{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"When can the blockchain upgrade proposal be rescinded?","a":"The upgrade proposal has not been incorporated into the  blockchain: Before the upgrade proposal is incorporated into the blockchain, developers or relevant parties can propose modifications or rescind the proposal. However, once the upgrade proposal has been incorporated into the block, it becomes difficult to modify or rescind it."}]}],"pr":"62c347b44bcb7d25ce10108a80fd4a9d399f708d8eef6c82e7e143b432bda23a"}