{
  "v": 1,
  "requestId": "34beae37-4051-4b77-80fe-50435a5c0d6b",
  "chainId": 1,
  "window": {
    "toBlock": 26048184,
    "fromBlock": 26047886,
    "toBlockHash": "0xd02eeba314450d64ca2c9cd486efa4938ecbf71db6d9343ad84668f01fc9a028"
  },
  "answerType": "uint256",
  "answer": "170",
  "figure": "170",
  "definitions": {
    "answer": "The Bitcoin mainnet block height, represented as an unsigned decimal integer.",
    "event": "The earliest documented non-coinbase Bitcoin payment attributed to Satoshi Nakamoto as sender and Hal Finney as recipient; this excludes mining-reward coinbase transactions.",
    "attribution": "The human identities are historical attribution: the Bitcoin Wiki identifies Finney as the recipient of the first transaction from Satoshi Nakamoto.",
    "source": "Sources read: Bitcoin Wiki's Hal Finney page for the attribution and Blockstream Explorer's public transaction-status record for the height.",
    "missing": "Not applicable: the cited public sources establish the requested historical height.",
    "subject": "The subject is Bitcoin mainnet history; the pinned Ethereum chain 1 window is a timestamping pin only and is not a source of the answer.",
    "height evidence": "Blockstream Explorer's status record for transaction f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16 reports block_height 170."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://blockstream.info/api/tx/f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16/status"
  },
  "notes": "Read Bitcoin Wiki (https://en.bitcoin.it/wiki/Hal_Finney) for the Satoshi-to-Finney attribution, then read the Blockstream Explorer public API source in recipe; its confirmed transaction status reports block_height 170. The brief classifies this as panel evidence, so no Ethereum RPC scan is applicable; the supplied chain/window were copied verbatim."
}