{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the differences between on-chain and off-chain expansion in blockchain?","a":"Data storage and transparency: On-chain expansion means that data and transaction records are publicly transparent, and all participants can view and verify them. Off-chain expansion means that data and transaction records are not stored on public accessible services, relatively closed,  and only authorized participants can view and participate."}]}],"pr":"73327087f580e7a6c4a92565687aea7abe3df85cca7a8b72d410be1f8bc5b7b8"}