{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the applications of private keys in blockchain?","a":"Digital signatures: Private keys can be used for digital signatures, ensuring the authenticity  and non-repudiation of transactions. By signing transactions with private keys, the integrity and traceability of transactions in the blockchain network can be ensured."}]}],"pr":"80140bb3e96460fa7b163d3b45dff0988eb270a5f637b3d4dc066d68245c8f1e"}