{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve the security of digital identity authentication?","a":"tamper-proof: The blockchain uses cryptographic  hash functions to ensure that each block contains a hash of the previous block, forming a chain of blocks. This makes it almost"}]}],"pr":"73f24b7d2abb868c1d70245cadb92aab1bd454668f1e12c8f074e0a2a71b3073"}