{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The lifecycle of a transaction in a blockchain consists of which stages?","a":"Signature Encryption: To ensure the  security and validity of the transaction, the creator needs to encrypt the transaction information with a signature. These signatures are used to indicate that the flow of funds in the transaction has been authorized by the owner."}]}],"pr":"1a0354f261beff29cf2ccf310fc61f6f06f047cc99abca0b93d8b5f2c54d317b"}