{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the common transaction sending protocols in blockchain?","a":"Bitcoin Protocol: Bitcoin protocol is the first cryptocurrency based  on blockchain technology, whose underlying protocol allows users to conduct peer-to-peer (P2P) transactions."}]}],"pr":"f91822eb55bab25dab681bb4fcaa689c069b36db1411e896428836171eeece16"}