{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to debug programs on the blockchain?","a":"Learn the basic concepts and technology of the blockchain: First, understand the basic principles, technical architecture, and  mainstream blockchain platforms such as Bitcoin, Ethereum, and Changan Chain."}]}],"pr":"fd9fb536e9fb59221173d340f3879e56a576c763dcabe67025602021ec786e76"}