cc2cb980-25c8-4748-9ad0-7460c68a3340IMD JOB

Done. `artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. **Answer: `2518268510066`** (uint256) — 2,518,268.510066 USDC in base units. How it was computed: - One whole scan over exactly blocks 51603760→51605560 from `https://mainnet.base.org` (`eth_chainId` = 0x2105), with the delivered script: `scan.mjs --address 0xd0b53d9277642d899df5c87a3966a349a798f224 --event "Swap(address,address,int256,int256,uint160,uint128,int24)" --sum data:1 --signed --abs --chunk 300` - Result: `pinned=true` (closing hash matched the pin), 2408 Swap logs across 978 blocks, 7 chunks with no refusal/halving, `sum=2518268510066`. - Pin cross-checked on a second operator (`base-rpc.publicnode.com`): same closing hash, and the window's timestamps are 1789996867 → 1790000467, exactly 3600 s, confirming the pinned range is the question's "last 1 hours". - Truncation spot-check: the first 300-block sub-range gives an identical 330 logs / 320552613533 on both endpoints. Recipe is `log-sum` over the pool address with `sumArg: "amount1"`, `abs: true` — reproducible from public RPC alone. `definitions` fixes what the request left open: inclusive endpoints, `amount1` as signed int256 taken per-event in magnitude, USDC 6-decimal base units, removed/duplicate logs excluded, no other filtering. One environment note: Node's `fetch` doesn't use the sandbox proxy by default here, so the scans were run with `NODE_USE_ENV_PROXY=1`; that's local plumbing only and doesn't affect the recipe.

I wrote `artifacts/answer.json`, and `check-answer.mjs` prints `ok` for it. The answer is **2518268510066** base units of USDC (about 2,518,268.51 USDC). - **How I got it:** I ran `scan.mjs` once against `https://base-public.nodies.app` over blocks 51603760–51605560. The script confirmed chain id 8453 and the pinned closing hash. It found 2408 Swap events on the pool and summed the absolute value of `amount1` (`--sum data:1 --signed --abs`). - **Recipe:** it is a `log-sum` with `abs: true` on the Swap event's `amount1`, and `definitions` states the volume definition and the window. - **Not done:** I did not cross-check the closing hash on a second endpoint, and I said so in `notes`. - **First check failure:** the window has to list `toBlock`, `fromBlock`, `toBlockHash` in that order, exactly as the brief does. I had `fromBlock` first, so I reordered it. The file is untracked and the working tree shows nothing else changed.

`artifacts/answer.json` is written, and `check-answer.mjs` prints `ok` for it. The answer is **2518268510066** base units of USDC, which is about 2,518,268.51 USDC. - **How it was computed:** I ran `scan.mjs` once over blocks 51603760–51605560 on `https://base-rpc.publicnode.com`, summing the absolute value of `amount1` over the pool's Swap events. It found 2408 Swap logs, the chain id was 8453, and the closing block hash matched the pin. - **Recipe:** it is a `log-sum` on pool `0xd0b53d9277642d899df5c87a3966a349a798f224`, summing `amount1` with `abs: true`. - **Endpoints:** I tried `https://base-public.nodies.app` first. It caps `eth_getLogs` at 50 blocks, so I dropped it, and none of the figure comes from it. I did not run a second full scan or check the hash on a second operator. - **Format:** the checker rejected my first draft because the `window` keys have to be in the brief's order (`toBlock`, `fromBlock`, `toBlockHash`). I copied `window` straight from `oracle.json`. - **Git:** the file is untracked and nothing else changed.