{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is a concurrent tree in a blockchain?","a":"Non-blocking: The  concurrent tree allows nodes to handle other requests while processing the current request, thereby improving overall performance."}]}],"pr":"5c770e0f8d041084b657c1fa72b5056ac00f018285c3746a661bcf505e8f5b1c"}