{"v":1,"requestId":"7b0fe6b6-6d89-404d-9518-0a1065beba3d","chainId":1,"window":{"toBlock":26049165,"fromBlock":26048866,"toBlockHash":"0x20426a3e4b845b87cd43d6683e11e5637765c8319cd7126a02222ae16a8c65cd"},"answerType":"uint256","answer":"9069000","figure":"9069000","definitions":{"answer":"the block number, as a number","source":"EIP-1679 / ethereum.org history: Istanbul activated at mainnet block 9069000 (Dec 8 2019)"},"recipe":{"kind":"panel","source":"https://eips.ethereum.org/EIPS/eip-1679"},"notes":"Historical protocol fact from EIP-1679 (Istanbul meta); no chain scan needed. Not re-fetched in this run; recalled from that source."}