{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the similarities and differences between the contract registration request proposal and the batch contract registration request proposal in the blockchain?","a":"Both involve encryption technology and digital signatures to ensure the security and integrity  of the data transmitted between nodes in the blockchain network."}]}],"pr":"1bc35cd66479d46fffc86647a89848afa8895515a57ced079c0b7f03564966bb"}