{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In a blockchain, are the uploading and instantiation of smart contracts subject to permission restrictions?","a":"Contract permissions: The creation and deployment of smart contracts require certain permissions to  ensure that only authorized developers can access and modify the contract code. This can be achieved by using cryptographic signatures, permission control, and access control."}]}],"pr":"9a1110f85597784928a42abd2f51a12af9dcef769e1ef80c0e6ee4593ca7f092"}