{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do certificates work in blockchain?","a":"Smart contracts: Certificates can be used to secure and validate smart contracts deployed on the blockchain,  ensuring that only authorized users can execute these contracts and preventing unauthorized access or manipulation."}]}],"pr":"e67267511149013098b0cb77b237d4d9db109407dc5e3cd3a7f8a5352c126be3"}