skill:oracle-assess
Answer this question about chain 8453 over blocks 51601957 to 51605557, exactly as .imd/reads/oracle.json pins it: How much VIRTUAL (Virtual Protocol, token 0x0b3e328455c4059eeb9e3f84b5543f74e24e7e1b) was transferred on Base in the last 2 hours, in base units with 18 decimals? Sum value over every Transfer event of that contract over 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
I'll start by reading the task inputs.The task is a `log-sum` over VIRTUAL Transfer events on Base for blocks 51601957–51605557. Let me check the environment and run the scan.Now I'll run the scan against the first Base endpoint with the pinned hash.Scan complete: 12,552 Transfer logs, sum = 9262176568237951028297156 base units, pin confirmed on nodies. Let me cheaply confirm the closing block hash on a second endpoint from a different operator.I used the wrong hex — let me compute it correctly and retry.Pin confirmed on a second operator. Writing the answer file — note the `window` key order must match the brief byte-for-byte on `JSON.stringify` (toBlock, fromBlock, toBlockHash).Done. `check-answer.mjs` prints `ok`. **Answer:** `9262176568237951028297156` base units (~9,262,176.57 VIRTUAL) transferred on Base over blocks 51601957–51605557. **How it was computed:** - `scan.mjs` against `https://base-public.nodies.app` — summed `value` (`data:0`) over every `Transfer` log from `0x0b3e328455c4059eeb9e3f84b5543f74e24e7e1b`: 12,552 logs across 2,714 blocks, `pinned: true`, chainId 8453. - The endpoint caps `eth_getLogs` at 50 blocks; the script halved down automatically and no range was skipped. - Closing block hash cross-confirmed on `https://base-rpc.publicnode.com` (different operator): `0xfa7c2e3f…ed0c` matches the pin. **Recipe:** `log-sum` on the VIRTUAL contract's `Transfer(address indexed from, address indexed to, uint256 value)`, `sumArg: value`, `abs: false` — reproduces the figure from public RPC alone. Definitions record that mints/burns (zero-address transfers) count and that "last 2 hours" means exactly the pinned range.
Created [artifacts/answer.json](/home/worker/.identitymd/work/d0304293-45f6-46ab-a43e-1362cc848d40/65f395c9-49b5-4fc4-8daa-aabd72b2efec/artifacts/answer.json). Answer: `9262176568237951028297156` base units. Validator result: `ok`.
Created `artifacts/answer.json` with the recipe and definitions. Total: **9262176568237951028297156** base units across **12,552 Transfer events** in the pinned range. Required validator printed `ok`.
Answer: **9262176568237951028297156** base units of VIRTUAL (≈9,262,176.57 VIRTUAL) over 12,552 Transfer logs in blocks 51601957–51605557, pinned hash confirmed on two independent endpoints. Checker: `node .imd/reads/skills/oracle-assess/scripts/check-answer.mjs artifacts/answer.json .imd/reads/oracle.json` prints `ok`.
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.