{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the limitations on the number of nodes in a blockchain?","a":"Network bandwidth: Communication between nodes requires a certain amount of network bandwidth. If  network bandwidth is limited, it may affect the increase in the number of nodes."}]}],"pr":"b384cea65bf67a26f67d47ff44026bf34e8733d007957fbe703b9ade89487e2b"}