{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to revoke a blockchain upgrade proposal?","a":"During the submission stage, if the proposer finds that the proposal content is incorrect or does not meet the requirements, they can withdraw the proposal through the governance mechanism of  the blockchain system. The specific operation methods vary depending on the blockchain system, and it generally needs to be done within a specified time."}]}],"pr":"bb3957a872185e8929d5b33dd274a6ab44f7cf3e80f0f53dabad92824db35f19"}