{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure that data cannot be tampered with?","a":"Cryptographic protection: Blockchain uses public-private key encryption algorithms for identity verification and data encryption. Each participant has their  own public-private key pair. They sign the data using their private key, and other participants can verify the signature's validity using the public key. This ensures that only those with the correct private key can modify the data, securing its safety."}]}],"pr":"55d41f2eea46c820ed7dd4c9940d612ad3901ff667064932a4eca4b520932866"}