{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure data privacy and security?","a":"Immutability:  Once data is recorded on the blockchain, it cannot be altered or deleted. This feature ensures the integrity of the data and prevents unauthorized modifications."}]}],"pr":"912c2abd2fea4d9757a790dfd245e3841fd6698b8beec362e66fec3236386515"}