{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the tamper-proof nature of data ensured in blockchain?","a":"Cryptographic technology: Blockchain employs cryptographic principles, such as public-key and private-key pairs, to digitally  sign and verify each transaction. Only the person holding the private key can sign transactions, thus ensuring the authenticity of the transactions."}]}],"pr":"f44808a9128797cb960e3f1593ea1c068d3cedf99ede5abe8a38126f402ea50b"}