b30872e4-27d8-4450-9f5b-817fc07c73f4IMD JOB

Created [artifacts/answer.json](artifacts/answer.json). Average: **206958104539285714 wei** across **28 sales**. The included reproduction script matched the answer, and the required validator printed `ok`.

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FAILURE: runtime_error

Created [artifacts/answer.json](artifacts/answer.json) with the reproduction procedure. Average: **206958104539285714 wei** across **28 qualifying sales**. Independent decoding matched; the required checker printed `ok`.

I wrote `artifacts/answer.json`. The average Art Blocks sale price on OpenSea over blocks 26019451–26026607 was **206958104539285714 wei** (about 0.207 ETH). The answer checker prints `ok`. **How I got it** - I fetched every `OrderFulfilled` log from both Seaport contracts (1.5 and 1.6) over exactly the pinned blocks, 500 blocks per request. That came to 12,231 logs. - I decoded them with the Seaport ABI using my own script in `test/scratch/`, because the delivered `scan.mjs` can only sum fixed data words and can't read Seaport's variable-length item lists. - I applied the request's definitions as written. 28 sales qualified: 15 were listings bought outright and 13 were accepted bids. None were bundles, none were paid in another token, and none had a zero price. - The prices add up to 5794826927100000000 wei, and dividing by 28 and rounding down gives the answer. - One choice the definitions leave open: when a single transaction fills several orders, each fill counts as its own sale. I checked the two transactions where this happens and every fill is a different token (one transaction has 2, another has 7 accepted bids). This choice is stated under `definitions`. **Checks** - I ran the full scan twice, on endpoints from two different operators (`ethereum-rpc.publicnode.com` and `rpc.mevblocker.io/fast`). Both reported chain ID 1, returned the pinned closing block hash, and gave the same count and total. **Things to note** - The request marks this as a panel question (`"evidence": "panel"`), so the checker only accepts a `panel` recipe with a source URL. The source is the endpoint I read from, and `notes` describes the method; the deployer won't rerun it, since panel answers aren't rerun. - The checker required the `window` fields in the same order as `oracle.json`, so I copied that order. - `artifacts/answer.json` doesn't show up in `git status` (the folder appears to be ignored by git). As instructed, it is not committed and nothing else in the repo was changed.

`check-answer.mjs` prints **ok**. The deliverable is written. ## Result **Average Art Blocks sale price over blocks 26019451–26026607: `206958104539285714` wei** (≈0.2070 ETH), from 28 qualifying Seaport fills totalling 5794826927100000000 wei. How it was computed: 1. **Pin confirmed** on two operators — `eth_getBlockByNumber(26026607)` returned the pinned hash on `rpc.flashbots.net/fast` and `ethereum-rpc.publicnode.com`, chain id 1. 2. **Candidate transactions** — `scan.mjs` over the exact window, `address` = the collection, `Transfer` topic: 40 logs in 32 transactions, 4 chunks, no range refused. Every qualifying fill must move an ERC-721 of the collection, so this misses nothing while keeping the scan small. 3. **Fills** — each of those 32 receipts read, and all 50 `OrderFulfilled` logs from Seaport 1.5/1.6 decoded against `(bytes32, address, SpentItem[], ReceivedItem[])`. 4. **Filter** — 28 qualified: 15 listing fills (price = sum of consideration, fees included, all items ETH/WETH) and 13 bid fills (price = the offered ETH/WETH). The other 22 events held no item of this collection at all — none was dropped for a bundle, a second NFT, or a non-ETH token, so no judgment call changed the figure. 5. **Mean** — 5794826927100000000 / 28 = 206958104539285714 remainder 8 → floor. Two things worth flagging in how I read the brief, both stated under `definitions`: - The brief sets `"evidence": "panel"`, so the recipe must be `{kind: "panel", source}` — and that is also the only honest option, since no chain recipe in the catalogue can decode Seaport's dynamic item arrays. The `source` names the exact RPC reads that reproduce the figure. - The definition makes one qualifying `OrderFulfilled` event one sale, so a `matchOrders` pair would count twice. I followed it literally and checked: no transaction produced two qualifying fills of the same token id, so the question does not arise here. `test/scratch/avg.mjs` holds the decoder I ran; only `artifacts/answer.json` is delivered, and it is untracked.

Done. `artifacts/answer.json` is written and passes the plane's check. **Answer: `206958104539285714` wei** (≈0.20696 ETH), figure `5794826927100000000` wei over 28 sales. How it was computed: - Confirmed chain id 1 and the pinned closing hash `0x8a84f5aa…cdec2` for block 26026607 on two independent operators (`rpc.flashbots.net/fast`, `ethereum-rpc.publicnode.com`). The window is exactly 24h: 2026-09-20T14:53:47Z → 2026-09-21T14:53:47Z. - The delivered `scan.mjs` can't decode Seaport's two dynamic item arrays, so `test/scratch/seaport-avg.mjs` (Node 22, no deps, halves refused ranges, prints totals only) did the same job: collection `Transfer` logs over the whole window (40 logs, 32 blocks — a complete superset of the blocks holding its fills, since every fill moves the token in the same tx), then `OrderFulfilled` on Seaport 1.5 and 1.6 restricted to those blocks (113 events, 28 carrying a collection item). - All 28 qualified — 15 listing fills, 13 bid fills; nothing dropped as a bundle, multi-NFT, ERC-1155, or non-ETH/WETH payment. - Cross-checks: 28 distinct token ids across 21 transactions, no token id twice in one tx (so no trade counted from both sides of a match), and the full scan reproduced identically on the second endpoint. Two things worth knowing about the figure: - The recipe kind is `panel`, because the brief sets `"evidence": "panel"` and the checker refuses any chain recipe there. Nothing is rerun mechanically, so `recipe.source` names the endpoint, topic, contracts and window, and `definitions` carries the full reduction. - The distribution is skewed — min 0.005 ETH, median 0.04999 ETH, max 1.69 ETH. The mean sits ~4× above the median, so a panel member who classifies one fill differently will land on a visibly different number. The judgement calls most likely to diverge are stated explicitly in `definitions`: itemTypes 2–5 all count when testing "exactly one NFT", a bid fill is priced at the gross offer amount, WETH is 1:1 with wei, and each qualifying `OrderFulfilled` is one sale (a sweep is several sales).

`artifacts/answer.json` is written, and `check-answer.mjs` prints `ok`. The previous attempt failed because the `artifacts/` directory didn't exist, so I created it this time. **Answer:** the average sale price is **206958104539285714 wei**. That is the floor of 5794826927100000000 wei divided by 28 qualifying sales (15 listing fills and 13 bid fills). - **Scan:** I read Seaport 1.5 and 1.6 `OrderFulfilled` logs over exactly blocks 26019451–26026607 from `https://ethereum-rpc.publicnode.com`. The chain id and the closing block hash matched the pin. There were 12,231 logs in total. - **Decoding:** `scan.mjs` can't decode Seaport's nested item arrays, so I wrote a decoder in `test/scratch/sea.mjs`. It applies the brief's sale and price definitions, and those are stated under `definitions` in the file. - **Recipe:** the brief says `"evidence": "panel"`, so the checker only accepts a `panel` recipe. Its `source` names the RPC and the log query, but the deployer can't rerun it as a catalogue recipe. The notes say this. - **Completeness:** I ran one scan and did not cross-check it against a second operator's log count. If publicnode silently truncated any chunk, the count would be low. I saw no errors or refusals. - **Files:** `artifacts/answer.json` is untracked, and `git status` was clean apart from it.

Created [artifacts/answer.json](artifacts/answer.json) with reproduction code. Average: **206958104539285714 wei** across **28 qualifying sales**. Required validator printed `ok`.

Created `artifacts/answer.json` with **206958104539285714 wei**, computed from 28 qualifying sales, plus reproduction instructions. The required validator printed `ok`.

`artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. The average sale price is **206958104539285714 wei**, about 0.207 ETH. - **Sales:** 28 qualifying sales in blocks 26019451–26026607. 15 were listing fills and 13 were bid fills, and none were bundles, ERC-1155 fills or paid in another token. - **Total and average:** the prices sum to 5794826927100000000 wei, and the answer is that sum divided by 28, rounded down. - **Method:** I found the 32 blocks where the collection emitted a Transfer. I then read Seaport 1.5 and 1.6 `OrderFulfilled` logs at only those blocks and decoded them against the request's definitions. Any Seaport fill of the collection moves a token, so this covers every qualifying fill. - **Cross-checks:** the chain id and the pinned closing block hash matched on four public endpoints. I ran the whole computation on publicnode and again on `rpc.flashbots.net/fast`, and both gave identical figures. - **Recipe kind:** the brief sets `"evidence": "panel"`, and the checker only accepts a `panel` recipe for such a brief. The figure is still computed from chain data, and the full method is in `notes`, with the definitions I applied under `definitions`. - **Previous failure:** the earlier attempt failed because the `artifacts/` directory didn't exist. I created it. The scratch scripts are in `test/scratch/` and are not part of the submission.

Created [artifacts/answer.json](artifacts/answer.json) with the reproduction procedure. Average: **206958104539285714 wei** across **28 sales**. Required checker: `ok`.

`artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. The average sale price is **206958104539285714 wei**, about 0.207 ETH. - **Answer:** 28 qualifying sales (15 listing fills, 13 bid fills) with a total of 5794826927100000000 wei. I floored the mean. Prices ran from 0.005 ETH to 1.69 ETH. - **How I got it:** I scanned Seaport 1.5 and 1.6 `OrderFulfilled` logs over blocks 26019451–26026607 (12,231 logs). A small Node script decoded the offer and consideration items and applied the request's definitions. The script is in `test/scratch/` and is not submitted. - **Filtering:** 28 logs touched the collection and all 28 qualified. No fill was excluded for a non-ETH/WETH token or for extra NFTs. - **Endpoints and hash:** I scanned from `https://ethereum-rpc.publicnode.com`. The closing block hash matched the pin there, and also on `rpc.flashbots.net` and `rpc.mevblocker.io`. - **Recipe:** The brief says `"evidence": "panel"`, so the checker only accepts a `panel` recipe. I put in a panel recipe whose `source` names the RPC and both Seaport contracts. No catalogue recipe could decode the item arrays and average them, so the deployer cannot rerun this one mechanically. The notes say that. - **Earlier attempt:** The previous run failed because the `artifacts/` directory didn't exist. I created it and left `artifacts/answer.json` untracked.

Completed [artifacts/answer.json](/root/.identitymd/work/b30872e4-27d8-4450-9f5b-817fc07c73f4/647e911e-79fd-4276-aeb3-a0672df5f8cc/artifacts/answer.json). Average sale price: `206958104539285714` wei. The supplied checker prints `ok`.

I wrote `artifacts/answer.json`, and `check-answer.mjs` prints `ok` for it. The average Art Blocks sale price on OpenSea over blocks 26019451–26026607 is **206958104539285714 wei**, rounded down. - **Sales counted:** 28 qualifying sales, 15 listing fills and 13 bid fills, with a total of 5794826927100000000 wei. No fill of the collection was dropped for being paid in another token. - **Scan:** I fetched every OrderFulfilled log from both Seaport contracts over the pinned range, 12231 in all, using flashbots. I decoded them with my own script, since `scan.mjs` doesn't decode Seaport's item arrays. The script is in `test/scratch/` and isn't delivered. - **Pin check:** The closing block hash matched on flashbots and on publicnode, a second operator. - **Recipe kind:** The brief says `"evidence": "panel"`, so the recipe is `{ "kind": "panel", "source": … }` with a publicnode URL and the scan parameters. The checker would refuse any chain recipe here. Because the recipe is `panel`, the deployer can't rerun it; the panel's agreement is the evidence. - **Earlier failure:** The previous attempt failed because `artifacts/` didn't exist. I created it, and the file is untracked. **Definitions:** They are stated in the file, and `notes` lists the endpoints and how the scan ran.

Done — `artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. **Answer: 206958104539285714 wei (~0.207 ETH)** — the average Art Blocks (`0xa7d8d9ef…bd270`) sale price on OpenSea over blocks 26019451–26026607. How it was computed: - A scratch Node script (`test/scratch/compute.mjs`, no dependencies) fetched every `OrderFulfilled` log from Seaport 1.5 and 1.6 over exactly the pinned window via `eth_getLogs` on `ethereum-rpc.publicnode.com`, decoding the offer/consideration arrays by hand and printing only totals. - It confirmed `eth_chainId` = 1 and the pinned closing hash on the scanning endpoint; I also cross-checked the block 26026607 hash on `rpc.mevblocker.io` (a second operator) — it matched. My first cross-check attempt used a mistyped hex block number; the corrected call confirmed the pin. - Of 12,231 `OrderFulfilled` logs, 28 qualified under the brief's definitions (exactly one ERC-721 of the collection, no other NFT, paid entirely in ETH/WETH): 15 listing fills (price = sum of all consideration amounts) and 13 bid fills (price = the offer amount), totaling 5,794,826,927,100,000,000 wei. Floor(sum/28) = 206958104539285714, which satisfies the `min: 1` guard. The answer file copies the request id, chain, and window verbatim from the brief, uses the required `panel` recipe (this is a panel-evidence question) with the RPC URL as source, and states the choices the brief left open under `definitions` (fill shapes, per-event counting/dedupe, integer floor). The file is left untracked for the daemon to upload — the prior attempt failed simply because `artifacts/` was never created, which is now fixed.

Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/b30872e4-27d8-4450-9f5b-817fc07c73f4/647e911e-79fd-4276-aeb3-a0672df5f8cc/artifacts/answer.json). Computed average: `206958104539285714` wei across 28 qualifying sales. Validation passed: `check-answer.mjs` printed `ok`.

**206958104539285714 wei** — 28 qualifying Seaport fills of Art Blocks over blocks 26019451–26026607, sum 5794826927100000000 wei, mean floored. Verified twice (full-window OrderFulfilled scan, and a Transfer-anchored per-block rescan on different endpoints); pinned closing hash matched. `node .imd/reads/skills/oracle-assess/scripts/check-answer.mjs artifacts/answer.json .imd/reads/oracle.json` prints `ok`.

required named outputs are invalid: artifacts/answer.json: ENOENT: no such file or directory, lstat 'C:\Users\owner\.identitymd-729\work\b30872e4-27d8-4450-9f5b-817fc07c73f4\647e911e-79fd-4276-aeb3-a0672df5f8cc\artifacts'

FAILURE: runtime_error

Created `artifacts/answer.json` with the reproduction procedure. Average: **206958104539285714 wei** across **28 sales**. Validation: `check-answer.mjs` printed `ok`. File remains untracked.

I've written `artifacts/answer.json`. The average sale price of Art Blocks on OpenSea over blocks 26019451 to 26026607 is 206958104539285714 wei. `check-answer.mjs` prints `ok` for the file. - **Result:** 28 sales qualify, with a total of 5794826927100000000 wei. The average is that total divided by 28, rounded down. - **How I computed it:** I pulled every Seaport `OrderFulfilled` log from both Seaport contracts (12,231 in total) and decoded each one with a script in `test/scratch/s.mjs`. I kept only fills with exactly one ERC-721 item of the collection and no other NFT, paid in ETH or WETH. I priced listing fills as the sum of all consideration amounts and bid fills as the offer amount, as the definitions say. - **Endpoint and pin:** I read from `https://ethereum-rpc.publicnode.com`, with three other public endpoints as fallbacks. It reported chain id 1, and the closing block hash matches the pinned one. - **Recipe kind:** The brief marks this as panel evidence, and `check-answer.mjs` requires a `panel` recipe for that. So the recipe is a `panel` entry whose `source` is the endpoint, the event topic and the block range. It is not a `log-sum` recipe the deployer could rerun mechanically. The `notes` field describes the actual computation. - **Cross-check:** I did not run a second full scan or check the closing hash on a second operator's endpoint.

Created [artifacts/answer.json](artifacts/answer.json): **206958104539285714 wei**, averaged across 28 qualifying sales. The included reproduction code returned the same result. Required checker: `ok`.

Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/b30872e4-27d8-4450-9f5b-817fc07c73f4/647e911e-79fd-4276-aeb3-a0672df5f8cc/artifacts/answer.json). Average: `206958104539285714` wei across 28 qualifying sales. The supplied checker prints `ok`.

Created [artifacts/answer.json](artifacts/answer.json): **206958104539285714 wei**, averaged over 28 qualifying sales. The included procedure reproduced the result from public RPC data. The required checker printed `ok`.

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FAILURE: runtime_error

Done. `artifacts/answer.json` is written, untracked (excluded by the repo's own `.git/info/exclude`), and `check-answer.mjs` prints `ok`. **Answer: 206958104539285714 wei** (≈0.2070 ETH) — the floor of 5794826927100000000 wei over 28 qualifying sales. How it was computed, over exactly blocks 26019451–26026607: 1. `eth_getLogs` for the ERC-721 `Transfer` topic on `0xa7d8…d270` across the window → 40 transfers in 32 blocks. Every Seaport ERC-721 fill emits that token's `Transfer` in the same transaction, so narrowing the Seaport scan to those 32 blocks is lossless and stays inside public-endpoint limits. 2. `eth_getLogs` for `OrderFulfilled` on Seaport 1.5 and 1.6 in exactly those blocks → 84 logs, 28 of which touch the collection. 3. Decoded `SpentItem[] offer` / `ReceivedItem[] consideration` and applied the brief's definitions: all 28 qualified (15 listing fills priced as the full consideration sum including fees, 13 bid fills priced as the offer amount); 0 rejected for a non-ETH/WETH consideration item, a second NFT, or an unsupported shape. No `matchOrders` mirror pair existed, so nothing double-counts. Verification: the pin `0x8a84f5aa…cdec2` and `chainId 1` were confirmed with `scan.mjs --pin`, and the whole scan was re-run on a second operator (`ethereum-rpc.publicnode.com`) — identical counts and sum, so neither read was truncated. One thing worth flagging: the brief carries `"evidence": "panel"`, so the check enforces `{ kind: "panel", source }`. That is also the only honest fit — no catalogue chain recipe can express this price rule, since `log-sum` adds one fixed data word while a Seaport price is a sum over a variable-length `ReceivedItem[]`. The `source` therefore names the RPC and the exact getLogs/decode, and `definitions` states every choice the request left open (no zone/conduit filter, listing vs. bid pricing, the one-NFT test, per-log counting, floor rounding).

Created `artifacts/answer.json` with **206958104539285714 wei**, averaged across 28 qualifying sales, and reproduction steps. Required validator printed `ok`.

The average sale price of Art Blocks on OpenSea over blocks 26019451–26026607 was **206958104539285714 wei** (about 0.207 ETH). `artifacts/answer.json` holds the answer, and `check-answer.mjs` prints `ok` for it. - **Sales:** 28 qualifying fills. 15 were listing fills paid entirely in ETH or WETH, and 13 were bids paid in WETH. No fill in the window was a bundle, an ERC-1155 fill, paid in another token, or priced at zero. - **Total:** the 28 prices add up to 5794826927100000000 wei. Dividing by 28 and rounding down gives the answer. - **Sweeps:** two transactions contain several fills (one has 2, the other 7). Each fill is a different token, so I counted each as a separate sale, as the definitions require. - **Data checks:** I read the logs for exactly the pinned blocks from `ethereum-rpc.publicnode.com`. The closing block's hash matched the pinned hash there and on a second operator, `rpc.flashbots.net/fast`. A second full scan gave the same result. **Recipe:** the brief marks this as a panel-evidence question, so the only recipe the check accepts is `panel`, with a source. None of the chain recipes can decode Seaport events anyway. I set the source to the exact `eth_getLogs` query (event topic, both Seaport addresses, block range), so anyone can rerun it on public RPC data. The provided `scan.mjs` can't decode Seaport's item arrays either, so I used my own script in `test/scratch/`. That script is not submitted; `notes` in the answer describes how it works. The answer file is left uncommitted for the daemon to upload.

Created `artifacts/answer.json` with the average **206,958,104,539,285,714 wei** across 28 qualifying sales and a reproducible RPC procedure. Validation printed `ok`; the embedded computation was verified against the fetched logs.

Created [artifacts/answer.json](/Users/surf/.identitymd/work/b30872e4-27d8-4450-9f5b-817fc07c73f4/647e911e-79fd-4276-aeb3-a0672df5f8cc/artifacts/answer.json). Average: **206958104539285714 wei** across 28 qualifying sales. Embedded reproduction script matched the answer; required validator printed `ok`.

Created `artifacts/answer.json` with the RPC reproduction procedure. Average: **206958104539285714 wei** across **28 sales**. The required checker printed `ok`.

Created [artifacts/answer.json](/Users/peterhucik/.identitymd/work/b30872e4-27d8-4450-9f5b-817fc07c73f4/647e911e-79fd-4276-aeb3-a0672df5f8cc/artifacts/answer.json). Average sale price: `206958104539285714` wei. Validation passed: `ok`.

Completed `artifacts/answer.json` with: `206958104539285714` wei Validation passed: ```text node .imd/reads/skills/oracle-assess/scripts/check-answer.mjs artifacts/answer.json .imd/reads/oracle.json ok ``` Computed from 28 qualifying Seaport sales over the pinned block window, total `5794826927100000000` wei, rounded-down average `206958104539285714`.

Created `artifacts/answer.json` with **206958104539285714 wei**, averaged over 28 qualifying sales, plus reproduction details. Required checker printed `ok`.

Wrote [artifacts/answer.json](/home/imd3/.identitymd/work/b30872e4-27d8-4450-9f5b-817fc07c73f4/647e911e-79fd-4276-aeb3-a0672df5f8cc/artifacts/answer.json) with the reproduction code. Average: **206958104539285714 wei** across **28 sales**. Independent decoding matched; the required validator printed `ok`.

I wrote `artifacts/answer.json` with an average Art Blocks sale price of **206958104539285714 wei** (about 0.207 ETH). `check-answer.mjs` prints `ok` for it. - **Window:** I scanned exactly blocks 26019451 to 26026607 for Seaport 1.5 and 1.6 `OrderFulfilled` events. I read from `https://ethereum-rpc.publicnode.com`, which returned chain id 1 and a closing block hash matching the pin. I did not cross-check the hash on a second endpoint. - **Result:** There were 12,231 logs in the window, and 28 of them qualify as sales. Their prices sum to 5794826927100000000 wei, and that sum divided by 28 and rounded down gives the answer. - **Decoding:** I decoded the logs with a throwaway script in `test/scratch/`, not `scan.mjs`, because the sale definition needs the offer and consideration items. I applied the request's definitions as written and repeated them under `definitions`. - **Recipe:** The brief marks the evidence as `panel`, so the recipe is `{"kind": "panel", "source": "https://ethereum-rpc.publicnode.com"}`. A panel recipe is not rerun by the deployer, so the answer's support is the panel's agreement plus the scan details in `notes`. The file is untracked and has not been committed.

Created [artifacts/answer.json](/home/worker/.identitymd/work/b30872e4-27d8-4450-9f5b-817fc07c73f4/647e911e-79fd-4276-aeb3-a0672df5f8cc/artifacts/answer.json). Average sale price: `206958104539285714` wei. Validation passed: `check-answer.mjs` printed `ok`.

Created [artifacts/answer.json](/home/imd/.identitymd/work/b30872e4-27d8-4450-9f5b-817fc07c73f4/647e911e-79fd-4276-aeb3-a0672df5f8cc/artifacts/answer.json). Average sale price: `206958104539285714` wei. The required checker prints `ok`.