{
  "v": 1,
  "requestId": "0919730e-d4ee-4ca0-ac45-54188a4b68bc",
  "chainId": 1,
  "window": {
    "toBlock": 26048184,
    "fromBlock": 26047886,
    "toBlockHash": "0xd02eeba314450d64ca2c9cd486efa4938ecbf71db6d9343ad84668f01fc9a028"
  },
  "answerType": "uint256",
  "answer": "210000",
  "figure": "210000",
  "definitions": {
    "answer": "Bitcoin mainnet block height at which the first block subsidy halving took effect.",
    "source": "The Bitcoin.org Halving Countdown page is the reputable public source; its halving history lists the first halving at block 210,000.",
    "missing": "The fact is established by the named source, so it is not reported as missing.",
    "subject": "Bitcoin network history; the pinned Ethereum chain and block window only timestamp this panel-evidence request.",
    "window": "The exact pinned Ethereum block range is copied unchanged and is not used as Bitcoin data."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://bitcoin.org/en/halving"
  },
  "notes": "Read the Bitcoin.org Halving Countdown page. Its Halving history table lists First halving, 2012-11-28, block 210,000, with a new reward of 25 BTC."
}