mainnet. Verified onchain via `eth_call`: `name()` = "Project AEON", `symbol()` = "AEON", `totalSupply()` = 3333. It's a dedicated ERC-721 contract, so the collection-wide floor needs no token-id filter. The OpenSea slug `project-aeon` was resolved from the contract endpoint, not assumed from the CoinGecko id. - **Both APIs attempted, both succeeded**: CoinGecko (`/api/v3/nfts/project-aeon`, HTTP 200 at 21:18:28Z) reported floor 0.607435 ETH; OpenSea v2 stats (`/api/v2/collections/project-aeon/stats`, HTTP 200 at 21:18:52Z) reported `total.floor_price` 0.607324 with symbol ETH. The pinned `floorRule` prefers OpenSea when its symbol is ETH/WETH, so 0.607324 ETH was selected. The two floors differ by 0.018%, under the 1% investigation threshold. OpenSea's keyed endpoints (best listings, events) returned 401 without an API key — recorded as access failures. - **Onchain cross-check over the pinned window** (blocks 26021226–26028372, closing hash matched the pin): exactly one Transfer on the collection, decoded from its receipt as a Seaport 1.6 `OrderFulfilled` — token #350 sold for 0.59 WETH total (0.5841 to the seller plus 0.0059 OpenSea fee) at block 26024671, matching OpenSea's one-day volume of 0.59 ETH / 1 sale. That sale is corroboration only and was not substituted for the listing floor. - **Recipe**: `{ kind: "panel", source: "https://api.opensea.io/api/v2/collections/project-aeon/stats" }` — the actual URL supporting the selected floor, within the brief's allowed sources. Full API attempts, timestamps, and onchain evidence are in `notes`; the choices the question left open are stated under `definitions`.

Created [artifacts/answer.json](artifacts/answer.json) with **607435000000000000 wei**, both API attempts, and decoded sale evidence. Validator prints `ok`. The file explains that public RPC alone cannot reproduce the offchain listing floor.

Created [artifacts/answer.json](/home/identitymd/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Selected floor: `607315000000000000` wei from OpenSea stats. Validator result: `ok`.

Created [artifacts/answer.json](/home/worker/.imd/seat2/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Selected floor: `607324000000000000` wei. Validation passed: `check-answer.mjs` → `ok`.

Completed [artifacts/answer.json](/home/imd-worker/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). It passes the provided validator (`ok`).

Completed [artifacts/answer.json](/home/seat2/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). It passes the required checker (`ok`) and reports the 0.607435 ETH floor as `607435000000000000` wei, both provider attempts, verified collection scope, and receipt-backed sale evidence.

Created [artifacts/answer.json](/root/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Selected floor: `607315000000000000` wei (0.607315 ETH), from OpenSea stats. Validation passed: `ok`.

Created [artifacts/answer.json](artifacts/answer.json) with **607435000000000000 wei**, API checks, and decoded sale evidence. Checker prints `ok`. The file documents that this offchain listing floor cannot be reproduced from public RPC alone.

Created [artifacts/answer.json](/home/imd/.identitymd-2/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Validation passed: `check-answer.mjs` printed `ok`.

Check passes. Summary: - Verified Project AEON contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c` (ERC-721, ~3332-3333 supply, no token-id restrictions) via both CoinGecko NFT API and OpenSea v2 collection API — both returned 200. - Floor selected per `floorRule`: OpenSea `total.floor_price` = 0.607324 ETH = **607324000000000000 wei** (CoinGecko gave 0.607435 ETH, a 0.018% difference, well under the 1% investigation threshold). - Cross-checked onchain: exactly 1 Transfer event for the contract in the pinned block window (26021226–26028372), decoded from its tx receipt as a Blur marketplace sale of tokenId 350 for 0.59 WETH + 0.0059 WETH fee — correctly *not* substituted for the floor, since it's a completed sale below current listing floor. - Wrote `artifacts/answer.json` with a `panel` recipe citing the OpenSea stats URL; `check-answer.mjs` prints `ok`.

Created [artifacts/answer.json](/root/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Answer: `607324000000000000` wei. Local validator result: `ok`.

Created [artifacts/answer.json](</Users/zhuminquan/.identitymd-2/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json>) with the OpenSea floor of `607329000000000000` wei, API attempts, contract verification, pinned-window sale evidence, and panel recipe. Verifier result: `ok`.

I wrote `artifacts/answer.json` with a floor of 607435000000000000 wei (0.607435 ETH), and `check-answer.mjs` prints `ok`. This rests on one provider and skips the onchain sales cross-check the request asked for. - **CoinGecko:** `https://api.coingecko.com/api/v3/nfts/project-aeon` returned HTTP 200 at 2026-09-21T21:19:21Z. It identifies Project AEON on Ethereum at contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c`, with `floor_price.native_currency` of 0.607435 ETH. It supplied no `last_updated` time. - **OpenSea:** `https://api.opensea.io/api/v2/collections/project-aeon/stats` returned 401 (missing API key), and no credentials were available. I did not try the OpenSea collection page. So there is no OpenSea floor and no percentage difference to report. - **Source used:** With OpenSea unavailable, I used CoinGecko as the floor rule allows, and the panel recipe cites the CoinGecko URL above. - **Sales cross-check:** I did not decode any receipts or sale events. CoinGecko reports one sale in the last day at an average of 0.59 ETH, which I did not use for the floor. - **Contract scope:** I did not check for project or token-id restrictions beyond CoinGecko's contract field. The notes in the answer file say all of this.

I wrote `artifacts/answer.json` with a floor of 607315000000000000 wei (0.607315 ETH), and `check-answer.mjs` prints `ok`. The answer comes from the OpenSea collection page, not the OpenSea API, because that API refused the request. I did not do the sales cross-check. - **OpenSea API:** the v2 stats endpoint returned HTTP 401 because no API key is available. The contract lookup did work and mapped `0xc374a204334d4edd4c6a62f0867c752d65e9579c` to the slug `project-aeon`. It is an ERC721 on Ethereum mainnet, with no token-id restrictions. - **OpenSea page (used):** https://opensea.io/collection/project-aeon showed a floor of 0.607315 ETH, fetched at 2026-09-21T21:19Z. The definitions name this page as the fallback when the API fails. - **CoinGecko API:** it returned HTTP 200 with a floor of 0.607435 ETH and no `last_updated` field, so its freshness can't be confirmed. That is about 0.02% above the OpenSea figure, well under the 1% investigation threshold. - **Sales cross-check:** I did not fetch or decode any sales from transaction receipts. `notes` says so, and it records that CoinGecko reports one sale in 24 hours, unverified onchain. No sale price was used for the floor. - **Recipe:** it is a `panel` recipe citing the OpenSea page as the source. I did not use the block-range RPC scan; the window in the file is copied from `oracle.json`.

Created and validated [artifacts/answer.json]( /home/imd2/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json ). The checker reports `ok`.

Created [artifacts/answer.json](/home/imd2/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Validated successfully: `check-answer.mjs` prints `ok`.

I wrote `artifacts/answer.json` with a floor of 607324000000000000 wei (0.607324 ETH), and `check-answer.mjs` prints `ok`. The sales cross-check against the pinned blocks was not done, so there is no onchain evidence in the answer. - **Floor source:** OpenSea v2 collection stats for the slug `project-aeon`. The call returned HTTP 200 with no key, and `total.floor_price` was 0.607324 ETH (symbol ETH), fetched around 21:18 UTC on 2026-09-21. The OpenSea response carried no timestamp. - **CoinGecko:** the call returned HTTP 200 for contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum, with a floor of 0.607435 ETH. It also carried no `last_updated` value. The two floors differ by 0.018%, well under the 1% investigation threshold. - **Scope:** both sources report 1176 owners, which supports that they describe the same collection. I did not check that OpenSea slug against the collection links; I tried `project-aeon` directly. - **Selection:** OpenSea is used per the floor rule, since its symbol is ETH and the scope matches. The two floors are not averaged. - **Recipe:** `panel`, with the OpenSea stats URL as `source`. The floor is an offchain listing, so a deployer rerun of the recipe can't reproduce it from RPC. Both sources report only one sale in the last 24 hours (average 0.59 ETH). I did not pull OpenSea sale events, retrieve receipts or decode Seaport `OrderFulfilled` logs, and the notes say so.

I wrote `artifacts/answer.json` with a floor of 607324000000000000 wei (0.607324 ETH), and `check-answer.mjs` prints `ok`. I did not do the onchain cross-check of the latest sales, so that part of the task is not done. - **Floor source:** OpenSea v2 stats at `https://api.opensea.io/api/v2/collections/project-aeon/stats`, fetched around 21:19 UTC on 2026-09-21. It returned HTTP 200 without credentials, with `total.floor_price` 0.607324 and symbol ETH. I chose it over CoinGecko because the request's floor rule prefers OpenSea when the symbol is ETH and the scope matches. - **CoinGecko attempt:** `https://api.coingecko.com/api/v3/nfts/project-aeon` also returned 200, with a floor of 0.607435 ETH. That is 0.018% higher than OpenSea, well under the 1% investigation threshold. Neither provider supplied a last-updated timestamp. - **Collection scope:** The contract is `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum mainnet, taken from CoinGecko's response rather than checked by RPC. Owners (1176) and 24-hour volume (0.59 ETH, 1 sale) match between the two providers, so the OpenSea slug covers the same collection. - **Sales cross-check not done:** I did not decode any Seaport `OrderFulfilled` receipts in the pinned window. Both providers report one sale in 24 hours at 0.59 ETH, which I did not verify onchain. The last sale was not used as the floor. The notes in the file say this. The recipe is a `panel` recipe pointing at the OpenSea stats URL.

Taylor, done. `artifacts/answer.json` passes `check-answer.mjs`. Summary: floor = **607,329,000,000,000,000 wei** (0.607329 ETH), from OpenSea v2 collection stats (`total.floor_price`, ETH), cross-checked against CoinGecko's fresh 0.607435 ETH (0.0175% diff, both fresh 200s). Contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c` verified on both providers, no token-id restrictions. Onchain: pinned window had exactly one AEON Transfer (block 26024671), confirmed as a Seaport sale (0.5959 ETH incl. fee, token #350) via receipt decoding — used only as corroboration, not substituted for the floor. OpenSea's sale-events endpoint returned 401 (no key), noted as an access failure.

I wrote `artifacts/answer.json` with a floor of **607324000000000000 wei** (0.607324 ETH). `check-answer.mjs` prints `ok`. I did not do the onchain sales cross-check the task asked for. - **Source:** the answer is OpenSea's `total.floor_price` from `https://api.opensea.io/api/v2/collections/project-aeon/stats`. It returned HTTP 200 and reports the price in ETH, so the floor rule prefers it. I retrieved it at 2026-09-21T21:18:38Z. OpenSea gave no `last_updated` time. - **CoinGecko:** `/nfts/project-aeon` also returned HTTP 200, with a floor of 0.607435 ETH. That is about 0.018% away from OpenSea, well inside the 1% threshold. - **Contract:** CoinGecko lists `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum. I did not check the contract on chain, so I treated it as a dedicated collection with no token-id filter. - **Sales:** the providers report one sale in the last 24 hours at about 0.59 ETH. I decoded no receipts or marketplace events, and the notes say so. The sale price is not used as the floor. - **Recipe:** the recipe is `panel`, with the OpenSea stats URL as its source.

Created [artifacts/answer.json](/home/imd/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Selected floor: `607329000000000000` wei. Validator result: `ok`.

check-answer.mjs prints `ok`. Done. **Answer: 607435000000000000 wei (0.607435 ETH)** — Project AEON's floor price (CoinGecko `project-aeon`, contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c`). Summary: - OpenSea v2 API returned 401 (no key), so fell back to CoinGecko's live NFT API per the fallback rule; OpenSea's own collection page corroborated with 0.60733 ETH (0.017% apart). - Onchain cross-check found exactly one Transfer in the pinned window — a Blur sale at 0.59+0.0059 ETH fee — used only as corroboration, not substituted for the floor. - `artifacts/answer.json` passes `check-answer.mjs` (`ok`).

Created [artifacts/answer.json](/home/imd3/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Selected floor: `607339000000000000` wei. Validation passed: `check-answer.mjs` printed `ok`.

I wrote `artifacts/answer.json` with a floor of **607329000000000000 wei** (0.607329 ETH), and `check-answer.mjs` prints `ok`. I did not do the onchain sales cross-check the task asked for. - **Floor source:** the OpenSea v2 stats endpoint (`https://api.opensea.io/api/v2/collections/project-aeon/stats`) returned HTTP 200, with `floor_price` 0.607329 ETH. The request's floor rule prefers OpenSea when the symbol is ETH and the scope matches, so I used it. - **Collection scope:** the contract is `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum mainnet, whole contract with no token-id restriction. Both CoinGecko and the OpenSea collection endpoint report the same contract. - **CoinGecko attempt:** the endpoint returned HTTP 200 with a floor of 0.607435 ETH. That is about 0.017% away from OpenSea, well under the 1% threshold that would need investigating. Neither provider gave a `last_updated` time, so the notes record the UTC retrieval time (2026-09-21T21:17Z) instead. - **Sales cross-check not done:** both providers report one sale in the last 24 hours, at 0.59 ETH. I did not find its transaction hash or decode its Seaport event from the receipt, so it is unverified onchain. The notes say so, and I did not use the sale price as the floor. - **Recipe:** it is a `panel` recipe with the OpenSea stats URL as its source.

`artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. The answer is 607339000000000000 wei (0.607339 ETH), but I did not do the onchain sales cross-check the task asked for. - **OpenSea:** `https://api.opensea.io/api/v2/collections/project-aeon/stats` returned 200 with no key. `total.floor_price` was 0.607339 ETH, and there was no `last_updated` field. I fetched it live on 2026-09-21 at about 21:17 UTC. The collection page returned 403 to curl. - **CoinGecko:** `https://api.coingecko.com/api/v3/nfts/project-aeon` returned 200 with a floor of 0.607435 ETH. It lists the contract as `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum. - **Cross-check:** The two floors differ by 0.016%, well under the 1% investigation threshold. Both report 1,176 owners, so the collection scope matches. - **Selection:** Following the request's floor rule, I used OpenSea's floor. The recipe is `panel` with the OpenSea stats URL as its source. - **Sales:** I did not query the RPC for Seaport sale events or receipts in blocks 26021226–26028372, so the notes report no sales. They say so explicitly. One thing I got wrong on the first write: the `window` keys have to be in the order `toBlock`, `fromBlock`, `toBlockHash`, which the checker enforced.

I wrote `artifacts/answer.json` with a floor of 607339000000000000 wei (0.607339 ETH). `check-answer.mjs` prints `ok`. I did not do the onchain sales cross-check the task asked for. - **Floor source:** OpenSea's collection stats endpoint, `https://api.opensea.io/api/v2/collections/project-aeon/stats`. It returned HTTP 200 with `floor_price` 0.607339 ETH. I used it because the floor rule prefers OpenSea when the symbol is ETH. The recipe is a `panel` recipe citing that URL. - **CoinGecko:** `https://api.coingecko.com/api/v3/nfts/project-aeon` also returned HTTP 200, with a floor of 0.607435 ETH. That is about 0.016% above OpenSea's, well under the 1% threshold. I put this in the notes as refresh-timing drift. - **Collection scope:** CoinGecko lists contract `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum, a 3333-supply collection, so no token-id filter applies. I guessed the OpenSea slug directly. Both providers report 1176 owners and 0.59 ETH of one-day volume, so it is the same collection. - **Timestamps:** the notes record the retrieval time, about 21:16 UTC on 2026-09-21. Neither API supplied a last-updated time. Two things are not done, and the notes say so: - **Sales:** I did not decode Seaport sale events or scan the pinned block window, so no sale transaction hashes are reported. - **Contract:** I did not verify the contract by RPC. It comes from the CoinGecko response.

Check passes. Summary: - Verified Project AEON's mainnet contract (`0xc374a204334d4edd4c6a62f0867c752d65e9579c`) via CoinGecko NFT API and cross-confirmed the OpenSea slug `project-aeon` via the contract lookup endpoint. - Both CoinGecko (`floor_price.native_currency = 0.607435 ETH`) and OpenSea (`total.floor_price = 0.607425 ETH`) succeeded live; per the floorRule, OpenSea's fresher collection-stats floor was selected (0.17% apart, within tolerance). - Cross-checked onchain: scanned the pinned block window (26021226–26028372, hash-pinned) for Transfer events on the AEON contract, found exactly one, decoded its receipt as a Blur marketplace sale (0.5959 ETH incl. fee for token #350) — consistent with, but correctly not substituted for, the listing floor. - Wrote `artifacts/answer.json` with answer `607425000000000000` wei and a `panel` recipe citing the OpenSea stats URL; `check-answer.mjs` prints `ok`.

Completed [artifacts/answer.json](/root/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Validated successfully: `check-answer.mjs` prints `ok`.

The check passes. Summary: - Verified Project AEON's contract (0xc374a204334d4edd4c6a62f0867c752d65e9579c) via both CoinGecko NFT API and OpenSea v2 collection API — both returned HTTP 200 with matching contract/chain. - Floor per `floorRule`: OpenSea `total.floor_price` = 0.607425 ETH (preferred, symbol ETH), CoinGecko 0.607435 ETH (~0.0016% diff, no discrepancy investigation needed) → answer **607425000000000000 wei**. - Cross-checked onchain: exactly 1 Transfer in the pinned window (26021226–26028372), decoded as a genuine Seaport 1.6 sale for 0.5959 ETH — reported as corroborating evidence only, not substituted for the floor. - `artifacts/answer.json` passes `check-answer.mjs` (`ok`).

Completed [artifacts/answer.json](/home/worker/.identitymd/work/e5949524-e99b-4ed8-af03-7ec0f2ffc5be/26f9c0c3-3578-487e-b8f2-aa74abb339b8/artifacts/answer.json). Validated successfully: `check-answer.mjs` prints `ok`.

Checker prints `ok`. `artifacts/answer.json` reports the Project AEON floor as 607,420,000,000,000,000 wei (0.60742 ETH), sourced from the OpenSea best-listings endpoint, cross-checked against CoinGecko and OpenSea stats (sub-1% spread, explained) and against the one onchain sale (tx `0x21ef8bd4...10ed2`, decoded Seaport `OrderFulfilled`) found in the pinned block window — used only as corroboration, not substituted for the floor.

I wrote `artifacts/answer.json` with a floor of **607425000000000000 wei** (0.607425 ETH), and `check-answer.mjs` prints `ok` for it. - **OpenSea:** the v2 stats endpoint for `project-aeon` returned HTTP 200 with no credentials. `total.floor_price` is 0.607425 ETH. It gave no last-updated time, so the freshness evidence is my retrieval at 2026-09-21T21:04:14Z. - **CoinGecko:** the NFT endpoint for `project-aeon` returned HTTP 200 with a floor of 0.607435 ETH. The contract is `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum, covering the whole collection with no token-id filter. - **Discrepancy:** the two floors differ by about 0.0016%, well under the 1% threshold. I picked OpenSea because the floor rule prefers it when the symbol is ETH and the scope matches. - **Recipe:** it is a `panel` recipe with the OpenSea stats URL as its source. I did not do the onchain sales cross-check. I never fetched transaction receipts or decoded Seaport sale events, so the notes list no sale hashes. Both providers show one sale in the last 24 hours (0.59 ETH), which is consistent with the floor but proves nothing about it. The notes say this explicitly.

I wrote `artifacts/answer.json` with a floor of 607425000000000000 wei (0.607425 ETH), and `check-answer.mjs` prints `ok`. I did not do the onchain sales cross-check. - **Floor source:** OpenSea's collection stats endpoint, `https://api.opensea.io/api/v2/collections/project-aeon/stats`, returned HTTP 200 with `total.floor_price` 0.607425 ETH. I fetched it on 2026-09-21 at about 21:04 UTC, and it gave no `last_updated` time. I picked it because the request's floor rule prefers OpenSea when the symbol is ETH and the collection matches. - **CoinGecko check:** `https://api.coingecko.com/api/v3/nfts/project-aeon` also returned HTTP 200, with a floor of 0.607435 ETH. The two floors differ by about 0.0016%, well under the 1% investigation threshold. CoinGecko also gave no `last_updated` time. - **Contract:** CoinGecko lists the Ethereum contract as `0xc374a204334d4edd4c6a62f0867c752d65e9579c`. I did not check the contract on chain or look for token-id restrictions myself. - **Sales cross-check not done:** Both providers report one sale in the last 24 hours, at about 0.59 ETH. I did not fetch receipts or decode Seaport sale events for the pinned blocks. The notes in the answer say so. - **Recipe:** The recipe is `panel` with the OpenSea stats URL as its source, since the request is panel evidence.

I wrote `artifacts/answer.json` with a floor of 607501000000000000 wei (0.607501 ETH). `check-answer.mjs` prints `ok`. I did not do the on-chain sales cross-check, and I didn't verify the pinned block hash. - **OpenSea:** `https://api.opensea.io/api/v2/collections/project-aeon/stats` returned HTTP 200 without a key, with `total.floor_price` 0.607501 ETH. I used it as the selected floor because the symbol is ETH and the collection scope matches. It supplies no `last_updated`. - **CoinGecko:** `https://api.coingecko.com/api/v3/nfts/project-aeon` returned HTTP 200 with `floor_price.native_currency` 0.607636 ETH. The contract is `0xc374a204334d4edd4c6a62f0867c752d65e9579c` on Ethereum, and it also supplies no `last_updated`. - **Discrepancy:** the two floors differ by 0.022%, well under the 1% threshold. - **Not done:** I did not decode any sales from transaction receipts. Both APIs report 1 sale in the last 24 hours (0.59 ETH), which I did not tie to the pinned blocks. The notes say this. The recipe is a `panel` recipe citing the OpenSea stats URL as its source. The floor was fetched at 2026-09-21T20:55Z.