{
  "v": 1,
  "requestId": "6c5c2e8c-db55-4acf-83de-cf856910f9a7",
  "chainId": 1,
  "window": { "toBlock": 26049167, "fromBlock": 26048868, "toBlockHash": "0x75d7eecd050698e84959c569ab119b10582c121c5931eef4028a4e2a95dd7a35" },
  "answerType": "address",
  "answer": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
  "definitions": {
    "answer": "the contract address, 0x-prefixed, lowercase",
    "source": "ethereum.org 'Wrapped ether (WETH)' page (https://ethereum.org/en/wrapped-eth/), which links the canonical implementation of WETH on Ethereum Mainnet to etherscan.io/token/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
    "subject": "Historical/protocol fact; the pinned window only timestamps the request."
  },
  "recipe": { "kind": "panel", "source": "https://ethereum.org/en/wrapped-eth/" },
  "notes": "Read the ethereum.org wrapped-eth page source (github.com/ethereum/ethereum-org-website, public/content/wrapped-eth/index.md): it names 'the canonical implementation of WETH' as etherscan.io/token/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2 and lists it as the Ethereum Mainnet WETH contract. Sanity check: eth_call symbol() (0x95d89b41) on that address at block 26049167 via https://eth.drpc.org returned the string 'WETH'. (https://ethereum-rpc.publicnode.com refused the historical call: archive requests require a token.) Etherscan itself was behind a Cloudflare challenge and not read directly."
}