{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of blockchain technology in supply chain management?","a":"Ensuring data security and preventing tampering: Blockchain adopts cryptographic algorithms and consensus mechanisms to protect data security, ensuring that data cannot be tampered with or deleted. Once data is recorded in the blockchain,  it will become permanently unchangeable records, and any modifications will leave traces."}]}],"pr":"8814d87c14f62e50aead9731fadf5ba49ad862b76a21da53864ae6f6f32c7b11"}