{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What specific operation steps were taken when creating a compressed NFT collection tree?","a":"Determine the tree structure: First, determine the basic structure of the compressed NFT collection tree, such as binary  tree, B-tree, B+ tree, etc. Choose the appropriate tree structure according to the actual requirements and data characteristics."}]}],"pr":"8f817626fceb2b7e25b095becfa2fdecf122a2fdbea747111aa6b669a93c7bde"}