{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you handle withdrawals from sub-accounts in a blockchain?","a":"Signature Verification: The blockchain system will conduct a signature verification on the  withdrawal request to ensure the authenticity and integrity of the request. Typically, this process involves private keys and public keys."}]}],"pr":"d91c47ff7c248dc72b65c36b893d0ec25e5d086ece28fc2a610b5ab9914b4700"}