{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What specific types of evidence must satisfy what conditions in a blockchain?","a":"The specific evidence types in blockchain must satisfy the following conditions:\\n\\n1. Immutability: Once the evidence is recorded in the blockchain,  it is difficult to tamper with. This ensures the authenticity and credibility of the data."}]}],"pr":"7dbb6a2fed83ff9ec2573714ef012e4800f7c96d4c147499aa9ff511d8cd06c9"}