MioDio Meridian parameter-drift check: diffs a declared intent against the exact unsigned tx or EIP-712 payload before you sign (~$0.005 USDC Exact on Base). Verdict match, drift or cannot_verify with a per-field diff and keccak of the bytes checked. Unknown calldata is cannot_verify, never match. A match is not a guarantee the intent was safe. Errors: 400 invalid_body or unsupported_chain, 402 payment required. MioDio x402 DeFi. Terms: https://workers.miodiollc.com/terms

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