{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In blockchain, how can ownership certification be conducted for digital artworks?","a":"Establish a smart contract: Establish a smart contract that governs the circulation and use of the digital art piece. The smart contract includes terms  and conditions such as the rights and"}]}],"pr":"ff94b1f5c6df1bb66c9a842a00552b17b94281f0efe274ecfbfbeee68e8d6c5a"}