{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can computational resource abuse be prevented in blockchain?","a":"Consensus Mechanism: Blockchain ensures the validity and consistency of data  through consensus mechanisms. The consensus mechanism requires nodes in the network to jointly participate in computing and validating transactions, ensuring the overall rational allocation of computing resources, rather than being concentrated in a few nodes."}]}],"pr":"5fa9f70ed0accbb274c0f9482a699ed550eaa6422808e27abc1220e47c99b070"}