{
  "v": 1,
  "requestId": "9b8a28fc-53ae-4d1f-860c-da0dd98d9200",
  "chainId": 1,
  "window": {
    "toBlock": 26049164,
    "fromBlock": 26048865,
    "toBlockHash": "0xed9429f3f55488921ccb2cf50a2b2305c0161234d455b8f6173c10021f5df346"
  },
  "answerType": "uint256",
  "answer": "1920000",
  "figure": "1920000",
  "definitions": {
    "answer": "the block number, as a number",
    "source": "Answer from a reputable public source actually read: the official Ethereum fork timeline at https://ethereum.org/ethereum-forks/.",
    "missing": "If the fact could not be established from a source, it would be reported rather than guessed.",
    "subject": "The question is about Ethereum's protocol and history. The pinned chain and window timestamp this answer; the answer is a historical protocol fact, not a reading taken at the pinned block.",
    "activation": "The activation block is the block number listed for the DAO fork in the official Ethereum fork timeline."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://ethereum.org/ethereum-forks/"
  },
  "notes": "Read the official Ethereum fork timeline. Its DAO fork entry states Jul 20, 2016 and Block number 1,920,000. The pinned range 26048865-26049164 and closing hash are copied exactly from the brief; per the brief's subject definition, that range timestamps the request and is not used to derive this historical fact."
}