{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the self-correcting capability achieved in blockchain?","a":"Cryptographic technology:  Blockchain uses cryptographic technology (such as public keys and private keys) to encrypt and verify data. Each participant can use the public key to encrypt transactions and ensure the security and integrity of the system."}]}],"pr":"ff2adcad6e46a8a3f8e5156c162acbe91e2a4d5fb9986c8ee40d4394e9c62a6a"}