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Before signing:
  1. Verify the exact origin is https://cooket.fun.
  2. Confirm Arc Testnet and chain ID 5042002.
  3. Confirm the intended wallet address and transaction target.
  4. Distinguish 18-decimal native USDC from 6-decimal canonical ERC-20 USDC.
  5. Review gross input, fee, expected output, minimum output, deadline, and any refund.
  6. For ERC-20 approvals, verify the spender is the token’s canonical curve or the manifest-derived SwapRouter and that the amount is expected.
  7. Preserve submitted hashes and inspect them on ArcScan.
Cooket uses external user-controlled wallets. The API does not need your private key, seed phrase, wallet export, or approval signature. Never provide those to support or paste them into a bug report. Use a test wallet and conservative testnet balances when interacting with unfamiliar tokens. Do not assume token metadata, a social link, or a visible market makes a launch trustworthy.