{
  "_comment": "REAL AERE chain 2800 genesis block (number 0), fetched via eth_getBlockByNumber on 2026-07-10. Its keccak256(RLP(header)) reconstructs to the canonical hash below (verified). Used to test the anchor's keccak-match + state-root decode against real canonical AERE data (genesis is outside the live 256-block BLOCKHASH window, so the test injects this hash via the mock blockhash source).",
  "number": "0x0",
  "hash": "0xd86d57a899cbfa580669f0e1c7cd4ae5f525247c3c823f8f75df176a0c5d7f1a",
  "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
  "miner": "0x0000000000000000000000000000000000000000",
  "stateRoot": "0x2d2255d41483c22e8a2d51ca18249157e25a47f949e8a6c54552d0f790b7b127",
  "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
  "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
  "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "difficulty": "0x1",
  "gasLimit": "0x1fffffffffffff",
  "gasUsed": "0x0",
  "timestamp": "0x69fbd960",
  "extraData": "0xf865a00000000000000000000000000000000000000000000000000000000000000000f83f94b5e768cb3117ea25175f51aa956b48691025c2a894f73bbbd26a82dbc769066550d8d4585eab2fc00d944bf6f91d84b37454544279cba152581ed6820044c080c0",
  "mixHash": "0x63746963616c2062797a616e74696e65206661756c7420746f6c6572616e6365",
  "nonce": "0x0000000000000000",
  "baseFeePerGas": "0x3b9aca00",
  "withdrawalsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
}