{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of a blockchain miner?","a":"Validate and add transactions: Miners validate the effectiveness of transactions by solving mathematical problems,  and add verified transactions to the blockchain."}]}],"pr":"1dff7b2882fc54f8c0abf5c29f571809756e26a02ceb7e64d360e8096a717ae3"}