{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the fairness and justice of PoS mining be ensured in the blockchain?","a":"Randomly selecting validation nodes: To avoid a specific node controlling the blockchain network, PoS mining systems usually randomly select a certain number of validation nodes to verify transactions. In this way, every node has a chance to become a validator, ensuring  the fairness of the network."}]}],"pr":"67489e78252a298f64b6c5750dc88f34345c0a655aec672e139b6bf9970cc26d"}