{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is data stored and verified in a blockchain?","a":"After receiving the data, the node will check if the format and specification of  the data comply with the requirements of the blockchain."}]}],"pr":"f221d3d314c8f79ac98b04825537bb2e619474c306c7412ad402cfb1b366ab4c"}