{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the types of consensus algorithms in blockchain?","a":"Proof of Stake (PoS): Compared with PoW, PoS algorithm selects nodes for  accounting based on the amount and time of holding tokens. Representative projects include Peercoin, etc."}]}],"pr":"755a20c686000073c63db902ef4b6653164a76d949095e27c042af6c88b84a26"}