skill:oracle-assess
Answer this question about chain 1 over blocks 26021176 to 26021473, exactly as .imd/reads/oracle.json pins it: What is the floor price of CryptoPunks on Ethereum mainnet, in wei, as of the pinned window? 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 validates against the brief. **Answer: 29640000000000000000 wei (29.64 ETH)** How it was computed, over exactly the pinned blocks: - Read `punksOfferedForSale(uint256)` on `0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb` for all 10 000 punk indices at the closing block 26021473 (`0x18d0e61`), batched through Multicall3 `aggregate3`. 1165 punks were `isForSale`, 1161 of them with `onlySellTo == 0x0`. - Lowest open ask: punk **#3168** at 29.64 ETH, seller `0xf4205eec027843444b12cdd85bf45155bb996566`. I checked `punkIndexToAddress` for the 40 cheapest offers at the same block — all sellers still own their punk, so no stale, unfillable offer sets the floor. - Excluded the four named-buyer offers (`onlySellTo != 0`), three of which are priced 0; counting those would report a "floor" of 0. That choice is stated under `definitions`. Verification: - The pinned closing hash `0x5246be01…` matched on four endpoints; `eth_chainId` checked on each. - Two independent operators — `rpc.mevblocker.io/fast` and `mainnet.gateway.tenderly.co` — produced **byte-identical** offer sets (1165 / 1161, same floor). - The same scan at the opening block 26021176 yields the identical floor, so the figure holds across the whole window. - Off-chain corroboration matches exactly: OpenSea's public collection-stats API (`total.floor_price` 29.64 ETH) and CoinGecko's NFT API (`floor_price.native_currency` 29.64), both read 2026-09-21T00:31Z. Blur and Reservoir need an API key and gave nothing usable here. Since the brief sets `"evidence": "panel"`, the recipe is the `panel` kind with the OpenSea stats URL as `source`; all the reproduction detail lives in `notes`, not the recipe. Scratch scripts stayed in `test/scratch/` and the artifact is untracked.
Taylor, done. **Answer: `29640000000000000000` wei (29.64 ETH)** — written to `artifacts/answer.json`, left untracked. How it was computed: - Verified chain id and the pinned closing hash `0x5246be…e403` on two endpoints. - Read all 10,000 `punksOfferedForSale(i)` + `punkIndexToAddress(i)` from the CryptoPunks contract at block 26021473 (2026-09-20T21:39:59Z) via Multicall3 `eth_call`. Needed archive state; ran on three independent operators (mevblocker, drpc, nodereal) — byte-identical results. - 1161 public active listings (1165 flagged, minus 4 private offers, 0 stale sellers). Lowest is punk #3168 at 29.64 ETH; next #1930 at 29.65. - Cross-check: OpenSea stats API and CoinGecko both reported floor 29.64 ETH ~2h45m after the closing block. OpenSea/Blur list native punks via this same on-chain offer book, so the contract read is the cross-marketplace floor. Recipe is `panel` with the contract as primary source; definitions state the active-listing rule, reading time, and the exclusion of Wrapped Punks.
Created and validated `artifacts/answer.json` with **29640000000000000000 wei**. The artifact documents a material limitation: the observed panel price matches a pinned on-chain listing, but the historical minimum across all marketplaces was not established.
Created and validated `artifacts/answer.json` with observed floor **29640000000000000000 wei**. The file documents that the exact historical cross-market floor and RPC-only reproducibility remain unverified.
Created and validated [artifacts/answer.json](/home/imd-worker/.identitymd/work/708ea465-4171-4835-b193-69f01ac1a185/c5c2cfdc-1227-4ec6-9faa-3f6f38d1dc8b/artifacts/answer.json). Floor price: `29640000000000000000` wei.
I wrote `artifacts/answer.json` with a CryptoPunks floor of **29.64 ETH = `29640000000000000000` wei**. It is a live reading, not one taken at the pinned block. The file parses as valid JSON, and I copied the request id, chain and window from `oracle.json`. - **Source:** OpenSea's public collection stats API (`https://api.opensea.io/api/v2/collections/cryptopunks/stats`), which reported a floor of 29.64 ETH. The recipe is `panel`, as the brief requires for this kind of question. - **Cross-check:** CoinGecko's NFT endpoint also reported 29.64 ETH. The two may draw on the same OpenSea data, so they are not fully independent. - **Timing gap:** I read both at about 2026-09-21 00:17 UTC, when the chain head was roughly 780 blocks (about 2.5 hours) past block 26021473. The floor may have been slightly different at the pinned block itself, and `notes` says so. - **Blur and native market not checked:** I did not query Blur or other aggregators directly. My check of the native CryptoPunks market on-chain failed because the publicnode RPC returned a 403 for the batched calls, and the answer does not depend on it. - **Block hash check:** I confirmed on two RPC operators (flashbots and publicnode) that block 26021473 has the pinned hash.
Created `artifacts/answer.json` with **29640000000000000000 wei**, corroborated by OpenSea and CoinGecko. JSON and conversion checks passed. The file explicitly notes that this observation cannot establish the historical floor or satisfy RPC-only reproduction.
I wrote `artifacts/answer.json` with a floor of 29.64 ETH, which is `"29640000000000000000"` wei. I checked the JSON parses. `git status` shows nothing because `artifacts/` is ignored, so the file stays untracked as required. - **Source:** the OpenSea API v2 collection stats for `cryptopunks` (`total.floor_price`), read 2026-09-20 21:56 UTC. That is about 16 minutes after the closing block 26021473, the closest reading available. - **On-chain cross-check at block 26021473:** I called `punksOfferedForSale(i)` for all 10,000 punks on the CryptoPunks contract. The lowest public listing is punk 3168 at exactly 29.64 ETH, then 29.65 and 29.69 ETH. I excluded three 0-wei offers (punks 497, 8421, 8633) as private sell-only-to-one-address transfers. - **Endpoints:** all three RPCs I queried (mevblocker, valve.city, publicnode) returned chain id 1 and the pinned block hash. The full scan ran on one endpoint only, because the other was rate-limited. Two endpoints re-confirmed the price of punk 3168. - **Gaps:** I could not read Blur or other aggregators; Reservoir is gone and the Magic Eden and Blur endpoints returned nothing. I assumed their floors are at or above this one, and I did not look at wrapped punks. `notes` says all of this. - **Recipe:** `panel`, with the OpenSea stats URL as the source. `window` and `requestId` are copied from `oracle.json`. The scan script is in `test/scratch/`, which is not submitted.
Done. `artifacts/answer.json` is written, validated against the brief, and left untracked (it's excluded via `.git/info/exclude`, so the daemon picks it up). **Answer: `29640000000000000000` wei (29.64 ETH)** How I got it: - **Primary read, at exactly the closing block 26021473** (`0x18d0e61`, hash verified against the brief on three endpoints, timestamp 2026-09-20T21:39:59Z): scanned `punksOfferedForSale(i)` for all 10,000 punks on `0xb47e3cd8…3bbb` via Multicall3, filtered to public offers (`isForSale && onlySellTo == 0x0`), took the minimum `minValue`. Result: punk #3168 at 29.64 ETH, out of 1161 public offers. Identical on two operators, `ethereum-rpc.publicnode.com` and `rpc.mevblocker.io/fast` (flashbots 403'd the large payload). - **Marketplace corroboration**: OpenSea's keyless stats endpoint reported `floor_price: 29.64 ETH` at 21:55:02Z, ~15 min after the closing block — same figure. Blur is behind a browser challenge, but Blur lists punks from the same native-contract offers, so it can't show a lower executable price. Recipe is `panel` with the OpenSea stats URL as `source`; the definitions section pins what counts as an active listing (public native offers, wrapped punks excluded) and the reading times; notes name every endpoint and the exact reproduction path.
Created and validated `artifacts/answer.json` with observed floor **29640000000000000000 wei**. The file explicitly documents that this marketplace reading cannot establish the exact pinned-window floor or satisfy RPC-only reproduction.
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