{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Transactions in a blockchain require information such as:","a":"Transaction signature: using digital signature technology, one party signs the transaction data to verify the authenticity of the transaction and protect  against fraud."}]}],"pr":"1a3aae248c0b7cac0d9b0cd4df74cd74eeb93532c1d80b76484034713ae946f7"}