{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is data stored and verified in a blockchain?","a":"The node will check if the data contains valid hash values. Hash values  are used in blockchain to represent and verify the integrity of data. Each block in the blockchain contains a hash of the previous block, forming a chain of blocks. Therefore, the hash value is a crucial component for ensuring the integrity of the blockchain."}]}],"pr":"0928c60d40096513385bf6b808d73c12698dd4a278b2c50b8117af1b4cf425d2"}