{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the decentralized features of blockchain?","a":"Cryptographic protection: Blockchain uses cryptographic algorithms (such as SHA-256) to ensure the security and integrity of the data. By requiring a complex mathematical calculation to change the data in the blockchain, blockchain becomes a robust and secure system against tampering  and fraud."}]}],"pr":"33f5db755cea5c7b54bb68ae62481257de728eb434c9ed7c6bcbae4973cb49ce"}