{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the Commit message return the Merkle root hash in blockchain?","a":"First, understand the basic concept of a Merkle tree. A Merkle tree is a binary tree structure where each node contains two child nodes until the leaf nodes. The hash value of each node is the XOR ( Exclusive OR) result of its  child node's hash values."}]}],"pr":"0f59697d49795b2466530e25b65fc44cd9f29c5304ddf90d133dcd63a571e81d"}