{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do blockchain validators regularly clean up chain data?","a":"Blockchain  validators also maintain the chain by updating the ledger with new transactions and ensuring the security and integrity of"}]}],"pr":"a4783e9ee4ff62bd9fc6bc81c95c22481a3de08f7a95b4ee7641c1454b926271"}