{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the common types of system variables and Sysvar in the blockchain?","a":"The system variables (Sysvar) in blockchain mainly refer to a class of variables used to record and control the running state of the blockchain system in the blockchain network. Common types of system variables include:\\n\\n1. Consensus algorithm-related variables: These variables are used to control the operation of consensus algorithms, such as the number of nodes, block generation speed, etc.\\n\\n2. Account-related variables: Including account balance, account  permissions, and other information.\\n\\n3. Transaction-related variables: Including transaction volume, transaction speed, transaction fees, etc.\\n\\n4. Blockchain network-related variables: Including block height, network connection status, block propagation speed, etc."}]}],"pr":"8a3857ceb2d7ce852952031de2618866bd871253eaf3401de4d0d3f448cb8a83"}