{
  "v": 1,
  "requestId": "76cc2add-46ba-4752-8716-864bac81c20b",
  "chainId": 1,
  "window": {
    "toBlock": 26048185,
    "fromBlock": 26047887,
    "toBlockHash": "0x4e56a6dcfef3265a8874b5ee86b0b5e6df4d4bc3cc666e5c442c89638985d5c7"
  },
  "answerType": "uint256",
  "answer": "2017",
  "figure": "2017",
  "definitions": {
    "answer": "The four-digit calendar year in UTC, encoded as a decimal number.",
    "subject": "SegWit activation on the Bitcoin mainnet; the Ethereum request window only timestamps this request and is not evidence for the answer.",
    "source": "Bitcoin Core Onboarding, Testing P2P changes: it identifies SegWit's activation at block 481824 in August 2017."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://bitcoincore.academy/testing-p2p-changes.html"
  },
  "notes": "Read Bitcoin Core Onboarding's “Testing P2P changes” page. It states SegWit activated at block 481,824 in August 2017. The requested calendar year is therefore 2017. This is an off-chain historical fact per the pinned panel-evidence brief; its Ethereum block window supplies no evidence for the answer."
}