{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the common consensus mechanisms in blockchain?","a":"Proof of Work (PoW): This is the earliest proposed consensus mechanism.  Miners prove their contribution to the network by solving a computational problem to obtain the right to record blocks."}]}],"pr":"afae01870c52ebce3fff6c0709c991212825c1ddf3c16957b6ebd294dd5d236e"}