{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of nodes in a blockchain?","a":"Distribution: Nodes are widely distributed throughout the network, with each node storing  a complete copy of the blockchain data."}]}],"pr":"2688bf6f9c63f7dd788e67d130b5b0eade4d1ca992327815d5ff7d052fa2924c"}