{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do objects in a blockchain achieve persistence and immutability?","a":"Consensus  mechanism: Blockchain employs a consensus mechanism to validate transactions and establish new blocks. This process involves multiple participants reaching a consensus on the validity of transactions, ensuring that only legitimate transactions are recorded in the blockchain."}]}],"pr":"9641daeedb3e4bb361db405f94b1647fe65cb7c65fb0325596591e772eed7563"}