{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology promote the development of digital currencies?","a":"Immutability: Once data is recorded on the blockchain, it cannot be altered or deleted, providing a reliable and tamper-proof record  of transactions."}]}],"pr":"74597a4fba2f5e073a37dba9a967b9eb993ff7ff8ef71166ae40dfd5fa7f165c"}