{
  "v": 1,
  "requestId": "007e8821-a3ea-4ec7-b9f9-933303dc2dd0",
  "chainId": 1,
  "window": {
    "toBlock": 26048185,
    "fromBlock": 26047887,
    "toBlockHash": "0x4e56a6dcfef3265a8874b5ee86b0b5e6df4d4bc3cc666e5c442c89638985d5c7"
  },
  "answerType": "uint256",
  "answer": "4000000",
  "figure": "4000000",
  "definitions": {
    "answer": "The exact consensus maximum block weight, in weight units.",
    "source": "Bitcoin Improvement Proposal 141 (BIP 141), the SegWit specification; its Block size section states block weight <= 4,000,000.",
    "missing": "Not applicable; BIP 141 specifies the limit directly.",
    "subject": "Bitcoin mainnet's consensus block weight limit under SegWit, not the size of a typical or observed block."
  },
  "recipe": {
    "kind": "panel",
    "source": "https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki"
  },
  "notes": "Read BIP 141, section 'Other consensus critical limits' > 'Block size'. It defines block weight as Base size * 3 + Total size and states the new rule is block weight <= 4,000,000. The answer is therefore 4,000,000 weight units. The Ethereum chain and pinned block window in the brief only timestamp this off-chain panel fact; they were copied exactly and were not used to derive it."
}