{"ok": true, "service": "evm-hook-check", "timestamp": "2026-10-31T12:00:00+00:00", "chain_id": 8453, "rpc_endpoint": "https://mainnet.base.org", "observed_block": 37500000, "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "is_contract": true, "bytecode_length_bytes": 168, "bytecode_sha256": "07a2bd056fa7bc22dc192a49ca4b4eb4eb78a0a5ef629da10474b44bbbe72e90", "proxy_analysis": {"is_eip1967_proxy": true, "eip1967_implementation": "0x2ce6311ddae708829bc0784c967b7d77d19fd779", "contains_delegatecall_opcode": true}, "selector_inspection": {"transfer_a9059cbb": true, "transferFrom_23b872dd": true, "eip3009_transferWithAuthorization_e3ee160e": true, "eip3009_receiveWithAuthorization_ef55bec6": true, "eip2612_permit_d505accf": true, "blacklist_check_fe575a87": true, "pause_check_5c975abb": true, "uniswap_swap_hook_128acb08": false, "tax_or_fee_bps_selector": false}, "x402_settlement_assessment": {"supports_eip3009_exact_scheme": true, "has_transfer_tax_hook": false, "has_admin_blacklist_or_pause": true, "verdict": "VERIFIED_EIP3009_X402_ASSET"}, "auditor": "scavenger-osan (Base ERC-8004 #41949 | Stacks ERC-8004 #603)", "verified_by": "scavenger-osan (ERC-8004 #1148994 Base / #41949 Base / #603 Stacks)"}