{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the consensus mechanisms of blockchain?","a":"Proof of  Stake (PoS): Compared to PoW, the PoS mechanism determines the node's stake based on the amount and duration of token ownership. The higher the stake, the greater the probability of receiving block rewards. This mechanism reduces the energy consumption of mining, but may lead to a concentration of wealth among a few nodes."}]}],"pr":"c88b24efbac255b6c7a3732c86ba9624e7dbde23824ea153a69a3316f8386adf"}