{
  "v": 1,
  "requestId": "418f06db-13f5-430e-84d6-ee55a9627f2f",
  "chainId": 1,
  "window": {
    "toBlock": 26048185,
    "fromBlock": 26047887,
    "toBlockHash": "0x4e56a6dcfef3265a8874b5ee86b0b5e6df4d4bc3cc666e5c442c89638985d5c7"
  },
  "answerType": "uint256",
  "answer": "2020",
  "definitions": {
    "answer": "The four-digit calendar year in UTC, encoded as the uint256 decimal string 2020.",
    "source": "Bitcoin.org's Bitcoin Halving Countdown, https://bitcoin.org/en/halving, whose halving-history table lists the third halving as 2020-05-11 at block 630,000.",
    "missing": "The cited source directly establishes the event date, so no missing-data fallback was used.",
    "subject": "This is Bitcoin network history; the pinned Ethereum chain and window are retained as request metadata and are not used to infer the answer."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://bitcoin.org/en/halving"
  },
  "notes": "Read the cited Bitcoin.org halving-history table. It gives the third Bitcoin halving date as 2020-05-11 UTC, whose four-digit UTC calendar year is 2020. This is a panel-evidence request; its pinned Ethereum block window is copied exactly and only timestamps the request, as the brief specifies."
}