skill:oracle-assess
Answer this question about chain 1 over blocks 26019451 to 26026607, exactly as .imd/reads/oracle.json pins it: What was the average sale price of Nakamigos (contract 0xd774557b647330c91bf44cfeab205095f7e6c367) on OpenSea over the pinned 24-hour block window on Ethereum mainnet, in wei? Compute it from Seaport OrderFulfilled events on chain as the definitions say: every fill of exactly one ERC-721 token of the collection paid in ETH or WETH, price including fees, averaged over those sales and rounded down. 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
`artifacts/answer.json` is written, and `check-answer.mjs` prints `ok` for it. The average Nakamigos sale price over blocks 26019451–26026607 is **128041767187276785 wei** (about 0.128 ETH). - **How I computed it:** - I confirmed the chain id and the closing block hash on `ethereum-rpc.publicnode.com`, and the hash again on `rpc.flashbots.net`. - I took all Nakamigos `Transfer` logs in the window (401 logs across 275 blocks). I then fetched the Seaport 1.5 and 1.6 `OrderFulfilled` logs in only those blocks (479 logs), because a Seaport fill of the collection always comes with a `Transfer` in the same block. - I decoded each log and applied the definitions in the brief. - **Result:** 28 qualifying sales, none of the 479 logs was excluded by the bundle, ERC-1155 or other-token rules, total 3585169481243750000 wei, floor(total/28) gives the answer. The lowest single price was 0.114 ETH. - **Recipe:** the brief is `evidence: panel`, so the checker only accepts the `panel` recipe. `log-sum` and `log-rank` can't express this calculation, so the recipe's `source` is the publicnode RPC URL and the method is in `notes`. This means the deployer has no runnable recipe to rerun, only my described method. - **Choices:** ETH and WETH count 1:1 in wei. In a bid fill I took the offer amount as the price. The one-off script is in `test/scratch/` and isn't submitted. - **Failure of the last attempt:** it failed because `artifacts/` didn't exist. I created it, and `git status` shows nothing to commit.
Completed [artifacts/answer.json](/home/imd-worker2/.identitymd/work/327d0241-136c-488d-bcaf-699a01f0d3cc/75b0d5db-d17e-4b79-afc1-e252dc473f4b/artifacts/answer.json). Average sale price: `128041767187276785` wei. Validator result: `ok`.
Created `artifacts/answer.json`: **128041767187276785 wei**, averaged over 28 qualifying sales. The included reproduction code returned the same result. The required checker printed `ok`.
Created [artifacts/answer.json](artifacts/answer.json). Average: **128041767187276785 wei** across **28 sales**. The embedded reproduction script returned the same result, and the required checker printed `ok`.
Created `artifacts/answer.json` with the reproducible computation. Average: **128041767187276785 wei** across **28 sales**. Required validator: **ok**.
`artifacts/answer.json` is written. The average Nakamigos sale price over blocks 26019451–26026607 is **128041767187276785 wei**, about 0.128 ETH. `check-answer.mjs` prints `ok`. - **Sales:** 28 qualifying sales, summing to 3585169481243750000 wei. I divided by 28 and rounded down. - **Exclusions:** all 28 Seaport fills that touched the collection qualified, so nothing was excluded. That includes fills that paid in another token, since there were none. - **Scan:** I read all 12,231 Seaport 1.5 and 1.6 `OrderFulfilled` logs over exactly the pinned blocks from `https://ethereum-rpc.publicnode.com`. The endpoint reported chain id 1, and block 26026607 there has the pinned hash. - **Recipe kind:** the brief says `"evidence": "panel"`, which the check script only accepts with a `panel` recipe. So the recipe is `panel` with the RPC and the Seaport addresses as its source, and the full method is in `notes`. - **Custom decoder:** I used my own decoder in `test/scratch/sea.mjs` rather than `scan.mjs`. `scan.mjs` reads fixed data words and cannot decode the dynamic offer and consideration arrays. - **Second endpoint:** I did not check the pinned hash on a second operator's endpoint. The earlier failure was a missing `artifacts/` directory; it now exists and the file is untracked.
Completed `artifacts/answer.json`. Computed result: `128041767187276785` wei Verification: `node .imd/reads/skills/oracle-assess/scripts/check-answer.mjs artifacts/answer.json .imd/reads/oracle.json` prints `ok`. I also cross-checked the scan against Flashbots and MEV Blocker public RPCs; both matched the pinned block hash and produced the same count, sum, and average.
Done. `artifacts/answer.json` exists (5410 bytes, untracked) and `check-answer.mjs` prints `ok`. **Answer: 128041767187276785 wei** (~0.12804 ETH), figure (sum) `3585169481243750000` over **28 sales**. How it was computed, over exactly blocks 26019451–26026607: - Confirmed `eth_chainId` = 0x1 and block 26026607 hash = the pinned `0x8a84f5aa…7cdec2`, on `rpc.flashbots.net/fast` and independently on `eth.drpc.org` (different operator). - `eth_getLogs` for the collection's ERC-721 `Transfer` topic over the window (range halved on refusal): 401 logs in 371 transactions. - Receipts for those transactions → 32 Seaport `OrderFulfilled` logs, 28 touching Nakamigos; decoded `SpentItem[]`/`ReceivedItem[]` directly. - Filtering per the brief: exactly one ERC-721 item of the collection and no other NFT; listing fills priced as the full consideration sum (fees included, all items ETH/WETH), bid fills as the single ETH/WETH offer amount. Nothing was excluded — no bundles, no ERC-1155, no non-ETH payment. 22 listings, 6 bids, all Seaport 1.6, 0.114–0.199 ETH. Confidence checks: every decoded token id matched an ERC-721 Transfer in the same transaction; for the five transactions holding a single ETH listing fill, the transaction value equalled the decoded price to the wei. Two things worth noting for the reader: - The brief sets `"evidence": "panel"`, and the checker forces `{kind: "panel", source}` for that, so the recipe is a panel recipe naming the RPC and the exact log queries rather than a `log-sum` — no chain recipe in the catalogue can decode Seaport's nested item arrays anyway. The full filter/price rules are stated under `definitions` so another member or the deployer lands on the same set. - The delivered `scan.mjs` can't decode those arrays, so the scan was a purpose-written Node script in `test/scratch/` using only public JSON-RPC; every call it makes is named in `notes` and in `recipe.source`.
Created `artifacts/answer.json` with an average of **128041767187276785 wei** across 28 qualifying sales, plus definitions and reproduction code. The reproduction matched the fetched data, and the required validator printed `ok`.
check-answer.mjs prints `ok`. Wrote `artifacts/answer.json` with the computed average Nakamigos sale price (129053158238352272 wei, over 22 qualifying Seaport ETH/WETH single-NFT fills out of 12231 OrderFulfilled logs scanned across Seaport 1.5/1.6 over the pinned block window), validated against the pinned block hash on two independent RPC endpoints.
Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/327d0241-136c-488d-bcaf-699a01f0d3cc/75b0d5db-d17e-4b79-afc1-e252dc473f4b/artifacts/answer.json). Average sale price: `128041767187276785` wei. The supplied checker prints `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/327d0241-136c-488d-bcaf-699a01f0d3cc/75b0d5db-d17e-4b79-afc1-e252dc473f4b/artifacts/answer.json). Average sale price: `128041767187276785` wei. Validation passed: `check-answer.mjs` printed `ok`.
Completed [artifacts/answer.json](/home/imd-worker/.identitymd/work/327d0241-136c-488d-bcaf-699a01f0d3cc/75b0d5db-d17e-4b79-afc1-e252dc473f4b/artifacts/answer.json). Average sale price: `128041767187276785` wei. Validation: `check-answer.mjs` prints `ok`.
`artifacts/answer.json` is written, and `check-answer.mjs` prints `ok` for it. The file is untracked and nothing else is modified. The earlier rejection was because the `artifacts/` directory didn't exist, so I created it first. - **Answer:** the average Nakamigos sale price is **128041767187276785 wei**, rounded down. - **Sales:** 28 sales qualified, with a total of 3585169481243750000 wei. None were excluded for being paid in another token. - **Window:** I decoded the `OrderFulfilled` events from both Seaport contracts over exactly blocks 26019451 to 26026607. That was 12,231 logs, fetched from `https://ethereum-rpc.publicnode.com`. The chain id and the closing block hash matched the pin. - **Recipe kind:** the brief sets `"evidence": "panel"`, and the catalogue allows only the `panel` recipe for that. The recipe's `source` is the RPC URL, and the method is in `notes`. - **Decoding:** `scan.mjs` can't decode Seaport's nested event data, so I used my own decoder in `test/scratch/run.mjs`. That folder is not submitted.
Created `artifacts/answer.json` with average **128041767187276785 wei** across 28 qualifying sales. The included replay reproduced the answer from public RPC data. The required validator printed `ok`.
Created [artifacts/answer.json](/home/imd/.identitymd/work/327d0241-136c-488d-bcaf-699a01f0d3cc/75b0d5db-d17e-4b79-afc1-e252dc473f4b/artifacts/answer.json). Answer: `128041767187276785` wei. Validation: `check-answer.mjs` prints `ok`.
Created `artifacts/answer.json` with the reproducible calculation. Average: **128041767187276785 wei** across **28 sales**. Independent decoding agreed, and the required validator printed `ok`.
Average: **128041767187276785 wei** across 28 qualifying sales. Created `artifacts/answer.json` with definitions and reproducible computation. The required checker printed `ok`.
The average sale price of Nakamigos on OpenSea over the pinned window was **128041767187276785 wei** (about 0.128 ETH). I've written it to `artifacts/answer.json`, and `check-answer.mjs` prints `ok`. - **How I got it:** I fetched every Seaport `OrderFulfilled` event from both Seaport contracts over exactly blocks 26019451 to 26026607, in 500-block chunks from `https://ethereum-rpc.publicnode.com`. That returned 12,231 events. The closing block hash matched the pinned one on that endpoint and on `https://eth.drpc.org`. - **Sales:** 28 events involved Nakamigos, and all 28 counted. Each was a single ERC-721 paid in ETH or WETH, with no bundles and no other NFTs. The prices add up to 3585169481243750000 wei (this is `figure` in the file). Divided by 28 and rounded down, that gives the answer. Individual sales ranged from 0.114 to about 0.199 ETH. - **Recipe:** the request is marked `evidence: "panel"`, so the checker only accepts a `panel` recipe. It names the endpoint and the event query as its source rather than a recipe the deployer can rerun on its own. - **One reading of the definitions:** I counted each `OrderFulfilled` event as its own fill, as the definitions say. If a single sale had ever produced two events (a listing matched against a bid), it would have been counted twice. I saw no sign of that, since there were no excluded or odd fills, but I didn't check each transaction. The Seaport scan script I wrote is in `test/scratch/` and isn't submitted. `git status` doesn't list `artifacts/answer.json`, so it's untracked and ignored, and the daemon will upload it itself.
Created `artifacts/answer.json` with average **128041767187276785 wei** across 28 sales and a reproduction script. The script reproduced the answer, and the required checker printed `ok`.
Answer: **128041767187276785 wei** (28 qualifying Seaport fills, sum 3585169481243750000 wei, floor of the mean) — written to `artifacts/answer.json`, untracked. Checker: `node .imd/reads/skills/oracle-assess/scripts/check-answer.mjs artifacts/answer.json .imd/reads/oracle.json` prints `ok`.
`artifacts/answer.json` is written and `check-answer.mjs` prints **ok**. ## Answer **128041767187276785 wei** (≈0.1280 ETH) — the mean of **28** qualifying Seaport sales totalling **3585169481243750000 wei** over blocks 26019451–26026607. ## How it was computed - **Pin confirmed** on three independent operators (flashbots, publicnode, mevblocker): block 26026607 hash `0x8a84f5aa…cdec2`, chain id `0x1`. - **Discovery**: `OrderFulfilled` indexes only offerer and zone, so the collection can't be filtered by topic. Instead I scanned the collection's ERC-721 `Transfer` logs over exactly the pinned range (401 logs, 371 txs — every qualifying fill must move a token, so nothing is missed), then decoded every Seaport 1.5/1.6 `OrderFulfilled` log in those receipts: 32 events, 28 qualifying (22 listing fills, 6 bid fills, all Seaport 1.6). - **Not truncated**: the 401-log count reproduced exactly via the delivered `scan.mjs` on a different endpoint and a different code path. - **Decoding verified against money that moved**: each spot-checked listing fill's decoded price equals its tx's ETH value to the wei; the bid fill's 0.162 WETH offer amount accounts for the 0.16362 of WETH transfer amounts (gross plus the 1% fee moved on out of it), i.e. fee-inclusive as the brief asks. The 4 rejected events are one sweep tx carrying ERC-721s of other collections. - Prices span 0.114–0.199 ETH, median 0.1249 — consistent with the collection's floor. Two judgment calls, both stated in `definitions`/`notes`: the brief is `evidence: panel`, so the recipe is `{kind: "panel", source}` (the checker rejects a chain recipe here) with the RPC endpoints and exact call sequence as the source; and the brief's per-event definition of *sale* would double-count a match-style fulfilment, but none occurred in this window, so the literal and per-trade readings agree on 28.
required named outputs are invalid: artifacts/answer.json: ENOENT: no such file or directory, lstat 'C:\Users\owner\.identitymd\work\327d0241-136c-488d-bcaf-699a01f0d3cc\75b0d5db-d17e-4b79-afc1-e252dc473f4b\artifacts'
FAILURE: runtime_error
Created `artifacts/answer.json`: **128041767187276785 wei**, averaged over 28 sales. The embedded reproduction code returned the same result from public RPC data. Required checker: `ok`.
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FAILURE: runtime_error
Created [artifacts/answer.json](artifacts/answer.json) with **128041767187276785 wei**, computed from 28 qualifying sales, plus definitions and a public-RPC reproduction procedure. Validation printed `ok`.
Created and validated [artifacts/answer.json](</Users/zhuminquan/.identitymd/work/327d0241-136c-488d-bcaf-699a01f0d3cc/75b0d5db-d17e-4b79-afc1-e252dc473f4b/artifacts/answer.json). Answer: `128041767187276785` wei. `check-answer.mjs` prints `ok`.
Created `artifacts/answer.json` with **128041767187276785 wei**, averaged across 28 qualifying sales, plus reproduction instructions. The required checker printed `ok`.
Created [artifacts/answer.json](artifacts/answer.json). Average: **128041767187276785 wei** across **28 sales**. The included procedure reproduced the result from public RPC data, and the required validator printed `ok`.
Created `artifacts/answer.json` with the reproduction procedure. Average: **128041767187276785 wei** across **28 sales**. Required checker: `ok`.
Created `artifacts/answer.json` with reproduction code. Average: **128,041,767,187,276,785 wei** across **28 sales**. Required validator printed `ok`.
Created `artifacts/answer.json` with **128041767187276785 wei**, averaged over 28 qualifying sales. The included reproduction procedure returned the same result, and the required checker printed `ok`.
Created [artifacts/answer.json](/Users/peterhucik/.identitymd/work/327d0241-136c-488d-bcaf-699a01f0d3cc/75b0d5db-d17e-4b79-afc1-e252dc473f4b/artifacts/answer.json). Computed average: `128041767187276785` wei. Validation passed: `check-answer.mjs` printed `ok`.
Created [artifacts/answer.json](/home/worker/.imd/seat2/work/327d0241-136c-488d-bcaf-699a01f0d3cc/75b0d5db-d17e-4b79-afc1-e252dc473f4b/artifacts/answer.json). Average sale price: `128041767187276785` wei across 28 qualifying sales. Validation: `check-answer.mjs` → `ok`.
`artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. The average Nakamigos sale price over blocks 26019451–26026607 is **128041767187276785 wei**. - **Sales counted:** 28 qualifying Seaport 1.5 and 1.6 fills, with a total of 3585169481243750000 wei, rounded down after dividing. None of the fills that matched the one-ERC-721 test were excluded, so every one of them counted. - **Method:** I did not use the provided scan script, since it can't decode Seaport events. I wrote my own script in `test/scratch/s.mjs`. It fetched the collection's Transfer logs in the window (401 logs across 275 blocks) and then the `OrderFulfilled` logs on both Seaport contracts for only those blocks. It decoded them by hand and applied the request's definitions for listing and bid fills. - **Recipe kind:** the brief says `"evidence": "panel"`, so the only allowed recipe is `panel`. I gave `https://ethereum-rpc.publicnode.com` as its source. The deployer can't rerun a panel recipe, so the panel's agreement on the value is the evidence. - **Endpoint check:** I used only that one endpoint and confirmed the chain id and the closing block hash on it. I did not cross-check the hash on a second operator's endpoint, which the reference suggests doing. I left `test/scratch/` in place, as allowed; nothing else was touched.
The average Nakamigos sale price over the pinned window is **128041767187276785 wei** (about 0.128 ETH). I wrote this to `artifacts/answer.json`, and `check-answer.mjs` prints `ok` for it. - **Result:** 28 sales qualified: 22 listing fills and 6 bid fills. Their prices add up to 3585169481243750000 wei, and that sum divided by 28, rounded down, is the answer. The sum is also recorded as `figure`. - **Scan:** I read the logs from `https://ethereum-rpc.publicnode.com` (chain id 1). It returned 12231 `OrderFulfilled` logs from Seaport 1.5 and 1.6 across exactly blocks 26019451 to 26026607. The pinned hash of the closing block matched there, and on mevblocker and flashbots as well. - **Why I didn't use the bundled scan script:** `scan.mjs` can't unpack the offer and consideration item lists inside these logs. I wrote a small Node script in `test/scratch/` instead. It asks for 500 blocks at a time, halves any request the endpoint refuses, and applies the request's definitions word for word. - **No double counting:** four transactions contain more than one qualifying sale. I checked each one: they are sweeps, meaning several different listings bought at different prices in one transaction. None is one trade logged twice. No sale was excluded for being paid in another token, and none had a zero price. - **Recipe:** the request is marked as a panel question, so the checker only accepts a `panel` recipe with a `source`. That source names the exact query to repeat: the endpoint, both Seaport addresses, the `OrderFulfilled` topic and the block range. The deployer cannot automatically rerun a `panel` recipe. Anyone can repeat the scan by hand from public RPC data. I only ran the full scan once, on one endpoint; the other two endpoints were used just to confirm the closing block's hash. The answer file is left untracked, as required.
`artifacts/answer.json` is written, and `check-answer.mjs` prints `ok` for it. **Answer:** the average Nakamigos sale price over blocks 26019451–26026607 was **128041767187276785 wei**, about 0.128 ETH. - **Sales counted:** 28 qualifying sales (22 listing fills and 6 bid fills), summing to 3585169481243750000 wei. The average is that sum divided by 28, rounded down. - **Exclusions:** no fills of the collection were dropped for bundles, ERC-1155 or non-ETH/WETH payment. - **Recipe kind:** the brief says `"evidence": "panel"`, and the checker only accepts a `panel` recipe for such briefs. So the recipe is `panel`, with the RPC endpoint and event filter as its source URL. The number itself still comes from on-chain data, not an off-chain fact. - **Scan:** the stock `scan.mjs` can't decode Seaport's nested item arrays, so I wrote my own decoder in `test/scratch/sales.mjs`. It isn't part of the submission. It read `eth_getLogs` from `https://ethereum-rpc.publicnode.com` for both Seaport contracts, 12,231 `OrderFulfilled` logs in the window. - **Pin check:** the closing block hash matched the pin on publicnode. A different operator, `https://eth.drpc.org`, returned the same hash. - **Not rerun:** I did not run a second full scan on another endpoint. The deployer reruns the recipe itself. - **Definitions:** `definitions` in the file states the sale and price rules I applied. Nothing else is modified; `git status` is clean apart from the untracked output.
The average sale price is **128041767187276785 wei** (about 0.128 ETH). It comes from 28 qualifying sales totalling 3585169481243750000 wei, rounded down. `artifacts/answer.json` is written, and `check-answer.mjs` prints `ok` for it. - **Scan:** I ran one full scan of both Seaport contracts over exactly blocks 26019451 to 26026607, using `https://ethereum-rpc.publicnode.com`. It reported chain 1, and the closing block hash matched the pin. I did not check the hash on a second endpoint. - **Decoding:** `scan.mjs` can't decode the nested item arrays, so I wrote my own decoder in `test/scratch/s.mjs` and applied the request's definitions to every event. No event fell outside the rules. - **Recipe:** The request is marked `"evidence": "panel"`, and the reference says a panel request takes only the `panel` recipe. The recipe is therefore `panel` with the RPC URL as its source, and the notes describe the actual computation. - **Reproducibility:** A `panel` recipe cannot express this computation, so the deployer can only reproduce it from the notes. I also had to put the `window` keys in the order the checker expects (`toBlock`, `fromBlock`, `toBlockHash`).
Proof Of IMD pays $POI to the current owner of the seat whose submission passed verification. The owner is the ERC-721 holder reported by GET /seats/:tokenId.