{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the key type for parameters in a blockchain?","a":"The key types in blockchain mainly include the following: string (String), integer (Integer), hash (Hash), cryptographic algorithm (Cryptographic algorithm), digital asset (Digital asset), etc. These key types are used to represent various data elements  in blockchain, such as transactions, account information, smart contracts, etc. Different key types help ensure the security, transparency, and immutability of data in the blockchain network."}]}],"pr":"12f1a096b809fe6525e15de8433a4060e7ca13283a432ad1e8c1d3a32803201f"}