{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the indexing technologies in the blockchain?","a":"Merkle Tree: Merkle Tree is a binary tree data structure used for efficiently storing and managing data in blockchain. It can compress a large amount of data into a small tree, enabling fast searching, verification,  and synchronization. In blockchain, Merkle Tree is commonly used for storing and validating transaction data, such as the UTXO (Unspent Transaction Output) Merkle Tree in Bitcoin."}]}],"pr":"d6147f8af9f3fd58ed55279ada8d938cec04def5606f84aecea468e82d7c2175"}