{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What procedures must be followed for code upgrades in blockchain?","a":"Writing the upgrade plan: Based on the review results, a detailed upgrade  plan is developed, including the steps required during the upgrade process, the scope involved, and the like."}]}],"pr":"3cced247ca1a7df2e8567d5d03391c4e61b9e9402ece9300ead18c09f81d8394"}