{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the sources of randomness in blockchain?","a":"Consensus Algorithm：The consensus algorithm in blockchain systems，such as Proof of Work（PoW）and Proof of Stake（PoS），usually introduces a certain amount of randomness between nodes. For example，in the PoW algorithm，miners need to solve a puzzle to  receive block rewards，and the difficulty of this puzzle will be automatically adjusted according to the total computing power of the network，thus ensuring the randomness in the blockchain network."}]}],"pr":"281aa31b26ce9d577c710ef991bad6a14b227c6afdca8719c869614e531810b7"}